diff --git a/src/tool/BackupUtils.java b/src/tool/BackupUtils.java new file mode 100644 index 0000000..4aa970b --- /dev/null +++ b/src/tool/BackupUtils.java @@ -0,0 +1,382 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 函数分析 +getInstance方法 +所属类：BackupUtils +功能：实现单例模式，若实例sInstance为空，则创建并返回新的BackupUtils实例（传入Context进行初始化），若不为空则直接返回已有实例，保证整个应用中该工具类只有一个实例在运作。 +externalStorageAvailable方法 +所属类：BackupUtils +功能：通过判断外部存储（通常是 SD 卡）的挂载状态是否为Environment.MEDIA_MOUNTED，来返回外部存储是否可用的布尔值，为后续备份操作判断能否将数据写入外部存储做准备。 +exportToText方法 +所属类：BackupUtils +功能：调用内部TextExport类的exportToText方法来执行将笔记数据导出为文本的实际操作，并返回相应的状态码（如成功、外部存储未挂载、系统错误等），外部代码可据此知晓此次导出操作的结果情况。 +getExportedTextFileName方法 +所属类：BackupUtils +功能：返回内部TextExport类中记录的导出文本文件名（mFileName），方便外部获取导出文件的名称信息，比如用于展示给用户或者进行后续文件相关的操作提示等。 +getExportedTextFileDir方法 +所属类：BackupUtils +功能：返回内部TextExport类中记录的导出文本文件所在目录（mFileDirectory），用于知晓文件保存的路径情况，像在日志记录或者引导用户查找备份文件时能提供相应的目录信息。 +TextExport类相关函数 +构造函数： +所属类：TextExport（BackupUtils的内部类） +功能：初始化TEXT_FORMAT数组，从资源中获取格式化字符串数组用于后续文本格式化输出，同时保存传入的Context，并初始化文件名和文件目录为空字符串，为后续操作准备相关数据和资源引用。 +getFormat方法： +所属类：TextExport（BackupUtils的内部类） +功能：根据传入的id参数，从TEXT_FORMAT数组中获取对应的格式化字符串并返回，用于在文本输出时按照特定格式拼接内容，比如格式化日期、内容等信息。 +exportFolderToText方法： +所属类：TextExport（BackupUtils的内部类） +功能：依据传入的文件夹ID查询属于该文件夹的笔记游标，若游标不为null且有数据，遍历游标，先按格式输出笔记的修改日期，再根据笔记ID调用exportNoteToText方法输出笔记具体内容，最后关闭游标，实现将指定文件夹下所有笔记数据输出到给定的打印流中的功能。 +exportNoteToText方法： +所属类：TextExport（BackupUtils的内部类） +功能：依据传入的笔记ID查询该笔记附属数据的游标，若游标不为null且有数据，遍历游标，根据数据的MIME_TYPE判断类型（如通话记录、普通笔记等），按照对应格式输出相应数据（如电话号码、通话日期、笔记内容等），游标遍历完后关闭游标，并输出换行分隔符，完成单个笔记相关数据的文本输出操作。 +exportToText方法： +所属类：TextExport（BackupUtils的内部类） +功能：首先判断外部存储是否可用，不可用则返回对应状态码；接着获取用于输出文本的打印流，若获取失败返回系统错误状态码；然后分别查询符合特定条件的文件夹游标、根文件夹下笔记游标，遍历游标并调用相应的导出方法（exportFolderToText、exportNoteToText）输出数据，最后关闭打印流并返回成功状态码，整体实现将笔记数据按规则导出为文本文件的完整流程。 +getExportToTextPrintStream方法： +所属类：TextExport（BackupUtils的内部类） +功能：先创建一个基于外部存储指定路径和文件名（文件名含当前日期格式化信息）的文件，若创建失败则返回null，成功则记录文件名和文件目录信息，再尝试创建文件输出流并基于此构建打印流，若过程出现异常则返回null，最终返回构建好的用于输出文本的打印流，为文本导出提供输出流对象。 +generateFileMountedOnSDcard方法 +所属类：BackupUtils +功能：根据传入的资源ID（用于指定文件路径、文件名格式）构建文件对象，先创建文件所在目录（若不存在），再创建文件本身（若不存在），若过程出现安全或IO异常则返回null，否则返回构建好的文件对象，用于在外部存储上生成保存备份数据的文本文件。 + */ + +package net.micode.notes.tool; + +import android.content.Context; +import android.database.Cursor; +import android.os.Environment; +import android.text.TextUtils; +import android.text.format.DateFormat; +import android.util.Log; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.DataConstants; +import net.micode.notes.data.Notes.NoteColumns; + +import java.io.File; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.PrintStream; + + +public class BackupUtils { + private static final String TAG = "BackupUtils"; + // Singleton stuff + private static BackupUtils sInstance; + + public static synchronized BackupUtils getInstance(Context context) { + if (sInstance == null) { + sInstance = new BackupUtils(context); + } + return sInstance; + } + + /** + * Following states are signs to represents backup or restore + * status + */ + // Currently, the sdcard is not mounted + public static final int STATE_SD_CARD_UNMOUONTED = 0; + // The backup file not exist + public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; + // The data is not well formated, may be changed by other programs + public static final int STATE_DATA_DESTROIED = 2; + // Some run-time exception which causes restore or backup fails + public static final int STATE_SYSTEM_ERROR = 3; + // Backup or restore success + public static final int STATE_SUCCESS = 4; + + private TextExport mTextExport; + + private BackupUtils(Context context) { + mTextExport = new TextExport(context); + } + + private static boolean externalStorageAvailable() { + return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); + } + + public int exportToText() { + return mTextExport.exportToText(); + } + + public String getExportedTextFileName() { + return mTextExport.mFileName; + } + + public String getExportedTextFileDir() { + return mTextExport.mFileDirectory; + } + + private static class TextExport { + private static final String[] NOTE_PROJECTION = { + NoteColumns.ID, + NoteColumns.MODIFIED_DATE, + NoteColumns.SNIPPET, + NoteColumns.TYPE + }; + + private static final int NOTE_COLUMN_ID = 0; + + private static final int NOTE_COLUMN_MODIFIED_DATE = 1; + + private static final int NOTE_COLUMN_SNIPPET = 2; + + private static final String[] DATA_PROJECTION = { + DataColumns.CONTENT, + DataColumns.MIME_TYPE, + DataColumns.DATA1, + DataColumns.DATA2, + DataColumns.DATA3, + DataColumns.DATA4, + }; + + private static final int DATA_COLUMN_CONTENT = 0; + + private static final int DATA_COLUMN_MIME_TYPE = 1; + + private static final int DATA_COLUMN_CALL_DATE = 2; + + private static final int DATA_COLUMN_PHONE_NUMBER = 4; + + private final String [] TEXT_FORMAT; + private static final int FORMAT_FOLDER_NAME = 0; + private static final int FORMAT_NOTE_DATE = 1; + private static final int FORMAT_NOTE_CONTENT = 2; + + private Context mContext; + private String mFileName; + private String mFileDirectory; + + public TextExport(Context context) { + TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); + mContext = context; + mFileName = ""; + mFileDirectory = ""; + } + + private String getFormat(int id) { + return TEXT_FORMAT[id]; + } + + /** + * Export the folder identified by folder id to text + */ + private void exportFolderToText(String folderId, PrintStream ps) { + // Query notes belong to this folder + Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { + folderId + }, null); + + if (notesCursor != null) { + if (notesCursor.moveToFirst()) { + do { + // Print note's last modified date + ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( + mContext.getString(R.string.format_datetime_mdhm), + notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); + // Query data belong to this note + String noteId = notesCursor.getString(NOTE_COLUMN_ID); + exportNoteToText(noteId, ps); + } while (notesCursor.moveToNext()); + } + notesCursor.close(); + } + } + + /** + * Export note identified by id to a print stream + */ + private void exportNoteToText(String noteId, PrintStream ps) { + Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, + DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { + noteId + }, null); + + if (dataCursor != null) { + if (dataCursor.moveToFirst()) { + do { + String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); + if (DataConstants.CALL_NOTE.equals(mimeType)) { + // Print phone number + String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); + long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); + String location = dataCursor.getString(DATA_COLUMN_CONTENT); + + if (!TextUtils.isEmpty(phoneNumber)) { + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), + phoneNumber)); + } + // Print call date + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat + .format(mContext.getString(R.string.format_datetime_mdhm), + callDate))); + // Print call attachment location + if (!TextUtils.isEmpty(location)) { + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), + location)); + } + } else if (DataConstants.NOTE.equals(mimeType)) { + String content = dataCursor.getString(DATA_COLUMN_CONTENT); + if (!TextUtils.isEmpty(content)) { + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), + content)); + } + } + } while (dataCursor.moveToNext()); + } + dataCursor.close(); + } + // print a line separator between note + try { + ps.write(new byte[] { + Character.LINE_SEPARATOR, Character.LETTER_NUMBER + }); + } catch (IOException e) { + Log.e(TAG, e.toString()); + } + } + + /** + * Note will be exported as text which is user readable + */ + public int exportToText() { + if (!externalStorageAvailable()) { + Log.d(TAG, "Media was not mounted"); + return STATE_SD_CARD_UNMOUONTED; + } + + PrintStream ps = getExportToTextPrintStream(); + if (ps == null) { + Log.e(TAG, "get print stream error"); + return STATE_SYSTEM_ERROR; + } + // First export folder and its notes + Cursor folderCursor = mContext.getContentResolver().query( + Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, + "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND " + + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR " + + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null); + + if (folderCursor != null) { + if (folderCursor.moveToFirst()) { + do { + // Print folder's name + String folderName = ""; + if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { + folderName = mContext.getString(R.string.call_record_folder_name); + } else { + folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET); + } + if (!TextUtils.isEmpty(folderName)) { + ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName)); + } + String folderId = folderCursor.getString(NOTE_COLUMN_ID); + exportFolderToText(folderId, ps); + } while (folderCursor.moveToNext()); + } + folderCursor.close(); + } + + // Export notes in root's folder + Cursor noteCursor = mContext.getContentResolver().query( + Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, + NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID + + "=0", null, null); + + if (noteCursor != null) { + if (noteCursor.moveToFirst()) { + do { + ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( + mContext.getString(R.string.format_datetime_mdhm), + noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); + // Query data belong to this note + String noteId = noteCursor.getString(NOTE_COLUMN_ID); + exportNoteToText(noteId, ps); + } while (noteCursor.moveToNext()); + } + noteCursor.close(); + } + ps.close(); + + return STATE_SUCCESS; + } + + /** + * Get a print stream pointed to the file {@generateExportedTextFile} + */ + private PrintStream getExportToTextPrintStream() { + File file = generateFileMountedOnSDcard(mContext, R.string.file_path, + R.string.file_name_txt_format); + if (file == null) { + Log.e(TAG, "create file to exported failed"); + return null; + } + mFileName = file.getName(); + mFileDirectory = mContext.getString(R.string.file_path); + PrintStream ps = null; + try { + FileOutputStream fos = new FileOutputStream(file); + ps = new PrintStream(fos); + } catch (FileNotFoundException e) { + e.printStackTrace(); + return null; + } catch (NullPointerException e) { + e.printStackTrace(); + return null; + } + return ps; + } + } + + /** + * Generate the text file to store imported data + */ + private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { + StringBuilder sb = new StringBuilder(); + sb.append(Environment.getExternalStorageDirectory()); + sb.append(context.getString(filePathResId)); + File filedir = new File(sb.toString()); + sb.append(context.getString( + fileNameFormatResId, + DateFormat.format(context.getString(R.string.format_date_ymd), + System.currentTimeMillis()))); + File file = new File(sb.toString()); + + try { + if (!filedir.exists()) { + filedir.mkdir(); + } + if (!file.exists()) { + file.createNewFile(); + } + return file; + } catch (SecurityException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } + + return null; + } +} + + diff --git a/src/tool/DataUtils.java b/src/tool/DataUtils.java new file mode 100644 index 0000000..863f1cc --- /dev/null +++ b/src/tool/DataUtils.java @@ -0,0 +1,337 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *总体分析 +这段 Java 代码定义了DataUtils类，提供诸多处理笔记相关数据的实用方法，借助ContentResolver与对应数据存储交互，涵盖笔记删除、移动、存在性判断及数据获取等功能，便于安卓笔记应用的数据操作管理。 +函数分析 +batchDeleteNotes方法 +所属类：DataUtils +功能：对传入要删笔记的ID集合判空、长度判断，构建操作列表批量删笔记，按执行结果返回布尔值表成败，遇异常记日志并返回false。 +moveNoteToFoler方法 +所属类：DataUtils +功能：创建ContentValues存更新数据，用ContentResolver按传入ID更新对应笔记信息，实现单笔记移至指定文件夹。 +batchMoveToFolder方法 +所属类：DataUtils +功能：判传入移动笔记ID集合是否为空，构建操作列表批量更新操作，依执行结果返回布尔值，异常时记日志返回false。 +getUserFolderCount方法 +所属类：DataUtils +功能：用ContentResolver查询符合条件的文件夹记录数量，游标获取并返回数量，用于统计有效文件夹个数。 +visibleInNoteDatabase方法 +所属类：DataUtils +功能：通过ContentResolver查询判断笔记是否符合条件在数据库中可见，依游标记录数量返回布尔值。 +existInNoteDatabase方法 +所属类：DataUtils +功能：借ContentResolver查询笔记是否存在，据游标记录数量返回布尔值。 +existInDataDatabase方法 +所属类：DataUtils +功能：类似查笔记存在的方式，查数据在对应数据库中是否存在，依游标返回布尔值。 +checkVisibleFolderName方法 +所属类：DataUtils +功能：用ContentResolver查指定名称文件夹是否符合条件存在，依游标记录数量返回布尔值。 +getFolderNoteWidget方法 +所属类：DataUtils +功能：ContentResolver查指定文件夹下笔记部件属性，游标遍历封装属性到集合后返回。 +getCallNumberByNoteId方法 +所属类：DataUtils +功能：ContentResolver按条件查对应笔记关联电话号码，游标获取返回，无则返回空字符串。 +getNoteIdByPhoneNumberAndCallDate方法 +所属类：DataUtils +功能：ContentResolver依通话相关条件查对应笔记ID，游标获取返回，无则返回0。 +getSnippetById方法 +所属类：DataUtils +功能：ContentResolver查指定笔记内容片段，游标获取返回，无则抛异常。 +getFormattedSnippet方法 +所属类：DataUtils +功能：格式化传入笔记内容片段，去除两端空白，遇换行截取前面部分后返回。 + */ + +package net.micode.notes.tool; + +import android.content.ContentProviderOperation; +import android.content.ContentProviderResult; +import android.content.ContentResolver; +import android.content.ContentUris; +import android.content.ContentValues; +import android.content.OperationApplicationException; +import android.database.Cursor; +import android.os.RemoteException; +import android.util.Log; + +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.CallNote; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; + +import java.util.ArrayList; +import java.util.HashSet; + + +public class DataUtils { + public static final String TAG = "DataUtils"; + public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { + if (ids == null) { + Log.d(TAG, "the ids is null"); + return true; + } + if (ids.size() == 0) { + Log.d(TAG, "no id is in the hashset"); + return true; + } + + ArrayList operationList = new ArrayList(); + for (long id : ids) { + if(id == Notes.ID_ROOT_FOLDER) { + Log.e(TAG, "Don't delete system folder root"); + continue; + } + ContentProviderOperation.Builder builder = ContentProviderOperation + .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); + operationList.add(builder.build()); + } + try { + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; + } + return true; + } catch (RemoteException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } catch (OperationApplicationException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } + return false; + } + + public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.PARENT_ID, desFolderId); + values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); + values.put(NoteColumns.LOCAL_MODIFIED, 1); + resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); + } + + public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, + long folderId) { + if (ids == null) { + Log.d(TAG, "the ids is null"); + return true; + } + + ArrayList operationList = new ArrayList(); + for (long id : ids) { + ContentProviderOperation.Builder builder = ContentProviderOperation + .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); + builder.withValue(NoteColumns.PARENT_ID, folderId); + builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); + operationList.add(builder.build()); + } + + try { + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; + } + return true; + } catch (RemoteException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } catch (OperationApplicationException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } + return false; + } + + /** + * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}} + */ + public static int getUserFolderCount(ContentResolver resolver) { + Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI, + new String[] { "COUNT(*)" }, + NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", + new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)}, + null); + + int count = 0; + if(cursor != null) { + if(cursor.moveToFirst()) { + try { + count = cursor.getInt(0); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "get folder count failed:" + e.toString()); + } finally { + cursor.close(); + } + } + } + return count; + } + + public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), + null, + NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, + new String [] {String.valueOf(type)}, + null); + + boolean exist = false; + if (cursor != null) { + if (cursor.getCount() > 0) { + exist = true; + } + cursor.close(); + } + return exist; + } + + public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), + null, null, null, null); + + boolean exist = false; + if (cursor != null) { + if (cursor.getCount() > 0) { + exist = true; + } + cursor.close(); + } + return exist; + } + + public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), + null, null, null, null); + + boolean exist = false; + if (cursor != null) { + if (cursor.getCount() > 0) { + exist = true; + } + cursor.close(); + } + return exist; + } + + public static boolean checkVisibleFolderName(ContentResolver resolver, String name) { + Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null, + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + + " AND " + NoteColumns.SNIPPET + "=?", + new String[] { name }, null); + boolean exist = false; + if(cursor != null) { + if(cursor.getCount() > 0) { + exist = true; + } + cursor.close(); + } + return exist; + } + + public static HashSet getFolderNoteWidget(ContentResolver resolver, long folderId) { + Cursor c = resolver.query(Notes.CONTENT_NOTE_URI, + new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE }, + NoteColumns.PARENT_ID + "=?", + new String[] { String.valueOf(folderId) }, + null); + + HashSet set = null; + if (c != null) { + if (c.moveToFirst()) { + set = new HashSet(); + do { + try { + AppWidgetAttribute widget = new AppWidgetAttribute(); + widget.widgetId = c.getInt(0); + widget.widgetType = c.getInt(1); + set.add(widget); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, e.toString()); + } + } while (c.moveToNext()); + } + c.close(); + } + return set; + } + + public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { + Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, + new String [] { CallNote.PHONE_NUMBER }, + CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", + new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, + null); + + if (cursor != null && cursor.moveToFirst()) { + try { + return cursor.getString(0); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "Get call number fails " + e.toString()); + } finally { + cursor.close(); + } + } + return ""; + } + + public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) { + Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, + new String [] { CallNote.NOTE_ID }, + CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL(" + + CallNote.PHONE_NUMBER + ",?)", + new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber }, + null); + + if (cursor != null) { + if (cursor.moveToFirst()) { + try { + return cursor.getLong(0); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "Get call note id fails " + e.toString()); + } + } + cursor.close(); + } + return 0; + } + + public static String getSnippetById(ContentResolver resolver, long noteId) { + Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, + new String [] { NoteColumns.SNIPPET }, + NoteColumns.ID + "=?", + new String [] { String.valueOf(noteId)}, + null); + + if (cursor != null) { + String snippet = ""; + if (cursor.moveToFirst()) { + snippet = cursor.getString(0); + } + cursor.close(); + return snippet; + } + throw new IllegalArgumentException("Note is not found with id: " + noteId); + } + + public static String getFormattedSnippet(String snippet) { + if (snippet != null) { + snippet = snippet.trim(); + int index = snippet.indexOf('\n'); + if (index != -1) { + snippet = snippet.substring(0, index); + } + } + return snippet; + } +} diff --git a/src/tool/GTaskStringUtils.java b/src/tool/GTaskStringUtils.java new file mode 100644 index 0000000..710b9d9 --- /dev/null +++ b/src/tool/GTaskStringUtils.java @@ -0,0 +1,114 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 这段 Java 代码定义了GTaskStringUtils类，其主要作用是作为一个常量定义的工具类，用于集中存放与 GTask 相关的 JSON 数据交互以及笔记相关的一些特定字符串常量。这些常量涵盖了 GTask 操作中如动作类型（创建、获取全部、移动、更新等）、各种实体相关属性（如 ID、名称、父 ID 等）的键名，还有针对特定文件夹、元数据等方面的标识字符串，方便在整个应用中涉及到 GTask 数据处理、笔记分类及元数据管理等业务逻辑时统一引用这些常量，增强代码的可读性与可维护性，避免在不同地方使用硬编码字符串而导致的潜在错误和修改不便等问题。 + */ + +package net.micode.notes.tool; + +public class GTaskStringUtils { + + public final static String GTASK_JSON_ACTION_ID = "action_id"; + + public final static String GTASK_JSON_ACTION_LIST = "action_list"; + + public final static String GTASK_JSON_ACTION_TYPE = "action_type"; + + public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create"; + + public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all"; + + public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move"; + + public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update"; + + public final static String GTASK_JSON_CREATOR_ID = "creator_id"; + + public final static String GTASK_JSON_CHILD_ENTITY = "child_entity"; + + public final static String GTASK_JSON_CLIENT_VERSION = "client_version"; + + public final static String GTASK_JSON_COMPLETED = "completed"; + + public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id"; + + public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id"; + + public final static String GTASK_JSON_DELETED = "deleted"; + + public final static String GTASK_JSON_DEST_LIST = "dest_list"; + + public final static String GTASK_JSON_DEST_PARENT = "dest_parent"; + + public final static String GTASK_JSON_DEST_PARENT_TYPE = "dest_parent_type"; + + public final static String GTASK_JSON_ENTITY_DELTA = "entity_delta"; + + public final static String GTASK_JSON_ENTITY_TYPE = "entity_type"; + + public final static String GTASK_JSON_GET_DELETED = "get_deleted"; + + public final static String GTASK_JSON_ID = "id"; + + public final static String GTASK_JSON_INDEX = "index"; + + public final static String GTASK_JSON_LAST_MODIFIED = "last_modified"; + + public final static String GTASK_JSON_LATEST_SYNC_POINT = "latest_sync_point"; + + public final static String GTASK_JSON_LIST_ID = "list_id"; + + public final static String GTASK_JSON_LISTS = "lists"; + + public final static String GTASK_JSON_NAME = "name"; + + public final static String GTASK_JSON_NEW_ID = "new_id"; + + public final static String GTASK_JSON_NOTES = "notes"; + + public final static String GTASK_JSON_PARENT_ID = "parent_id"; + + public final static String GTASK_JSON_PRIOR_SIBLING_ID = "prior_sibling_id"; + + public final static String GTASK_JSON_RESULTS = "results"; + + public final static String GTASK_JSON_SOURCE_LIST = "source_list"; + + public final static String GTASK_JSON_TASKS = "tasks"; + + public final static String GTASK_JSON_TYPE = "type"; + + public final static String GTASK_JSON_TYPE_GROUP = "GROUP"; + + public final static String GTASK_JSON_TYPE_TASK = "TASK"; + + public final static String GTASK_JSON_USER = "user"; + + public final static String MIUI_FOLDER_PREFFIX = "[MIUI_Notes]"; + + public final static String FOLDER_DEFAULT = "Default"; + + public final static String FOLDER_CALL_NOTE = "Call_Note"; + + public final static String FOLDER_META = "METADATA"; + + public final static String META_HEAD_GTASK_ID = "meta_gid"; + + public final static String META_HEAD_NOTE = "meta_note"; + + public final static String META_HEAD_DATA = "meta_data"; + + public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE"; + +} diff --git a/src/tool/ResourceParser.java b/src/tool/ResourceParser.java new file mode 100644 index 0000000..275eebb --- /dev/null +++ b/src/tool/ResourceParser.java @@ -0,0 +1,210 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 代码定义了ResourceParser类，主要用于对应用中的各类资源（如背景图片资源、文本外观样式资源等）进行管理与解析，方便根据不同的条件获取对应的资源标识符（如资源 ID）。它内部定义了多个静态内部类，分别针对笔记背景、笔记项背景、部件背景以及文本外观等不同方面的资源进行组织，同时还定义了一些表示默认状态（如默认颜色、默认字体大小等）的常量。通过结合应用的偏好设置等逻辑，可以灵活地获取相应的资源 ID，为实现界面的多样化显示（例如不同颜色主题、不同字体大小展示等）提供了资源获取的统一入口，有助于提升代码在资源管理方面的可维护性和可扩展性。 +函数分析 +NoteBgResources类相关函数 +所属类：ResourceParser.NoteBgResources（ResourceParser的内部类） +功能： +getNoteBgResource方法：根据传入的id参数，从预定义的BG_EDIT_RESOURCES数组中获取对应的笔记编辑背景资源的ID并返回，用于获取指定的笔记编辑背景相关资源。 +getNoteTitleBgResource方法：依据传入的id参数，从BG_EDIT_TITLE_RESOURCES数组中获取对应的笔记标题编辑背景资源的ID并返回，方便获取相应的笔记标题编辑背景资源。 +getDefaultBgId方法 +所属类：ResourceParser +功能：通过获取应用的默认共享偏好设置，判断是否开启了特定的背景颜色随机设置的偏好项（NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY对应的布尔值），若开启则随机生成一个在NoteBgResources.BG_EDIT_RESOURCES数组长度范围内的索引值作为背景ID返回，若未开启则返回默认的背景颜色ID（BG_DEFAULT_COLOR），以此来确定默认的背景资源ID。 +NoteItemBgResources类相关函数 +所属类：ResourceParser.NoteItemBgResources（ResourceParser的内部类） +功能： +getNoteBgFirstRes方法：根据传入的id参数，从BG_FIRST_RESOURCES数组中获取对应的笔记项首行背景资源的ID并返回，用于获取特定的笔记项首行背景资源。 +getNoteBgLastRes方法：依据传入的id参数，从BG_LAST_RESOURCES数组中获取对应的笔记项末行背景资源的ID并返回，方便获取相应的笔记项末行背景资源。 +getNoteBgSingleRes方法：按照传入的id参数，从BG_SINGLE_RESOURCES数组中获取对应的单个笔记项背景资源的ID并返回，用于获取单个笔记项对应的背景资源。 +getNoteBgNormalRes方法：根据传入的id参数，从BG_NORMAL_RESOURCES数组中获取对应的笔记项普通行背景资源的ID并返回，便于获取笔记项普通行的背景资源。 +getFolderBgRes方法：直接返回代表文件夹背景资源的ID（R.drawable.list_folder），用于获取文件夹的背景资源。 +WidgetBgResources类相关函数 +所属类：ResourceParser.WidgetBgResources（ResourceParser的内部类） +功能： +getWidget2xBgResource方法：根据传入的id参数，从BG_2X_RESOURCES数组中获取对应的2x部件背景资源的ID并返回，用于获取相应尺寸部件的背景资源。 +getWidget4xBgResource方法：依据传入的id参数，从BG_4X_RESOURCES数组中获取对应的4x部件背景资源的ID并返回，方便获取特定尺寸部件的背景资源。 +TextAppearanceResources类相关函数 +所属类：ResourceParser.TextAppearanceResources（ResourceParser的内部类） +功能： +getTexAppearanceResource方法：根据传入的id参数，先判断该参数是否超出TEXTAPPEARANCE_RESOURCES数组长度范围，若超出则返回默认的字体大小对应的资源ID（BG_DEFAULT_FONT_SIZE），若未超出则从该数组中获取对应的文本外观资源的ID并返回，用于获取合适的文本外观样式资源。 +getResourcesSize方法：直接返回TEXTAPPEARANCE_RESOURCES数组的长度，用于知晓文本外观资源的数量情况。 + */ + +package net.micode.notes.tool; + +import android.content.Context; +import android.preference.PreferenceManager; + +import net.micode.notes.R; +import net.micode.notes.ui.NotesPreferenceActivity; + +public class ResourceParser { + + public static final int YELLOW = 0; + public static final int BLUE = 1; + public static final int WHITE = 2; + public static final int GREEN = 3; + public static final int RED = 4; + + public static final int BG_DEFAULT_COLOR = YELLOW; + + public static final int TEXT_SMALL = 0; + public static final int TEXT_MEDIUM = 1; + public static final int TEXT_LARGE = 2; + public static final int TEXT_SUPER = 3; + + public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM; + + public static class NoteBgResources { + private final static int [] BG_EDIT_RESOURCES = new int [] { + R.drawable.edit_yellow, + R.drawable.edit_blue, + R.drawable.edit_white, + R.drawable.edit_green, + R.drawable.edit_red + }; + + private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] { + R.drawable.edit_title_yellow, + R.drawable.edit_title_blue, + R.drawable.edit_title_white, + R.drawable.edit_title_green, + R.drawable.edit_title_red + }; + + public static int getNoteBgResource(int id) { + return BG_EDIT_RESOURCES[id]; + } + + public static int getNoteTitleBgResource(int id) { + return BG_EDIT_TITLE_RESOURCES[id]; + } + } + + public static int getDefaultBgId(Context context) { + if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean( + NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) { + return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length); + } else { + return BG_DEFAULT_COLOR; + } + } + + public static class NoteItemBgResources { + private final static int [] BG_FIRST_RESOURCES = new int [] { + R.drawable.list_yellow_up, + R.drawable.list_blue_up, + R.drawable.list_white_up, + R.drawable.list_green_up, + R.drawable.list_red_up + }; + + private final static int [] BG_NORMAL_RESOURCES = new int [] { + R.drawable.list_yellow_middle, + R.drawable.list_blue_middle, + R.drawable.list_white_middle, + R.drawable.list_green_middle, + R.drawable.list_red_middle + }; + + private final static int [] BG_LAST_RESOURCES = new int [] { + R.drawable.list_yellow_down, + R.drawable.list_blue_down, + R.drawable.list_white_down, + R.drawable.list_green_down, + R.drawable.list_red_down, + }; + + private final static int [] BG_SINGLE_RESOURCES = new int [] { + R.drawable.list_yellow_single, + R.drawable.list_blue_single, + R.drawable.list_white_single, + R.drawable.list_green_single, + R.drawable.list_red_single + }; + + public static int getNoteBgFirstRes(int id) { + return BG_FIRST_RESOURCES[id]; + } + + public static int getNoteBgLastRes(int id) { + return BG_LAST_RESOURCES[id]; + } + + public static int getNoteBgSingleRes(int id) { + return BG_SINGLE_RESOURCES[id]; + } + + public static int getNoteBgNormalRes(int id) { + return BG_NORMAL_RESOURCES[id]; + } + + public static int getFolderBgRes() { + return R.drawable.list_folder; + } + } + + public static class WidgetBgResources { + private final static int [] BG_2X_RESOURCES = new int [] { + R.drawable.widget_2x_yellow, + R.drawable.widget_2x_blue, + R.drawable.widget_2x_white, + R.drawable.widget_2x_green, + R.drawable.widget_2x_red, + }; + + public static int getWidget2xBgResource(int id) { + return BG_2X_RESOURCES[id]; + } + + private final static int [] BG_4X_RESOURCES = new int [] { + R.drawable.widget_4x_yellow, + R.drawable.widget_4x_blue, + R.drawable.widget_4x_white, + R.drawable.widget_4x_green, + R.drawable.widget_4x_red + }; + + public static int getWidget4xBgResource(int id) { + return BG_4X_RESOURCES[id]; + } + } + + public static class TextAppearanceResources { + private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] { + R.style.TextAppearanceNormal, + R.style.TextAppearanceMedium, + R.style.TextAppearanceLarge, + R.style.TextAppearanceSuper + }; + + public static int getTexAppearanceResource(int id) { + /** + * HACKME: Fix bug of store the resource id in shared preference. + * The id may larger than the length of resources, in this case, + * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE} + */ + if (id >= TEXTAPPEARANCE_RESOURCES.length) { + return BG_DEFAULT_FONT_SIZE; + } + return TEXTAPPEARANCE_RESOURCES[id]; + } + + public static int getResourcesSize() { + return TEXTAPPEARANCE_RESOURCES.length; + } + } +} diff --git a/src/ui/AlarmAlertActivity.java b/src/ui/AlarmAlertActivity.java new file mode 100644 index 0000000..20cdf88 --- /dev/null +++ b/src/ui/AlarmAlertActivity.java @@ -0,0 +1,191 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + *123 + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 以下是这段代码中主要的函数及其功能介绍： +onCreate 函数 +所属类：AlarmAlertActivity +功能： +首先调用父类（Activity）的 onCreate 方法进行基础的初始化操作。 +通过 requestWindowFeature 方法请求去除 Activity 的标题栏（使用 Window.FEATURE_NO_TITLE 特性）。 +获取当前窗口对象 win，并添加一些窗口相关的标志位，例如 FLAG_SHOW_WHEN_LOCKED 让窗口在屏幕锁定时也能显示，还会根据屏幕是否亮起（通过 isScreenOn 函数判断）来添加如 FLAG_KEEP_SCREEN_ON 等其他与屏幕状态控制相关的标志位，用于控制屏幕的显示和锁定等行为。 +从传入的 Intent 中获取相关数据，尝试解析出笔记的 ID（mNoteId）以及对应的简短内容片段（mSnippet），若解析出现 IllegalArgumentException 异常则打印堆栈信息并返回，不继续后续流程。 +创建 MediaPlayer 实例 mPlayer，接着判断笔记在数据库中的可见性（通过 DataUtils.visibleInNoteDatabase 函数判断），如果可见则调用 showActionDialog 显示操作对话框，并调用 playAlarmSound 播放闹钟声音，若不可见则直接结束当前 Activity。 +isScreenOn 函数 +所属类：AlarmAlertActivity +功能：获取系统的电源管理服务（PowerManager），通过调用其 isScreenOn 方法来判断当前屏幕是否处于亮起状态，返回一个布尔值，用于后续决定添加哪些窗口相关的标志位等操作。 +playAlarmSound 函数 +所属类：AlarmAlertActivity +功能： +首先通过 RingtoneManager.getActualDefaultRingtoneUri 方法获取系统默认闹钟铃声的 Uri 地址。 +接着从系统设置中获取静音模式影响的音频流相关设置（通过 Settings.System.getInt 获取 Settings.System.MODE_RINGER_STREAMS_AFFECTED 的值），根据其值来设置 MediaPlayer（mPlayer）的音频流类型，若满足特定条件则设置为获取到的 silentModeStreams，否则设置为 AudioManager.STREAM_ALARM。 +然后尝试设置 MediaPlayer 的数据源（通过 setDataSource 方法传入当前 Activity 上下文和铃声 Uri），并进行准备（prepare）操作，设置为循环播放（setLooping 为 true），最后启动播放（start）。过程中如果出现如 IllegalArgumentException、SecurityException、IllegalStateException、IOException 等异常会打印相应的堆栈信息。 +showActionDialog 函数 +所属类：AlarmAlertActivity +功能： +创建一个 AlertDialog.Builder 实例用于构建对话框，设置对话框的标题（通过 R.string.app_name 资源字符串获取标题内容）、消息内容（使用之前获取的笔记内容片段 mSnippet）。 +设置对话框的确定按钮（通过 setPositiveButton 方法，按钮文本使用 R.string.notealert_ok 资源字符串，点击事件绑定到当前类实现的 onClick 方法），并且在屏幕亮起的情况下（通过 isScreenOn 函数判断），设置进入按钮（通过 setNegativeButton 方法，按钮文本使用 R.string.notealert_enter 资源字符串，点击事件同样绑定到 onClick 方法）。 +最后调用 show 方法显示对话框，并设置对话框关闭的监听器（通过 setOnDismissListener 绑定到当前类实现的 onDismiss 方法）。 +onClick 函数 +所属类：AlarmAlertActivity +功能：实现了 DialogInterface.OnClickListener 接口的方法，根据点击对话框按钮的 which 参数进行不同操作。当点击了对话框的否定（消极）按钮（对应 DialogInterface.BUTTON_NEGATIVE，也就是 notealert_enter 按钮）时，创建一个新的 Intent，指定目标 Activity 为 NoteEditActivity，设置 Intent 的动作（ACTION_VIEW）以及传递笔记的 ID（通过 putExtra 传递 Intent.EXTRA_UID 附加数据），然后启动对应的 Activity，用于进入笔记编辑页面等相关操作。对于其他按钮点击情况暂时不做额外处理（default 分支）。 +onDismiss 函数 +所属类：AlarmAlertActivity +功能：实现了 DialogInterface.OnDismissListener 接口的方法，当对话框关闭时被调用。在这个函数中，会调用 stopAlarmSound 函数停止正在播放的闹钟声音，然后结束当前 Activity，完成整个与闹钟提醒相关的流程清理和关闭操作。 +stopAlarmSound 函数 +所属类：AlarmAlertActivity +功能：用于停止并释放 MediaPlayer 资源。首先判断 mPlayer 是否为 null，如果不为 null，则调用 stop 方法停止播放，接着调用 release 方法释放相关资源，最后将 mPlayer 置为 null，确保资源被正确回收，避免内存泄漏等问题。 + */ + +package net.micode.notes.ui; + +import android.app.Activity; +import android.app.AlertDialog; +import android.content.Context; +import android.content.DialogInterface; +import android.content.DialogInterface.OnClickListener; +import android.content.DialogInterface.OnDismissListener; +import android.content.Intent; +import android.media.AudioManager; +import android.media.MediaPlayer; +import android.media.RingtoneManager; +import android.net.Uri; +import android.os.Bundle; +import android.os.PowerManager; +import android.provider.Settings; +import android.view.Window; +import android.view.WindowManager; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.DataUtils; + +import java.io.IOException; + + +public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { + private long mNoteId; + private String mSnippet; + private static final int SNIPPET_PREW_MAX_LEN = 60; + MediaPlayer mPlayer; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + requestWindowFeature(Window.FEATURE_NO_TITLE); + + final Window win = getWindow(); + win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); + + if (!isScreenOn()) { + win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON + | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON + | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON + | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); + } + + Intent intent = getIntent(); + + try { + mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); + mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); + mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, + SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) + : mSnippet; + } catch (IllegalArgumentException e) { + e.printStackTrace(); + return; + } + + mPlayer = new MediaPlayer(); + if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { + showActionDialog(); + playAlarmSound(); + } else { + finish(); + } + } + + private boolean isScreenOn() { + PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); + return pm.isScreenOn(); + } + + private void playAlarmSound() { + Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); + + int silentModeStreams = Settings.System.getInt(getContentResolver(), + Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); + + if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { + mPlayer.setAudioStreamType(silentModeStreams); + } else { + mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); + } + try { + mPlayer.setDataSource(this, url); + mPlayer.prepare(); + mPlayer.setLooping(true); + mPlayer.start(); + } catch (IllegalArgumentException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (SecurityException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (IllegalStateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (IOException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + + private void showActionDialog() { + AlertDialog.Builder dialog = new AlertDialog.Builder(this); + dialog.setTitle(R.string.app_name); + dialog.setMessage(mSnippet); + dialog.setPositiveButton(R.string.notealert_ok, this); + if (isScreenOn()) { + dialog.setNegativeButton(R.string.notealert_enter, this); + } + dialog.show().setOnDismissListener(this); + } + + public void onClick(DialogInterface dialog, int which) { + switch (which) { + case DialogInterface.BUTTON_NEGATIVE: + Intent intent = new Intent(this, NoteEditActivity.class); + intent.setAction(Intent.ACTION_VIEW); + intent.putExtra(Intent.EXTRA_UID, mNoteId); + startActivity(intent); + break; + default: + break; + } + } + + public void onDismiss(DialogInterface dialog) { + stopAlarmSound(); + finish(); + } + + private void stopAlarmSound() { + if (mPlayer != null) { + mPlayer.stop(); + mPlayer.release(); + mPlayer = null; + } + } +} diff --git a/src/ui/AlarmInitReceiver.java b/src/ui/AlarmInitReceiver.java new file mode 100644 index 0000000..30797d2 --- /dev/null +++ b/src/ui/AlarmInitReceiver.java @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 当接收到系统广播时（在AlarmInitReceiver类的onReceive方法中处理广播接收逻辑），首先获取当前系统时间，然后从与笔记相关的内容提供者（通过Notes.CONTENT_NOTE_URI指定）中查询出提醒日期大于当前时间且类型为普通笔记类型的记录，查询结果只获取笔记的ID和提醒日期这两个字段。 +对于查询到的每条符合条件的笔记记录，程序会创建一个Intent，将当前笔记的ID附加到指定的Uri上并设置为该Intent的数据部分，接着创建一个对应的PendingIntent用于广播操作，最后获取系统的AlarmManager服务，设置一个基于实时时钟（RTC_WAKEUP类型）的闹钟提醒，当到达提醒日期时，系统会发送广播触发AlarmReceiver（在代码中Intent指定的目标广播接收者类）的相应逻辑，从而实现根据笔记的提醒设置来初始化闹钟提醒功能，确保在合适的时间提醒用户相关笔记的事项。 + + *onReceive 函数 +所属类：AlarmInitReceiver，它继承自 BroadcastReceiver，意味着这个类用于接收系统广播并处理相应逻辑。 +功能： +首先获取当前的系统时间（以毫秒为单位，通过 System.currentTimeMillis 方法），将其存储在 currentDate 变量中，这个时间会用于后续的数据库查询条件判断。 +使用 context.getContentResolver().query 方法从内容提供者（此处应该是和笔记相关的数据存储，通过 Notes.CONTENT_NOTE_URI 指定查询的数据源）中查询数据。查询的字段通过 PROJECTION 数组指定，只获取笔记的 ID（NoteColumns.ID）和提醒日期（NoteColumns.ALERTED_DATE）这两个字段。查询的筛选条件是提醒日期大于当前日期（NoteColumns.ALERTED_DATE + ">?"）并且笔记类型为普通笔记类型（NoteColumns.TYPE + "=" + Notes.TYPE_NOTE），其中当前日期作为参数传入（通过 new String[] { String.valueOf(currentDate) }），排序规则为 null（即不指定排序）。 +接着判断查询得到的游标 c 是否为 null，如果不为 null，则进一步判断游标是否能移动到第一条记录（通过 moveToFirst 方法），若可以，进入循环（do-while 循环，通过 moveToNext 方法判断是否还有下一条记录来决定循环是否继续）。在循环内： +获取当前记录对应的提醒日期（通过 c.getLong(COLUMN_ALERTED_DATE) 获取对应列的值）。 +创建一个新的 Intent，指定其目标广播接收者为 AlarmReceiver 类（意味着后续会将这个 Intent 作为广播发送给 AlarmReceiver 处理相关逻辑），并通过 ContentUris.withAppendedId 方法将当前笔记的 ID 附加到 Notes.CONTENT_NOTE_URI 上，设置为这个 Intent 的数据部分，用于传递具体是哪个笔记的相关信息。 +根据这个 Intent 创建一个 PendingIntent，它可以看作是一种延迟执行或者在特定条件下执行的 Intent，此处使用 PendingIntent.getBroadcast 方法，表明这是一个用于广播的 PendingIntent，并且设置请求码为 0 等相关参数。 +获取系统的 AlarmManager 服务（通过 context.getSystemService(Context.ALARM_SERVICE)），然后使用 set 方法设置一个闹钟提醒，闹钟类型为 RTC_WAKEUP（表示在指定的绝对时间唤醒设备来触发提醒，基于实时时钟），提醒时间为之前获取的 alertDate，触发的 PendingIntent 就是刚刚创建的那个，这样当到达指定提醒时间时，系统就会发送广播触发 AlarmReceiver 对应的逻辑。 +最后，如果游标 c 不为 null，在处理完所有符合条件的记录后，通过 c.close 方法关闭游标，释放相关资源，避免内存泄漏等问题。 +关于 PROJECTION 数组相关常量 +功能说明： +PROJECTION 数组定义了查询数据库时要获取的字段列表，这里明确指定只获取笔记的 ID（对应 NoteColumns.ID）和提醒日期（对应 NoteColumns.ALERTED_DATE）这两个字段，用于后续在循环中获取相应数据来设置闹钟提醒等操作。 +COLUMN_ID 和 COLUMN_ALERTED_DATE 这两个常量分别定义了在查询结果游标中对应字段的索引位置，方便后续通过游标获取对应列的值，例如 c.getLong(COLUMN_ALERTED_DATE) 就是按照这个定义好的索引位置准确获取提醒日期字段的值，代码结构上更加清晰和便于维护，避免直接使用硬编码的索引数字。 + */ + +package net.micode.notes.ui; + +import android.app.AlarmManager; +import android.app.PendingIntent; +import android.content.BroadcastReceiver; +import android.content.ContentUris; +import android.content.Context; +import android.content.Intent; +import android.database.Cursor; + +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; + + +public class AlarmInitReceiver extends BroadcastReceiver { + + private static final String [] PROJECTION = new String [] { + NoteColumns.ID, + NoteColumns.ALERTED_DATE + }; + + private static final int COLUMN_ID = 0; + private static final int COLUMN_ALERTED_DATE = 1; + + @Override + public void onReceive(Context context, Intent intent) { + long currentDate = System.currentTimeMillis(); + Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, + PROJECTION, + NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, + new String[] { String.valueOf(currentDate) }, + null); + + if (c != null) { + if (c.moveToFirst()) { + do { + long alertDate = c.getLong(COLUMN_ALERTED_DATE); + Intent sender = new Intent(context, AlarmReceiver.class); + sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID))); + PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0); + AlarmManager alermManager = (AlarmManager) context + .getSystemService(Context.ALARM_SERVICE); + alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent); + } while (c.moveToNext()); + } + c.close(); + } + } +} diff --git a/src/ui/AlarmReceiver.java b/src/ui/AlarmReceiver.java new file mode 100644 index 0000000..fc1d541 --- /dev/null +++ b/src/ui/AlarmReceiver.java @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 程序定义了一个名为AlarmReceiver的广播接收者类，其主要功能是在接收到相应广播后，进行一系列操作来启动一个新的Activity（AlarmAlertActivity）。通过设置相关的Intent标志位以及指定目标Activity类，利用Context的startActivity方法来启动该Activity，整体在安卓系统的广播机制中起到了从接收到广播到触发对应界面显示的衔接作用，从而可以基于之前设置的闹钟提醒等相关广播触发逻辑，展示出提醒用户的具体界面（由AlarmAlertActivity负责呈现）。 +函数分析 +onReceive函数： +所属类：AlarmReceiver，继承自BroadcastReceiver，专门用于处理接收到的广播消息。 +功能： +首先，使用intent.setClass方法对传入的Intent进行设置，将其目标类指定为AlarmAlertActivity，也就是告诉系统，接下来要启动的是这个Activity，以此来确定具体要展示的界面内容。 +接着，通过intent.addFlags方法给Intent添加FLAG_ACTIVITY_NEW_TASK标志位，这个标志位的作用是让启动的Activity在新的任务栈中进行创建和运行，这对于广播接收者启动Activity的场景来说是很有必要的，确保Activity能正确启动并展示给用户，避免一些因任务栈相关问题导致的启动异常等情况。 +最后，调用context.startActivity方法，传入处理后的Intent，从而触发启动AlarmAlertActivity，完成从接收到广播到展示对应提醒界面的完整流程。 + */ + +package net.micode.notes.ui; + +import android.content.BroadcastReceiver; +import android.content.Context; +import android.content.Intent; + +public class AlarmReceiver extends BroadcastReceiver { + @Override + public void onReceive(Context context, Intent intent) { + intent.setClass(context, AlarmAlertActivity.class); + intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + context.startActivity(intent); + } +} diff --git a/src/ui/DateTimePicker.java b/src/ui/DateTimePicker.java new file mode 100644 index 0000000..07345dc --- /dev/null +++ b/src/ui/DateTimePicker.java @@ -0,0 +1,510 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 代码定义了一个名为DateTimePicker的自定义视图类，用于实现一个方便用户选择日期和时间的交互组件。它基于安卓的相关时间处理类以及视图组件（如NumberPicker）构建而成，支持 24 小时制和 12 小时制（含 AM/PM 标识）的时间显示与选择，并且可以方便地获取和设置年、月、日、时、分等具体时间信息，同时提供了相应的监听器接口，当时间相关的值发生改变时能触发回调通知外部代码，整体旨在为安卓应用中涉及时间选择的场景提供一个可定制且功能较全面的 UI 组件。 +函数分析 +构造函数相关 +DateTimePicker(Context context)、DateTimePicker(Context context, long date)、DateTimePicker(Context context, long date, boolean is24HourView)： +功能概述：这几个是重载的构造函数，用于创建DateTimePicker实例。它们根据传入参数的不同来初始化组件的不同状态。最基础的构造函数会以当前系统时间作为初始时间进行初始化，而带有日期参数的构造函数则按照传入的指定日期来初始化，带有额外布尔值参数的构造函数还可以指定是否采用 24 小时制来初始化时间显示模式等。 +具体细节： +在构造函数内部，首先获取一个Calendar实例用于表示日期时间，标记正在初始化（mInitialising设为true），根据当前小时数判断是上午还是下午（确定mIsAm的值），然后通过inflate方法加载对应的布局文件（R.layout.datetime_picker）来构建视图的外观。 +接着获取布局中的各个NumberPicker组件（分别对应日期、小时、分钟、AM/PM），并为它们设置合适的最小值、最大值以及各自对应的OnValueChangeListener监听器，这些监听器会在对应NumberPicker的值发生改变时执行相应逻辑来更新整个时间状态以及触发对外的时间改变通知等。例如，mOnDateChangedListener用于处理日期选择改变时的逻辑，如更新日期、触发整体时间改变通知等。 +之后调用一系列update开头的函数（如updateDateControl、updateHourControl、updateAmPmControl）来初始化各个时间相关组件的显示内容和状态，按照传入的参数设置是否为 24 小时制（set24HourView方法调用），设置初始时间（通过setCurrentDate相关方法），设置组件的启用状态（调用setEnabled方法），最后将mInitialising设为false表示初始化完成。 +时间获取相关函数 +getCurrentDateInTimeMillis()： +功能：返回当前通过DateTimePicker组件所表示的日期时间对应的毫秒数，通过获取内部Calendar实例（mDate）的时间毫秒值来实现，外部代码可以利用这个值来进一步存储或者传递该时间信息等。 +getCurrentYear()、getCurrentMonth()、getCurrentDay()、getCurrentHourOfDay()、getCurrentMinute()： +功能：这些函数分别用于获取当前在DateTimePicker组件中所表示时间的年、月、日、24 小时制的小时数、分钟数，都是通过调用内部Calendar实例（mDate）的对应get方法（如Calendar.YEAR、Calendar.MONTH等）来获取相应的值，方便外部代码获取具体的时间字段信息。 +时间设置相关函数 +setCurrentDate(long date)、setCurrentDate(int year, int month, int dayOfMonth, int hourOfDay, int minute)： +功能：前者接收一个表示日期时间的毫秒数参数，后者接收年、月、日、小时、分钟的具体整数值参数，它们最终都是调用内部的一系列setCurrent开头的函数（如setCurrentYear、setCurrentMonth等）来分别设置对应的时间字段，在设置过程中会进行一些合理性判断（如判断是否正在初始化以及当前值与传入值是否相同等情况来决定是否执行更新操作），并且更新相关的时间显示组件以及触发时间改变的通知（通过onDateTimeChanged方法）。 +setCurrentYear(int year)、setCurrentMonth(int month)、setCurrentDay(int dayOfMonth)、setCurrentHour(int hourOfDay)、setCurrentMinute(int minute)： +功能：这些函数分别用于单独设置时间中的年、月、日、小时、分钟字段的值，同样在设置时会进行一些前置判断（如是否正在初始化以及当前值与传入值对比等），然后通过mDate（Calendar实例）的对应set方法来更新内部时间状态，并且会更新相应的时间显示组件以及触发时间改变的通知，确保整个DateTimePicker组件的时间状态和显示能保持一致并且外部能得知时间的改变情况。 +时间显示模式相关函数 +is24HourView()： +功能：返回一个布尔值，用于表示当前DateTimePicker组件是否处于 24 小时制显示时间的模式，通过查看内部的mIs24HourView变量的值来确定，外部代码可以利用这个函数来知晓当前的时间显示格式情况。 +set24HourView(boolean is24HourView)： +功能：用于设置DateTimePicker组件的时间显示模式，根据传入的布尔值参数来决定是否切换为 24 小时制或 12 小时制（含 AM/PM 显示）。在切换过程中，会调整AmPmSpinner组件的可见性，更新小时选择组件（HourSpinner）的取值范围，重新设置当前小时数并更新 AM/PM 显示控制等相关操作，以确保整个组件的显示与设置的时间显示模式相匹配。 + */ + +package net.micode.notes.ui; + +import java.text.DateFormatSymbols; +import java.util.Calendar; + +import net.micode.notes.R; + + +import android.content.Context; +import android.text.format.DateFormat; +import android.view.View; +import android.widget.FrameLayout; +import android.widget.NumberPicker; + +public class DateTimePicker extends FrameLayout { + + private static final boolean DEFAULT_ENABLE_STATE = true; + + private static final int HOURS_IN_HALF_DAY = 12; + private static final int HOURS_IN_ALL_DAY = 24; + private static final int DAYS_IN_ALL_WEEK = 7; + private static final int DATE_SPINNER_MIN_VAL = 0; + private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1; + private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0; + private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23; + private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1; + private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12; + private static final int MINUT_SPINNER_MIN_VAL = 0; + private static final int MINUT_SPINNER_MAX_VAL = 59; + private static final int AMPM_SPINNER_MIN_VAL = 0; + private static final int AMPM_SPINNER_MAX_VAL = 1; + + private final NumberPicker mDateSpinner; + private final NumberPicker mHourSpinner; + private final NumberPicker mMinuteSpinner; + private final NumberPicker mAmPmSpinner; + private Calendar mDate; + + private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; + + private boolean mIsAm; + + private boolean mIs24HourView; + + private boolean mIsEnabled = DEFAULT_ENABLE_STATE; + + private boolean mInitialising; + + private OnDateTimeChangedListener mOnDateTimeChangedListener; + + private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() { + @Override + public void onValueChange(NumberPicker picker, int oldVal, int newVal) { + mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal); + updateDateControl(); + onDateTimeChanged(); + } + }; + + private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() { + @Override + public void onValueChange(NumberPicker picker, int oldVal, int newVal) { + boolean isDateChanged = false; + Calendar cal = Calendar.getInstance(); + if (!mIs24HourView) { + if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) { + cal.setTimeInMillis(mDate.getTimeInMillis()); + cal.add(Calendar.DAY_OF_YEAR, 1); + isDateChanged = true; + } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { + cal.setTimeInMillis(mDate.getTimeInMillis()); + cal.add(Calendar.DAY_OF_YEAR, -1); + isDateChanged = true; + } + if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY || + oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { + mIsAm = !mIsAm; + updateAmPmControl(); + } + } else { + if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) { + cal.setTimeInMillis(mDate.getTimeInMillis()); + cal.add(Calendar.DAY_OF_YEAR, 1); + isDateChanged = true; + } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) { + cal.setTimeInMillis(mDate.getTimeInMillis()); + cal.add(Calendar.DAY_OF_YEAR, -1); + isDateChanged = true; + } + } + int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY); + mDate.set(Calendar.HOUR_OF_DAY, newHour); + onDateTimeChanged(); + if (isDateChanged) { + setCurrentYear(cal.get(Calendar.YEAR)); + setCurrentMonth(cal.get(Calendar.MONTH)); + setCurrentDay(cal.get(Calendar.DAY_OF_MONTH)); + } + } + }; + + private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() { + @Override + public void onValueChange(NumberPicker picker, int oldVal, int newVal) { + int minValue = mMinuteSpinner.getMinValue(); + int maxValue = mMinuteSpinner.getMaxValue(); + int offset = 0; + if (oldVal == maxValue && newVal == minValue) { + offset += 1; + } else if (oldVal == minValue && newVal == maxValue) { + offset -= 1; + } + if (offset != 0) { + mDate.add(Calendar.HOUR_OF_DAY, offset); + mHourSpinner.setValue(getCurrentHour()); + updateDateControl(); + int newHour = getCurrentHourOfDay(); + if (newHour >= HOURS_IN_HALF_DAY) { + mIsAm = false; + updateAmPmControl(); + } else { + mIsAm = true; + updateAmPmControl(); + } + } + mDate.set(Calendar.MINUTE, newVal); + onDateTimeChanged(); + } + }; + + private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() { + @Override + public void onValueChange(NumberPicker picker, int oldVal, int newVal) { + mIsAm = !mIsAm; + if (mIsAm) { + mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY); + } else { + mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY); + } + updateAmPmControl(); + onDateTimeChanged(); + } + }; + + public interface OnDateTimeChangedListener { + void onDateTimeChanged(DateTimePicker view, int year, int month, + int dayOfMonth, int hourOfDay, int minute); + } + + public DateTimePicker(Context context) { + this(context, System.currentTimeMillis()); + } + + public DateTimePicker(Context context, long date) { + this(context, date, DateFormat.is24HourFormat(context)); + } + + public DateTimePicker(Context context, long date, boolean is24HourView) { + super(context); + mDate = Calendar.getInstance(); + mInitialising = true; + mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY; + inflate(context, R.layout.datetime_picker, this); + + mDateSpinner = (NumberPicker) findViewById(R.id.date); + mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL); + mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL); + mDateSpinner.setOnValueChangedListener(mOnDateChangedListener); + + mHourSpinner = (NumberPicker) findViewById(R.id.hour); + mHourSpinner.setOnValueChangedListener(mOnHourChangedListener); + mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); + mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL); + mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL); + mMinuteSpinner.setOnLongPressUpdateInterval(100); + mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener); + + String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings(); + mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm); + mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL); + mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL); + mAmPmSpinner.setDisplayedValues(stringsForAmPm); + mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener); + + // update controls to initial state + updateDateControl(); + updateHourControl(); + updateAmPmControl(); + + set24HourView(is24HourView); + + // set to current time + setCurrentDate(date); + + setEnabled(isEnabled()); + + // set the content descriptions + mInitialising = false; + } + + @Override + public void setEnabled(boolean enabled) { + if (mIsEnabled == enabled) { + return; + } + super.setEnabled(enabled); + mDateSpinner.setEnabled(enabled); + mMinuteSpinner.setEnabled(enabled); + mHourSpinner.setEnabled(enabled); + mAmPmSpinner.setEnabled(enabled); + mIsEnabled = enabled; + } + + @Override + public boolean isEnabled() { + return mIsEnabled; + } + + /** + * Get the current date in millis + * + * @return the current date in millis + */ + public long getCurrentDateInTimeMillis() { + return mDate.getTimeInMillis(); + } + + /** + * Set the current date + * + * @param date The current date in millis + */ + public void setCurrentDate(long date) { + Calendar cal = Calendar.getInstance(); + cal.setTimeInMillis(date); + setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), + cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE)); + } + + /** + * Set the current date + * + * @param year The current year + * @param month The current month + * @param dayOfMonth The current dayOfMonth + * @param hourOfDay The current hourOfDay + * @param minute The current minute + */ + public void setCurrentDate(int year, int month, + int dayOfMonth, int hourOfDay, int minute) { + setCurrentYear(year); + setCurrentMonth(month); + setCurrentDay(dayOfMonth); + setCurrentHour(hourOfDay); + setCurrentMinute(minute); + } + + /** + * Get current year + * + * @return The current year + */ + public int getCurrentYear() { + return mDate.get(Calendar.YEAR); + } + + /** + * Set current year + * + * @param year The current year + */ + public void setCurrentYear(int year) { + if (!mInitialising && year == getCurrentYear()) { + return; + } + mDate.set(Calendar.YEAR, year); + updateDateControl(); + onDateTimeChanged(); + } + + /** + * Get current month in the year + * + * @return The current month in the year + */ + public int getCurrentMonth() { + return mDate.get(Calendar.MONTH); + } + + /** + * Set current month in the year + * + * @param month The month in the year + */ + public void setCurrentMonth(int month) { + if (!mInitialising && month == getCurrentMonth()) { + return; + } + mDate.set(Calendar.MONTH, month); + updateDateControl(); + onDateTimeChanged(); + } + + /** + * Get current day of the month + * + * @return The day of the month + */ + public int getCurrentDay() { + return mDate.get(Calendar.DAY_OF_MONTH); + } + + /** + * Set current day of the month + * + * @param dayOfMonth The day of the month + */ + public void setCurrentDay(int dayOfMonth) { + if (!mInitialising && dayOfMonth == getCurrentDay()) { + return; + } + mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); + updateDateControl(); + onDateTimeChanged(); + } + + /** + * Get current hour in 24 hour mode, in the range (0~23) + * @return The current hour in 24 hour mode + */ + public int getCurrentHourOfDay() { + return mDate.get(Calendar.HOUR_OF_DAY); + } + + private int getCurrentHour() { + if (mIs24HourView){ + return getCurrentHourOfDay(); + } else { + int hour = getCurrentHourOfDay(); + if (hour > HOURS_IN_HALF_DAY) { + return hour - HOURS_IN_HALF_DAY; + } else { + return hour == 0 ? HOURS_IN_HALF_DAY : hour; + } + } + } + + /** + * Set current hour in 24 hour mode, in the range (0~23) + * + * @param hourOfDay + */ + public void setCurrentHour(int hourOfDay) { + if (!mInitialising && hourOfDay == getCurrentHourOfDay()) { + return; + } + mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); + if (!mIs24HourView) { + if (hourOfDay >= HOURS_IN_HALF_DAY) { + mIsAm = false; + if (hourOfDay > HOURS_IN_HALF_DAY) { + hourOfDay -= HOURS_IN_HALF_DAY; + } + } else { + mIsAm = true; + if (hourOfDay == 0) { + hourOfDay = HOURS_IN_HALF_DAY; + } + } + updateAmPmControl(); + } + mHourSpinner.setValue(hourOfDay); + onDateTimeChanged(); + } + + /** + * Get currentMinute + * + * @return The Current Minute + */ + public int getCurrentMinute() { + return mDate.get(Calendar.MINUTE); + } + + /** + * Set current minute + */ + public void setCurrentMinute(int minute) { + if (!mInitialising && minute == getCurrentMinute()) { + return; + } + mMinuteSpinner.setValue(minute); + mDate.set(Calendar.MINUTE, minute); + onDateTimeChanged(); + } + + /** + * @return true if this is in 24 hour view else false. + */ + public boolean is24HourView () { + return mIs24HourView; + } + + /** + * Set whether in 24 hour or AM/PM mode. + * + * @param is24HourView True for 24 hour mode. False for AM/PM mode. + */ + public void set24HourView(boolean is24HourView) { + if (mIs24HourView == is24HourView) { + return; + } + mIs24HourView = is24HourView; + mAmPmSpinner.setVisibility(is24HourView ? View.GONE : View.VISIBLE); + int hour = getCurrentHourOfDay(); + updateHourControl(); + setCurrentHour(hour); + updateAmPmControl(); + } + + private void updateDateControl() { + Calendar cal = Calendar.getInstance(); + cal.setTimeInMillis(mDate.getTimeInMillis()); + cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1); + mDateSpinner.setDisplayedValues(null); + for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) { + cal.add(Calendar.DAY_OF_YEAR, 1); + mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal); + } + mDateSpinner.setDisplayedValues(mDateDisplayValues); + mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2); + mDateSpinner.invalidate(); + } + + private void updateAmPmControl() { + if (mIs24HourView) { + mAmPmSpinner.setVisibility(View.GONE); + } else { + int index = mIsAm ? Calendar.AM : Calendar.PM; + mAmPmSpinner.setValue(index); + mAmPmSpinner.setVisibility(View.VISIBLE); + } + } + + private void updateHourControl() { + if (mIs24HourView) { + mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW); + mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW); + } else { + mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW); + mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW); + } + } + + /** + * Set the callback that indicates the 'Set' button has been pressed. + * @param callback the callback, if null will do nothing + */ + public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) { + mOnDateTimeChangedListener = callback; + } + + private void onDateTimeChanged() { + if (mOnDateTimeChangedListener != null) { + mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(), + getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute()); + } + } +} diff --git a/src/ui/DateTimePickerDialog.java b/src/ui/DateTimePickerDialog.java new file mode 100644 index 0000000..2c47ba4 --- /dev/null +++ b/src/ui/DateTimePickerDialog.java @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.ui; + +import java.util.Calendar; + +import net.micode.notes.R; +import net.micode.notes.ui.DateTimePicker; +import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener; + +import android.app.AlertDialog; +import android.content.Context; +import android.content.DialogInterface; +import android.content.DialogInterface.OnClickListener; +import android.text.format.DateFormat; +import android.text.format.DateUtils; + +public class DateTimePickerDialog extends AlertDialog implements OnClickListener { + + private Calendar mDate = Calendar.getInstance(); + private boolean mIs24HourView; + private OnDateTimeSetListener mOnDateTimeSetListener; + private DateTimePicker mDateTimePicker; + + public interface OnDateTimeSetListener { + void OnDateTimeSet(AlertDialog dialog, long date); + } + + public DateTimePickerDialog(Context context, long date) { + super(context); + mDateTimePicker = new DateTimePicker(context); + setView(mDateTimePicker); + mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() { + public void onDateTimeChanged(DateTimePicker view, int year, int month, + int dayOfMonth, int hourOfDay, int minute) { + mDate.set(Calendar.YEAR, year); + mDate.set(Calendar.MONTH, month); + mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); + mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); + mDate.set(Calendar.MINUTE, minute); + updateTitle(mDate.getTimeInMillis()); + } + }); + mDate.setTimeInMillis(date); + mDate.set(Calendar.SECOND, 0); + mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); + setButton(context.getString(R.string.datetime_dialog_ok), this); + setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null); + set24HourView(DateFormat.is24HourFormat(this.getContext())); + updateTitle(mDate.getTimeInMillis()); + } + + public void set24HourView(boolean is24HourView) { + mIs24HourView = is24HourView; + } + + public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) { + mOnDateTimeSetListener = callBack; + } + + private void updateTitle(long date) { + int flag = + DateUtils.FORMAT_SHOW_YEAR | + DateUtils.FORMAT_SHOW_DATE | + DateUtils.FORMAT_SHOW_TIME; + flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR; + setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); + } + + public void onClick(DialogInterface arg0, int arg1) { + if (mOnDateTimeSetListener != null) { + mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); + } + } + +} \ No newline at end of file diff --git a/src/ui/DropdownMenu.java b/src/ui/DropdownMenu.java new file mode 100644 index 0000000..312c0d2 --- /dev/null +++ b/src/ui/DropdownMenu.java @@ -0,0 +1,85 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 代码定义了一个名为DropdownMenu的类，其主要功能是创建一个带有下拉菜单功能的组件。它基于安卓系统中的Button和PopupMenu来实现，将Button作为触发下拉菜单显示的入口，通过设置相关的监听器、加载菜单资源等操作，方便在安卓应用界面中构建出一个能展示多种操作选项（通过下拉菜单形式呈现）的交互组件，并且提供了查找菜单项、设置按钮标题等实用的方法，增强了该组件在实际使用中的灵活性和可定制性。 +函数分析 +构造函数 +DropdownMenu(Context context, Button button, int menuId)： +所属类：DropdownMenu +功能： +首先接收传入的Context（用于获取系统资源等操作）、Button（作为触发下拉菜单显示的按钮控件）以及menuId（用于指定要加载的菜单资源的ID）这三个参数。 +将传入的Button实例赋值给类内部的mButton变量，并通过setBackgroundResource方法为其设置背景资源（这里使用R.drawable.dropdown_icon指定的图标资源，应该是一个代表下拉箭头之类的图标，用于在视觉上提示用户该按钮可展开下拉菜单）。 +创建一个PopupMenu实例，将传入的Context和Button作为参数传入，使其与按钮关联起来，方便后续基于按钮位置来显示下拉菜单，然后获取这个PopupMenu的Menu对象并赋值给mMenu变量，用于后续操作菜单中的具体菜单项等。 +通过getMenuInflater方法获取菜单填充器，并调用inflate方法按照传入的menuId将对应的菜单资源加载到mMenu中，完成菜单内容的初始化。 +最后为mButton设置点击监听器，在监听器的onClick方法中，当按钮被点击时，调用mPopupMenu.show方法来显示关联的下拉菜单，实现点击按钮弹出下拉菜单的核心功能。 +设置监听器相关函数 +setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener)： +所属类：DropdownMenu +功能：接收一个实现了OnMenuItemClickListener接口的监听器对象作为参数，用于设置下拉菜单中菜单项被点击时的监听器。在函数内部，先判断mPopupMenu是否为null（避免空指针异常），如果不为null，则通过mPopupMenu.setOnMenuItemClickListener方法将传入的监听器设置给PopupMenu，这样当用户点击下拉菜单中的某个菜单项时，对应的监听器中的回调方法就会被触发，外部代码可以在回调方法中编写处理具体菜单项点击逻辑的代码，例如执行不同的操作、跳转到不同的界面等。 +查找菜单项函数 +findItem(int id)： +所属类：DropdownMenu +功能：接收一个表示菜单项ID的整数参数，通过调用mMenu.findItem方法在内部的Menu对象（之前在构造函数中加载了菜单资源的那个Menu）中查找对应的菜单项，返回找到的MenuItem对象。外部代码可以利用这个函数来获取特定ID的菜单项，进而对其进行一些操作，比如获取菜单项的文本、设置菜单项是否可用等，方便根据具体的业务需求对菜单项进行定制化处理。 +设置标题函数 +setTitle(CharSequence title)： +所属类：DropdownMenu +功能：接收一个CharSequence类型（通常可以是字符串等文本内容）的参数，用于设置关联的Button的文本标题。在函数内部，直接通过mButton.setText方法将传入的标题文本设置给按钮，改变按钮上显示的文字内容，从视觉上为用户提供更明确的提示信息，比如可以根据当前菜单的功能或者所在的页面内容等设置合适的按钮标题，增强界面的可读性和易用性。 + */ + +package net.micode.notes.ui; + +import android.content.Context; +import android.view.Menu; +import android.view.MenuItem; +import android.view.View; +import android.view.View.OnClickListener; +import android.widget.Button; +import android.widget.PopupMenu; +import android.widget.PopupMenu.OnMenuItemClickListener; + +import net.micode.notes.R; + +public class DropdownMenu { + private Button mButton; + private PopupMenu mPopupMenu; + private Menu mMenu; + + public DropdownMenu(Context context, Button button, int menuId) { + mButton = button; + mButton.setBackgroundResource(R.drawable.dropdown_icon); + mPopupMenu = new PopupMenu(context, mButton); + mMenu = mPopupMenu.getMenu(); + mPopupMenu.getMenuInflater().inflate(menuId, mMenu); + mButton.setOnClickListener(new OnClickListener() { + public void onClick(View v) { + mPopupMenu.show(); + } + }); + } + + public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) { + if (mPopupMenu != null) { + mPopupMenu.setOnMenuItemClickListener(listener); + } + } + + public MenuItem findItem(int id) { + return mMenu.findItem(id); + } + + public void setTitle(CharSequence title) { + mButton.setText(title); + } +} diff --git a/src/ui/FoldersListAdapter.java b/src/ui/FoldersListAdapter.java new file mode 100644 index 0000000..c5b6235 --- /dev/null +++ b/src/ui/FoldersListAdapter.java @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 代码定义了一个名为FoldersListAdapter的类，它继承自CursorAdapter，主要用于在安卓应用中对数据库查询结果（以Cursor形式体现）进行适配，以便在列表等视图组件中展示相应的数据。它针对特定的笔记相关数据结构（从代码中的引用可推测涉及笔记文件夹相关信息），将查询到的包含文件夹ID和名称片段（SNIPPET）的数据，通过自定义的视图逻辑展示出来，同时提供了获取指定位置文件夹名称的方法，方便在界面交互过程中获取和展示文件夹相关的信息。 +函数分析 +构造函数 +FoldersListAdapter(Context context, Cursor c)： +所属类：FoldersListAdapter +功能：这是类的构造函数，接收Context（用于获取系统资源等操作）和Cursor（包含了从数据库查询出来的数据）这两个参数，调用父类（CursorAdapter）的构造函数并传入这两个参数，完成基础的初始化工作，确保后续可以基于这个Cursor中的数据来进行视图适配等相关操作。不过目前构造函数内部暂时没有其他自定义的额外初始化逻辑（代码中 TODO Auto-generated constructor stub 提示可能后续还有待完善的地方）。 +视图创建相关函数 +newView(Context context, Cursor cursor, ViewGroup parent)： +所属类：FoldersListAdapter +功能：重写了父类CursorAdapter的newView方法，用于创建一个新的视图对象来展示Cursor中的每一条数据记录。在这个方法中，它创建并返回了一个FolderListItem类的实例，这个FolderListItem类是内部定义的一个继承自LinearLayout的自定义视图类，意味着每一条数据记录都会通过这个自定义的线性布局样式的视图来展示，后续可以在这个自定义视图中进行具体的数据绑定和展示相关操作。 +视图数据绑定函数 +bindView(View view, Context context, Cursor cursor)： +所属类：FoldersListAdapter +功能：重写了父类CursorAdapter的bindView方法，用于将Cursor中的数据绑定到对应的视图上进行展示。首先判断传入的视图是否是FolderListItem类型，如果是，则从Cursor中获取相应的数据来确定文件夹名称。这里有个特殊判断，如果当前记录对应的文件夹ID是根文件夹的ID（通过 Notes.ID_ROOT_FOLDER 判断），则使用 getString 方法获取一个特定的资源字符串（R.string.menu_move_parent_folder）作为文件夹名称，否则直接获取Cursor中对应列（通过 NAME_COLUMN 索引）的字符串作为文件夹名称，最后调用 ((FolderListItem) view).bind(folderName) 将获取到的文件夹名称传递给 FolderListItem 实例的 bind 方法，在该方法中会将名称设置到对应的 TextView 组件上进行展示。 +获取文件夹名称函数 +getFolderName(Context context, int position)： +所属类：FoldersListAdapter +功能：用于获取指定位置的文件夹名称。它先通过 getItem 方法（继承自 CursorAdapter）获取对应位置的 Cursor 对象，然后同样按照之前在 bindView 方法中类似的逻辑，根据文件夹 ID 是否为根文件夹 ID 来确定返回的文件夹名称，如果是根文件夹就获取特定资源字符串作为名称，否则获取 Cursor 中对应列的字符串作为名称，方便外部代码在需要知晓特定位置文件夹名称的情况下进行调用。 +自定义视图类相关 +FolderListItem 内部类： +所属类：FoldersListAdapter（作为其内部类存在） +功能： +构造函数方面，它继承自 LinearLayout，在构造函数中调用父类构造函数传入 Context，然后通过 inflate 方法加载一个名为 R.layout.folder_list_item 的布局文件到自身，这个布局文件应该定义了展示文件夹名称的具体视图样式，接着通过 findViewById 方法获取布局中的 TextView 组件（mName），用于后续设置和展示文件夹名称。 +bind 方法方面，接收一个字符串参数（文件夹名称），并通过 mName.setText(name) 将传入的名称设置到对应的 TextView 组件上，从而实现将数据展示在视图中的功能，完成视图与数据的绑定操作。 + */ + +package net.micode.notes.ui; + +import android.content.Context; +import android.database.Cursor; +import android.view.View; +import android.view.ViewGroup; +import android.widget.CursorAdapter; +import android.widget.LinearLayout; +import android.widget.TextView; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; + + +public class FoldersListAdapter extends CursorAdapter { + public static final String [] PROJECTION = { + NoteColumns.ID, + NoteColumns.SNIPPET + }; + + public static final int ID_COLUMN = 0; + public static final int NAME_COLUMN = 1; + + public FoldersListAdapter(Context context, Cursor c) { + super(context, c); + // TODO Auto-generated constructor stub + } + + @Override + public View newView(Context context, Cursor cursor, ViewGroup parent) { + return new FolderListItem(context); + } + + @Override + public void bindView(View view, Context context, Cursor cursor) { + if (view instanceof FolderListItem) { + String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context + .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); + ((FolderListItem) view).bind(folderName); + } + } + + public String getFolderName(Context context, int position) { + Cursor cursor = (Cursor) getItem(position); + return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context + .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); + } + + private class FolderListItem extends LinearLayout { + private TextView mName; + + public FolderListItem(Context context) { + super(context); + inflate(context, R.layout.folder_list_item, this); + mName = (TextView) findViewById(R.id.tv_folder_name); + } + + public void bind(String name) { + mName.setText(name); + } + } + +} diff --git a/src/ui/NoteEditActivity.java b/src/ui/NoteEditActivity.java new file mode 100644 index 0000000..96a9ff8 --- /dev/null +++ b/src/ui/NoteEditActivity.java @@ -0,0 +1,873 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.ui; + +import android.app.Activity; +import android.app.AlarmManager; +import android.app.AlertDialog; +import android.app.PendingIntent; +import android.app.SearchManager; +import android.appwidget.AppWidgetManager; +import android.content.ContentUris; +import android.content.Context; +import android.content.DialogInterface; +import android.content.Intent; +import android.content.SharedPreferences; +import android.graphics.Paint; +import android.os.Bundle; +import android.preference.PreferenceManager; +import android.text.Spannable; +import android.text.SpannableString; +import android.text.TextUtils; +import android.text.format.DateUtils; +import android.text.style.BackgroundColorSpan; +import android.util.Log; +import android.view.LayoutInflater; +import android.view.Menu; +import android.view.MenuItem; +import android.view.MotionEvent; +import android.view.View; +import android.view.View.OnClickListener; +import android.view.WindowManager; +import android.widget.CheckBox; +import android.widget.CompoundButton; +import android.widget.CompoundButton.OnCheckedChangeListener; +import android.widget.EditText; +import android.widget.ImageView; +import android.widget.LinearLayout; +import android.widget.TextView; +import android.widget.Toast; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.TextNote; +import net.micode.notes.model.WorkingNote; +import net.micode.notes.model.WorkingNote.NoteSettingChangedListener; +import net.micode.notes.tool.DataUtils; +import net.micode.notes.tool.ResourceParser; +import net.micode.notes.tool.ResourceParser.TextAppearanceResources; +import net.micode.notes.ui.DateTimePickerDialog.OnDateTimeSetListener; +import net.micode.notes.ui.NoteEditText.OnTextViewChangeListener; +import net.micode.notes.widget.NoteWidgetProvider_2x; +import net.micode.notes.widget.NoteWidgetProvider_4x; + +import java.util.HashMap; +import java.util.HashSet; +import java.util.Map; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + + +public class NoteEditActivity extends Activity implements OnClickListener, + NoteSettingChangedListener, OnTextViewChangeListener { + private class HeadViewHolder { + public TextView tvModified; + + public ImageView ivAlertIcon; + + public TextView tvAlertDate; + + public ImageView ibSetBgColor; + } + + private static final Map sBgSelectorBtnsMap = new HashMap(); + static { + sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW); + sBgSelectorBtnsMap.put(R.id.iv_bg_red, ResourceParser.RED); + sBgSelectorBtnsMap.put(R.id.iv_bg_blue, ResourceParser.BLUE); + sBgSelectorBtnsMap.put(R.id.iv_bg_green, ResourceParser.GREEN); + sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE); + } + + private static final Map sBgSelectorSelectionMap = new HashMap(); + static { + sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select); + sBgSelectorSelectionMap.put(ResourceParser.RED, R.id.iv_bg_red_select); + sBgSelectorSelectionMap.put(ResourceParser.BLUE, R.id.iv_bg_blue_select); + sBgSelectorSelectionMap.put(ResourceParser.GREEN, R.id.iv_bg_green_select); + sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select); + } + + private static final Map sFontSizeBtnsMap = new HashMap(); + static { + sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE); + sFontSizeBtnsMap.put(R.id.ll_font_small, ResourceParser.TEXT_SMALL); + sFontSizeBtnsMap.put(R.id.ll_font_normal, ResourceParser.TEXT_MEDIUM); + sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER); + } + + private static final Map sFontSelectorSelectionMap = new HashMap(); + static { + sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select); + sFontSelectorSelectionMap.put(ResourceParser.TEXT_SMALL, R.id.iv_small_select); + sFontSelectorSelectionMap.put(ResourceParser.TEXT_MEDIUM, R.id.iv_medium_select); + sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select); + } + + private static final String TAG = "NoteEditActivity"; + + private HeadViewHolder mNoteHeaderHolder; + + private View mHeadViewPanel; + + private View mNoteBgColorSelector; + + private View mFontSizeSelector; + + private EditText mNoteEditor; + + private View mNoteEditorPanel; + + private WorkingNote mWorkingNote; + + private SharedPreferences mSharedPrefs; + private int mFontSizeId; + + private static final String PREFERENCE_FONT_SIZE = "pref_font_size"; + + private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10; + + public static final String TAG_CHECKED = String.valueOf('\u221A'); + public static final String TAG_UNCHECKED = String.valueOf('\u25A1'); + + private LinearLayout mEditTextList; + + private String mUserQuery; + private Pattern mPattern; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + this.setContentView(R.layout.note_edit); + + if (savedInstanceState == null && !initActivityState(getIntent())) { + finish(); + return; + } + initResources(); + } + + /** + * Current activity may be killed when the memory is low. Once it is killed, for another time + * user load this activity, we should restore the former state + */ + @Override + protected void onRestoreInstanceState(Bundle savedInstanceState) { + super.onRestoreInstanceState(savedInstanceState); + if (savedInstanceState != null && savedInstanceState.containsKey(Intent.EXTRA_UID)) { + Intent intent = new Intent(Intent.ACTION_VIEW); + intent.putExtra(Intent.EXTRA_UID, savedInstanceState.getLong(Intent.EXTRA_UID)); + if (!initActivityState(intent)) { + finish(); + return; + } + Log.d(TAG, "Restoring from killed activity"); + } + } + + private boolean initActivityState(Intent intent) { + /** + * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id, + * then jump to the NotesListActivity + */ + mWorkingNote = null; + if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) { + long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0); + mUserQuery = ""; + + /** + * Starting from the searched result + */ + if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) { + noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY)); + mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY); + } + + if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) { + Intent jump = new Intent(this, NotesListActivity.class); + startActivity(jump); + showToast(R.string.error_note_not_exist); + finish(); + return false; + } else { + mWorkingNote = WorkingNote.load(this, noteId); + if (mWorkingNote == null) { + Log.e(TAG, "load note failed with note id" + noteId); + finish(); + return false; + } + } + getWindow().setSoftInputMode( + WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN + | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); + } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) { + // New note + long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0); + int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID, + AppWidgetManager.INVALID_APPWIDGET_ID); + int widgetType = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, + Notes.TYPE_WIDGET_INVALIDE); + int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, + ResourceParser.getDefaultBgId(this)); + + // Parse call-record note + String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER); + long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0); + if (callDate != 0 && phoneNumber != null) { + if (TextUtils.isEmpty(phoneNumber)) { + Log.w(TAG, "The call record number is null"); + } + long noteId = 0; + if ((noteId = DataUtils.getNoteIdByPhoneNumberAndCallDate(getContentResolver(), + phoneNumber, callDate)) > 0) { + mWorkingNote = WorkingNote.load(this, noteId); + if (mWorkingNote == null) { + Log.e(TAG, "load call note failed with note id" + noteId); + finish(); + return false; + } + } else { + mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, + widgetType, bgResId); + mWorkingNote.convertToCallNote(phoneNumber, callDate); + } + } else { + mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, + bgResId); + } + + getWindow().setSoftInputMode( + WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE + | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE); + } else { + Log.e(TAG, "Intent not specified action, should not support"); + finish(); + return false; + } + mWorkingNote.setOnSettingStatusChangedListener(this); + return true; + } + + @Override + protected void onResume() { + super.onResume(); + initNoteScreen(); + } + + private void initNoteScreen() { + mNoteEditor.setTextAppearance(this, TextAppearanceResources + .getTexAppearanceResource(mFontSizeId)); + if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + switchToListMode(mWorkingNote.getContent()); + } else { + mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); + mNoteEditor.setSelection(mNoteEditor.getText().length()); + } + for (Integer id : sBgSelectorSelectionMap.keySet()) { + findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE); + } + mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); + mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); + + mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this, + mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE + | DateUtils.FORMAT_NUMERIC_DATE | DateUtils.FORMAT_SHOW_TIME + | DateUtils.FORMAT_SHOW_YEAR)); + + /** + * TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker + * is not ready + */ + showAlertHeader(); + } + + private void showAlertHeader() { + if (mWorkingNote.hasClockAlert()) { + long time = System.currentTimeMillis(); + if (time > mWorkingNote.getAlertDate()) { + mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired); + } else { + mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString( + mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS)); + } + mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE); + mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE); + } else { + mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE); + mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE); + }; + } + + @Override + protected void onNewIntent(Intent intent) { + super.onNewIntent(intent); + initActivityState(intent); + } + + @Override + protected void onSaveInstanceState(Bundle outState) { + super.onSaveInstanceState(outState); + /** + * For new note without note id, we should firstly save it to + * generate a id. If the editing note is not worth saving, there + * is no id which is equivalent to create new note + */ + if (!mWorkingNote.existInDatabase()) { + saveNote(); + } + outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId()); + Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState"); + } + + @Override + public boolean dispatchTouchEvent(MotionEvent ev) { + if (mNoteBgColorSelector.getVisibility() == View.VISIBLE + && !inRangeOfView(mNoteBgColorSelector, ev)) { + mNoteBgColorSelector.setVisibility(View.GONE); + return true; + } + + if (mFontSizeSelector.getVisibility() == View.VISIBLE + && !inRangeOfView(mFontSizeSelector, ev)) { + mFontSizeSelector.setVisibility(View.GONE); + return true; + } + return super.dispatchTouchEvent(ev); + } + + private boolean inRangeOfView(View view, MotionEvent ev) { + int []location = new int[2]; + view.getLocationOnScreen(location); + int x = location[0]; + int y = location[1]; + if (ev.getX() < x + || ev.getX() > (x + view.getWidth()) + || ev.getY() < y + || ev.getY() > (y + view.getHeight())) { + return false; + } + return true; + } + + private void initResources() { + mHeadViewPanel = findViewById(R.id.note_title); + mNoteHeaderHolder = new HeadViewHolder(); + mNoteHeaderHolder.tvModified = (TextView) findViewById(R.id.tv_modified_date); + mNoteHeaderHolder.ivAlertIcon = (ImageView) findViewById(R.id.iv_alert_icon); + mNoteHeaderHolder.tvAlertDate = (TextView) findViewById(R.id.tv_alert_date); + mNoteHeaderHolder.ibSetBgColor = (ImageView) findViewById(R.id.btn_set_bg_color); + mNoteHeaderHolder.ibSetBgColor.setOnClickListener(this); + mNoteEditor = (EditText) findViewById(R.id.note_edit_view); + mNoteEditorPanel = findViewById(R.id.sv_note_edit); + mNoteBgColorSelector = findViewById(R.id.note_bg_color_selector); + for (int id : sBgSelectorBtnsMap.keySet()) { + ImageView iv = (ImageView) findViewById(id); + iv.setOnClickListener(this); + } + + mFontSizeSelector = findViewById(R.id.font_size_selector); + for (int id : sFontSizeBtnsMap.keySet()) { + View view = findViewById(id); + view.setOnClickListener(this); + }; + mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this); + mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE); + /** + * HACKME: Fix bug of store the resource id in shared preference. + * The id may larger than the length of resources, in this case, + * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE} + */ + if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) { + mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE; + } + mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list); + } + + @Override + protected void onPause() { + super.onPause(); + if(saveNote()) { + Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length()); + } + clearSettingState(); + } + + private void updateWidget() { + Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); + if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) { + intent.setClass(this, NoteWidgetProvider_2x.class); + } else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_4X) { + intent.setClass(this, NoteWidgetProvider_4x.class); + } else { + Log.e(TAG, "Unspported widget type"); + return; + } + + intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { + mWorkingNote.getWidgetId() + }); + + sendBroadcast(intent); + setResult(RESULT_OK, intent); + } + + public void onClick(View v) { + int id = v.getId(); + if (id == R.id.btn_set_bg_color) { + mNoteBgColorSelector.setVisibility(View.VISIBLE); + findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( + - View.VISIBLE); + } else if (sBgSelectorBtnsMap.containsKey(id)) { + findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( + View.GONE); + mWorkingNote.setBgColorId(sBgSelectorBtnsMap.get(id)); + mNoteBgColorSelector.setVisibility(View.GONE); + } else if (sFontSizeBtnsMap.containsKey(id)) { + findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.GONE); + mFontSizeId = sFontSizeBtnsMap.get(id); + mSharedPrefs.edit().putInt(PREFERENCE_FONT_SIZE, mFontSizeId).commit(); + findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); + if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + getWorkingText(); + switchToListMode(mWorkingNote.getContent()); + } else { + mNoteEditor.setTextAppearance(this, + TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); + } + mFontSizeSelector.setVisibility(View.GONE); + } + } + + @Override + public void onBackPressed() { + if(clearSettingState()) { + return; + } + + saveNote(); + super.onBackPressed(); + } + + private boolean clearSettingState() { + if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) { + mNoteBgColorSelector.setVisibility(View.GONE); + return true; + } else if (mFontSizeSelector.getVisibility() == View.VISIBLE) { + mFontSizeSelector.setVisibility(View.GONE); + return true; + } + return false; + } + + public void onBackgroundColorChanged() { + findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( + View.VISIBLE); + mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); + mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); + } + + @Override + public boolean onPrepareOptionsMenu(Menu menu) { + if (isFinishing()) { + return true; + } + clearSettingState(); + menu.clear(); + if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) { + getMenuInflater().inflate(R.menu.call_note_edit, menu); + } else { + getMenuInflater().inflate(R.menu.note_edit, menu); + } + if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_normal_mode); + } else { + menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_list_mode); + } + if (mWorkingNote.hasClockAlert()) { + menu.findItem(R.id.menu_alert).setVisible(false); + } else { + menu.findItem(R.id.menu_delete_remind).setVisible(false); + } + return true; + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + switch (item.getItemId()) { + case R.id.menu_new_note: + createNewNote(); + break; + case R.id.menu_delete: + AlertDialog.Builder builder = new AlertDialog.Builder(this); + builder.setTitle(getString(R.string.alert_title_delete)); + builder.setIcon(android.R.drawable.ic_dialog_alert); + builder.setMessage(getString(R.string.alert_message_delete_note)); + builder.setPositiveButton(android.R.string.ok, + new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int which) { + deleteCurrentNote(); + finish(); + } + }); + builder.setNegativeButton(android.R.string.cancel, null); + builder.show(); + break; + case R.id.menu_font_size: + mFontSizeSelector.setVisibility(View.VISIBLE); + findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); + break; + case R.id.menu_list_mode: + mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ? + TextNote.MODE_CHECK_LIST : 0); + break; + case R.id.menu_share: + getWorkingText(); + sendTo(this, mWorkingNote.getContent()); + break; + case R.id.menu_send_to_desktop: + sendToDesktop(); + break; + case R.id.menu_alert: + setReminder(); + break; + case R.id.menu_delete_remind: + mWorkingNote.setAlertDate(0, false); + break; + default: + break; + } + return true; + } + + private void setReminder() { + DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis()); + d.setOnDateTimeSetListener(new OnDateTimeSetListener() { + public void OnDateTimeSet(AlertDialog dialog, long date) { + mWorkingNote.setAlertDate(date , true); + } + }); + d.show(); + } + + /** + * Share note to apps that support {@link Intent#ACTION_SEND} action + * and {@text/plain} type + */ + private void sendTo(Context context, String info) { + Intent intent = new Intent(Intent.ACTION_SEND); + intent.putExtra(Intent.EXTRA_TEXT, info); + intent.setType("text/plain"); + context.startActivity(intent); + } + + private void createNewNote() { + // Firstly, save current editing notes + saveNote(); + + // For safety, start a new NoteEditActivity + finish(); + Intent intent = new Intent(this, NoteEditActivity.class); + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId()); + startActivity(intent); + } + + private void deleteCurrentNote() { + if (mWorkingNote.existInDatabase()) { + HashSet ids = new HashSet(); + long id = mWorkingNote.getNoteId(); + if (id != Notes.ID_ROOT_FOLDER) { + ids.add(id); + } else { + Log.d(TAG, "Wrong note id, should not happen"); + } + if (!isSyncMode()) { + if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) { + Log.e(TAG, "Delete Note error"); + } + } else { + if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) { + Log.e(TAG, "Move notes to trash folder error, should not happens"); + } + } + } + mWorkingNote.markDeleted(true); + } + + private boolean isSyncMode() { + return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; + } + + public void onClockAlertChanged(long date, boolean set) { + /** + * User could set clock to an unsaved note, so before setting the + * alert clock, we should save the note first + */ + if (!mWorkingNote.existInDatabase()) { + saveNote(); + } + if (mWorkingNote.getNoteId() > 0) { + Intent intent = new Intent(this, AlarmReceiver.class); + intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId())); + PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0); + AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE)); + showAlertHeader(); + if(!set) { + alarmManager.cancel(pendingIntent); + } else { + alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent); + } + } else { + /** + * There is the condition that user has input nothing (the note is + * not worthy saving), we have no note id, remind the user that he + * should input something + */ + Log.e(TAG, "Clock alert setting error"); + showToast(R.string.error_note_empty_for_clock); + } + } + + public void onWidgetChanged() { + updateWidget(); + } + + public void onEditTextDelete(int index, String text) { + int childCount = mEditTextList.getChildCount(); + if (childCount == 1) { + return; + } + + for (int i = index + 1; i < childCount; i++) { + ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) + .setIndex(i - 1); + } + + mEditTextList.removeViewAt(index); + NoteEditText edit = null; + if(index == 0) { + edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById( + R.id.et_edit_text); + } else { + edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById( + R.id.et_edit_text); + } + int length = edit.length(); + edit.append(text); + edit.requestFocus(); + edit.setSelection(length); + } + + public void onEditTextEnter(int index, String text) { + /** + * Should not happen, check for debug + */ + if(index > mEditTextList.getChildCount()) { + Log.e(TAG, "Index out of mEditTextList boundrary, should not happen"); + } + + View view = getListItem(text, index); + mEditTextList.addView(view, index); + NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); + edit.requestFocus(); + edit.setSelection(0); + for (int i = index + 1; i < mEditTextList.getChildCount(); i++) { + ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) + .setIndex(i); + } + } + + private void switchToListMode(String text) { + mEditTextList.removeAllViews(); + String[] items = text.split("\n"); + int index = 0; + for (String item : items) { + if(!TextUtils.isEmpty(item)) { + mEditTextList.addView(getListItem(item, index)); + index++; + } + } + mEditTextList.addView(getListItem("", index)); + mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus(); + + mNoteEditor.setVisibility(View.GONE); + mEditTextList.setVisibility(View.VISIBLE); + } + + private Spannable getHighlightQueryResult(String fullText, String userQuery) { + SpannableString spannable = new SpannableString(fullText == null ? "" : fullText); + if (!TextUtils.isEmpty(userQuery)) { + mPattern = Pattern.compile(userQuery); + Matcher m = mPattern.matcher(fullText); + int start = 0; + while (m.find(start)) { + spannable.setSpan( + new BackgroundColorSpan(this.getResources().getColor( + R.color.user_query_highlight)), m.start(), m.end(), + Spannable.SPAN_INCLUSIVE_EXCLUSIVE); + start = m.end(); + } + } + return spannable; + } + + private View getListItem(String item, int index) { + View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null); + final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); + edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); + CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item)); + cb.setOnCheckedChangeListener(new OnCheckedChangeListener() { + public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { + if (isChecked) { + edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG); + } else { + edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); + } + } + }); + + if (item.startsWith(TAG_CHECKED)) { + cb.setChecked(true); + edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG); + item = item.substring(TAG_CHECKED.length(), item.length()).trim(); + } else if (item.startsWith(TAG_UNCHECKED)) { + cb.setChecked(false); + edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); + item = item.substring(TAG_UNCHECKED.length(), item.length()).trim(); + } + + edit.setOnTextViewChangeListener(this); + edit.setIndex(index); + edit.setText(getHighlightQueryResult(item, mUserQuery)); + return view; + } + + public void onTextChange(int index, boolean hasText) { + if (index >= mEditTextList.getChildCount()) { + Log.e(TAG, "Wrong index, should not happen"); + return; + } + if(hasText) { + mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE); + } else { + mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.GONE); + } + } + + public void onCheckListModeChanged(int oldMode, int newMode) { + if (newMode == TextNote.MODE_CHECK_LIST) { + switchToListMode(mNoteEditor.getText().toString()); + } else { + if (!getWorkingText()) { + mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ", + "")); + } + mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); + mEditTextList.setVisibility(View.GONE); + mNoteEditor.setVisibility(View.VISIBLE); + } + } + + private boolean getWorkingText() { + boolean hasChecked = false; + if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + StringBuilder sb = new StringBuilder(); + for (int i = 0; i < mEditTextList.getChildCount(); i++) { + View view = mEditTextList.getChildAt(i); + NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); + if (!TextUtils.isEmpty(edit.getText())) { + if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) { + sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n"); + hasChecked = true; + } else { + sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n"); + } + } + } + mWorkingNote.setWorkingText(sb.toString()); + } else { + mWorkingNote.setWorkingText(mNoteEditor.getText().toString()); + } + return hasChecked; + } + + private boolean saveNote() { + getWorkingText(); + boolean saved = mWorkingNote.saveNote(); + if (saved) { + /** + * There are two modes from List view to edit view, open one note, + * create/edit a node. Opening node requires to the original + * position in the list when back from edit view, while creating a + * new node requires to the top of the list. This code + * {@link #RESULT_OK} is used to identify the create/edit state + */ + setResult(RESULT_OK); + } + return saved; + } + + private void sendToDesktop() { + /** + * Before send message to home, we should make sure that current + * editing note is exists in databases. So, for new note, firstly + * save it + */ + if (!mWorkingNote.existInDatabase()) { + saveNote(); + } + + if (mWorkingNote.getNoteId() > 0) { + Intent sender = new Intent(); + Intent shortcutIntent = new Intent(this, NoteEditActivity.class); + shortcutIntent.setAction(Intent.ACTION_VIEW); + shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId()); + sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); + sender.putExtra(Intent.EXTRA_SHORTCUT_NAME, + makeShortcutIconTitle(mWorkingNote.getContent())); + sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, + Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app)); + sender.putExtra("duplicate", true); + sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT"); + showToast(R.string.info_note_enter_desktop); + sendBroadcast(sender); + } else { + /** + * There is the condition that user has input nothing (the note is + * not worthy saving), we have no note id, remind the user that he + * should input something + */ + Log.e(TAG, "Send to desktop error"); + showToast(R.string.error_note_empty_for_send_to_desktop); + } + } + + private String makeShortcutIconTitle(String content) { + content = content.replace(TAG_CHECKED, ""); + content = content.replace(TAG_UNCHECKED, ""); + return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0, + SHORTCUT_ICON_TITLE_MAX_LEN) : content; + } + + private void showToast(int resId) { + showToast(resId, Toast.LENGTH_SHORT); + } + + private void showToast(int resId, int duration) { + Toast.makeText(this, resId, duration).show(); + } +} diff --git a/src/ui/NoteEditText.java b/src/ui/NoteEditText.java new file mode 100644 index 0000000..4710353 --- /dev/null +++ b/src/ui/NoteEditText.java @@ -0,0 +1,268 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 代码定义了一个名为NoteEditText的自定义EditText类，它在继承安卓原生EditText的基础上，添加了诸多针对特定业务需求的功能逻辑。主要用于处理文本编辑过程中的一些交互操作，比如按键按下与抬起时的逻辑（像删除、回车键按下等情况）、触摸事件处理、焦点变化处理以及上下文菜单创建等，同时定义了一个接口用于和外部代码进行交互，通知外部文本编辑相关的状态变化情况，整体旨在为笔记编辑等类似场景下的文本输入操作提供更贴合业务需求的交互功能。 +函数分析 +构造函数相关 +NoteEditText(Context context)、NoteEditText(Context context, AttributeSet attrs)、NoteEditText(Context context, AttributeSet attrs, int defStyle)： +所属类：NoteEditText +功能： +第一个构造函数只接收Context参数，调用父类（EditText）构造函数并传入Context和null，同时初始化成员变量mIndex为0，用于记录当前文本编辑框的某种索引（可能与多个编辑框排序等相关）。 +第二个构造函数接收Context和AttributeSet参数，调用父类构造函数并传入Context、AttributeSet以及指定的编辑框样式（android.R.attr.editTextStyle），用于按照传入的属性集合和默认样式来初始化编辑框。 +第三个构造函数接收Context、AttributeSet和defStyle参数，调用父类构造函数传入对应参数进行初始化，不过其内部暂时没有额外自定义的初始化逻辑（代码中 TODO Auto-generated constructor stub 提示后续可能还有完善的地方）。 +触摸事件处理函数 +onTouchEvent(MotionEvent event)： +所属类：NoteEditText +功能：重写了父类的onTouchEvent方法来处理触摸操作相关逻辑。当触摸事件的动作是ACTION_DOWN（手指按下屏幕）时： +首先获取触摸点相对于编辑框内部的坐标（通过减去总内边距并加上滚动偏移量等计算），然后根据触摸点的垂直坐标获取所在的文本行，再根据水平坐标获取该行对应的文本偏移量，最后通过Selection.setSelection方法将文本选中位置设置为该偏移量对应的位置，实现触摸选中文本的功能，使得用户触摸文本区域时能方便地定位和选中相应文本内容，符合常见的文本编辑交互习惯。 +最后返回调用父类onTouchEvent方法的结果，保证其他未处理的触摸相关逻辑能按照原生EditText的行为继续执行。 +按键按下处理函数 +onKeyDown(int keyCode, KeyEvent event)： +所属类：NoteEditText +功能：重写了父类的onKeyDown方法来处理按键按下的相关逻辑。根据按下的不同按键码（keyCode）进行不同操作： +当按下的是回车键（KEYCODE_ENTER）时，如果设置了OnTextViewChangeListener监听器（用于和外部代码交互通知文本编辑状态变化的接口），则直接返回false，这可能是为了后续在onKeyUp方法中统一处理回车键抬起的逻辑或者让外部代码有更多控制权决定回车键按下后的具体行为（比如是否添加新的编辑文本等）。 +当按下的是删除键（KEYCODE_DEL）时，记录当前文本选中位置的起始点（通过getSelectionStart方法获取并赋值给mSelectionStartBeforeDelete变量），用于后续在删除键抬起时判断是否满足特定的删除文本逻辑，比如是否删除当前编辑框的全部文本等情况。 +对于其他按键按下情况，则不做额外自定义处理，直接执行父类的onKeyDown方法逻辑。 +按键抬起处理函数 +onKeyUp(int keyCode, KeyEvent event)： +所属类：NoteEditText +功能：重写了父类的onKeyUp方法来处理按键抬起的相关逻辑。根据抬起的不同按键码（keyCode）进行不同操作： +当按键码是删除键（KEYCODE_DEL）时，如果设置了OnTextViewChangeListener监听器，会进一步判断，如果当前文本选中位置起始点为0且当前编辑框的索引（mIndex）不为0，则调用监听器的onEditTextDelete方法并传入当前编辑框索引以及编辑框内的文本内容（通过getText方法获取并转换为字符串），通知外部代码当前编辑框文本被删除的情况，最后返回true表示该按键抬起事件已被处理，避免父类重复处理。若没有设置监听器，则打印日志提示监听器未设置。 +当按键码是回车键（KEYCODE_ENTER）时，如果设置了OnTextViewChangeListener监听器，先获取当前文本选中位置的起始点，然后截取从该起始点到文本末尾的内容作为新文本，将编辑框内文本设置为从开头到选中起始点的内容（相当于模拟了在选中位置插入新文本的操作），接着调用监听器的onEditTextEnter方法并传入当前编辑框索引加1（可能表示下一个编辑框的索引）以及新文本内容，通知外部代码回车键按下后添加新文本的情况，若没有设置监听器同样打印日志提示监听器未设置。 +对于其他按键抬起情况，则执行父类的onKeyUp方法逻辑。 +焦点变化处理函数 +onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect)： +所属类：NoteEditText +功能：重写了父类的方法来处理编辑框焦点变化的相关逻辑。当焦点发生变化时，如果设置了OnTextViewChangeListener监听器，会进一步判断： +如果编辑框失去焦点（focused为false）并且编辑框内文本为空（通过TextUtils.isEmpty方法判断），则调用监听器的onTextChange方法并传入当前编辑框索引以及false，通知外部代码当前编辑框文本为空且失去焦点的情况，外部代码可以据此隐藏一些相关的操作选项等。 +如果编辑框获得焦点或者虽然失去焦点但文本不为空，则调用监听器的onTextChange方法并传入当前编辑框索引以及true，通知外部代码编辑框文本状态变化情况，外部代码可以据此显示相关操作选项等。 +最后无论哪种情况，都会调用父类的onFocusChanged方法保证原生的焦点变化相关逻辑继续执行，比如可能涉及界面重绘等其他系统行为。 +上下文菜单创建函数 +onCreateContextMenu(ContextMenu menu)： +所属类：NoteEditText +功能：重写了父类的方法来创建上下文菜单（通常通过长按文本编辑框等操作触发）。在函数内部： +首先判断编辑框内的文本是否是实现了Spanned接口的类型（意味着文本可能包含了一些样式、链接等特殊内容），如果是，则获取当前文本选中区域的起始和结束位置，确定最小和最大位置。 +通过getSpans方法从文本中获取位于选中区域内的URLSpan类型的对象数组（URLSpan用于表示文本中的链接），如果数组长度为1（即只选中了一个链接），则遍历预定义的链接协议与对应资源ID的映射表（sSchemaActionResMap），查找该链接的协议（通过getURL方法获取链接字符串并判断其开头协议部分）对应的资源ID，如果找到则使用对应的ID，如果没找到则使用默认的ID（R.string.note_link_other）。 +使用找到的资源ID通过menu.add方法在上下文菜单中添加一个菜单项，并为该菜单项设置点击监听器，在监听器的onMenuItemClick方法中，调用对应的URLSpan对象的onClick方法（通常会触发打开链接对应的页面等操作），实现长按链接弹出对应操作选项并点击执行相应操作的功能，最后调用父类的onCreateContextMenu方法保证原生的上下文菜单创建相关逻辑继续执行，比如添加系统默认的一些菜单选项等。 +接口相关方法 +setIndex(int index)： +所属类：NoteEditText +功能：用于设置当前编辑框的索引值（mIndex），接收一个整数参数，将其赋值给mIndex变量，外部代码可以通过这个方法来明确当前编辑框在一组编辑框中的顺序等信息，便于后续根据索引进行相关逻辑处理，比如判断是否是第一个编辑框等情况。 +setOnTextViewChangeListener(OnTextViewChangeListener listener)： +所属类：NoteEditText +功能：用于设置OnTextViewChangeListener监听器，接收一个实现了该接口的对象作为参数，将其赋值给mOnTextViewChangeListener变量，外部代码通过实现该接口并传入对应的监听器对象，就可以在文本编辑框发生文本删除、回车键按下、文本状态变化等情况时接收到通知并执行相应的业务逻辑，增强了该自定义编辑框与外部代码之间的交互性。 + */ + +package net.micode.notes.ui; + +import android.content.Context; +import android.graphics.Rect; +import android.text.Layout; +import android.text.Selection; +import android.text.Spanned; +import android.text.TextUtils; +import android.text.style.URLSpan; +import android.util.AttributeSet; +import android.util.Log; +import android.view.ContextMenu; +import android.view.KeyEvent; +import android.view.MenuItem; +import android.view.MenuItem.OnMenuItemClickListener; +import android.view.MotionEvent; +import android.widget.EditText; + +import net.micode.notes.R; + +import java.util.HashMap; +import java.util.Map; + +public class NoteEditText extends EditText { + private static final String TAG = "NoteEditText"; + private int mIndex; + private int mSelectionStartBeforeDelete; + + private static final String SCHEME_TEL = "tel:" ; + private static final String SCHEME_HTTP = "http:" ; + private static final String SCHEME_EMAIL = "mailto:" ; + + private static final Map sSchemaActionResMap = new HashMap(); + static { + sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel); + sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web); + sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email); + } + + /** + * Call by the {@link NoteEditActivity} to delete or add edit text + */ + public interface OnTextViewChangeListener { + /** + * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens + * and the text is null + */ + void onEditTextDelete(int index, String text); + + /** + * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER} + * happen + */ + void onEditTextEnter(int index, String text); + + /** + * Hide or show item option when text change + */ + void onTextChange(int index, boolean hasText); + } + + private OnTextViewChangeListener mOnTextViewChangeListener; + + public NoteEditText(Context context) { + super(context, null); + mIndex = 0; + } + + public void setIndex(int index) { + mIndex = index; + } + + public void setOnTextViewChangeListener(OnTextViewChangeListener listener) { + mOnTextViewChangeListener = listener; + } + + public NoteEditText(Context context, AttributeSet attrs) { + super(context, attrs, android.R.attr.editTextStyle); + } + + public NoteEditText(Context context, AttributeSet attrs, int defStyle) { + super(context, attrs, defStyle); + // TODO Auto-generated constructor stub + } + + @Override + public boolean onTouchEvent(MotionEvent event) { + switch (event.getAction()) { + case MotionEvent.ACTION_DOWN: + + int x = (int) event.getX(); + int y = (int) event.getY(); + x -= getTotalPaddingLeft(); + y -= getTotalPaddingTop(); + x += getScrollX(); + y += getScrollY(); + + Layout layout = getLayout(); + int line = layout.getLineForVertical(y); + int off = layout.getOffsetForHorizontal(line, x); + Selection.setSelection(getText(), off); + break; + } + + return super.onTouchEvent(event); + } + + @Override + public boolean onKeyDown(int keyCode, KeyEvent event) { + switch (keyCode) { + case KeyEvent.KEYCODE_ENTER: + if (mOnTextViewChangeListener != null) { + return false; + } + break; + case KeyEvent.KEYCODE_DEL: + mSelectionStartBeforeDelete = getSelectionStart(); + break; + default: + break; + } + return super.onKeyDown(keyCode, event); + } + + @Override + public boolean onKeyUp(int keyCode, KeyEvent event) { + switch(keyCode) { + case KeyEvent.KEYCODE_DEL: + if (mOnTextViewChangeListener != null) { + if (0 == mSelectionStartBeforeDelete && mIndex != 0) { + mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString()); + return true; + } + } else { + Log.d(TAG, "OnTextViewChangeListener was not seted"); + } + break; + case KeyEvent.KEYCODE_ENTER: + if (mOnTextViewChangeListener != null) { + int selectionStart = getSelectionStart(); + String text = getText().subSequence(selectionStart, length()).toString(); + setText(getText().subSequence(0, selectionStart)); + mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text); + } else { + Log.d(TAG, "OnTextViewChangeListener was not seted"); + } + break; + default: + break; + } + return super.onKeyUp(keyCode, event); + } + + @Override + protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { + if (mOnTextViewChangeListener != null) { + if (!focused && TextUtils.isEmpty(getText())) { + mOnTextViewChangeListener.onTextChange(mIndex, false); + } else { + mOnTextViewChangeListener.onTextChange(mIndex, true); + } + } + super.onFocusChanged(focused, direction, previouslyFocusedRect); + } + + @Override + protected void onCreateContextMenu(ContextMenu menu) { + if (getText() instanceof Spanned) { + int selStart = getSelectionStart(); + int selEnd = getSelectionEnd(); + + int min = Math.min(selStart, selEnd); + int max = Math.max(selStart, selEnd); + + final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class); + if (urls.length == 1) { + int defaultResId = 0; + for(String schema: sSchemaActionResMap.keySet()) { + if(urls[0].getURL().indexOf(schema) >= 0) { + defaultResId = sSchemaActionResMap.get(schema); + break; + } + } + + if (defaultResId == 0) { + defaultResId = R.string.note_link_other; + } + + menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener( + new OnMenuItemClickListener() { + public boolean onMenuItemClick(MenuItem item) { + // goto a new intent + urls[0].onClick(NoteEditText.this); + return true; + } + }); + } + } + super.onCreateContextMenu(menu); + } +} diff --git a/src/ui/NoteItemData.java b/src/ui/NoteItemData.java new file mode 100644 index 0000000..4e474f2 --- /dev/null +++ b/src/ui/NoteItemData.java @@ -0,0 +1,264 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 代码定义了NoteItemData类，主要用于对从数据库查询获取的笔记相关数据（通过Cursor传递）进行解析和封装，提取出如笔记ID、提醒日期、背景颜色ID等各种具体的信息，并根据数据情况判断笔记在列表中的位置关系（是否是首个、最后一个、唯一的等）以及是否跟随文件夹等特殊情况，同时向外提供了一系列获取这些封装好的数据和状态判断结果的方法，方便在展示笔记相关列表或者进行其他与笔记数据交互的场景中使用。 +函数分析 +构造函数 +NoteItemData(Context context, Cursor cursor)： +所属类：NoteItemData +功能： +从传入的Cursor中按照预定义的列索引（如ID_COLUMN等常量对应各字段位置）提取笔记各项数据，比如通过cursor.getLong、cursor.getInt、cursor.getString等方法分别获取对应类型的数据，并赋值给类中的成员变量（如mId、mBgColorId、mSnippet等），以此完成基础的数据解析和封装。 +针对笔记内容片段（mSnippet），会进行一些字符串替换操作（去掉特定的标记，像NoteEditActivity.TAG_CHECKED和NoteEditActivity.TAG_UNCHECKED）。 +当笔记的父ID是通话记录文件夹的ID（Notes.ID_CALL_RECORD_FOLDER）时，通过DataUtils.getCallNumberByNoteId方法尝试获取电话号码，若电话号码不为空，则利用Contact.getContact方法根据电话号码获取联系人姓名，若获取失败则将电话号码作为姓名，若电话号码本身为空则将姓名设为空字符串，完成与联系人相关信息的处理。 +最后调用checkPostion方法，根据Cursor的相关状态（如是否是首条、末条记录等）以及笔记类型等情况，判断笔记在列表中的位置相关属性（如是否是最后一个、第一个、唯一的，是否跟随文件夹等情况）并设置对应的成员变量（mIsLastItem、mIsFirstItem等）。 +位置判断相关函数 +checkPostion(Cursor cursor)： +所属类：NoteItemData +功能： +首先判断Cursor当前是否处于最后一条记录，将结果赋值给mIsLastItem；判断是否处于第一条记录，赋值给mIsFirstItem；判断记录总数是否为1，来确定是否只有一个笔记项，赋值给mIsOnlyOneItem，并初始化mIsMultiNotesFollowingFolder和mIsOneNoteFollowingFolder为false。 +接着，如果笔记类型是普通笔记类型（mType == Notes.TYPE_NOTE）且不是第一条记录，获取当前Cursor的位置，尝试将Cursor移动到上一条记录，然后判断上一条记录的类型是否是文件夹类型或者系统类型，如果是，再判断总记录数是否大于当前位置加1，若是则表示有多条笔记跟随该文件夹，将mIsMultiNotesFollowingFolder设为true，否则设为mIsOneNoteFollowingFolder设为true，最后将Cursor移回原来位置（通过moveToNext方法，如果移不回则抛出异常），以此完成对笔记与文件夹关联位置关系的判断。 +状态获取相关函数 +isOneFollowingFolder()： +所属类：NoteItemData +功能：返回mIsOneNoteFollowingFolder的值，用于判断当前笔记是否是跟随文件夹的唯一一条笔记，外部代码可以通过调用这个方法知晓笔记的这种特殊位置关系情况。 +isMultiFollowingFolder()： +所属类：NoteItemData +功能：返回mIsMultiNotesFollowingFolder的值，用于判断当前笔记是否有多条笔记跟随所在的文件夹，方便外部代码根据这个结果进行不同的界面展示或者业务逻辑处理等。 +isLast()： +所属类：NoteItemData +功能：返回mIsLastItem的值，判断当前笔记是否是列表中的最后一项，在处理列表滚动、分页等相关逻辑时可能会用到这个判断结果。 +isFirst()： +所属类：NoteItemData +功能：返回mIsFirstItem的值，判断当前笔记是否是列表中的第一项，同样在一些涉及列表顺序相关的操作场景中会用到这个判断结果。 +isSingle()： +所属类：NoteItemData +功能：返回mIsOnlyOneItem的值，判断整个列表中是否只有当前这一个笔记项，对于一些特殊的界面显示或者数据处理逻辑（比如只有一个笔记时的特殊展示方式）可以依据这个结果来实现。 +数据获取相关函数 +getCallName()： +所属类：NoteItemData +功能：返回mName的值，即获取与笔记关联的联系人姓名（如果有），外部代码可以利用这个方法来展示笔记对应的联系人相关信息，比如在通话记录笔记展示中显示来电人姓名等场景。 +getId()、getAlertDate()、getCreatedDate()、getModifiedDate()、getBgColorId()、getParentId()、getNotesCount()、getFolderId()、getType()、getWidgetType()、getWidgetId()、getSnippet()： +所属类：NoteItemData +功能：这些函数分别返回对应成员变量（如mId、mAlertDate等）的值，方便外部代码获取笔记的各项具体数据，例如获取笔记ID用于数据关联、获取提醒日期用于展示提醒相关信息、获取片段内容用于在列表中展示笔记的简要内容等 + */ + +package net.micode.notes.ui; + +import android.content.Context; +import android.database.Cursor; +import android.text.TextUtils; + +import net.micode.notes.data.Contact; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.tool.DataUtils; + + +public class NoteItemData { + static final String [] PROJECTION = new String [] { + NoteColumns.ID, + NoteColumns.ALERTED_DATE, + NoteColumns.BG_COLOR_ID, + NoteColumns.CREATED_DATE, + NoteColumns.HAS_ATTACHMENT, + NoteColumns.MODIFIED_DATE, + NoteColumns.NOTES_COUNT, + NoteColumns.PARENT_ID, + NoteColumns.SNIPPET, + NoteColumns.TYPE, + NoteColumns.WIDGET_ID, + NoteColumns.WIDGET_TYPE, + }; + + private static final int ID_COLUMN = 0; + private static final int ALERTED_DATE_COLUMN = 1; + private static final int BG_COLOR_ID_COLUMN = 2; + private static final int CREATED_DATE_COLUMN = 3; + private static final int HAS_ATTACHMENT_COLUMN = 4; + private static final int MODIFIED_DATE_COLUMN = 5; + private static final int NOTES_COUNT_COLUMN = 6; + private static final int PARENT_ID_COLUMN = 7; + private static final int SNIPPET_COLUMN = 8; + private static final int TYPE_COLUMN = 9; + private static final int WIDGET_ID_COLUMN = 10; + private static final int WIDGET_TYPE_COLUMN = 11; + + private long mId; + private long mAlertDate; + private int mBgColorId; + private long mCreatedDate; + private boolean mHasAttachment; + private long mModifiedDate; + private int mNotesCount; + private long mParentId; + private String mSnippet; + private int mType; + private int mWidgetId; + private int mWidgetType; + private String mName; + private String mPhoneNumber; + + private boolean mIsLastItem; + private boolean mIsFirstItem; + private boolean mIsOnlyOneItem; + private boolean mIsOneNoteFollowingFolder; + private boolean mIsMultiNotesFollowingFolder; + + public NoteItemData(Context context, Cursor cursor) { + mId = cursor.getLong(ID_COLUMN); + mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN); + mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN); + mCreatedDate = cursor.getLong(CREATED_DATE_COLUMN); + mHasAttachment = (cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0) ? true : false; + mModifiedDate = cursor.getLong(MODIFIED_DATE_COLUMN); + mNotesCount = cursor.getInt(NOTES_COUNT_COLUMN); + mParentId = cursor.getLong(PARENT_ID_COLUMN); + mSnippet = cursor.getString(SNIPPET_COLUMN); + mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "").replace( + NoteEditActivity.TAG_UNCHECKED, ""); + mType = cursor.getInt(TYPE_COLUMN); + mWidgetId = cursor.getInt(WIDGET_ID_COLUMN); + mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN); + + mPhoneNumber = ""; + if (mParentId == Notes.ID_CALL_RECORD_FOLDER) { + mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId); + if (!TextUtils.isEmpty(mPhoneNumber)) { + mName = Contact.getContact(context, mPhoneNumber); + if (mName == null) { + mName = mPhoneNumber; + } + } + } + + if (mName == null) { + mName = ""; + } + checkPostion(cursor); + } + + private void checkPostion(Cursor cursor) { + mIsLastItem = cursor.isLast() ? true : false; + mIsFirstItem = cursor.isFirst() ? true : false; + mIsOnlyOneItem = (cursor.getCount() == 1); + mIsMultiNotesFollowingFolder = false; + mIsOneNoteFollowingFolder = false; + + if (mType == Notes.TYPE_NOTE && !mIsFirstItem) { + int position = cursor.getPosition(); + if (cursor.moveToPrevious()) { + if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER + || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) { + if (cursor.getCount() > (position + 1)) { + mIsMultiNotesFollowingFolder = true; + } else { + mIsOneNoteFollowingFolder = true; + } + } + if (!cursor.moveToNext()) { + throw new IllegalStateException("cursor move to previous but can't move back"); + } + } + } + } + + public boolean isOneFollowingFolder() { + return mIsOneNoteFollowingFolder; + } + + public boolean isMultiFollowingFolder() { + return mIsMultiNotesFollowingFolder; + } + + public boolean isLast() { + return mIsLastItem; + } + + public String getCallName() { + return mName; + } + + public boolean isFirst() { + return mIsFirstItem; + } + + public boolean isSingle() { + return mIsOnlyOneItem; + } + + public long getId() { + return mId; + } + + public long getAlertDate() { + return mAlertDate; + } + + public long getCreatedDate() { + return mCreatedDate; + } + + public boolean hasAttachment() { + return mHasAttachment; + } + + public long getModifiedDate() { + return mModifiedDate; + } + + public int getBgColorId() { + return mBgColorId; + } + + public long getParentId() { + return mParentId; + } + + public int getNotesCount() { + return mNotesCount; + } + + public long getFolderId () { + return mParentId; + } + + public int getType() { + return mType; + } + + public int getWidgetType() { + return mWidgetType; + } + + public int getWidgetId() { + return mWidgetId; + } + + public String getSnippet() { + return mSnippet; + } + + public boolean hasAlert() { + return (mAlertDate > 0); + } + + public boolean isCallRecord() { + return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber)); + } + + public static int getNoteType(Cursor cursor) { + return cursor.getInt(TYPE_COLUMN); + } +} diff --git a/src/ui/NotesListActivity.java b/src/ui/NotesListActivity.java new file mode 100644 index 0000000..e843aec --- /dev/null +++ b/src/ui/NotesListActivity.java @@ -0,0 +1,954 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.ui; + +import android.app.Activity; +import android.app.AlertDialog; +import android.app.Dialog; +import android.appwidget.AppWidgetManager; +import android.content.AsyncQueryHandler; +import android.content.ContentResolver; +import android.content.ContentValues; +import android.content.Context; +import android.content.DialogInterface; +import android.content.Intent; +import android.content.SharedPreferences; +import android.database.Cursor; +import android.os.AsyncTask; +import android.os.Bundle; +import android.preference.PreferenceManager; +import android.text.Editable; +import android.text.TextUtils; +import android.text.TextWatcher; +import android.util.Log; +import android.view.ActionMode; +import android.view.ContextMenu; +import android.view.ContextMenu.ContextMenuInfo; +import android.view.Display; +import android.view.HapticFeedbackConstants; +import android.view.LayoutInflater; +import android.view.Menu; +import android.view.MenuItem; +import android.view.MenuItem.OnMenuItemClickListener; +import android.view.MotionEvent; +import android.view.View; +import android.view.View.OnClickListener; +import android.view.View.OnCreateContextMenuListener; +import android.view.View.OnTouchListener; +import android.view.inputmethod.InputMethodManager; +import android.widget.AdapterView; +import android.widget.AdapterView.OnItemClickListener; +import android.widget.AdapterView.OnItemLongClickListener; +import android.widget.Button; +import android.widget.EditText; +import android.widget.ListView; +import android.widget.PopupMenu; +import android.widget.TextView; +import android.widget.Toast; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.gtask.remote.GTaskSyncService; +import net.micode.notes.model.WorkingNote; +import net.micode.notes.tool.BackupUtils; +import net.micode.notes.tool.DataUtils; +import net.micode.notes.tool.ResourceParser; +import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; +import net.micode.notes.widget.NoteWidgetProvider_2x; +import net.micode.notes.widget.NoteWidgetProvider_4x; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.util.HashSet; + +public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { + private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0; + + private static final int FOLDER_LIST_QUERY_TOKEN = 1; + + private static final int MENU_FOLDER_DELETE = 0; + + private static final int MENU_FOLDER_VIEW = 1; + + private static final int MENU_FOLDER_CHANGE_NAME = 2; + + private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; + + private enum ListEditState { + NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER + }; + + private ListEditState mState; + + private BackgroundQueryHandler mBackgroundQueryHandler; + + private NotesListAdapter mNotesListAdapter; + + private ListView mNotesListView; + + private Button mAddNewNote; + + private boolean mDispatch; + + private int mOriginY; + + private int mDispatchY; + + private TextView mTitleBar; + + private long mCurrentFolderId; + + private ContentResolver mContentResolver; + + private ModeCallback mModeCallBack; + + private static final String TAG = "NotesListActivity"; + + public static final int NOTES_LISTVIEW_SCROLL_RATE = 30; + + private NoteItemData mFocusNoteDataItem; + + private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?"; + + private static final String ROOT_FOLDER_SELECTION = "(" + NoteColumns.TYPE + "<>" + + Notes.TYPE_SYSTEM + " AND " + NoteColumns.PARENT_ID + "=?)" + " OR (" + + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER + " AND " + + NoteColumns.NOTES_COUNT + ">0)"; + + private final static int REQUEST_CODE_OPEN_NODE = 102; + private final static int REQUEST_CODE_NEW_NODE = 103; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.note_list); + initResources(); + + /** + * Insert an introduction when user firstly use this application + */ + setAppInfoFromRawRes(); + } + + @Override + protected void onActivityResult(int requestCode, int resultCode, Intent data) { + if (resultCode == RESULT_OK + && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) { + mNotesListAdapter.changeCursor(null); + } else { + super.onActivityResult(requestCode, resultCode, data); + } + } + + private void setAppInfoFromRawRes() { + SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this); + if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) { + StringBuilder sb = new StringBuilder(); + InputStream in = null; + try { + in = getResources().openRawResource(R.raw.introduction); + if (in != null) { + InputStreamReader isr = new InputStreamReader(in); + BufferedReader br = new BufferedReader(isr); + char [] buf = new char[1024]; + int len = 0; + while ((len = br.read(buf)) > 0) { + sb.append(buf, 0, len); + } + } else { + Log.e(TAG, "Read introduction file error"); + return; + } + } catch (IOException e) { + e.printStackTrace(); + return; + } finally { + if(in != null) { + try { + in.close(); + } catch (IOException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + } + + WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER, + AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE, + ResourceParser.RED); + note.setWorkingText(sb.toString()); + if (note.saveNote()) { + sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit(); + } else { + Log.e(TAG, "Save introduction note error"); + return; + } + } + } + + @Override + protected void onStart() { + super.onStart(); + startAsyncNotesListQuery(); + } + + private void initResources() { + mContentResolver = this.getContentResolver(); + mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver()); + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mNotesListView = (ListView) findViewById(R.id.notes_list); + mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null), + null, false); + mNotesListView.setOnItemClickListener(new OnListItemClickListener()); + mNotesListView.setOnItemLongClickListener(this); + mNotesListAdapter = new NotesListAdapter(this); + mNotesListView.setAdapter(mNotesListAdapter); + mAddNewNote = (Button) findViewById(R.id.btn_new_note); + mAddNewNote.setOnClickListener(this); + mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener()); + mDispatch = false; + mDispatchY = 0; + mOriginY = 0; + mTitleBar = (TextView) findViewById(R.id.tv_title_bar); + mState = ListEditState.NOTE_LIST; + mModeCallBack = new ModeCallback(); + } + + private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener { + private DropdownMenu mDropDownMenu; + private ActionMode mActionMode; + private MenuItem mMoveMenu; + + public boolean onCreateActionMode(ActionMode mode, Menu menu) { + getMenuInflater().inflate(R.menu.note_list_options, menu); + menu.findItem(R.id.delete).setOnMenuItemClickListener(this); + mMoveMenu = menu.findItem(R.id.move); + if (mFocusNoteDataItem.getParentId() == Notes.ID_CALL_RECORD_FOLDER + || DataUtils.getUserFolderCount(mContentResolver) == 0) { + mMoveMenu.setVisible(false); + } else { + mMoveMenu.setVisible(true); + mMoveMenu.setOnMenuItemClickListener(this); + } + mActionMode = mode; + mNotesListAdapter.setChoiceMode(true); + mNotesListView.setLongClickable(false); + mAddNewNote.setVisibility(View.GONE); + + View customView = LayoutInflater.from(NotesListActivity.this).inflate( + R.layout.note_list_dropdown_menu, null); + mode.setCustomView(customView); + mDropDownMenu = new DropdownMenu(NotesListActivity.this, + (Button) customView.findViewById(R.id.selection_menu), + R.menu.note_list_dropdown); + mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){ + public boolean onMenuItemClick(MenuItem item) { + mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected()); + updateMenu(); + return true; + } + + }); + return true; + } + + private void updateMenu() { + int selectedCount = mNotesListAdapter.getSelectedCount(); + // Update dropdown menu + String format = getResources().getString(R.string.menu_select_title, selectedCount); + mDropDownMenu.setTitle(format); + MenuItem item = mDropDownMenu.findItem(R.id.action_select_all); + if (item != null) { + if (mNotesListAdapter.isAllSelected()) { + item.setChecked(true); + item.setTitle(R.string.menu_deselect_all); + } else { + item.setChecked(false); + item.setTitle(R.string.menu_select_all); + } + } + } + + public boolean onPrepareActionMode(ActionMode mode, Menu menu) { + // TODO Auto-generated method stub + return false; + } + + public boolean onActionItemClicked(ActionMode mode, MenuItem item) { + // TODO Auto-generated method stub + return false; + } + + public void onDestroyActionMode(ActionMode mode) { + mNotesListAdapter.setChoiceMode(false); + mNotesListView.setLongClickable(true); + mAddNewNote.setVisibility(View.VISIBLE); + } + + public void finishActionMode() { + mActionMode.finish(); + } + + public void onItemCheckedStateChanged(ActionMode mode, int position, long id, + boolean checked) { + mNotesListAdapter.setCheckedItem(position, checked); + updateMenu(); + } + + public boolean onMenuItemClick(MenuItem item) { + if (mNotesListAdapter.getSelectedCount() == 0) { + Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none), + Toast.LENGTH_SHORT).show(); + return true; + } + + switch (item.getItemId()) { + case R.id.delete: + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(getString(R.string.alert_title_delete)); + builder.setIcon(android.R.drawable.ic_dialog_alert); + builder.setMessage(getString(R.string.alert_message_delete_notes, + mNotesListAdapter.getSelectedCount())); + builder.setPositiveButton(android.R.string.ok, + new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, + int which) { + batchDelete(); + } + }); + builder.setNegativeButton(android.R.string.cancel, null); + builder.show(); + break; + case R.id.move: + startQueryDestinationFolders(); + break; + default: + return false; + } + return true; + } + } + + private class NewNoteOnTouchListener implements OnTouchListener { + + public boolean onTouch(View v, MotionEvent event) { + switch (event.getAction()) { + case MotionEvent.ACTION_DOWN: { + Display display = getWindowManager().getDefaultDisplay(); + int screenHeight = display.getHeight(); + int newNoteViewHeight = mAddNewNote.getHeight(); + int start = screenHeight - newNoteViewHeight; + int eventY = start + (int) event.getY(); + /** + * Minus TitleBar's height + */ + if (mState == ListEditState.SUB_FOLDER) { + eventY -= mTitleBar.getHeight(); + start -= mTitleBar.getHeight(); + } + /** + * HACKME:When click the transparent part of "New Note" button, dispatch + * the event to the list view behind this button. The transparent part of + * "New Note" button could be expressed by formula y=-0.12x+94（Unit:pixel） + * and the line top of the button. The coordinate based on left of the "New + * Note" button. The 94 represents maximum height of the transparent part. + * Notice that, if the background of the button changes, the formula should + * also change. This is very bad, just for the UI designer's strong requirement. + */ + if (event.getY() < (event.getX() * (-0.12) + 94)) { + View view = mNotesListView.getChildAt(mNotesListView.getChildCount() - 1 + - mNotesListView.getFooterViewsCount()); + if (view != null && view.getBottom() > start + && (view.getTop() < (start + 94))) { + mOriginY = (int) event.getY(); + mDispatchY = eventY; + event.setLocation(event.getX(), mDispatchY); + mDispatch = true; + return mNotesListView.dispatchTouchEvent(event); + } + } + break; + } + case MotionEvent.ACTION_MOVE: { + if (mDispatch) { + mDispatchY += (int) event.getY() - mOriginY; + event.setLocation(event.getX(), mDispatchY); + return mNotesListView.dispatchTouchEvent(event); + } + break; + } + default: { + if (mDispatch) { + event.setLocation(event.getX(), mDispatchY); + mDispatch = false; + return mNotesListView.dispatchTouchEvent(event); + } + break; + } + } + return false; + } + + }; + + private void startAsyncNotesListQuery() { + String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION + : NORMAL_SELECTION; + mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null, + Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] { + String.valueOf(mCurrentFolderId) + }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC"); + } + + private final class BackgroundQueryHandler extends AsyncQueryHandler { + public BackgroundQueryHandler(ContentResolver contentResolver) { + super(contentResolver); + } + + @Override + protected void onQueryComplete(int token, Object cookie, Cursor cursor) { + switch (token) { + case FOLDER_NOTE_LIST_QUERY_TOKEN: + mNotesListAdapter.changeCursor(cursor); + break; + case FOLDER_LIST_QUERY_TOKEN: + if (cursor != null && cursor.getCount() > 0) { + showFolderListMenu(cursor); + } else { + Log.e(TAG, "Query folder failed"); + } + break; + default: + return; + } + } + } + + private void showFolderListMenu(Cursor cursor) { + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(R.string.menu_title_select_folder); + final FoldersListAdapter adapter = new FoldersListAdapter(this, cursor); + builder.setAdapter(adapter, new DialogInterface.OnClickListener() { + + public void onClick(DialogInterface dialog, int which) { + DataUtils.batchMoveToFolder(mContentResolver, + mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which)); + Toast.makeText( + NotesListActivity.this, + getString(R.string.format_move_notes_to_folder, + mNotesListAdapter.getSelectedCount(), + adapter.getFolderName(NotesListActivity.this, which)), + Toast.LENGTH_SHORT).show(); + mModeCallBack.finishActionMode(); + } + }); + builder.show(); + } + + private void createNewNote() { + Intent intent = new Intent(this, NoteEditActivity.class); + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mCurrentFolderId); + this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE); + } + + private void batchDelete() { + new AsyncTask>() { + protected HashSet doInBackground(Void... unused) { + HashSet widgets = mNotesListAdapter.getSelectedWidget(); + if (!isSyncMode()) { + // if not synced, delete notes directly + if (DataUtils.batchDeleteNotes(mContentResolver, mNotesListAdapter + .getSelectedItemIds())) { + } else { + Log.e(TAG, "Delete notes error, should not happens"); + } + } else { + // in sync mode, we'll move the deleted note into the trash + // folder + if (!DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter + .getSelectedItemIds(), Notes.ID_TRASH_FOLER)) { + Log.e(TAG, "Move notes to trash folder error, should not happens"); + } + } + return widgets; + } + + @Override + protected void onPostExecute(HashSet widgets) { + if (widgets != null) { + for (AppWidgetAttribute widget : widgets) { + if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { + updateWidget(widget.widgetId, widget.widgetType); + } + } + } + mModeCallBack.finishActionMode(); + } + }.execute(); + } + + private void deleteFolder(long folderId) { + if (folderId == Notes.ID_ROOT_FOLDER) { + Log.e(TAG, "Wrong folder id, should not happen " + folderId); + return; + } + + HashSet ids = new HashSet(); + ids.add(folderId); + HashSet widgets = DataUtils.getFolderNoteWidget(mContentResolver, + folderId); + if (!isSyncMode()) { + // if not synced, delete folder directly + DataUtils.batchDeleteNotes(mContentResolver, ids); + } else { + // in sync mode, we'll move the deleted folder into the trash folder + DataUtils.batchMoveToFolder(mContentResolver, ids, Notes.ID_TRASH_FOLER); + } + if (widgets != null) { + for (AppWidgetAttribute widget : widgets) { + if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { + updateWidget(widget.widgetId, widget.widgetType); + } + } + } + } + + private void openNode(NoteItemData data) { + Intent intent = new Intent(this, NoteEditActivity.class); + intent.setAction(Intent.ACTION_VIEW); + intent.putExtra(Intent.EXTRA_UID, data.getId()); + this.startActivityForResult(intent, REQUEST_CODE_OPEN_NODE); + } + + private void openFolder(NoteItemData data) { + mCurrentFolderId = data.getId(); + startAsyncNotesListQuery(); + if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { + mState = ListEditState.CALL_RECORD_FOLDER; + mAddNewNote.setVisibility(View.GONE); + } else { + mState = ListEditState.SUB_FOLDER; + } + if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { + mTitleBar.setText(R.string.call_record_folder_name); + } else { + mTitleBar.setText(data.getSnippet()); + } + mTitleBar.setVisibility(View.VISIBLE); + } + + public void onClick(View v) { + switch (v.getId()) { + case R.id.btn_new_note: + createNewNote(); + break; + default: + break; + } + } + + private void showSoftInput() { + InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); + if (inputMethodManager != null) { + inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0); + } + } + + private void hideSoftInput(View view) { + InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); + inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); + } + + private void showCreateOrModifyFolderDialog(final boolean create) { + final AlertDialog.Builder builder = new AlertDialog.Builder(this); + View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null); + final EditText etName = (EditText) view.findViewById(R.id.et_foler_name); + showSoftInput(); + if (!create) { + if (mFocusNoteDataItem != null) { + etName.setText(mFocusNoteDataItem.getSnippet()); + builder.setTitle(getString(R.string.menu_folder_change_name)); + } else { + Log.e(TAG, "The long click data item is null"); + return; + } + } else { + etName.setText(""); + builder.setTitle(this.getString(R.string.menu_create_folder)); + } + + builder.setPositiveButton(android.R.string.ok, null); + builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int which) { + hideSoftInput(etName); + } + }); + + final Dialog dialog = builder.setView(view).show(); + final Button positive = (Button)dialog.findViewById(android.R.id.button1); + positive.setOnClickListener(new OnClickListener() { + public void onClick(View v) { + hideSoftInput(etName); + String name = etName.getText().toString(); + if (DataUtils.checkVisibleFolderName(mContentResolver, name)) { + Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name), + Toast.LENGTH_LONG).show(); + etName.setSelection(0, etName.length()); + return; + } + if (!create) { + if (!TextUtils.isEmpty(name)) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.SNIPPET, name); + values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); + values.put(NoteColumns.LOCAL_MODIFIED, 1); + mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID + + "=?", new String[] { + String.valueOf(mFocusNoteDataItem.getId()) + }); + } + } else if (!TextUtils.isEmpty(name)) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.SNIPPET, name); + values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); + mContentResolver.insert(Notes.CONTENT_NOTE_URI, values); + } + dialog.dismiss(); + } + }); + + if (TextUtils.isEmpty(etName.getText())) { + positive.setEnabled(false); + } + /** + * When the name edit text is null, disable the positive button + */ + etName.addTextChangedListener(new TextWatcher() { + public void beforeTextChanged(CharSequence s, int start, int count, int after) { + // TODO Auto-generated method stub + + } + + public void onTextChanged(CharSequence s, int start, int before, int count) { + if (TextUtils.isEmpty(etName.getText())) { + positive.setEnabled(false); + } else { + positive.setEnabled(true); + } + } + + public void afterTextChanged(Editable s) { + // TODO Auto-generated method stub + + } + }); + } + + @Override + public void onBackPressed() { + switch (mState) { + case SUB_FOLDER: + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mState = ListEditState.NOTE_LIST; + startAsyncNotesListQuery(); + mTitleBar.setVisibility(View.GONE); + break; + case CALL_RECORD_FOLDER: + mCurrentFolderId = Notes.ID_ROOT_FOLDER; + mState = ListEditState.NOTE_LIST; + mAddNewNote.setVisibility(View.VISIBLE); + mTitleBar.setVisibility(View.GONE); + startAsyncNotesListQuery(); + break; + case NOTE_LIST: + super.onBackPressed(); + break; + default: + break; + } + } + + private void updateWidget(int appWidgetId, int appWidgetType) { + Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); + if (appWidgetType == Notes.TYPE_WIDGET_2X) { + intent.setClass(this, NoteWidgetProvider_2x.class); + } else if (appWidgetType == Notes.TYPE_WIDGET_4X) { + intent.setClass(this, NoteWidgetProvider_4x.class); + } else { + Log.e(TAG, "Unspported widget type"); + return; + } + + intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { + appWidgetId + }); + + sendBroadcast(intent); + setResult(RESULT_OK, intent); + } + + private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() { + public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { + if (mFocusNoteDataItem != null) { + menu.setHeaderTitle(mFocusNoteDataItem.getSnippet()); + menu.add(0, MENU_FOLDER_VIEW, 0, R.string.menu_folder_view); + menu.add(0, MENU_FOLDER_DELETE, 0, R.string.menu_folder_delete); + menu.add(0, MENU_FOLDER_CHANGE_NAME, 0, R.string.menu_folder_change_name); + } + } + }; + + @Override + public void onContextMenuClosed(Menu menu) { + if (mNotesListView != null) { + mNotesListView.setOnCreateContextMenuListener(null); + } + super.onContextMenuClosed(menu); + } + + @Override + public boolean onContextItemSelected(MenuItem item) { + if (mFocusNoteDataItem == null) { + Log.e(TAG, "The long click data item is null"); + return false; + } + switch (item.getItemId()) { + case MENU_FOLDER_VIEW: + openFolder(mFocusNoteDataItem); + break; + case MENU_FOLDER_DELETE: + AlertDialog.Builder builder = new AlertDialog.Builder(this); + builder.setTitle(getString(R.string.alert_title_delete)); + builder.setIcon(android.R.drawable.ic_dialog_alert); + builder.setMessage(getString(R.string.alert_message_delete_folder)); + builder.setPositiveButton(android.R.string.ok, + new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int which) { + deleteFolder(mFocusNoteDataItem.getId()); + } + }); + builder.setNegativeButton(android.R.string.cancel, null); + builder.show(); + break; + case MENU_FOLDER_CHANGE_NAME: + showCreateOrModifyFolderDialog(false); + break; + default: + break; + } + + return true; + } + + @Override + public boolean onPrepareOptionsMenu(Menu menu) { + menu.clear(); + if (mState == ListEditState.NOTE_LIST) { + getMenuInflater().inflate(R.menu.note_list, menu); + // set sync or sync_cancel + menu.findItem(R.id.menu_sync).setTitle( + GTaskSyncService.isSyncing() ? R.string.menu_sync_cancel : R.string.menu_sync); + } else if (mState == ListEditState.SUB_FOLDER) { + getMenuInflater().inflate(R.menu.sub_folder, menu); + } else if (mState == ListEditState.CALL_RECORD_FOLDER) { + getMenuInflater().inflate(R.menu.call_record_folder, menu); + } else { + Log.e(TAG, "Wrong state:" + mState); + } + return true; + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + switch (item.getItemId()) { + case R.id.menu_new_folder: { + showCreateOrModifyFolderDialog(true); + break; + } + case R.id.menu_export_text: { + exportNoteToText(); + break; + } + case R.id.menu_sync: { + if (isSyncMode()) { + if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) { + GTaskSyncService.startSync(this); + } else { + GTaskSyncService.cancelSync(this); + } + } else { + startPreferenceActivity(); + } + break; + } + case R.id.menu_setting: { + startPreferenceActivity(); + break; + } + case R.id.menu_new_note: { + createNewNote(); + break; + } + case R.id.menu_search: + onSearchRequested(); + break; + default: + break; + } + return true; + } + + @Override + public boolean onSearchRequested() { + startSearch(null, false, null /* appData */, false); + return true; + } + + private void exportNoteToText() { + final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this); + new AsyncTask() { + + @Override + protected Integer doInBackground(Void... unused) { + return backup.exportToText(); + } + + @Override + protected void onPostExecute(Integer result) { + if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) { + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(NotesListActivity.this + .getString(R.string.failed_sdcard_export)); + builder.setMessage(NotesListActivity.this + .getString(R.string.error_sdcard_unmounted)); + builder.setPositiveButton(android.R.string.ok, null); + builder.show(); + } else if (result == BackupUtils.STATE_SUCCESS) { + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(NotesListActivity.this + .getString(R.string.success_sdcard_export)); + builder.setMessage(NotesListActivity.this.getString( + R.string.format_exported_file_location, backup + .getExportedTextFileName(), backup.getExportedTextFileDir())); + builder.setPositiveButton(android.R.string.ok, null); + builder.show(); + } else if (result == BackupUtils.STATE_SYSTEM_ERROR) { + AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); + builder.setTitle(NotesListActivity.this + .getString(R.string.failed_sdcard_export)); + builder.setMessage(NotesListActivity.this + .getString(R.string.error_sdcard_export)); + builder.setPositiveButton(android.R.string.ok, null); + builder.show(); + } + } + + }.execute(); + } + + private boolean isSyncMode() { + return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; + } + + private void startPreferenceActivity() { + Activity from = getParent() != null ? getParent() : this; + Intent intent = new Intent(from, NotesPreferenceActivity.class); + from.startActivityIfNeeded(intent, -1); + } + + private class OnListItemClickListener implements OnItemClickListener { + + public void onItemClick(AdapterView parent, View view, int position, long id) { + if (view instanceof NotesListItem) { + NoteItemData item = ((NotesListItem) view).getItemData(); + if (mNotesListAdapter.isInChoiceMode()) { + if (item.getType() == Notes.TYPE_NOTE) { + position = position - mNotesListView.getHeaderViewsCount(); + mModeCallBack.onItemCheckedStateChanged(null, position, id, + !mNotesListAdapter.isSelectedItem(position)); + } + return; + } + + switch (mState) { + case NOTE_LIST: + if (item.getType() == Notes.TYPE_FOLDER + || item.getType() == Notes.TYPE_SYSTEM) { + openFolder(item); + } else if (item.getType() == Notes.TYPE_NOTE) { + openNode(item); + } else { + Log.e(TAG, "Wrong note type in NOTE_LIST"); + } + break; + case SUB_FOLDER: + case CALL_RECORD_FOLDER: + if (item.getType() == Notes.TYPE_NOTE) { + openNode(item); + } else { + Log.e(TAG, "Wrong note type in SUB_FOLDER"); + } + break; + default: + break; + } + } + } + + } + + private void startQueryDestinationFolders() { + String selection = NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>? AND " + NoteColumns.ID + "<>?"; + selection = (mState == ListEditState.NOTE_LIST) ? selection: + "(" + selection + ") OR (" + NoteColumns.ID + "=" + Notes.ID_ROOT_FOLDER + ")"; + + mBackgroundQueryHandler.startQuery(FOLDER_LIST_QUERY_TOKEN, + null, + Notes.CONTENT_NOTE_URI, + FoldersListAdapter.PROJECTION, + selection, + new String[] { + String.valueOf(Notes.TYPE_FOLDER), + String.valueOf(Notes.ID_TRASH_FOLER), + String.valueOf(mCurrentFolderId) + }, + NoteColumns.MODIFIED_DATE + " DESC"); + } + + public boolean onItemLongClick(AdapterView parent, View view, int position, long id) { + if (view instanceof NotesListItem) { + mFocusNoteDataItem = ((NotesListItem) view).getItemData(); + if (mFocusNoteDataItem.getType() == Notes.TYPE_NOTE && !mNotesListAdapter.isInChoiceMode()) { + if (mNotesListView.startActionMode(mModeCallBack) != null) { + mModeCallBack.onItemCheckedStateChanged(null, position, id, true); + mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); + } else { + Log.e(TAG, "startActionMode fails"); + } + } else if (mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) { + mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener); + } + } + return false; + } +} diff --git a/src/ui/NotesListAdapter.java b/src/ui/NotesListAdapter.java new file mode 100644 index 0000000..316c437 --- /dev/null +++ b/src/ui/NotesListAdapter.java @@ -0,0 +1,212 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 代码定义了NotesListAdapter类，它继承自CursorAdapter，主要用于在安卓应用中对笔记相关数据（以Cursor形式体现）进行适配，以便在列表等视图组件中展示相应的笔记信息，并实现了多项与笔记选择、统计相关的功能。例如支持设置选择模式、选中特定项、全选操作，能获取选中项的ID集合、选中的部件相关属性集合、选中的数量等信息，同时在数据内容变化或游标改变时会重新计算笔记数量，整体为处理笔记列表展示及选择操作提供了较为完善的功能支持。 +函数分析 +构造函数 +NotesListAdapter(Context context)： +所属类：NotesListAdapter +功能： +首先调用父类（CursorAdapter）的构造函数并传入Context和null游标，进行基础的初始化。 +创建一个HashMap（mSelectedIndex）用于记录每个位置的笔记项是否被选中，将传入的Context赋值给mContext，并初始化笔记数量（mNotesCount）为0，为后续记录和处理笔记相关的选择状态及数量统计等操作做准备。 +视图创建相关函数 +newView(Context context, Cursor cursor, ViewGroup parent)： +所属类：NotesListAdapter +功能：重写了父类CursorAdapter的newView方法，用于创建一个新的视图对象来展示Cursor中的每一条数据记录。在这个方法中，它创建并返回了一个NotesListItem类的实例，意味着每一条笔记数据记录都会通过这个自定义的视图来展示，后续可以在这个自定义视图中进行具体的数据绑定和展示相关操作。 +视图数据绑定函数 +bindView(View view, Context context, Cursor cursor)： +所属类：NotesListAdapter +功能：重写了父类CursorAdapter的bindView方法，用于将Cursor中的数据绑定到对应的视图上进行展示。首先判断传入的视图是否是NotesListItem类型，如果是，则创建一个NoteItemData实例（通过传入Context和Cursor）来解析和封装当前笔记数据，然后调用((NotesListItem) view).bind方法，将Context、封装好的笔记数据（itemData）、选择模式（mChoiceMode）以及当前项是否被选中（通过isSelectedItem方法判断）等信息传递进去，在NotesListItem的bind方法中应该会根据这些信息来设置视图的具体显示内容，比如是否显示选中状态等。 +选中项设置函数 +setCheckedItem(final int position, final boolean checked)： +所属类：NotesListAdapter +功能：接收笔记项的位置和是否选中的布尔值两个参数，将对应位置的选中状态记录到mSelectedIndex这个HashMap中，然后调用notifyDataSetChanged方法通知数据集发生了变化，使得视图能根据新的选中状态进行刷新显示，例如更新列表项的选中外观等。 +选择模式相关函数 +isInChoiceMode()： +所属类：NotesListAdapter +功能：返回mChoiceMode的值，用于判断当前是否处于选择模式，外部代码可以根据这个返回值来决定是否显示选择相关的操作界面元素（如全选按钮等）。 +setChoiceMode(boolean mode)： +所属类：NotesListAdapter +功能：接收一个布尔值参数用于设置选择模式，先清空之前记录的选中项信息（通过mSelectedIndex.clear），然后将传入的布尔值赋值给mChoiceMode，改变整个适配器的选择模式状态，后续的选择操作会依据新的模式进行处理。 + */ + +package net.micode.notes.ui; + +import android.content.Context; +import android.database.Cursor; +import android.util.Log; +import android.view.View; +import android.view.ViewGroup; +import android.widget.CursorAdapter; + +import net.micode.notes.data.Notes; + +import java.util.Collection; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; + + +public class NotesListAdapter extends CursorAdapter { + private static final String TAG = "NotesListAdapter"; + private Context mContext; + private HashMap mSelectedIndex; + private int mNotesCount; + private boolean mChoiceMode; + + public static class AppWidgetAttribute { + public int widgetId; + public int widgetType; + }; + + public NotesListAdapter(Context context) { + super(context, null); + mSelectedIndex = new HashMap(); + mContext = context; + mNotesCount = 0; + } + + @Override + public View newView(Context context, Cursor cursor, ViewGroup parent) { + return new NotesListItem(context); + } + + @Override + public void bindView(View view, Context context, Cursor cursor) { + if (view instanceof NotesListItem) { + NoteItemData itemData = new NoteItemData(context, cursor); + ((NotesListItem) view).bind(context, itemData, mChoiceMode, + isSelectedItem(cursor.getPosition())); + } + } + + public void setCheckedItem(final int position, final boolean checked) { + mSelectedIndex.put(position, checked); + notifyDataSetChanged(); + } + + public boolean isInChoiceMode() { + return mChoiceMode; + } + + public void setChoiceMode(boolean mode) { + mSelectedIndex.clear(); + mChoiceMode = mode; + } + + public void selectAll(boolean checked) { + Cursor cursor = getCursor(); + for (int i = 0; i < getCount(); i++) { + if (cursor.moveToPosition(i)) { + if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) { + setCheckedItem(i, checked); + } + } + } + } + + public HashSet getSelectedItemIds() { + HashSet itemSet = new HashSet(); + for (Integer position : mSelectedIndex.keySet()) { + if (mSelectedIndex.get(position) == true) { + Long id = getItemId(position); + if (id == Notes.ID_ROOT_FOLDER) { + Log.d(TAG, "Wrong item id, should not happen"); + } else { + itemSet.add(id); + } + } + } + + return itemSet; + } + + public HashSet getSelectedWidget() { + HashSet itemSet = new HashSet(); + for (Integer position : mSelectedIndex.keySet()) { + if (mSelectedIndex.get(position) == true) { + Cursor c = (Cursor) getItem(position); + if (c != null) { + AppWidgetAttribute widget = new AppWidgetAttribute(); + NoteItemData item = new NoteItemData(mContext, c); + widget.widgetId = item.getWidgetId(); + widget.widgetType = item.getWidgetType(); + itemSet.add(widget); + /** + * Don't close cursor here, only the adapter could close it + */ + } else { + Log.e(TAG, "Invalid cursor"); + return null; + } + } + } + return itemSet; + } + + public int getSelectedCount() { + Collection values = mSelectedIndex.values(); + if (null == values) { + return 0; + } + Iterator iter = values.iterator(); + int count = 0; + while (iter.hasNext()) { + if (true == iter.next()) { + count++; + } + } + return count; + } + + public boolean isAllSelected() { + int checkedCount = getSelectedCount(); + return (checkedCount != 0 && checkedCount == mNotesCount); + } + + public boolean isSelectedItem(final int position) { + if (null == mSelectedIndex.get(position)) { + return false; + } + return mSelectedIndex.get(position); + } + + @Override + protected void onContentChanged() { + super.onContentChanged(); + calcNotesCount(); + } + + @Override + public void changeCursor(Cursor cursor) { + super.changeCursor(cursor); + calcNotesCount(); + } + + private void calcNotesCount() { + mNotesCount = 0; + for (int i = 0; i < getCount(); i++) { + Cursor c = (Cursor) getItem(i); + if (c != null) { + if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) { + mNotesCount++; + } + } else { + Log.e(TAG, "Invalid cursor"); + return; + } + } + } +} diff --git a/src/ui/NotesListItem.java b/src/ui/NotesListItem.java new file mode 100644 index 0000000..e6bc06f --- /dev/null +++ b/src/ui/NotesListItem.java @@ -0,0 +1,154 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 代码定义了NotesListItem类，它继承自LinearLayout，是用于展示笔记列表中每一项具体内容的自定义视图类。通过绑定NoteItemData类型的数据，根据笔记不同的类型（如通话记录文件夹、普通文件夹、普通笔记等）以及相关属性（是否有提醒、是否是首项、末项等）来设置各个子视图（如TextView、ImageView、CheckBox等）的显示内容和可见性，并设置该项的背景样式，以此实现个性化的笔记列表项展示效果，同时提供了获取所绑定数据的方法方便外部获取对应笔记信息。 +函数分析 +构造函数 +NotesListItem(Context context)： +所属类：NotesListItem +功能： +首先调用父类（LinearLayout）的构造函数传入Context，完成基础的初始化。 +通过inflate方法加载名为R.layout.note_item的布局文件到自身，该布局文件应该定义了笔记列表项的具体外观结构，包含了如提醒图标、标题、时间、联系人姓名、复选框等子视图的布局设置。 +接着使用findViewById方法从加载的布局中找到对应的子视图控件并赋值给相应的成员变量（如mAlert、mTitle等），方便后续在bind方法中对这些子视图进行内容设置等操作。 +数据绑定函数 +bind(Context context, NoteItemData data, boolean choiceMode, boolean checked)： +所属类：NotesListItem +功能： +根据传入的选择模式（choiceMode）以及笔记类型（通过data.getType()判断是否为Notes.TYPE_NOTE）来设置复选框（mCheckBox）的可见性和选中状态。如果处于选择模式且是普通笔记类型，则将复选框设为可见并按照传入的checked参数设置其选中状态，否则将其隐藏。 +将传入的NoteItemData实例赋值给mItemData成员变量，用于后续可能的获取数据操作。 +接着依据笔记的不同情况进行具体的视图内容设置： +如果笔记的ID是通话记录文件夹的ID（Notes.ID_CALL_RECORD_FOLDER），则隐藏联系人姓名视图（mCallName），显示提醒图标（mAlert），设置标题的文本外观样式（通过setTextAppearance方法），并设置标题文本为通话记录文件夹名称加上包含笔记数量的格式化字符串，同时设置提醒图标的资源为通话记录对应的图标（R.drawable.call_record）。 +如果笔记的父ID是通话记录文件夹的ID，则显示联系人姓名视图并设置其文本为笔记关联的联系人姓名（通过data.getCallName()获取），设置标题文本外观样式并将标题文本设置为格式化后的笔记内容片段（通过DataUtils.getFormattedSnippet方法获取），再根据笔记是否有提醒（通过data.hasAlert()判断）来设置提醒图标的可见性和对应图标资源（有提醒则显示时钟图标）。 +对于其他情况，如果是普通文件夹类型（data.getType() == Notes.TYPE_FOLDER），则隐藏联系人姓名视图，设置标题文本外观样式，并将标题文本设置为笔记内容片段加上包含笔记数量的格式化字符串，同时隐藏提醒图标；如果是普通笔记类型，则设置标题文本外观样式，并将标题文本设置为格式化后的笔记内容片段，再根据是否有提醒来设置提醒图标的可见性和对应图标资源。 +最后通过mTime.setText方法设置时间文本为根据笔记修改日期（通过data.getModifiedDate()获取）格式化后的相对时间字符串（通过DateUtils.getRelativeTimeSpanString方法获取），并调用setBackground方法根据笔记数据来设置该项的背景样式，完成整个笔记列表项的内容和样式设置。 +背景设置函数 +setBackground(NoteItemData data)： +所属类：NotesListItem +功能： +首先获取笔记数据中的背景颜色ID（通过data.getBgColorId()）。 +如果笔记类型是普通笔记类型（data.getType() == Notes.TYPE_NOTE），则进一步根据笔记在列表中的位置关系（是否是单个、首项、末项、跟随文件夹等情况，通过data.isSingle()、data.isFirst()等方法判断）来设置该项的背景资源，分别调用NoteItemBgResources类中对应的获取背景资源方法（如getNoteBgSingleRes、getNoteBgLastRes等）来获取相应的背景资源并设置给自身（通过setBackgroundResource方法），实现不同位置普通笔记的差异化背景显示效果。 +如果笔记类型不是普通笔记类型（即其他类型，比如文件夹类型），则统一调用NoteItemBgResources.getFolderBgRes方法获取文件夹对应的背景资源并设置给自身，确保文件夹有对应的合适背景样式。 +获取数据函数 +getItemData()： +所属类：NotesListItem +功能：返回成员变量mItemData，外部代码可以通过调用这个方法获取当前NotesListItem所绑定的NoteItemData实例，进而获取笔记的各项详细信息，方便在其他业务逻辑中使用这些数据，比如获取笔记ID、内容片段等信息。 + */ + +package net.micode.notes.ui; + +import android.content.Context; +import android.text.format.DateUtils; +import android.view.View; +import android.widget.CheckBox; +import android.widget.ImageView; +import android.widget.LinearLayout; +import android.widget.TextView; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.DataUtils; +import net.micode.notes.tool.ResourceParser.NoteItemBgResources; + + +public class NotesListItem extends LinearLayout { + private ImageView mAlert; + private TextView mTitle; + private TextView mTime; + private TextView mCallName; + private NoteItemData mItemData; + private CheckBox mCheckBox; + + public NotesListItem(Context context) { + super(context); + inflate(context, R.layout.note_item, this); + mAlert = (ImageView) findViewById(R.id.iv_alert_icon); + mTitle = (TextView) findViewById(R.id.tv_title); + mTime = (TextView) findViewById(R.id.tv_time); + mCallName = (TextView) findViewById(R.id.tv_name); + mCheckBox = (CheckBox) findViewById(android.R.id.checkbox); + } + + public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) { + if (choiceMode && data.getType() == Notes.TYPE_NOTE) { + mCheckBox.setVisibility(View.VISIBLE); + mCheckBox.setChecked(checked); + } else { + mCheckBox.setVisibility(View.GONE); + } + + mItemData = data; + if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { + mCallName.setVisibility(View.GONE); + mAlert.setVisibility(View.VISIBLE); + mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); + mTitle.setText(context.getString(R.string.call_record_folder_name) + + context.getString(R.string.format_folder_files_count, data.getNotesCount())); + mAlert.setImageResource(R.drawable.call_record); + } else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) { + mCallName.setVisibility(View.VISIBLE); + mCallName.setText(data.getCallName()); + mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem); + mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); + if (data.hasAlert()) { + mAlert.setImageResource(R.drawable.clock); + mAlert.setVisibility(View.VISIBLE); + } else { + mAlert.setVisibility(View.GONE); + } + } else { + mCallName.setVisibility(View.GONE); + mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); + + if (data.getType() == Notes.TYPE_FOLDER) { + mTitle.setText(data.getSnippet() + + context.getString(R.string.format_folder_files_count, + data.getNotesCount())); + mAlert.setVisibility(View.GONE); + } else { + mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); + if (data.hasAlert()) { + mAlert.setImageResource(R.drawable.clock); + mAlert.setVisibility(View.VISIBLE); + } else { + mAlert.setVisibility(View.GONE); + } + } + } + mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate())); + + setBackground(data); + } + + private void setBackground(NoteItemData data) { + int id = data.getBgColorId(); + if (data.getType() == Notes.TYPE_NOTE) { + if (data.isSingle() || data.isOneFollowingFolder()) { + setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id)); + } else if (data.isLast()) { + setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id)); + } else if (data.isFirst() || data.isMultiFollowingFolder()) { + setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id)); + } else { + setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id)); + } + } else { + setBackgroundResource(NoteItemBgResources.getFolderBgRes()); + } + } + + public NoteItemData getItemData() { + return mItemData; + } +} diff --git a/src/ui/NotesPreferenceActivity.java b/src/ui/NotesPreferenceActivity.java new file mode 100644 index 0000000..bf856d0 --- /dev/null +++ b/src/ui/NotesPreferenceActivity.java @@ -0,0 +1,409 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * 总体分析 +这段 Java 代码定义了NotesPreferenceActivity类，它继承自PreferenceActivity，主要用于实现安卓应用中与笔记相关的设置界面及相关功能逻辑。在这个类中，涉及到账户管理（如选择、设置、移除同步账户）、同步操作（启动、取消同步以及展示同步状态等）、界面 UI 的动态刷新、接收广播更新界面显示等功能，同时还处理了返回键点击等操作，整体为用户提供了一个可配置笔记同步相关设置以及查看同步状态的交互界面。 +函数分析 +onCreate方法 +所属类：NotesPreferenceActivity +功能： +首先调用父类的onCreate方法完成基础的初始化工作。 +通过getActionBar().setDisplayHomeAsUpEnabled(true)设置 ActionBar 上的返回按钮可用，方便用户返回上一级界面。 +使用addPreferencesFromResource方法加载名为R.xml.preferences的偏好设置资源文件，用于构建设置界面的初始布局和选项内容。 +获取名为PREFERENCE_SYNC_ACCOUNT_KEY的PreferenceCategory对象（用于后续添加、管理与同步账户相关的偏好设置选项），创建一个GTaskReceiver广播接收者实例（用于接收同步服务相关广播），并注册该广播接收者，监听GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME对应的广播消息。 +将存储原始账户信息的mOriAccounts初始化为null，通过LayoutInflater加载名为R.layout.settings_header的布局文件并添加到列表视图头部，用于展示一些自定义的界面头部内容。 +onResume方法 +所属类：NotesPreferenceActivity +功能： +首先调用父类的onResume方法保证原生相关逻辑执行，比如恢复界面状态等操作。 +判断mHasAddedAccount标志位，如果用户添加了新账户（该标志位为true），获取当前的谷歌账户列表，对比原始账户列表（mOriAccounts）长度，若新列表更长，则遍历新账户列表，查找新增的账户，找到后调用setSyncAccount方法设置新的同步账户，并跳出循环，实现自动设置同步账户的逻辑。 +调用refreshUI方法刷新整个设置界面的显示内容，确保界面展示的信息（如账户选项、同步按钮状态等）是最新的。 +onDestroy方法 +所属类：NotesPreferenceActivity +功能： +判断mReceiver是否为null，如果不为null，则调用unregisterReceiver方法注销之前注册的GTaskReceiver广播接收者，避免出现内存泄漏等问题，然后调用父类的onDestroy方法执行原生的销毁相关逻辑。 + */ + +package net.micode.notes.ui; + +import android.accounts.Account; +import android.accounts.AccountManager; +import android.app.ActionBar; +import android.app.AlertDialog; +import android.content.BroadcastReceiver; +import android.content.ContentValues; +import android.content.Context; +import android.content.DialogInterface; +import android.content.Intent; +import android.content.IntentFilter; +import android.content.SharedPreferences; +import android.os.Bundle; +import android.preference.Preference; +import android.preference.Preference.OnPreferenceClickListener; +import android.preference.PreferenceActivity; +import android.preference.PreferenceCategory; +import android.text.TextUtils; +import android.text.format.DateFormat; +import android.view.LayoutInflater; +import android.view.Menu; +import android.view.MenuItem; +import android.view.View; +import android.widget.Button; +import android.widget.TextView; +import android.widget.Toast; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.gtask.remote.GTaskSyncService; + + +public class NotesPreferenceActivity extends PreferenceActivity { + public static final String PREFERENCE_NAME = "notes_preferences"; + + public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name"; + + public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time"; + + public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear"; + + private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key"; + + private static final String AUTHORITIES_FILTER_KEY = "authorities"; + + private PreferenceCategory mAccountCategory; + + private GTaskReceiver mReceiver; + + private Account[] mOriAccounts; + + private boolean mHasAddedAccount; + + @Override + protected void onCreate(Bundle icicle) { + super.onCreate(icicle); + + /* using the app icon for navigation */ + getActionBar().setDisplayHomeAsUpEnabled(true); + + addPreferencesFromResource(R.xml.preferences); + mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY); + mReceiver = new GTaskReceiver(); + IntentFilter filter = new IntentFilter(); + filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME); + registerReceiver(mReceiver, filter); + + mOriAccounts = null; + View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null); + getListView().addHeaderView(header, null, true); + } + + @Override + protected void onResume() { + super.onResume(); + + // need to set sync account automatically if user has added a new + // account + if (mHasAddedAccount) { + Account[] accounts = getGoogleAccounts(); + if (mOriAccounts != null && accounts.length > mOriAccounts.length) { + for (Account accountNew : accounts) { + boolean found = false; + for (Account accountOld : mOriAccounts) { + if (TextUtils.equals(accountOld.name, accountNew.name)) { + found = true; + break; + } + } + if (!found) { + setSyncAccount(accountNew.name); + break; + } + } + } + } + + refreshUI(); + } + + @Override + protected void onDestroy() { + if (mReceiver != null) { + unregisterReceiver(mReceiver); + } + super.onDestroy(); + } + + private void loadAccountPreference() { + mAccountCategory.removeAll(); + + Preference accountPref = new Preference(this); + final String defaultAccount = getSyncAccountName(this); + accountPref.setTitle(getString(R.string.preferences_account_title)); + accountPref.setSummary(getString(R.string.preferences_account_summary)); + accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() { + public boolean onPreferenceClick(Preference preference) { + if (!GTaskSyncService.isSyncing()) { + if (TextUtils.isEmpty(defaultAccount)) { + // the first time to set account + showSelectAccountAlertDialog(); + } else { + // if the account has already been set, we need to promp + // user about the risk + showChangeAccountConfirmAlertDialog(); + } + } else { + Toast.makeText(NotesPreferenceActivity.this, + R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT) + .show(); + } + return true; + } + }); + + mAccountCategory.addPreference(accountPref); + } + + private void loadSyncButton() { + Button syncButton = (Button) findViewById(R.id.preference_sync_button); + TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview); + + // set button state + if (GTaskSyncService.isSyncing()) { + syncButton.setText(getString(R.string.preferences_button_sync_cancel)); + syncButton.setOnClickListener(new View.OnClickListener() { + public void onClick(View v) { + GTaskSyncService.cancelSync(NotesPreferenceActivity.this); + } + }); + } else { + syncButton.setText(getString(R.string.preferences_button_sync_immediately)); + syncButton.setOnClickListener(new View.OnClickListener() { + public void onClick(View v) { + GTaskSyncService.startSync(NotesPreferenceActivity.this); + } + }); + } + syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this))); + + // set last sync time + if (GTaskSyncService.isSyncing()) { + lastSyncTimeView.setText(GTaskSyncService.getProgressString()); + lastSyncTimeView.setVisibility(View.VISIBLE); + } else { + long lastSyncTime = getLastSyncTime(this); + if (lastSyncTime != 0) { + lastSyncTimeView.setText(getString(R.string.preferences_last_sync_time, + DateFormat.format(getString(R.string.preferences_last_sync_time_format), + lastSyncTime))); + lastSyncTimeView.setVisibility(View.VISIBLE); + } else { + lastSyncTimeView.setVisibility(View.GONE); + } + } + } + + private void refreshUI() { + loadAccountPreference(); + loadSyncButton(); + } + + private void showSelectAccountAlertDialog() { + AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); + + View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null); + TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title); + titleTextView.setText(getString(R.string.preferences_dialog_select_account_title)); + TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle); + subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips)); + + dialogBuilder.setCustomTitle(titleView); + dialogBuilder.setPositiveButton(null, null); + + Account[] accounts = getGoogleAccounts(); + String defAccount = getSyncAccountName(this); + + mOriAccounts = accounts; + mHasAddedAccount = false; + + if (accounts.length > 0) { + CharSequence[] items = new CharSequence[accounts.length]; + final CharSequence[] itemMapping = items; + int checkedItem = -1; + int index = 0; + for (Account account : accounts) { + if (TextUtils.equals(account.name, defAccount)) { + checkedItem = index; + } + items[index++] = account.name; + } + dialogBuilder.setSingleChoiceItems(items, checkedItem, + new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int which) { + setSyncAccount(itemMapping[which].toString()); + dialog.dismiss(); + refreshUI(); + } + }); + } + + View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null); + dialogBuilder.setView(addAccountView); + + final AlertDialog dialog = dialogBuilder.show(); + addAccountView.setOnClickListener(new View.OnClickListener() { + public void onClick(View v) { + mHasAddedAccount = true; + Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS"); + intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] { + "gmail-ls" + }); + startActivityForResult(intent, -1); + dialog.dismiss(); + } + }); + } + + private void showChangeAccountConfirmAlertDialog() { + AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); + + View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null); + TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title); + titleTextView.setText(getString(R.string.preferences_dialog_change_account_title, + getSyncAccountName(this))); + TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle); + subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg)); + dialogBuilder.setCustomTitle(titleView); + + CharSequence[] menuItemArray = new CharSequence[] { + getString(R.string.preferences_menu_change_account), + getString(R.string.preferences_menu_remove_account), + getString(R.string.preferences_menu_cancel) + }; + dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int which) { + if (which == 0) { + showSelectAccountAlertDialog(); + } else if (which == 1) { + removeSyncAccount(); + refreshUI(); + } + } + }); + dialogBuilder.show(); + } + + private Account[] getGoogleAccounts() { + AccountManager accountManager = AccountManager.get(this); + return accountManager.getAccountsByType("com.google"); + } + + private void setSyncAccount(String account) { + if (!getSyncAccountName(this).equals(account)) { + SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); + SharedPreferences.Editor editor = settings.edit(); + if (account != null) { + editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account); + } else { + editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); + } + editor.commit(); + + // clean up last sync time + setLastSyncTime(this, 0); + + // clean up local gtask related info + new Thread(new Runnable() { + public void run() { + ContentValues values = new ContentValues(); + values.put(NoteColumns.GTASK_ID, ""); + values.put(NoteColumns.SYNC_ID, 0); + getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); + } + }).start(); + + Toast.makeText(NotesPreferenceActivity.this, + getString(R.string.preferences_toast_success_set_accout, account), + Toast.LENGTH_SHORT).show(); + } + } + + private void removeSyncAccount() { + SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); + SharedPreferences.Editor editor = settings.edit(); + if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) { + editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME); + } + if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) { + editor.remove(PREFERENCE_LAST_SYNC_TIME); + } + editor.commit(); + + // clean up local gtask related info + new Thread(new Runnable() { + public void run() { + ContentValues values = new ContentValues(); + values.put(NoteColumns.GTASK_ID, ""); + values.put(NoteColumns.SYNC_ID, 0); + getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); + } + }).start(); + } + + public static String getSyncAccountName(Context context) { + SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, + Context.MODE_PRIVATE); + return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); + } + + public static void setLastSyncTime(Context context, long time) { + SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, + Context.MODE_PRIVATE); + SharedPreferences.Editor editor = settings.edit(); + editor.putLong(PREFERENCE_LAST_SYNC_TIME, time); + editor.commit(); + } + + public static long getLastSyncTime(Context context) { + SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, + Context.MODE_PRIVATE); + return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0); + } + + private class GTaskReceiver extends BroadcastReceiver { + + @Override + public void onReceive(Context context, Intent intent) { + refreshUI(); + if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) { + TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview); + syncStatus.setText(intent + .getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG)); + } + + } + } + + public boolean onOptionsItemSelected(MenuItem item) { + switch (item.getItemId()) { + case android.R.id.home: + Intent intent = new Intent(this, NotesListActivity.class); + intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); + startActivity(intent); + return true; + default: + return false; + } + } +} diff --git a/src/widget/NoteWidgetProvider.java b/src/widget/NoteWidgetProvider.java new file mode 100644 index 0000000..ec6f819 --- /dev/null +++ b/src/widget/NoteWidgetProvider.java @@ -0,0 +1,132 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.widget; +import android.app.PendingIntent; +import android.appwidget.AppWidgetManager; +import android.appwidget.AppWidgetProvider; +import android.content.ContentValues; +import android.content.Context; +import android.content.Intent; +import android.database.Cursor; +import android.util.Log; +import android.widget.RemoteViews; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.tool.ResourceParser; +import net.micode.notes.ui.NoteEditActivity; +import net.micode.notes.ui.NotesListActivity; + +public abstract class NoteWidgetProvider extends AppWidgetProvider { + public static final String [] PROJECTION = new String [] { + NoteColumns.ID, + NoteColumns.BG_COLOR_ID, + NoteColumns.SNIPPET + }; + + public static final int COLUMN_ID = 0; + public static final int COLUMN_BG_COLOR_ID = 1; + public static final int COLUMN_SNIPPET = 2; + + private static final String TAG = "NoteWidgetProvider"; + + @Override + public void onDeleted(Context context, int[] appWidgetIds) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); + for (int i = 0; i < appWidgetIds.length; i++) { + context.getContentResolver().update(Notes.CONTENT_NOTE_URI, + values, + NoteColumns.WIDGET_ID + "=?", + new String[] { String.valueOf(appWidgetIds[i])}); + } + } + + private Cursor getNoteWidgetInfo(Context context, int widgetId) { + return context.getContentResolver().query(Notes.CONTENT_NOTE_URI, + PROJECTION, + NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?", + new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) }, + null); + } + + protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + update(context, appWidgetManager, appWidgetIds, false); + } + + private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds, + boolean privacyMode) { + for (int i = 0; i < appWidgetIds.length; i++) { + if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) { + int bgId = ResourceParser.getDefaultBgId(context); + String snippet = ""; + Intent intent = new Intent(context, NoteEditActivity.class); + intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]); + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType()); + + Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]); + if (c != null && c.moveToFirst()) { + if (c.getCount() > 1) { + Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]); + c.close(); + return; + } + snippet = c.getString(COLUMN_SNIPPET); + bgId = c.getInt(COLUMN_BG_COLOR_ID); + intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID)); + intent.setAction(Intent.ACTION_VIEW); + } else { + snippet = context.getResources().getString(R.string.widget_havenot_content); + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + } + + if (c != null) { + c.close(); + } + + RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId()); + rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId)); + intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId); + /** + * Generate the pending intent to start host for the widget + */ + PendingIntent pendingIntent = null; + if (privacyMode) { + rv.setTextViewText(R.id.widget_text, + context.getString(R.string.widget_under_visit_mode)); + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent( + context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT); + } else { + rv.setTextViewText(R.id.widget_text, snippet); + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent, + PendingIntent.FLAG_UPDATE_CURRENT); + } + + rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent); + appWidgetManager.updateAppWidget(appWidgetIds[i], rv); + } + } + } + + protected abstract int getBgResourceId(int bgId); + + protected abstract int getLayoutId(); + + protected abstract int getWidgetType(); +} diff --git a/src/widget/NoteWidgetProvider_2x.java b/src/widget/NoteWidgetProvider_2x.java new file mode 100644 index 0000000..adcb2f7 --- /dev/null +++ b/src/widget/NoteWidgetProvider_2x.java @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.widget; + +import android.appwidget.AppWidgetManager; +import android.content.Context; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.ResourceParser; + + +public class NoteWidgetProvider_2x extends NoteWidgetProvider { + @Override + public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + super.update(context, appWidgetManager, appWidgetIds); + } + + @Override + protected int getLayoutId() { + return R.layout.widget_2x; + } + + @Override + protected int getBgResourceId(int bgId) { + return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId); + } + + @Override + protected int getWidgetType() { + return Notes.TYPE_WIDGET_2X; + } +} diff --git a/src/widget/NoteWidgetProvider_4x.java b/src/widget/NoteWidgetProvider_4x.java new file mode 100644 index 0000000..c12a02e --- /dev/null +++ b/src/widget/NoteWidgetProvider_4x.java @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.widget; + +import android.appwidget.AppWidgetManager; +import android.content.Context; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.ResourceParser; + + +public class NoteWidgetProvider_4x extends NoteWidgetProvider { + @Override + public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + super.update(context, appWidgetManager, appWidgetIds); + } + + protected int getLayoutId() { + return R.layout.widget_4x; + } + + @Override + protected int getBgResourceId(int bgId) { + return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId); + } + + @Override + protected int getWidgetType() { + return Notes.TYPE_WIDGET_4X; + } +}