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yangmingrui

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yangmingrui 7 months ago
parent 5c2c3cf910
commit b72f772fd9
15 changed files with 2129 additions and 1741 deletions
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637
src/java/net/micode/notes/tool/BackupUtils.java
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@ -14,331 +14,316 @@
* limitations under the License. * limitations under the License.
*/ */
package net.micode.notes.tool; package net.micode.notes.tool;
import android.content.Context; public class BackupUtils {
import android.database.Cursor; private static final String TAG = "BackupUtils";
import android.os.Environment; // Singleton stuff
import android.text.TextUtils; private static BackupUtils sInstance; //类里面为什么可以定义自身类的对象？
import android.text.format.DateFormat;
import android.util.Log; public static synchronized BackupUtils getInstance(Context context) {
//ynchronized 关键字，代表这个方法加锁,相当于不管哪一个线程（例如线程A）
import net.micode.notes.R; //运行到这个方法时,都要检查有没有其它线程B（或者C、 D等）正在用这个方法(或者该类的其他同步方法)，有的话要等正在使用synchronized方法的线程B（或者C 、D）运行完这个方法后再运行此线程A,没有的话,锁定调用者,然后直接运行。
import net.micode.notes.data.Notes; //它包括两种用法：synchronized 方法和 synchronized 块。
import net.micode.notes.data.Notes.DataColumns; if (sInstance == null) {
import net.micode.notes.data.Notes.DataConstants; //如果当前备份不存在，则新声明一个
import net.micode.notes.data.Notes.NoteColumns; sInstance = new BackupUtils(context);
}
import java.io.File; return sInstance;
import java.io.FileNotFoundException; }
import java.io.FileOutputStream;
import java.io.IOException; /**
import java.io.PrintStream; * Following states are signs to represents backup or restore
* status
*/
public class BackupUtils { // Currently, the sdcard is not mounted SD卡没有被装入手机
private static final String TAG = "BackupUtils"; public static final int STATE_SD_CARD_UNMOUONTED = 0;
// Singleton stuff // The backup file not exist 备份文件夹不存在
private static BackupUtils sInstance; public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
// The data is not well formated, may be changed by other programs 数据已被破坏，可能被修改
public static synchronized BackupUtils getInstance(Context context) { public static final int STATE_DATA_DESTROIED = 2;
if (sInstance == null) { // Some run-time exception which causes restore or backup fails 超时异常
sInstance = new BackupUtils(context); public static final int STATE_SYSTEM_ERROR = 3;
} // Backup or restore success 成功存储
return sInstance; public static final int STATE_SUCCESS = 4;
}
private TextExport mTextExport;
/**
* Following states are signs to represents backup or restore private BackupUtils(Context context) { //初始化函数
* status mTextExport = new TextExport(context);
*/ }
// Currently, the sdcard is not mounted
public static final int STATE_SD_CARD_UNMOUONTED = 0; private static boolean externalStorageAvailable() { //外部存储功能是否可用
// The backup file not exist return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
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; public int exportToText() {
// Some run-time exception which causes restore or backup fails return mTextExport.exportToText();
public static final int STATE_SYSTEM_ERROR = 3; }
// Backup or restore success
public static final int STATE_SUCCESS = 4; public String getExportedTextFileName() {
return mTextExport.mFileName;
private TextExport mTextExport; }
private BackupUtils(Context context) { public String getExportedTextFileDir() {
mTextExport = new TextExport(context); return mTextExport.mFileDirectory;
} }
private static boolean externalStorageAvailable() { private static class TextExport {
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); private static final String[] NOTE_PROJECTION = {
} NoteColumns.ID,
NoteColumns.MODIFIED_DATE,
public int exportToText() { NoteColumns.SNIPPET,
return mTextExport.exportToText(); NoteColumns.TYPE
} };
public String getExportedTextFileName() { private static final int NOTE_COLUMN_ID = 0;
return mTextExport.mFileName;
} private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
public String getExportedTextFileDir() { private static final int NOTE_COLUMN_SNIPPET = 2;
return mTextExport.mFileDirectory;
} private static final String[] DATA_PROJECTION = {
DataColumns.CONTENT,
private static class TextExport { DataColumns.MIME_TYPE,
private static final String[] NOTE_PROJECTION = { DataColumns.DATA1,
NoteColumns.ID, DataColumns.DATA2,
NoteColumns.MODIFIED_DATE, DataColumns.DATA3,
NoteColumns.SNIPPET, DataColumns.DATA4,
NoteColumns.TYPE };
};
private static final int DATA_COLUMN_CONTENT = 0;
private static final int NOTE_COLUMN_ID = 0;
private static final int DATA_COLUMN_MIME_TYPE = 1;
private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
private static final int DATA_COLUMN_CALL_DATE = 2;
private static final int NOTE_COLUMN_SNIPPET = 2;
private static final int DATA_COLUMN_PHONE_NUMBER = 4;
private static final String[] DATA_PROJECTION = {
DataColumns.CONTENT, private final String [] TEXT_FORMAT;
DataColumns.MIME_TYPE, private static final int FORMAT_FOLDER_NAME = 0;
DataColumns.DATA1, private static final int FORMAT_NOTE_DATE = 1;
DataColumns.DATA2, private static final int FORMAT_NOTE_CONTENT = 2;
DataColumns.DATA3,
DataColumns.DATA4, private Context mContext;
}; private String mFileName;
private String mFileDirectory;
private static final int DATA_COLUMN_CONTENT = 0;
public TextExport(Context context) {
private static final int DATA_COLUMN_MIME_TYPE = 1; TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
mContext = context;
private static final int DATA_COLUMN_CALL_DATE = 2; mFileName = ""; //为什么为空?
mFileDirectory = "";
private static final int DATA_COLUMN_PHONE_NUMBER = 4; }
private final String [] TEXT_FORMAT; private String getFormat(int id) { //获取文本的组成部分
private static final int FORMAT_FOLDER_NAME = 0; return TEXT_FORMAT[id];
private static final int FORMAT_NOTE_DATE = 1; }
private static final int FORMAT_NOTE_CONTENT = 2;
/**
private Context mContext; * Export the folder identified by folder id to text
private String mFileName; */
private String mFileDirectory; private void exportFolderToText(String folderId, PrintStream ps) {
// Query notes belong to this folder 通过查询parent id是文件夹id的note来选出制定ID文件夹下的Note
public TextExport(Context context) { Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
mContext = context; folderId
mFileName = ""; }, null);
mFileDirectory = "";
} if (notesCursor != null) {
if (notesCursor.moveToFirst()) {
private String getFormat(int id) { do {
return TEXT_FORMAT[id]; // Print note's last modified date ps里面保存有这份note的日期
} ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
mContext.getString(R.string.format_datetime_mdhm),
/** notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
* Export the folder identified by folder id to text // Query data belong to this note
*/ String noteId = notesCursor.getString(NOTE_COLUMN_ID);
private void exportFolderToText(String folderId, PrintStream ps) { exportNoteToText(noteId, ps); //将文件导出到text
// Query notes belong to this folder } while (notesCursor.moveToNext());
Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, }
NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { notesCursor.close();
folderId }
}, null); }
if (notesCursor != null) { /**
if (notesCursor.moveToFirst()) { * Export note identified by id to a print stream
do { */
// Print note's last modified date private void exportNoteToText(String noteId, PrintStream ps) {
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
mContext.getString(R.string.format_datetime_mdhm), DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); noteId
// Query data belong to this note }, null);
String noteId = notesCursor.getString(NOTE_COLUMN_ID);
exportNoteToText(noteId, ps); if (dataCursor != null) { //利用光标来扫描内容，区别为callnote和note两种，靠ps.printline输出
} while (notesCursor.moveToNext()); if (dataCursor.moveToFirst()) {
} do {
notesCursor.close(); 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);
* Export note identified by id to a print stream String location = dataCursor.getString(DATA_COLUMN_CONTENT);
*/
private void exportNoteToText(String noteId, PrintStream ps) { if (!TextUtils.isEmpty(phoneNumber)) { //判断是否为空字符
Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { phoneNumber));
noteId }
}, null); // Print call date
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
if (dataCursor != null) { .format(mContext.getString(R.string.format_datetime_mdhm),
if (dataCursor.moveToFirst()) { callDate)));
do { // Print call attachment location
String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); if (!TextUtils.isEmpty(location)) {
if (DataConstants.CALL_NOTE.equals(mimeType)) { ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
// Print phone number location));
String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); }
long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); } else if (DataConstants.NOTE.equals(mimeType)) {
String location = dataCursor.getString(DATA_COLUMN_CONTENT); String content = dataCursor.getString(DATA_COLUMN_CONTENT);
if (!TextUtils.isEmpty(content)) {
if (!TextUtils.isEmpty(phoneNumber)) { ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), content));
phoneNumber)); }
} }
// Print call date } while (dataCursor.moveToNext());
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat }
.format(mContext.getString(R.string.format_datetime_mdhm), dataCursor.close();
callDate))); }
// Print call attachment location // print a line separator between note
if (!TextUtils.isEmpty(location)) { try {
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), ps.write(new byte[] {
location)); Character.LINE_SEPARATOR, Character.LETTER_NUMBER
} });
} else if (DataConstants.NOTE.equals(mimeType)) { } catch (IOException e) {
String content = dataCursor.getString(DATA_COLUMN_CONTENT); Log.e(TAG, e.toString());
if (!TextUtils.isEmpty(content)) { }
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), }
content));
} /**
} * Note will be exported as text which is user readable
} while (dataCursor.moveToNext()); */
} public int exportToText() { //总函数，调用上面的exportFolder和exportNote
dataCursor.close(); if (!externalStorageAvailable()) {
} Log.d(TAG, "Media was not mounted");
// print a line separator between note return STATE_SD_CARD_UNMOUONTED;
try { }
ps.write(new byte[] {
Character.LINE_SEPARATOR, Character.LETTER_NUMBER PrintStream ps = getExportToTextPrintStream();
}); if (ps == null) {
} catch (IOException e) { Log.e(TAG, "get print stream error");
Log.e(TAG, e.toString()); return STATE_SYSTEM_ERROR;
} }
} // First export folder and its notes 导出文件夹，就是导出里面包含的便签
Cursor folderCursor = mContext.getContentResolver().query(
/** Notes.CONTENT_NOTE_URI,
* Note will be exported as text which is user readable NOTE_PROJECTION,
*/ "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND "
public int exportToText() { + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
if (!externalStorageAvailable()) { + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null);
Log.d(TAG, "Media was not mounted");
return STATE_SD_CARD_UNMOUONTED; if (folderCursor != null) {
} if (folderCursor.moveToFirst()) {
do {
PrintStream ps = getExportToTextPrintStream(); // Print folder's name
if (ps == null) { String folderName = "";
Log.e(TAG, "get print stream error"); if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
return STATE_SYSTEM_ERROR; folderName = mContext.getString(R.string.call_record_folder_name);
} } else {
// First export folder and its notes folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
Cursor folderCursor = mContext.getContentResolver().query( }
Notes.CONTENT_NOTE_URI, if (!TextUtils.isEmpty(folderName)) {
NOTE_PROJECTION, ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
"(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND " }
+ NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR " String folderId = folderCursor.getString(NOTE_COLUMN_ID);
+ NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null); exportFolderToText(folderId, ps);
} while (folderCursor.moveToNext());
if (folderCursor != null) { }
if (folderCursor.moveToFirst()) { folderCursor.close();
do { }
// Print folder's name
String folderName = ""; // Export notes in root's folder 将根目录里的便签导出（由于不属于任何文件夹，因此无法通过文件夹导出来实现这一部分便签的导出）
if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { Cursor noteCursor = mContext.getContentResolver().query(
folderName = mContext.getString(R.string.call_record_folder_name); Notes.CONTENT_NOTE_URI,
} else { NOTE_PROJECTION,
folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET); NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
} + "=0", null, null);
if (!TextUtils.isEmpty(folderName)) {
ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName)); if (noteCursor != null) {
} if (noteCursor.moveToFirst()) {
String folderId = folderCursor.getString(NOTE_COLUMN_ID); do {
exportFolderToText(folderId, ps); ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
} while (folderCursor.moveToNext()); mContext.getString(R.string.format_datetime_mdhm),
} noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
folderCursor.close(); // Query data belong to this note
} String noteId = noteCursor.getString(NOTE_COLUMN_ID);
exportNoteToText(noteId, ps);
// Export notes in root's folder } while (noteCursor.moveToNext());
Cursor noteCursor = mContext.getContentResolver().query( }
Notes.CONTENT_NOTE_URI, noteCursor.close();
NOTE_PROJECTION, }
NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID ps.close();
+ "=0", null, null);
return STATE_SUCCESS;
if (noteCursor != null) { }
if (noteCursor.moveToFirst()) {
do { /**
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( * Get a print stream pointed to the file {@generateExportedTextFile}
mContext.getString(R.string.format_datetime_mdhm), */
noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); private PrintStream getExportToTextPrintStream() {
// Query data belong to this note File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
String noteId = noteCursor.getString(NOTE_COLUMN_ID); R.string.file_name_txt_format);
exportNoteToText(noteId, ps); if (file == null) {
} while (noteCursor.moveToNext()); Log.e(TAG, "create file to exported failed");
} return null;
noteCursor.close(); }
} mFileName = file.getName();
ps.close(); mFileDirectory = mContext.getString(R.string.file_path);
PrintStream ps = null;
return STATE_SUCCESS; try {
} FileOutputStream fos = new FileOutputStream(file);
ps = new PrintStream(fos); //将ps输出流输出到特定的文件，目的就是导出到文件，而不是直接输出
/** } catch (FileNotFoundException e) {
* Get a print stream pointed to the file {@generateExportedTextFile} e.printStackTrace();
*/ return null;
private PrintStream getExportToTextPrintStream() { } catch (NullPointerException e) {
File file = generateFileMountedOnSDcard(mContext, R.string.file_path, e.printStackTrace();
R.string.file_name_txt_format); return null;
if (file == null) { }
Log.e(TAG, "create file to exported failed"); return ps;
return null; }
} }
mFileName = file.getName();
mFileDirectory = mContext.getString(R.string.file_path); /**
PrintStream ps = null; * Generate the text file to store imported data
try { */
FileOutputStream fos = new FileOutputStream(file); private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
ps = new PrintStream(fos); StringBuilder sb = new StringBuilder();
} catch (FileNotFoundException e) { sb.append(Environment.getExternalStorageDirectory()); //外部（SD卡）的存储路径
e.printStackTrace(); sb.append(context.getString(filePathResId)); //文件的存储路径
return null; File filedir = new File(sb.toString()); //filedir应该就是用来存储路径信息
} catch (NullPointerException e) { sb.append(context.getString(
e.printStackTrace(); fileNameFormatResId,
return null; DateFormat.format(context.getString(R.string.format_date_ymd),
} System.currentTimeMillis())));
return ps; File file = new File(sb.toString());
}
} try { //如果这些文件不存在，则新建
if (!filedir.exists()) {
/** filedir.mkdir();
* Generate the text file to store imported data }
*/ if (!file.exists()) {
private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { file.createNewFile();
StringBuilder sb = new StringBuilder(); }
sb.append(Environment.getExternalStorageDirectory()); return file;
sb.append(context.getString(filePathResId)); } catch (SecurityException e) {
File filedir = new File(sb.toString()); e.printStackTrace();
sb.append(context.getString( } catch (IOException e) {
fileNameFormatResId, e.printStackTrace();
DateFormat.format(context.getString(R.string.format_date_ymd), }
System.currentTimeMillis()))); // try catch 异常处理
File file = new File(sb.toString()); return null;
}
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;
}
}

448
src/java/net/micode/notes/tool/DataUtils.java
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@ -13,9 +13,9 @@
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
* limitations under the License. * limitations under the License.
*/ */
/*该类定义在 net.micode.notes.tool 包下，并导入了Android和Java的一些核心类。这些导入的类提供了对内容提供者操作、日志记录、游标以及存储值的支持。 */
package net.micode.notes.tool; package net.micode.notes.tool;
/*定义了一个公共类 DataUtils，并创建了一个常量 TAG 用于日志记录。 */
import android.content.ContentProviderOperation; import android.content.ContentProviderOperation;
import android.content.ContentProviderResult; import android.content.ContentProviderResult;
import android.content.ContentResolver; import android.content.ContentResolver;
@ -34,7 +34,9 @@ import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.HashSet; import java.util.HashSet;
/*这个方法实现了根据一组ID批量删除笔记的功能。
它首先检查ID集合是否为空，并创建一个操作列表。
通过 ContentResolver 执行删除操作，成功后返回 true，失败则返回 false。 */
public class DataUtils { public class DataUtils {
public static final String TAG = "DataUtils"; public static final String TAG = "DataUtils";
public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) { public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
@ -71,7 +73,9 @@ public class DataUtils {
} }
return false; return false;
} }
/*此方法将指定的笔记移动到目标文件夹。
更新笔记的父文件夹ID并标记为本地修改。 */
/*查询非系统文件夹的数量。异常处理用于确保在查询失败时释放游标资源。 */
public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
ContentValues values = new ContentValues(); ContentValues values = new ContentValues();
values.put(NoteColumns.PARENT_ID, desFolderId); values.put(NoteColumns.PARENT_ID, desFolderId);
@ -88,238 +92,294 @@ public class DataUtils {
* @param: [resolver, ids, folderId] * @param: [resolver, ids, folderId]
* @return: boolean * @return: boolean
*/ */
public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids, long folderId) { /*检查数据库中是否存在特定类型的可见笔记。 */
if (ids == null) { /**
Log.d(TAG, "the ids is null"); * 批量将便签移动到指定文件夹
return true; * @param resolver ContentResolver对象
} * @param ids 需要移动的便签ID集合
* @param folderId 目标文件夹ID
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>(); * @return 是否移动成功
for (long id : ids) { */
ContentProviderOperation.Builder builder = ContentProviderOperation public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids, long folderId) {
.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); if (ids == null) {
builder.withValue(NoteColumns.PARENT_ID, folderId); Log.d(TAG, "the ids is null");
builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); return true;
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;
} }
/** ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
* Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}} for (long id : ids) {
*/ ContentProviderOperation.Builder builder = ContentProviderOperation
public static int getUserFolderCount(ContentResolver resolver) { .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI, builder.withValue(NoteColumns.PARENT_ID, folderId);
new String[] { "COUNT(*)" }, builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", operationList.add(builder.build());
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;
} }
/**
* @Method visibleInNoteDatabase
* @Date 2024/12/13 9:08
* @param resolver
* @param noteId
* @param type
* @Author lenovo
* @Return boolean
* @Description 访问数据库中是否有 noteId 对应的便签
*/
public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
/**
* withAppendedId 将 URI 和 ID 连接成一个新的URI
* query 返回 Uri 中符合 selection 的表格
* lenovo 2024/12/13 9:06
*/
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; try {
if (cursor != null) { ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
if (cursor.getCount() > 0) { if (results == null || results.length == 0 || results[0] == null) {
exist = true; Log.d(TAG, "delete notes failed, ids:" + ids.toString());
} return false;
cursor.close();
} }
return exist; 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 boolean existInNoteDatabase(ContentResolver resolver, long noteId) { /**
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), * 获取用户文件夹的数量（不包括系统文件夹）
null, null, null, null); * @param resolver ContentResolver对象
* @return 用户文件夹的数量
*/
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);
boolean exist = false; int count = 0;
if (cursor != null) { if(cursor != null) {
if (cursor.getCount() > 0) { if(cursor.moveToFirst()) {
exist = true; try {
count = cursor.getInt(0);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "get folder count failed:" + e.toString());
} finally {
cursor.close();
} }
cursor.close();
} }
return exist;
} }
return count;
}
public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { /**
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), * 检查数据库中是否存在指定ID和类型的便签
null, null, null, null); * @param resolver ContentResolver对象
* @param noteId 便签ID
* @param type 便签类型
* @return 是否存在
*/
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; boolean exist = false;
if (cursor != null) { if (cursor != null) {
if (cursor.getCount() > 0) { if (cursor.getCount() > 0) {
exist = true; exist = true;
}
cursor.close();
} }
return exist; cursor.close();
} }
return exist;
}
public static boolean checkVisibleFolderName(ContentResolver resolver, String name) { /**
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null, * 检查数据库中是否存在指定ID的便签
NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + * @param resolver ContentResolver对象
" AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + * @param noteId 便签ID
" AND " + NoteColumns.SNIPPET + "=?", * @return 是否存在
new String[] { name }, null); */
boolean exist = false; public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
if(cursor != null) { Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
if(cursor.getCount() > 0) { null, null, null, null);
exist = true;
} boolean exist = false;
cursor.close(); if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
} }
return exist; cursor.close();
} }
return exist;
}
public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) { /**
Cursor c = resolver.query(Notes.CONTENT_NOTE_URI, * 检查数据库中是否存在指定ID的数据
new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE }, * @param resolver ContentResolver对象
NoteColumns.PARENT_ID + "=?", * @param dataId 数据ID
new String[] { String.valueOf(folderId) }, * @return 是否存在
null); */
public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
null, null, null, null);
HashSet<AppWidgetAttribute> set = null; boolean exist = false;
if (c != null) { if (cursor != null) {
if (c.moveToFirst()) { if (cursor.getCount() > 0) {
set = new HashSet<AppWidgetAttribute>(); exist = true;
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; cursor.close();
} }
return exist;
}
public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { /**
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, * 检查数据库中是否存在指定名称的可见文件夹
new String [] { CallNote.PHONE_NUMBER }, * @param resolver ContentResolver对象
CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", * @param name 文件夹名称
new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, * @return 是否存在
null); */
public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
if (cursor != null && cursor.moveToFirst()) { Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
try { NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
return cursor.getString(0); " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
} catch (IndexOutOfBoundsException e) { " AND " + NoteColumns.SNIPPET + "=?",
Log.e(TAG, "Get call number fails " + e.toString()); new String[] { name }, null);
} finally { boolean exist = false;
cursor.close(); if(cursor != null) {
} if(cursor.getCount() > 0) {
exist = true;
} }
return ""; cursor.close();
} }
return exist;
}
public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) { /**
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, * 获取指定文件夹中的小部件属性集合
new String [] { CallNote.NOTE_ID }, * @param resolver ContentResolver对象
CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL(" * @param folderId 文件夹ID
+ CallNote.PHONE_NUMBER + ",?)", * @return 小部件属性集合
new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber }, */
null); public static HashSet<AppWidgetAttribute> 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);
if (cursor != null) { HashSet<AppWidgetAttribute> set = null;
if (cursor.moveToFirst()) { if (c != null) {
if (c.moveToFirst()) {
set = new HashSet<AppWidgetAttribute>();
do {
try { try {
return cursor.getLong(0); AppWidgetAttribute widget = new AppWidgetAttribute();
widget.widgetId = c.getInt(0);
widget.widgetType = c.getInt(1);
set.add(widget);
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
Log.e(TAG, "Get call note id fails " + e.toString()); Log.e(TAG, e.toString());
} }
} } while (c.moveToNext());
cursor.close();
} }
return 0; c.close();
} }
return set;
}
public static String getSnippetById(ContentResolver resolver, long noteId) { /**
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, * 根据便签ID获取电话号码
new String [] { NoteColumns.SNIPPET }, * @param resolver ContentResolver对象
NoteColumns.ID + "=?", * @param noteId 便签ID
new String [] { String.valueOf(noteId)}, * @return 电话号码
null); */
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) { if (cursor != null && cursor.moveToFirst()) {
String snippet = ""; try {
if (cursor.moveToFirst()) { return cursor.getString(0);
snippet = cursor.getString(0); } catch (IndexOutOfBoundsException e) {
} Log.e(TAG, "Get call number fails " + e.toString());
} finally {
cursor.close(); cursor.close();
return snippet;
} }
throw new IllegalArgumentException("Note is not found with id: " + noteId);
} }
return "";
}
public static String getFormattedSnippet(String snippet) { /**
if (snippet != null) { * 根据电话号码和通话日期获取便签ID
snippet = snippet.trim(); * @param resolver ContentResolver对象
int index = snippet.indexOf('\n'); * @param phoneNumber 电话号码
if (index != -1) { * @param callDate 通话日期
snippet = snippet.substring(0, index); * @return 便签ID
*/
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;
}
/**
* 根据便签ID获取便签摘要
* @param resolver ContentResolver对象
* @param noteId 便签ID
* @return 便签摘要
*/
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; return snippet;
} }
throw new IllegalArgumentException("Note is not found with id: " + noteId);
}
public static Cursor searchInNoteDatabase(ContentResolver resolver, String query) { /**
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, * 格式化便签摘要
new String[]{NoteColumns.ID}, * @param snippet 便签摘要
Notes.DataColumns.CONTENT + " LIKE'%" + query +"%'", * @return 格式化后的便签摘要
null, */
null); public static String getFormattedSnippet(String snippet) {
return cursor; if (snippet != null) {
snippet = snippet.trim();
int index = snippet.indexOf('\n');
if (index != -1) {
snippet = snippet.substring(0, index);
}
} }
return snippet;
}
/**
* 在数据库中搜索包含指定查询内容的便签
* @param resolver ContentResolver对象
* @param query 查询内容
* @return 包含查询结果的Cursor对象
*/
public static Cursor searchInNoteDatabase(ContentResolver resolver, String query) {
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
new String[]{NoteColumns.ID},
Notes.DataColumns.CONTENT + " LIKE'%" + query +"%'",
null,
null);
return cursor;
} }

3
src/java/net/micode/notes/tool/GTaskStringUtils.java
Unescape View File

@ -16,6 +16,7 @@
package net.micode.notes.tool; package net.micode.notes.tool;
// 该类用于定义 Google 任务相关的 JSON 字段常量
public class GTaskStringUtils { public class GTaskStringUtils {
public final static String GTASK_JSON_ACTION_ID = "action_id"; public final static String GTASK_JSON_ACTION_ID = "action_id";
@ -110,4 +111,4 @@ public class GTaskStringUtils {
public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE"; public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE";
} }

19
src/java/net/micode/notes/tool/ResourceParser.java
Unescape View File

@ -22,6 +22,7 @@ import android.preference.PreferenceManager;
import net.micode.notes.R; import net.micode.notes.R;
import net.micode.notes.ui.NotesPreferenceActivity; import net.micode.notes.ui.NotesPreferenceActivity;
// 资源解析器类
public class ResourceParser { public class ResourceParser {
public static final int YELLOW = 0; public static final int YELLOW = 0;
@ -40,6 +41,7 @@ public class ResourceParser {
public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM; public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;
// 备忘录背景资源类
public static class NoteBgResources { public static class NoteBgResources {
private final static int [] BG_EDIT_RESOURCES = new int [] { private final static int [] BG_EDIT_RESOURCES = new int [] {
R.drawable.edit_yellow, R.drawable.edit_yellow,
@ -57,15 +59,18 @@ public class ResourceParser {
R.drawable.edit_title_red R.drawable.edit_title_red
}; };
// 获取备忘录背景资源
public static int getNoteBgResource(int id) { public static int getNoteBgResource(int id) {
return BG_EDIT_RESOURCES[id]; return BG_EDIT_RESOURCES[id];
} }
// 获取备忘录标题背景资源
public static int getNoteTitleBgResource(int id) { public static int getNoteTitleBgResource(int id) {
return BG_EDIT_TITLE_RESOURCES[id]; return BG_EDIT_TITLE_RESOURCES[id];
} }
} }
// 获取默认背景ID
public static int getDefaultBgId(Context context) { public static int getDefaultBgId(Context context) {
if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean( if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) { NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
@ -75,6 +80,7 @@ public class ResourceParser {
} }
} }
// 备忘录项目背景资源类
public static class NoteItemBgResources { public static class NoteItemBgResources {
private final static int [] BG_FIRST_RESOURCES = new int [] { private final static int [] BG_FIRST_RESOURCES = new int [] {
R.drawable.list_yellow_up, R.drawable.list_yellow_up,
@ -108,27 +114,33 @@ public class ResourceParser {
R.drawable.list_red_single R.drawable.list_red_single
}; };
// 获取备忘录第一个背景资源
public static int getNoteBgFirstRes(int id) { public static int getNoteBgFirstRes(int id) {
return BG_FIRST_RESOURCES[id]; return BG_FIRST_RESOURCES[id];
} }
// 获取备忘录最后一个背景资源
public static int getNoteBgLastRes(int id) { public static int getNoteBgLastRes(int id) {
return BG_LAST_RESOURCES[id]; return BG_LAST_RESOURCES[id];
} }
// 获取备忘录单独背景资源
public static int getNoteBgSingleRes(int id) { public static int getNoteBgSingleRes(int id) {
return BG_SINGLE_RESOURCES[id]; return BG_SINGLE_RESOURCES[id];
} }
// 获取备忘录正常背景资源
public static int getNoteBgNormalRes(int id) { public static int getNoteBgNormalRes(int id) {
return BG_NORMAL_RESOURCES[id]; return BG_NORMAL_RESOURCES[id];
} }
// 获取文件夹背景资源
public static int getFolderBgRes() { public static int getFolderBgRes() {
return R.drawable.list_folder; return R.drawable.list_folder;
} }
} }
// 小部件背景资源类
public static class WidgetBgResources { public static class WidgetBgResources {
private final static int [] BG_2X_RESOURCES = new int [] { private final static int [] BG_2X_RESOURCES = new int [] {
R.drawable.widget_2x_yellow, R.drawable.widget_2x_yellow,
@ -138,6 +150,7 @@ public class ResourceParser {
R.drawable.widget_2x_red, R.drawable.widget_2x_red,
}; };
// 获取2x小部件背景资源
public static int getWidget2xBgResource(int id) { public static int getWidget2xBgResource(int id) {
return BG_2X_RESOURCES[id]; return BG_2X_RESOURCES[id];
} }
@ -150,11 +163,13 @@ public class ResourceParser {
R.drawable.widget_4x_red R.drawable.widget_4x_red
}; };
// 获取4x小部件背景资源
public static int getWidget4xBgResource(int id) { public static int getWidget4xBgResource(int id) {
return BG_4X_RESOURCES[id]; return BG_4X_RESOURCES[id];
} }
} }
// 文本外观资源类
public static class TextAppearanceResources { public static class TextAppearanceResources {
private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] { private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] {
R.style.TextAppearanceNormal, R.style.TextAppearanceNormal,
@ -163,6 +178,7 @@ public class ResourceParser {
R.style.TextAppearanceSuper R.style.TextAppearanceSuper
}; };
// 获取文本外观资源
public static int getTexAppearanceResource(int id) { public static int getTexAppearanceResource(int id) {
/** /**
* HACKME: Fix bug of store the resource id in shared preference. * HACKME: Fix bug of store the resource id in shared preference.
@ -175,8 +191,9 @@ public class ResourceParser {
return TEXTAPPEARANCE_RESOURCES[id]; return TEXTAPPEARANCE_RESOURCES[id];
} }
// 获取资源大小
public static int getResourcesSize() { public static int getResourcesSize() {
return TEXTAPPEARANCE_RESOURCES.length; return TEXTAPPEARANCE_RESOURCES.length;
} }
} }
} }

113
src/java/net/micode/notes/ui/AlarmAlertActivity.java
Unescape View File

@ -14,6 +14,7 @@
* limitations under the License. * limitations under the License.
*/ */
// 导入必要的类和接口
package net.micode.notes.ui; package net.micode.notes.ui;
import android.app.Activity; import android.app.Activity;
@ -39,78 +40,85 @@ import net.micode.notes.tool.DataUtils;
import java.io.IOException; import java.io.IOException;
// AlarmAlertActivity类，继承自Activity，实现OnClickListener和OnDismissListener接口
public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
private long mNoteId; private long mNoteId; //文本在数据库存储中的ID号
private String mSnippet; private String mSnippet; //闹钟提示时出现的文本片段
private static final int SNIPPET_PREW_MAX_LEN = 60; private static final int SNIPPET_PREW_MAX_LEN = 60;
MediaPlayer mPlayer; MediaPlayer mPlayer;
@Override @Override
/** protected void onCreate(Bundle savedInstanceState) {
* @Method onCreate
* @Date 2024/12/25 8:15
* @param savedInstanceState
* @Author lenovo
* @Return void
* @Description
*/
protected void onCreate(Bundle savedInstanceState) {
/**
* Bundel 类似于 map，key-value存储
* super 代表父类, 调用 onCreate 用于恢复上次结束的状态
* lenovo 2024/12/25 8:39
*/
super.onCreate(savedInstanceState); super.onCreate(savedInstanceState);
//Bundle类型的数据与Map类型的数据相似，都是以key-value的形式存储数据的
//onsaveInstanceState方法是用来保存Activity的状态的
//能从onCreate的参数savedInsanceState中获得状态数据
requestWindowFeature(Window.FEATURE_NO_TITLE); requestWindowFeature(Window.FEATURE_NO_TITLE);
//界面显示——无标题
final Window win = getWindow(); final Window win = getWindow();
// 在屏幕锁定时显示
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
// 锁屏时到闹钟提示时间后，点亮屏幕
if (!isScreenOn()) { if (!isScreenOn()) {
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
//保持窗体点亮
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
//将窗体点亮
| WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
//允许窗体点亮时锁屏
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
} }//在手机锁屏后如果到了闹钟提示时间，点亮屏幕
Intent intent = getIntent(); Intent intent = getIntent();
try { try {
mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
// 超出长度则变为 substr + "..." //根据ID从数据库中获取标签的内容；
//getContentResolver（）是实现数据共享，实例存储。
mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
: mSnippet; : mSnippet;
//判断标签片段是否达到符合长度
} catch (IllegalArgumentException e) { } catch (IllegalArgumentException e) {
e.printStackTrace(); e.printStackTrace();
return; return;
} }
/*
try
{
// 代码区
}
catch(Exception e)
{
// 异常处理
}
代码区如果有错误，就会返回所写异常的处理。*/
mPlayer = new MediaPlayer(); mPlayer = new MediaPlayer();
// 查找数据库中有没有 mNoteId 的便签, 如果有则激发对话框 + 闹钟提示音
if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
showActionDialog(); showActionDialog();
//弹出对话框
playAlarmSound(); playAlarmSound();
//闹钟提示音激发
} else { } else {
finish(); finish();
//完成闹钟动作
} }
} }
private boolean isScreenOn() { private boolean isScreenOn() {
//判断屏幕是否锁屏，调用系统函数判断，最后返回值是布尔类型
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
return pm.isScreenOn(); return pm.isScreenOn();
} }
private void playAlarmSound() { private void playAlarmSound() {
//闹钟提示音激发
Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
//调用系统的铃声管理URI，得到闹钟提示音
int silentModeStreams = Settings.System.getInt(getContentResolver(), int silentModeStreams = Settings.System.getInt(getContentResolver(),
Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
mPlayer.setAudioStreamType(silentModeStreams); mPlayer.setAudioStreamType(silentModeStreams);
} else { } else {
@ -118,12 +126,19 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
} }
try { try {
mPlayer.setDataSource(this, url); mPlayer.setDataSource(this, url);
//方法：setDataSource(Context context, Uri uri)
//解释：无返回值，设置多媒体数据来源【根据 Uri】
mPlayer.prepare(); mPlayer.prepare();
//准备同步
mPlayer.setLooping(true); mPlayer.setLooping(true);
//设置是否循环播放
mPlayer.start(); mPlayer.start();
//开始播放
} catch (IllegalArgumentException e) { } catch (IllegalArgumentException e) {
// TODO Auto-generated catch block // TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
//e.printStackTrace()函数功能是抛出异常， 还将显示出更深的调用信息
//System.out.println(e)，这个方法打印出异常，并且输出在哪里出现的异常
} catch (SecurityException e) { } catch (SecurityException e) {
// TODO Auto-generated catch block // TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
@ -135,41 +150,61 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
e.printStackTrace(); e.printStackTrace();
} }
} }
private void showActionDialog() {// TODO: 2024/1/2 可以模仿这个，写一个xxx条件下弹出来的Dialog private void showActionDialog() {
AlertDialog.Builder dialog = new AlertDialog.Builder(this); AlertDialog.Builder dialog = new AlertDialog.Builder(this);
//AlertDialog的构造方法全部是Protected的
//所以不能直接通过new一个AlertDialog来创建出一个AlertDialog。
//要创建一个AlertDialog，就要用到AlertDialog.Builder中的create()方法
//如这里的dialog就是新建了一个AlertDialog
dialog.setTitle(R.string.app_name); dialog.setTitle(R.string.app_name);
//为对话框设置标题
dialog.setMessage(mSnippet); dialog.setMessage(mSnippet);
//为对话框设置内容
dialog.setPositiveButton(R.string.notealert_ok, this); dialog.setPositiveButton(R.string.notealert_ok, this);
//给对话框添加"Yes"按钮
if (isScreenOn()) { if (isScreenOn()) {
dialog.setNegativeButton(R.string.notealert_enter, this); dialog.setNegativeButton(R.string.notealert_enter, this);
} }//对话框添加"No"按钮
dialog.show().setOnDismissListener(this); dialog.show().setOnDismissListener(this);
} }
public void onClick(DialogInterface dialog, int which) { public void onClick(DialogInterface dialog, int which) {
switch (which) { switch (which) {
//用which来选择click后下一步的操作
case DialogInterface.BUTTON_NEGATIVE: case DialogInterface.BUTTON_NEGATIVE:
//这是取消操作
Intent intent = new Intent(this, NoteEditActivity.class); Intent intent = new Intent(this, NoteEditActivity.class);
//实现两个类间的数据传输
intent.setAction(Intent.ACTION_VIEW); intent.setAction(Intent.ACTION_VIEW);
//设置动作属性
intent.putExtra(Intent.EXTRA_UID, mNoteId); intent.putExtra(Intent.EXTRA_UID, mNoteId);
//实现key-value对
//EXTRA_UID为key；mNoteId为键
startActivity(intent); startActivity(intent);
//开始动作
break; break;
default: default:
//这是确定操作
break; break;
} }
} }
public void onDismiss(DialogInterface dialog) { public void onDismiss(DialogInterface dialog) {
//忽略
stopAlarmSound(); stopAlarmSound();
//停止闹钟声音
finish(); finish();
//完成该动作
} }
private void stopAlarmSound() { private void stopAlarmSound() {
if (mPlayer != null) { if (mPlayer != null) {
mPlayer.stop(); mPlayer.stop();
//停止播放
mPlayer.release(); mPlayer.release();
//释放MediaPlayer对象
mPlayer = null; mPlayer = null;
} }
} }
} }

42
src/java/net/micode/notes/ui/AlarmInitReceiver.java
Unescape View File

@ -30,36 +30,60 @@ import net.micode.notes.data.Notes.NoteColumns;
public class AlarmInitReceiver extends BroadcastReceiver { public class AlarmInitReceiver extends BroadcastReceiver {
// 定义查询数据库时要获取的列
private static final String [] PROJECTION = new String [] { private static final String [] PROJECTION = new String [] {
NoteColumns.ID, NoteColumns.ID, // 笔记的ID
NoteColumns.ALERTED_DATE NoteColumns.ALERTED_DATE // 笔记的提醒日期
}; };
// 定义列的索引，以便在Cursor中快速访问
private static final int COLUMN_ID = 0; private static final int COLUMN_ID = 0;
private static final int COLUMN_ALERTED_DATE = 1; private static final int COLUMN_ALERTED_DATE = 1;
@Override @Override
public void onReceive(Context context, Intent intent) { public void onReceive(Context context, Intent intent) {
long currentDate = System.currentTimeMillis(); long currentDate = System.currentTimeMillis(); // 获取当前的系统时间（毫秒）
// 从内容提供者中查询需要提醒的笔记
// Notes.CONTENT_NOTE_URI 是内容提供者的URI
// PROJECTION 指定了要查询的列
// 查询条件是提醒日期大于当前日期，且笔记类型为普通笔记（Notes.TYPE_NOTE）
Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
PROJECTION, PROJECTION,
NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
new String[] { String.valueOf(currentDate) }, new String[] { String.valueOf(currentDate) }, // 查询参数，这里只有当前日期
null); null); // 不需要排序
// 检查Cursor是否为null
if (c != null) { if (c != null) {
// 如果Cursor不为空，移动到第一条记录
if (c.moveToFirst()) { if (c.moveToFirst()) {
// 开始遍历Cursor中的所有记录
do { do {
// 获取当前笔记的提醒日期
long alertDate = c.getLong(COLUMN_ALERTED_DATE); long alertDate = c.getLong(COLUMN_ALERTED_DATE);
// 创建一个Intent，目标组件是AlarmReceiver
Intent sender = new Intent(context, AlarmReceiver.class); Intent sender = new Intent(context, AlarmReceiver.class);
// 为Intent设置数据URI，这里使用ContentUris.withAppendedId方法将笔记ID附加到Notes的内容URI上
sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID))); sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID)));
// 创建一个PendingIntent，这里使用getBroadcast方法，因为AlarmReceiver是一个BroadcastReceiver
// 注意：这里使用的请求码（第二个参数）为0，这可能导致如果有多个相同的Intent被发送时，PendingIntent会被覆盖
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0); PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0);
AlarmManager alermManager = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE); // 获取AlarmManager服务
AlarmManager alermManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
// 设置一个闹钟，当到达提醒日期时，触发PendingIntent（即发送广播给AlarmReceiver）
// AlarmManager.RTC_WAKEUP表示在指定时间唤醒设备并发送广播
alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent); alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);
} while (c.moveToNext());
} while (c.moveToNext()); // 移动到下一条记录，继续循环
} }
// 关闭Cursor
c.close(); c.close();
} }
} }
} }

21
src/java/net/micode/notes/ui/AlarmReceiver.java
Unescape View File

@ -14,17 +14,30 @@
* limitations under the License. * limitations under the License.
*/ */
// 指定类所在的包名
package net.micode.notes.ui; package net.micode.notes.ui;
import android.content.BroadcastReceiver; // 导入所需的类
import android.content.Context; import android.content.BroadcastReceiver; // 广播接收器基类
import android.content.Intent; import android.content.Context; // 提供应用环境信息的类
import android.content.Intent; // 用于组件间通信的消息传递对象
// 定义一个公开类AlarmReceiver，它继承自BroadcastReceiver
public class AlarmReceiver extends BroadcastReceiver { public class AlarmReceiver extends BroadcastReceiver {
// 重写onReceive方法，当接收到广播时调用此方法
@Override @Override
public void onReceive(Context context, Intent intent) { public void onReceive(Context context, Intent intent) {
// 设置intent的目标组件为AlarmAlertActivity类
// 这意味着当这个广播接收器接收到广播时，它希望启动AlarmAlertActivity活动
intent.setClass(context, AlarmAlertActivity.class); intent.setClass(context, AlarmAlertActivity.class);
// 为intent添加FLAG_ACTIVITY_NEW_TASK标志
// 这通常用于从非活动上下文中启动活动时，确保活动作为新的任务启动
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// 使用context对象调用startActivity方法来启动由intent指定的活动
// 由于intent已经被设置为启动AlarmAlertActivity，这行代码的作用就是启动AlarmAlertActivity活动
context.startActivity(intent); context.startActivity(intent);
} }
} }

159
src/java/net/micode/notes/ui/DateTimePicker.java
Unescape View File

@ -14,8 +14,10 @@
* limitations under the License. * limitations under the License.
*/ */
// 指定类所在的包名
package net.micode.notes.ui; package net.micode.notes.ui;
// 导入所需的Java和Android类
import java.text.DateFormatSymbols; import java.text.DateFormatSymbols;
import java.util.Calendar; import java.util.Calendar;
@ -27,11 +29,13 @@ import android.text.format.DateFormat;
import android.view.View; import android.view.View;
import android.widget.FrameLayout; import android.widget.FrameLayout;
import android.widget.NumberPicker; import android.widget.NumberPicker;
// 定义一个名为DateTimePicker的类，它继承自FrameLayout
public class DateTimePicker extends FrameLayout { public class DateTimePicker extends FrameLayout {
//FrameLayout是布局模板之一
//所有的子元素全部在屏幕的右上方
private static final boolean DEFAULT_ENABLE_STATE = true; private static final boolean DEFAULT_ENABLE_STATE = true;
private static final int HOURS_IN_HALF_DAY = 12; private static final int HOURS_IN_HALF_DAY = 12;
private static final int HOURS_IN_ALL_DAY = 24; private static final int HOURS_IN_ALL_DAY = 24;
private static final int DAYS_IN_ALL_WEEK = 7; private static final int DAYS_IN_ALL_WEEK = 7;
@ -45,25 +49,27 @@ public class DateTimePicker extends FrameLayout {
private static final int MINUT_SPINNER_MAX_VAL = 59; private static final int MINUT_SPINNER_MAX_VAL = 59;
private static final int AMPM_SPINNER_MIN_VAL = 0; private static final int AMPM_SPINNER_MIN_VAL = 0;
private static final int AMPM_SPINNER_MAX_VAL = 1; private static final int AMPM_SPINNER_MAX_VAL = 1;
//初始化控件
private final NumberPicker mDateSpinner; private final NumberPicker mDateSpinner;
private final NumberPicker mHourSpinner; private final NumberPicker mHourSpinner;
private final NumberPicker mMinuteSpinner; private final NumberPicker mMinuteSpinner;
private final NumberPicker mAmPmSpinner; private final NumberPicker mAmPmSpinner;
//NumberPicker是数字选择器
//这里定义的四个变量全部是在设置闹钟时需要选择的变量（如日期、时、分、上午或者下午）
private Calendar mDate; private Calendar mDate;
//定义了Calendar类型的变量mDate，用于操作时间
private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
private boolean mIsAm; private boolean mIsAm;
private boolean mIs24HourView; private boolean mIs24HourView;
private boolean mIsEnabled = DEFAULT_ENABLE_STATE; private boolean mIsEnabled = DEFAULT_ENABLE_STATE;
private boolean mInitialising; private boolean mInitialising;
private OnDateTimeChangedListener mOnDateTimeChangedListener; private OnDateTimeChangedListener mOnDateTimeChangedListener;
private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() { private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
@Override @Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) { public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
@ -71,41 +77,49 @@ public class DateTimePicker extends FrameLayout {
updateDateControl(); updateDateControl();
onDateTimeChanged(); onDateTimeChanged();
} }
}; };//OnValueChangeListener，这是时间改变监听器，这里主要是对日期的监听
//将现在日期的值传递给mDate；updateDateControl是同步操作
private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() { private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
@Override //这里是对 小时（Hour） 的监听
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) { public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
boolean isDateChanged = false; boolean isDateChanged = false;
Calendar cal = Calendar.getInstance(); Calendar cal = Calendar.getInstance();
//声明一个Calendar的变量cal，便于后续的操作
if (!mIs24HourView) { if (!mIs24HourView) {
if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) { if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, 1); cal.add(Calendar.DAY_OF_YEAR, 1);
isDateChanged = true; isDateChanged = true;
//这里是对于12小时制时，晚上11点和12点交替时对日期的更改
} else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, -1); cal.add(Calendar.DAY_OF_YEAR, -1);
isDateChanged = true; isDateChanged = true;
} }
//这里是对于12小时制时，凌晨11点和12点交替时对日期的更改
if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY || if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
mIsAm = !mIsAm; mIsAm = !mIsAm;
updateAmPmControl(); updateAmPmControl();
} }//这里是对于12小时制时，中午11点和12点交替时对AM和PM的更改
} else { } else {
if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) { if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, 1); cal.add(Calendar.DAY_OF_YEAR, 1);
isDateChanged = true; isDateChanged = true;
//这里是对于24小时制时，晚上11点和12点交替时对日期的更改
} else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) { } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, -1); cal.add(Calendar.DAY_OF_YEAR, -1);
isDateChanged = true; isDateChanged = true;
} }
} } //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改
int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY); int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
//通过数字选择器对newHour的赋值
mDate.set(Calendar.HOUR_OF_DAY, newHour); mDate.set(Calendar.HOUR_OF_DAY, newHour);
//通过set函数将新的Hour值传给mDate
onDateTimeChanged(); onDateTimeChanged();
if (isDateChanged) { if (isDateChanged) {
setCurrentYear(cal.get(Calendar.YEAR)); setCurrentYear(cal.get(Calendar.YEAR));
@ -114,18 +128,22 @@ public class DateTimePicker extends FrameLayout {
} }
} }
}; };
private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() { private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
@Override @Override
//这里是对 分钟（Minute）改变的监听
public void onValueChange(NumberPicker picker, int oldVal, int newVal) { public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
int minValue = mMinuteSpinner.getMinValue(); int minValue = mMinuteSpinner.getMinValue();
int maxValue = mMinuteSpinner.getMaxValue(); int maxValue = mMinuteSpinner.getMaxValue();
int offset = 0; int offset = 0;
//设置offset，作为小时改变的一个记录数据
if (oldVal == maxValue && newVal == minValue) { if (oldVal == maxValue && newVal == minValue) {
offset += 1; offset += 1;
} else if (oldVal == minValue && newVal == maxValue) { } else if (oldVal == minValue && newVal == maxValue) {
offset -= 1; offset -= 1;
} }
//如果原值为59，新值为0，则offset加1
//如果原值为0，新值为59，则offset减1
if (offset != 0) { if (offset != 0) {
mDate.add(Calendar.HOUR_OF_DAY, offset); mDate.add(Calendar.HOUR_OF_DAY, offset);
mHourSpinner.setValue(getCurrentHour()); mHourSpinner.setValue(getCurrentHour());
@ -143,9 +161,10 @@ public class DateTimePicker extends FrameLayout {
onDateTimeChanged(); onDateTimeChanged();
} }
}; };
private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() { private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
@Override //对AM和PM的监听
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) { public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
mIsAm = !mIsAm; mIsAm = !mIsAm;
if (mIsAm) { if (mIsAm) {
@ -157,63 +176,66 @@ public class DateTimePicker extends FrameLayout {
onDateTimeChanged(); onDateTimeChanged();
} }
}; };
public interface OnDateTimeChangedListener { public interface OnDateTimeChangedListener {
void onDateTimeChanged(DateTimePicker view, int year, int month, void onDateTimeChanged(DateTimePicker view, int year, int month,
int dayOfMonth, int hourOfDay, int minute); int dayOfMonth, int hourOfDay, int minute);
} }
public DateTimePicker(Context context) { public DateTimePicker(Context context) {
this(context, System.currentTimeMillis()); this(context, System.currentTimeMillis());
} }//通过对数据库的访问，获取当前的系统时间
public DateTimePicker(Context context, long date) { public DateTimePicker(Context context, long date) {
this(context, date, DateFormat.is24HourFormat(context)); this(context, date, DateFormat.is24HourFormat(context));
} }//上面函数的得到的是一个天文数字（1970至今的秒数），需要DateFormat将其变得有意义
public DateTimePicker(Context context, long date, boolean is24HourView) { public DateTimePicker(Context context, long date, boolean is24HourView) {
super(context); super(context);
//获取系统时间
mDate = Calendar.getInstance(); mDate = Calendar.getInstance();
mInitialising = true; mInitialising = true;
mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY; mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
inflate(context, R.layout.datetime_picker, this); inflate(context, R.layout.datetime_picker, this);
//如果当前Activity里用到别的layout，比如对话框layout
//还要设置这个layout上的其他组件的内容，就必须用inflate()方法先将对话框的layout找出来
//然后再用findViewById()找到它上面的其它组件
mDateSpinner = (NumberPicker) findViewById(R.id.date); mDateSpinner = (NumberPicker) findViewById(R.id.date);
mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL); mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);
mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL); mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);
mDateSpinner.setOnValueChangedListener(mOnDateChangedListener); mDateSpinner.setOnValueChangedListener(mOnDateChangedListener);
mHourSpinner = (NumberPicker) findViewById(R.id.hour); mHourSpinner = (NumberPicker) findViewById(R.id.hour);
mHourSpinner.setOnValueChangedListener(mOnHourChangedListener); mHourSpinner.setOnValueChangedListener(mOnHourChangedListener);
mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); mMinuteSpinner = (NumberPicker) findViewById(R.id.minute);
mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL); mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL);
mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL); mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL);
mMinuteSpinner.setOnLongPressUpdateInterval(100); mMinuteSpinner.setOnLongPressUpdateInterval(100);
mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener); mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener);
String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings(); String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();
mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm); mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);
mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL); mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL); mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL);
mAmPmSpinner.setDisplayedValues(stringsForAmPm); mAmPmSpinner.setDisplayedValues(stringsForAmPm);
mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener); mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
// update controls to initial state // update controls to initial state
updateDateControl(); updateDateControl();
updateHourControl(); updateHourControl();
updateAmPmControl(); updateAmPmControl();
set24HourView(is24HourView); set24HourView(is24HourView);
// set to current time // set to current time
setCurrentDate(date); setCurrentDate(date);
setEnabled(isEnabled()); setEnabled(isEnabled());
// set the content descriptions // set the content descriptions
mInitialising = false; mInitialising = false;
} }
@Override @Override
public void setEnabled(boolean enabled) { public void setEnabled(boolean enabled) {
if (mIsEnabled == enabled) { if (mIsEnabled == enabled) {
@ -226,12 +248,14 @@ public class DateTimePicker extends FrameLayout {
mAmPmSpinner.setEnabled(enabled); mAmPmSpinner.setEnabled(enabled);
mIsEnabled = enabled; mIsEnabled = enabled;
} }
//存在疑问！！！！！！！！！！！！！setEnabled的作用
//下面的代码通过原程序的注释已经比较清晰，另外可以通过函数名来判断
//下面的各函数主要是对上面代码引用到的各函数功能的实现
@Override @Override
public boolean isEnabled() { public boolean isEnabled() {
return mIsEnabled; return mIsEnabled;
} }
/** /**
* Get the current date in millis * Get the current date in millis
* *
@ -239,8 +263,8 @@ public class DateTimePicker extends FrameLayout {
*/ */
public long getCurrentDateInTimeMillis() { public long getCurrentDateInTimeMillis() {
return mDate.getTimeInMillis(); return mDate.getTimeInMillis();
} }//实现函数——得到当前的秒数
/** /**
* Set the current date * Set the current date
* *
@ -251,8 +275,8 @@ public class DateTimePicker extends FrameLayout {
cal.setTimeInMillis(date); cal.setTimeInMillis(date);
setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), 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)); cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
} }//实现函数功能——设置当前的时间，参数是date
/** /**
* Set the current date * Set the current date
* *
@ -269,17 +293,18 @@ public class DateTimePicker extends FrameLayout {
setCurrentDay(dayOfMonth); setCurrentDay(dayOfMonth);
setCurrentHour(hourOfDay); setCurrentHour(hourOfDay);
setCurrentMinute(minute); setCurrentMinute(minute);
} }//实现函数功能——设置当前的时间，参数是各详细的变量
/** /**
* Get current year * Get current year
* *
* @return The current year * @return The current year
*/ */
//下面是得到year、month、day等值
public int getCurrentYear() { public int getCurrentYear() {
return mDate.get(Calendar.YEAR); return mDate.get(Calendar.YEAR);
} }
/** /**
* Set current year * Set current year
* *
@ -293,7 +318,7 @@ public class DateTimePicker extends FrameLayout {
updateDateControl(); updateDateControl();
onDateTimeChanged(); onDateTimeChanged();
} }
/** /**
* Get current month in the year * Get current month in the year
* *
@ -302,7 +327,7 @@ public class DateTimePicker extends FrameLayout {
public int getCurrentMonth() { public int getCurrentMonth() {
return mDate.get(Calendar.MONTH); return mDate.get(Calendar.MONTH);
} }
/** /**
* Set current month in the year * Set current month in the year
* *
@ -316,7 +341,7 @@ public class DateTimePicker extends FrameLayout {
updateDateControl(); updateDateControl();
onDateTimeChanged(); onDateTimeChanged();
} }
/** /**
* Get current day of the month * Get current day of the month
* *
@ -325,7 +350,7 @@ public class DateTimePicker extends FrameLayout {
public int getCurrentDay() { public int getCurrentDay() {
return mDate.get(Calendar.DAY_OF_MONTH); return mDate.get(Calendar.DAY_OF_MONTH);
} }
/** /**
* Set current day of the month * Set current day of the month
* *
@ -339,7 +364,7 @@ public class DateTimePicker extends FrameLayout {
updateDateControl(); updateDateControl();
onDateTimeChanged(); onDateTimeChanged();
} }
/** /**
* Get current hour in 24 hour mode, in the range (0~23) * Get current hour in 24 hour mode, in the range (0~23)
* @return The current hour in 24 hour mode * @return The current hour in 24 hour mode
@ -347,7 +372,7 @@ public class DateTimePicker extends FrameLayout {
public int getCurrentHourOfDay() { public int getCurrentHourOfDay() {
return mDate.get(Calendar.HOUR_OF_DAY); return mDate.get(Calendar.HOUR_OF_DAY);
} }
private int getCurrentHour() { private int getCurrentHour() {
if (mIs24HourView){ if (mIs24HourView){
return getCurrentHourOfDay(); return getCurrentHourOfDay();
@ -360,7 +385,7 @@ public class DateTimePicker extends FrameLayout {
} }
} }
} }
/** /**
* Set current hour in 24 hour mode, in the range (0~23) * Set current hour in 24 hour mode, in the range (0~23)
* *
@ -388,7 +413,7 @@ public class DateTimePicker extends FrameLayout {
mHourSpinner.setValue(hourOfDay); mHourSpinner.setValue(hourOfDay);
onDateTimeChanged(); onDateTimeChanged();
} }
/** /**
* Get currentMinute * Get currentMinute
* *
@ -397,7 +422,7 @@ public class DateTimePicker extends FrameLayout {
public int getCurrentMinute() { public int getCurrentMinute() {
return mDate.get(Calendar.MINUTE); return mDate.get(Calendar.MINUTE);
} }
/** /**
* Set current minute * Set current minute
*/ */
@ -409,14 +434,14 @@ public class DateTimePicker extends FrameLayout {
mDate.set(Calendar.MINUTE, minute); mDate.set(Calendar.MINUTE, minute);
onDateTimeChanged(); onDateTimeChanged();
} }
/** /**
* @return true if this is in 24 hour view else false. * @return true if this is in 24 hour view else false.
*/ */
public boolean is24HourView () { public boolean is24HourView () {
return mIs24HourView; return mIs24HourView;
} }
/** /**
* Set whether in 24 hour or AM/PM mode. * Set whether in 24 hour or AM/PM mode.
* *
@ -433,7 +458,7 @@ public class DateTimePicker extends FrameLayout {
setCurrentHour(hour); setCurrentHour(hour);
updateAmPmControl(); updateAmPmControl();
} }
private void updateDateControl() { private void updateDateControl() {
Calendar cal = Calendar.getInstance(); Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(mDate.getTimeInMillis()); cal.setTimeInMillis(mDate.getTimeInMillis());
@ -446,8 +471,8 @@ public class DateTimePicker extends FrameLayout {
mDateSpinner.setDisplayedValues(mDateDisplayValues); mDateSpinner.setDisplayedValues(mDateDisplayValues);
mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2); mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2);
mDateSpinner.invalidate(); mDateSpinner.invalidate();
} }// 对于星期几的算法
private void updateAmPmControl() { private void updateAmPmControl() {
if (mIs24HourView) { if (mIs24HourView) {
mAmPmSpinner.setVisibility(View.GONE); mAmPmSpinner.setVisibility(View.GONE);
@ -455,9 +480,9 @@ public class DateTimePicker extends FrameLayout {
int index = mIsAm ? Calendar.AM : Calendar.PM; int index = mIsAm ? Calendar.AM : Calendar.PM;
mAmPmSpinner.setValue(index); mAmPmSpinner.setValue(index);
mAmPmSpinner.setVisibility(View.VISIBLE); mAmPmSpinner.setVisibility(View.VISIBLE);
} }// 对于上下午操作的算法
} }
private void updateHourControl() { private void updateHourControl() {
if (mIs24HourView) { if (mIs24HourView) {
mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW); mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);
@ -465,9 +490,9 @@ public class DateTimePicker extends FrameLayout {
} else { } else {
mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW); mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW);
mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW); mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW);
} }// 对与小时的算法
} }
/** /**
* Set the callback that indicates the 'Set' button has been pressed. * Set the callback that indicates the 'Set' button has been pressed.
* @param callback the callback, if null will do nothing * @param callback the callback, if null will do nothing
@ -475,11 +500,11 @@ public class DateTimePicker extends FrameLayout {
public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) { public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) {
mOnDateTimeChangedListener = callback; mOnDateTimeChangedListener = callback;
} }
private void onDateTimeChanged() { private void onDateTimeChanged() {
if (mOnDateTimeChangedListener != null) { if (mOnDateTimeChangedListener != null) {
mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(), mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute()); getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
} }
} }
} }

158
src/java/net/micode/notes/ui/DateTimePickerDialog.java
Unescape View File

@ -14,77 +14,89 @@
* limitations under the License. * limitations under the License.
*/ */
package net.micode.notes.ui; package net.micode.notes.ui;
import java.util.Calendar; import java.util.Calendar;
import net.micode.notes.R; import net.micode.notes.R;
import net.micode.notes.ui.DateTimePicker; import net.micode.notes.ui.DateTimePicker;
import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener; import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener;
import android.app.AlertDialog; import android.app.AlertDialog;
import android.content.Context; import android.content.Context;
import android.content.DialogInterface; import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener; import android.content.DialogInterface.OnClickListener;
import android.text.format.DateFormat; import android.text.format.DateFormat;
import android.text.format.DateUtils; import android.text.format.DateUtils;
public class DateTimePickerDialog extends AlertDialog implements OnClickListener { public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
private Calendar mDate = Calendar.getInstance(); private Calendar mDate = Calendar.getInstance();
private boolean mIs24HourView; //创建一个Calendar类型的变量 mDate，方便时间的操作
private OnDateTimeSetListener mOnDateTimeSetListener; private boolean mIs24HourView;
private DateTimePicker mDateTimePicker; private OnDateTimeSetListener mOnDateTimeSetListener;
//声明一个时间日期滚动选择控件 mOnDateTimeSetListener
public interface OnDateTimeSetListener { private DateTimePicker mDateTimePicker;
void OnDateTimeSet(AlertDialog dialog, long date); //DateTimePicker控件，控件一般用于让用户可以从日期列表中选择单个值。
} //运行时，单击控件边上的下拉箭头，会显示为两个部分：一个下拉列表，一个用于选择日期的
public DateTimePickerDialog(Context context, long date) { public interface OnDateTimeSetListener {
super(context); void OnDateTimeSet(AlertDialog dialog, long date);
mDateTimePicker = new DateTimePicker(context); }
setView(mDateTimePicker);
mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() { public DateTimePickerDialog(Context context, long date) {
public void onDateTimeChanged(DateTimePicker view, int year, int month, //对该界面对话框的实例化
int dayOfMonth, int hourOfDay, int minute) { super(context);
mDate.set(Calendar.YEAR, year); //对数据库的操作
mDate.set(Calendar.MONTH, month); mDateTimePicker = new DateTimePicker(context);
mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); setView(mDateTimePicker);
mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); //添加一个子视图
mDate.set(Calendar.MINUTE, minute); mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
updateTitle(mDate.getTimeInMillis()); public void onDateTimeChanged(DateTimePicker view, int year, int month,
} int dayOfMonth, int hourOfDay, int minute) {
}); mDate.set(Calendar.YEAR, year);
mDate.setTimeInMillis(date); mDate.set(Calendar.MONTH, month);
mDate.set(Calendar.SECOND, 0); mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
setButton(context.getString(R.string.datetime_dialog_ok), this); mDate.set(Calendar.MINUTE, minute);
setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null); //将视图中的各选项设置为系统当前时间
set24HourView(DateFormat.is24HourFormat(this.getContext())); updateTitle(mDate.getTimeInMillis());
updateTitle(mDate.getTimeInMillis()); }
} });
mDate.setTimeInMillis(date);
public void set24HourView(boolean is24HourView) { //得到系统时间
mIs24HourView = is24HourView; mDate.set(Calendar.SECOND, 0);
} //将秒数设置为0
mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) { setButton(context.getString(R.string.datetime_dialog_ok), this);
mOnDateTimeSetListener = callBack; setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
} //设置按钮
set24HourView(DateFormat.is24HourFormat(this.getContext()));
private void updateTitle(long date) { //时间标准化打印
int flag = updateTitle(mDate.getTimeInMillis());
DateUtils.FORMAT_SHOW_YEAR | }
DateUtils.FORMAT_SHOW_DATE |
DateUtils.FORMAT_SHOW_TIME; public void set24HourView(boolean is24HourView) {
flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR; mIs24HourView = is24HourView;
setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); }
}
public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
public void onClick(DialogInterface arg0, int arg1) { mOnDateTimeSetListener = callBack;
if (mOnDateTimeSetListener != null) { }//将时间日期滚动选择控件实例化
mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
} 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));
}//android开发中常见日期管理工具类（API）——DateUtils：按照上下午显示时间
public void onClick(DialogInterface arg0, int arg1) {
if (mOnDateTimeSetListener != null) {
mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
}
}//第一个参数arg0是接收到点击事件的对话框
//第二个参数arg1是该对话框上的按钮
} }

26
src/java/net/micode/notes/ui/DropdownMenu.java
Unescape View File

@ -15,7 +15,7 @@
*/ */
package net.micode.notes.ui; package net.micode.notes.ui;
import android.content.Context; import android.content.Context;
import android.view.Menu; import android.view.Menu;
import android.view.MenuItem; import android.view.MenuItem;
@ -24,38 +24,42 @@ import android.view.View.OnClickListener;
import android.widget.Button; import android.widget.Button;
import android.widget.PopupMenu; import android.widget.PopupMenu;
import android.widget.PopupMenu.OnMenuItemClickListener; import android.widget.PopupMenu.OnMenuItemClickListener;
import net.micode.notes.R; import net.micode.notes.R;
public class DropdownMenu { public class DropdownMenu {
private Button mButton; private Button mButton;
private PopupMenu mPopupMenu; private PopupMenu mPopupMenu;
//声明一个下拉菜单
private Menu mMenu; private Menu mMenu;
public DropdownMenu(Context context, Button button, int menuId) { public DropdownMenu(Context context, Button button, int menuId) {
mButton = button; mButton = button;
mButton.setBackgroundResource(R.drawable.dropdown_icon); mButton.setBackgroundResource(R.drawable.dropdown_icon);
//设置这个view的背景
mPopupMenu = new PopupMenu(context, mButton); mPopupMenu = new PopupMenu(context, mButton);
mMenu = mPopupMenu.getMenu(); mMenu = mPopupMenu.getMenu();
mPopupMenu.getMenuInflater().inflate(menuId, mMenu); mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
//MenuInflater是用来实例化Menu目录下的Menu布局文件
//根据ID来确认menu的内容选项
mButton.setOnClickListener(new OnClickListener() { mButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) { public void onClick(View v) {
mPopupMenu.show(); mPopupMenu.show();
} }
}); });
} }
public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) { public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
if (mPopupMenu != null) { if (mPopupMenu != null) {
mPopupMenu.setOnMenuItemClickListener(listener); mPopupMenu.setOnMenuItemClickListener(listener);
} }//设置菜单的监听
} }
public MenuItem findItem(int id) { public MenuItem findItem(int id) {
return mMenu.findItem(id); return mMenu.findItem(id);
} }//对于菜单选项的初始化，根据索引搜索菜单需要的选项
public void setTitle(CharSequence title) { public void setTitle(CharSequence title) {
mButton.setText(title); mButton.setText(title);
} }//布局文件，设置标题
} }

135
src/java/net/micode/notes/ui/FoldersListAdapter.java
Unescape View File

@ -14,67 +14,74 @@
* limitations under the License. * limitations under the License.
*/ */
package net.micode.notes.ui; package net.micode.notes.ui;
import android.content.Context; import android.content.Context;
import android.database.Cursor; import android.database.Cursor;
import android.view.View; import android.view.View;
import android.view.ViewGroup; import android.view.ViewGroup;
import android.widget.CursorAdapter; import android.widget.CursorAdapter;
import android.widget.LinearLayout; import android.widget.LinearLayout;
import android.widget.TextView; import android.widget.TextView;
import net.micode.notes.R; import net.micode.notes.R;
import net.micode.notes.data.Notes; import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.data.Notes.NoteColumns;
public class FoldersListAdapter extends CursorAdapter { public class FoldersListAdapter extends CursorAdapter {
public static final String [] PROJECTION = { //CursorAdapter是Cursor和ListView的接口
NoteColumns.ID, //FoldersListAdapter继承了CursorAdapter的类
NoteColumns.SNIPPET //主要作用是便签数据库和用户的交互
}; //这里就是用folder（文件夹）的形式展现给用户
public static final String [] PROJECTION = {
public static final int ID_COLUMN = 0; NoteColumns.ID,
public static final int NAME_COLUMN = 1; NoteColumns.SNIPPET
};//调用数据库中便签的ID和片段
public FoldersListAdapter(Context context, Cursor c) {
super(context, c); public static final int ID_COLUMN = 0;
// TODO Auto-generated constructor stub public static final int NAME_COLUMN = 1;
}
public FoldersListAdapter(Context context, Cursor c) {
@Override super(context, c);
public View newView(Context context, Cursor cursor, ViewGroup parent) { // TODO Auto-generated constructor stub
return new FolderListItem(context); }//数据库操作
}
@Override
@Override public View newView(Context context, Cursor cursor, ViewGroup parent) {
public void bindView(View view, Context context, Cursor cursor) { //ViewGroup是容器
if (view instanceof FolderListItem) { return new FolderListItem(context);
String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context }//创建一个文件夹，对于各文件夹中子标签的初始化
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
((FolderListItem) view).bind(folderName); @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
public String getFolderName(Context context, int position) { .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
Cursor cursor = (Cursor) getItem(position); ((FolderListItem) view).bind(folderName);
return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context }
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); }//将各个布局文件绑定起来
}
public String getFolderName(Context context, int position) {
private class FolderListItem extends LinearLayout { Cursor cursor = (Cursor) getItem(position);
private TextView mName; return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
public FolderListItem(Context context) { }//根据数据库中标签的ID得到标签的各项内容
super(context);
inflate(context, R.layout.folder_list_item, this); private class FolderListItem extends LinearLayout {
mName = (TextView) findViewById(R.id.tv_folder_name); private TextView mName;
}
public FolderListItem(Context context) {
public void bind(String name) { super(context);
mName.setText(name); //操作数据库
} inflate(context, R.layout.folder_list_item, this);
} //根据布局文件的名字等信息将其找出来
mName = (TextView) findViewById(R.id.tv_folder_name);
} }
public void bind(String name) {
mName.setText(name);
}
}
}

479
src/java/net/micode/notes/ui/NoteEditText.java
Unescape View File

@ -14,212 +14,273 @@
* limitations under the License. * limitations under the License.
*/ */
package net.micode.notes.ui; package net.micode.notes.ui;
import android.content.Context; import android.content.Context;
import android.graphics.Rect; import android.graphics.Rect;
import android.text.Layout; import android.text.Layout;
import android.text.Selection; import android.text.Selection;
import android.text.Spanned; import android.text.Spanned;
import android.text.TextUtils; import android.text.TextUtils;
import android.text.style.URLSpan; import android.text.style.URLSpan;
import android.util.AttributeSet; import android.util.AttributeSet;
import android.util.Log; import android.util.Log;
import android.view.ContextMenu; import android.view.ContextMenu;
import android.view.KeyEvent; import android.view.KeyEvent;
import android.view.MenuItem; import android.view.MenuItem;
import android.view.MenuItem.OnMenuItemClickListener; import android.view.MenuItem.OnMenuItemClickListener;
import android.view.MotionEvent; import android.view.MotionEvent;
import android.widget.EditText; import android.widget.EditText;
import net.micode.notes.R; import net.micode.notes.R;
import java.util.HashMap; import java.util.HashMap;
import java.util.Map; import java.util.Map;
public class NoteEditText extends EditText { //继承edittext，设置便签设置文本框
private static final String TAG = "NoteEditText"; public class NoteEditText extends EditText {
private int mIndex; private static final String TAG = "NoteEditText";
private int mSelectionStartBeforeDelete; 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_TEL = "tel:" ;
private static final String SCHEME_EMAIL = "mailto:" ; private static final String SCHEME_HTTP = "http:" ;
private static final String SCHEME_EMAIL = "mailto:" ;
private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
static { ///建立一个字符和整数的hash表，用于链接电话，网站，还有邮箱
sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel); private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web); static {
sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email); 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 { * Call by the {@link NoteEditActivity} to delete or add edit text
/** */
* Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens //在NoteEditActivity中删除或添加文本的操作，可以看做是一个文本是否被变的标记，英文注释已说明的很清楚
* and the text is null public interface OnTextViewChangeListener {
*/ /**
void onEditTextDelete(int index, String text); * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
* and the text is null
/** */
* Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER} //处理删除按键时的操作
* happen void onEditTextDelete(int index, String text);
*/
void onEditTextEnter(int index, String text); /**
* Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
/** * happen
* Hide or show item option when text change */
*/ //处理进入按键时的操作
void onTextChange(int index, boolean hasText); void onEditTextEnter(int index, String text);
}
/**
private OnTextViewChangeListener mOnTextViewChangeListener; * Hide or show item option when text change
*/
public NoteEditText(Context context) { void onTextChange(int index, boolean hasText);
super(context, null); }
mIndex = 0;
} private OnTextViewChangeListener mOnTextViewChangeListener;
public void setIndex(int index) { //根据context设置文本
mIndex = index; public NoteEditText(Context context) {
} super(context, null);//用super引用父类变量
mIndex = 0;
public void setOnTextViewChangeListener(OnTextViewChangeListener listener) { }
mOnTextViewChangeListener = listener;
} //设置当前光标
public void setIndex(int index) {
public NoteEditText(Context context, AttributeSet attrs) { mIndex = index;
super(context, attrs, android.R.attr.editTextStyle); }
}
//初始化文本修改标记
public NoteEditText(Context context, AttributeSet attrs, int defStyle) { public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
super(context, attrs, defStyle); mOnTextViewChangeListener = listener;
// TODO Auto-generated constructor stub }
}
//AttributeSet 百度了一下是自定义空控件属性，用于维护便签动态变化的属性
@Override //初始化便签
public boolean onTouchEvent(MotionEvent event) { public NoteEditText(Context context, AttributeSet attrs) {
switch (event.getAction()) { super(context, attrs, android.R.attr.editTextStyle);
case MotionEvent.ACTION_DOWN: }
int x = (int) event.getX(); // 根据defstyle自动初始化
int y = (int) event.getY(); public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
x -= getTotalPaddingLeft(); super(context, attrs, defStyle);
y -= getTotalPaddingTop(); // TODO Auto-generated construct or stub
x += getScrollX(); }
y += getScrollY();
@Override
Layout layout = getLayout(); //view里的函数，处理手机屏幕的所有事件
int line = layout.getLineForVertical(y); /*参数event为手机屏幕触摸事件封装类的对象，其中封装了该事件的所有信息，
int off = layout.getOffsetForHorizontal(line, x); 例如触摸的位置、触摸的类型以及触摸的时间等。该对象会在用户触摸手机屏幕时被创建。*/
Selection.setSelection(getText(), off); public boolean onTouchEvent(MotionEvent event) {
break; switch (event.getAction()) {
} //重写了需要处理屏幕被按下的事件
case MotionEvent.ACTION_DOWN:
return super.onTouchEvent(event); //跟新当前坐标值
} int x = (int) event.getX();
int y = (int) event.getY();
@Override x -= getTotalPaddingLeft();
public boolean onKeyDown(int keyCode, KeyEvent event) { y -= getTotalPaddingTop();
switch (keyCode) { x += getScrollX();
case KeyEvent.KEYCODE_ENTER: y += getScrollY();
if (mOnTextViewChangeListener != null) {
return false; //用布局控件layout根据x,y的新值设置新的位置
} Layout layout = getLayout();
break; int line = layout.getLineForVertical(y);
case KeyEvent.KEYCODE_DEL: int off = layout.getOffsetForHorizontal(line, x);
mSelectionStartBeforeDelete = getSelectionStart();
break; //更新光标新的位置
default: Selection.setSelection(getText(), off);
break; break;
} }
return super.onKeyDown(keyCode, event);
} return super.onTouchEvent(event);
/** }
* @method: onKeyUp
* @description: 处理键盘输入的键。对于delete键和enter键做了异常处理。 @Override
* 编辑时会进入，按返回键退出时也会进入 /*
* @date: 2023/12/21 0:28 * 函数功能：处理用户按下一个键盘按键时会触发 的事件
* @author: zhoukexing * 实现过程：如下注释
* @param: [keyCode, event] */
* @return: boolean public boolean onKeyDown(int keyCode, KeyEvent event) {
*/ switch (keyCode) {
@Override //根据按键的 Unicode 编码值来处理
public boolean onKeyUp(int keyCode, KeyEvent event) { case KeyEvent.KEYCODE_ENTER:
switch(keyCode) { //“进入”按键
case KeyEvent.KEYCODE_DEL: // delete键的号为67 @zhoukexing 2023/12/21 0:31 if (mOnTextViewChangeListener != null) {
if (mOnTextViewChangeListener != null) { return false;
if (0 == mSelectionStartBeforeDelete && mIndex != 0) { }
mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString()); break;
return true; case KeyEvent.KEYCODE_DEL:
} //“删除”按键
} else { mSelectionStartBeforeDelete = getSelectionStart();
Log.d(TAG, "OnTextViewChangeListener was not seted"); break;
} default:
break; break;
case KeyEvent.KEYCODE_ENTER: // enter键的号为66 @zhoukexing 2023/12/21 0:31 }
if (mOnTextViewChangeListener != null) { //继续执行父类的其他点击事件
int selectionStart = getSelectionStart(); return super.onKeyDown(keyCode, event);
String text = getText().subSequence(selectionStart, length()).toString(); }
setText(getText().subSequence(0, selectionStart));
mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text); @Override
} else { /*
Log.d(TAG, "OnTextViewChangeListener was not seted"); * 函数功能：处理用户松开一个键盘按键时会触发 的事件
} * 实现方式：如下注释
break; */
default: public boolean onKeyUp(int keyCode, KeyEvent event) {
break; switch(keyCode) {
} //根据按键的 Unicode 编码值来处理，有删除和进入2种操作
return super.onKeyUp(keyCode, event); case KeyEvent.KEYCODE_DEL:
} if (mOnTextViewChangeListener != null) {
//若是被修改过
@Override if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { //若之前有被修改并且文档不为空
if (mOnTextViewChangeListener != null) { mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
if (!focused && TextUtils.isEmpty(getText())) { //利用上文OnTextViewChangeListener对KEYCODE_DEL按键情况的删除函数进行删除
mOnTextViewChangeListener.onTextChange(mIndex, false); return true;
} else { }
mOnTextViewChangeListener.onTextChange(mIndex, true); } else {
} Log.d(TAG, "OnTextViewChangeListener was not seted");
} //其他情况报错，文档的改动监听器并没有建立
super.onFocusChanged(focused, direction, previouslyFocusedRect); }
} break;
case KeyEvent.KEYCODE_ENTER:
@Override //同上也是分为监听器是否建立2种情况
protected void onCreateContextMenu(ContextMenu menu) { if (mOnTextViewChangeListener != null) {
if (getText() instanceof Spanned) { int selectionStart = getSelectionStart();
int selStart = getSelectionStart(); //获取当前位置
int selEnd = getSelectionEnd(); String text = getText().subSequence(selectionStart, length()).toString();
//获取当前文本
int min = Math.min(selStart, selEnd); setText(getText().subSequence(0, selectionStart));
int max = Math.max(selStart, selEnd); //根据获取的文本设置当前文本
mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);
final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class); //当{@link KeyEvent#KEYCODE_ENTER}添加新文本
if (urls.length == 1) { } else {
int defaultResId = 0; Log.d(TAG, "OnTextViewChangeListener was not seted");
for(String schema: sSchemaActionResMap.keySet()) { //其他情况报错，文档的改动监听器并没有建立
if(urls[0].getURL().indexOf(schema) >= 0) { }
defaultResId = sSchemaActionResMap.get(schema); break;
break; default:
} break;
} }
//继续执行父类的其他按键弹起的事件
if (defaultResId == 0) { return super.onKeyUp(keyCode, event);
defaultResId = R.string.note_link_other; }
}
@Override
menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener( /*
new OnMenuItemClickListener() { * 函数功能：当焦点发生变化时，会自动调用该方法来处理焦点改变的事件
public boolean onMenuItemClick(MenuItem item) { * 实现方式：如下注释
// goto a new intent * 参数：focused表示触发该事件的View是否获得了焦点，当该控件获得焦点时，Focused等于true，否则等于false。
urls[0].onClick(NoteEditText.this); direction表示焦点移动的方向，用数值表示
return true; Rect：表示在触发事件的View的坐标系中，前一个获得焦点的矩形区域，即表示焦点是从哪里来的。如果不可用则为null
} */
}); protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
} if (mOnTextViewChangeListener != null) {
} //若监听器已经建立
super.onCreateContextMenu(menu); if (!focused && TextUtils.isEmpty(getText())) {
} //获取到焦点并且文本不为空
} mOnTextViewChangeListener.onTextChange(mIndex, false);
//mOnTextViewChangeListener子函数，置false隐藏事件选项
} else {
mOnTextViewChangeListener.onTextChange(mIndex, true);
//mOnTextViewChangeListener子函数，置true显示事件选项
}
}
//继续执行父类的其他焦点变化的事件
super.onFocusChanged(focused, direction, previouslyFocusedRect);
}
@Override
/*
* 函数功能：生成上下文菜单
* 函数实现：如下注释
*/
protected void onCreateContextMenu(ContextMenu menu) {
if (getText() instanceof Spanned) {
//有文本存在
int selStart = getSelectionStart();
int selEnd = getSelectionEnd();
//获取文本开始和结尾位置
int min = Math.min(selStart, selEnd);
int max = Math.max(selStart, selEnd);
//获取开始到结尾的最大值和最小值
final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
//设置url的信息的范围值
if (urls.length == 1) {
int defaultResId = 0;
for(String schema: sSchemaActionResMap.keySet()) {
//获取计划表中所有的key值
if(urls[0].getURL().indexOf(schema) >= 0) {
//若url可以添加则在添加后将defaultResId置为key所映射的值
defaultResId = sSchemaActionResMap.get(schema);
break;
}
}
if (defaultResId == 0) {
//defaultResId == 0则说明url并没有添加任何东西，所以置为连接其他SchemaActionResMap的值
defaultResId = R.string.note_link_other;
}
//建立菜单
menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
new OnMenuItemClickListener() {
//新建按键监听器
public boolean onMenuItemClick(MenuItem item) {
// goto a new intent
urls[0].onClick(NoteEditText.this);
//根据相应的文本设置菜单的按键
return true;
}
});
}
}
//继续执行父类的其他菜单创建的事件
super.onCreateContextMenu(menu);
}
}

505
src/java/net/micode/notes/ui/NotesListAdapter.java
Unescape View File

@ -14,251 +14,260 @@
* limitations under the License. * limitations under the License.
*/ */
package net.micode.notes.ui; package net.micode.notes.ui;
import android.text.TextUtils; import android.content.Context;
import android.content.Context; import android.database.Cursor;
import android.database.Cursor; import android.util.Log;
import android.util.Log; import android.view.View;
import android.view.View; import android.view.ViewGroup;
import android.view.ViewGroup; import android.widget.CursorAdapter;
import android.widget.CursorAdapter;
import android.widget.LinearLayout;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes;
import java.util.Collection;
import java.util.Collection; import java.util.HashMap;
import java.util.HashMap; import java.util.HashSet;
import java.util.HashSet; import java.util.Iterator;
import java.util.Iterator;
/*
public class NotesListAdapter extends CursorAdapter { * 功能：直译为便签表连接器，继承了CursorAdapter，它为cursor和ListView提供了连接的桥梁。
private static final String TAG = "NotesListAdapter"; * 所以NotesListAdapter实现的是鼠标和编辑便签链接的桥梁
private Context mContext; */
/** 键-值对，值为true时，表示被选中 @zhoukexing 2024/1/2 20:50 */ public class NotesListAdapter extends CursorAdapter {
private HashMap<Integer, Boolean> mSelectedIndex; private static final String TAG = "NotesListAdapter";
// private HashMap<Integer, String> mSnippetPosition; private Context mContext;
private int mNotesCount; private HashMap<Integer, Boolean> mSelectedIndex;
private boolean mChoiceMode; private int mNotesCount; //便签数
// private String mQuery; // 搜索串 private boolean mChoiceMode; //选择模式标记
public static class AppWidgetAttribute { /*
public int widgetId; * 桌面widget的属性，包括编号和类型
public int widgetType; */
} public static class AppWidgetAttribute {
public int widgetId;
public NotesListAdapter(Context context, Cursor cursor) { public int widgetType;
super(context, cursor); };
mSelectedIndex = new HashMap<Integer, Boolean>();
// mSnippetPosition = new HashMap<Integer, String>(); /*
mContext = context; * 函数功能：初始化便签链接器
mNotesCount = 0; * 函数实现：根据传进来的内容设置相关变量
// mQuery=""; */
} public NotesListAdapter(Context context) {
super(context, null); //父类对象置空
// @Override mSelectedIndex = new HashMap<Integer, Boolean>(); //新建选项下标的hash表
// public View getView(int position, View convertView, ViewGroup parent) { mContext = context;
// View view = super.getView(position, convertView, parent); mNotesCount = 0;
// // 仅显示便签项中包含搜索串的便签 }
// String snippet = mSnippetPosition.get(position);
// Log.e(TAG, snippet); @Override
// if(!TextUtils.isEmpty(mQuery) && !mSnippetPosition.get(position).contains(mQuery)) { /*
// view.setVisibility(View.GONE); * 函数功能：新建一个视图来存储光标所指向的数据
// LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(0,1); * 函数实现：使用兄弟类NotesListItem新建一个项目选项
// view.setLayoutParams(param); */
// } public View newView(Context context, Cursor cursor, ViewGroup parent) {
// return view; return new NotesListItem(context);
// } }
@Override /*
public View newView(Context context, Cursor cursor, ViewGroup parent) { * 函数功能：将已经存在的视图和鼠标指向的数据进行捆绑
return new NotesListItem(context); * 函数实现：如下注释
} */
@Override
@Override public void bindView(View view, Context context, Cursor cursor) {
public void bindView(View view, Context context, Cursor cursor) { if (view instanceof NotesListItem) {
if (view instanceof NotesListItem) { //若view是NotesListItem的一个实例
NoteItemData itemData = new NoteItemData(context, cursor); NoteItemData itemData = new NoteItemData(context, cursor);
((NotesListItem) view).bind(context, itemData, mChoiceMode, ((NotesListItem) view).bind(context, itemData, mChoiceMode,
isSelectedItem(cursor.getPosition())); isSelectedItem(cursor.getPosition()));
} //则新建一个项目选项并且用bind跟将view和鼠标，内容，便签数据捆绑在一起
} }
}
public void setCheckedItem(final int position, final boolean checked) {
mSelectedIndex.put(position, checked); /*
notifyDataSetChanged(); * 函数功能：设置勾选框
} * 函数实现：如下注释
*/
public boolean isInChoiceMode() { public void setCheckedItem(final int position, final boolean checked) {
return mChoiceMode; mSelectedIndex.put(position, checked);
} //根据定位和是否勾选设置下标
notifyDataSetChanged();
public void setChoiceMode(boolean mode) { //在修改后刷新activity
mSelectedIndex.clear(); }
mChoiceMode = mode;
} /*
* 函数功能：判断单选按钮是否勾选
/** */
* @method: selectAll public boolean isInChoiceMode() {
* @description: 传入一个boolean值， return mChoiceMode;
* 通过setCheckedItem来修改mSelectedIndex数据成员， }
* 将值都置为传入的参数，
* 达到选中所有项 or 不选所有项的效果。 /*
* @date: 2024/1/3 22:36 * 函数功能：设置单项选项框
* @author: zhoukexing * 函数实现：重置下标并且根据参数mode设置选项
* @param: [checked] */
* @return: void public void setChoiceMode(boolean mode) {
*/ mSelectedIndex.clear();
public void selectAll(boolean checked) { mChoiceMode = mode;
Cursor cursor = getCursor(); }
for (int i = 0; i < getCount(); i++) {
if (cursor.moveToPosition(i)) { /*
if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) { * 函数功能：选择全部选项
setCheckedItem(i, checked); * 函数实现：如下注释
} */
} public void selectAll(boolean checked) {
} Cursor cursor = getCursor();
} //获取光标位置
for (int i = 0; i < getCount(); i++) {
public HashSet<Long> getSelectedItemIds() { if (cursor.moveToPosition(i)) {
HashSet<Long> itemSet = new HashSet<Long>(); if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) {
for (Integer position : mSelectedIndex.keySet()) { setCheckedItem(i, checked);
if (mSelectedIndex.get(position) == true) { }
Long id = getItemId(position); }
if (id == Notes.ID_ROOT_FOLDER) { }
Log.d(TAG, "Wrong item id, should not happen"); //遍历所有光标可用的位置在判断为便签类型之后勾选单项框
} else { }
itemSet.add(id);
} /*
} * 函数功能：建立选择项的下标列表
} * 函数实现：如下注释
*/
return itemSet; public HashSet<Long> getSelectedItemIds() {
} HashSet<Long> itemSet = new HashSet<Long>();
//建立hash表
public HashSet<AppWidgetAttribute> getSelectedWidget() { for (Integer position : mSelectedIndex.keySet()) {
HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>(); //遍历所有的关键
for (Integer position : mSelectedIndex.keySet()) { if (mSelectedIndex.get(position) == true) {
if (mSelectedIndex.get(position) == true) { //若光标位置可用
Cursor c = (Cursor) getItem(position); Long id = getItemId(position);
if (c != null) { if (id == Notes.ID_ROOT_FOLDER) {
AppWidgetAttribute widget = new AppWidgetAttribute(); //原文件不需要添加
NoteItemData item = new NoteItemData(mContext, c); Log.d(TAG, "Wrong item id, should not happen");
widget.widgetId = item.getWidgetId(); } else {
widget.widgetType = item.getWidgetType(); itemSet.add(id);
itemSet.add(widget); }
/** //则将id该下标假如选项集合中
* Don't close cursor here, only the adapter could close it
*/ }
} else { }
Log.e(TAG, "Invalid cursor");
return null; return itemSet;
} }
}
} /*
return itemSet; * 函数功能：建立桌面Widget的选项表
} * 函数实现：如下注释
*/
public int getSelectedCount() { public HashSet<AppWidgetAttribute> getSelectedWidget() {
Collection<Boolean> values = mSelectedIndex.values(); HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>();
if (null == values) { for (Integer position : mSelectedIndex.keySet()) {
return 0; if (mSelectedIndex.get(position) == true) {
} Cursor c = (Cursor) getItem(position);
Iterator<Boolean> iter = values.iterator(); //以上4句和getSelectedItemIds一样，不再重复
int count = 0; if (c != null) {
while (iter.hasNext()) { //光标位置可用的话就建立新的Widget属性并编辑下标和类型，最后添加到选项集中
if (true == iter.next()) { AppWidgetAttribute widget = new AppWidgetAttribute();
count++; NoteItemData item = new NoteItemData(mContext, c);
} widget.widgetId = item.getWidgetId();
} widget.widgetType = item.getWidgetType();
return count; itemSet.add(widget);
} /**
* Don't close cursor here, only the adapter could close it
public int getMNotesCount() { */
return mNotesCount; } else {
} Log.e(TAG, "Invalid cursor");
return null;
/** }
* @method: isAllSelected }
* @description: 如果都选中了就返回true，否则返回false }
* @date: 2024/1/2 20:47 return itemSet;
* @author: zhoukexing }
* @param: []
* @return: boolean /*
*/ * 函数功能：获取选项个数
public boolean isAllSelected() { * 函数实现：如下注释
int checkedCount = getSelectedCount(); */
return (checkedCount != 0 && checkedCount == mNotesCount); public int getSelectedCount() {
} Collection<Boolean> values = mSelectedIndex.values();
//首先获取选项下标的值
// public void setmQuery(String Query) { if (null == values) {
// mQuery = Query; return 0;
// } }
Iterator<Boolean> iter = values.iterator();
public boolean isSelectedItem(final int position) { //初始化叠加器
if (null == mSelectedIndex.get(position)) { int count = 0;
return false; while (iter.hasNext()) {
} if (true == iter.next()) {
return mSelectedIndex.get(position); //若value值为真计数+1
} count++;
}
@Override }
protected void onContentChanged() { return count;
super.onContentChanged(); }
calcNotesCount();
// updateSnippetMap(); // 在数据发生改变时更新 Snippet 到 Position 的映射 /*
} * 函数功能：判断是否全部选中
* 函数实现：如下注释
/** */
* @Method changeCursor public boolean isAllSelected() {
* @Date 2024/1/18 15:36 int checkedCount = getSelectedCount();
* @param cursor return (checkedCount != 0 && checkedCount == mNotesCount);
* @Author lenovo //获取选项数看是否等于便签的个数
* @Return void }
* @Description 当cursor改变时调用，需要在这里进行一些数据更新工作
*/ /*
@Override * 函数功能：判断是否为选项表
public void changeCursor(Cursor cursor) { * 函数实现：通过传递的下标来确定
super.changeCursor(cursor); */
calcNotesCount(); public boolean isSelectedItem(final int position) {
// updateSnippetMap(); // 在数据发生改变时更新 Snippet 到 Position 的映射 if (null == mSelectedIndex.get(position)) {
} return false;
}
// private void updateSnippetMap() { return mSelectedIndex.get(position);
// mSnippetPosition = new HashMap<Integer, String>(); }
// for (int i = 0; i < getCount(); i++) {
// Cursor c = (Cursor) getItem(i); @Override
// if (c != null) { /*
// int position = c.getPosition(); * 函数功能：在activity内容发生局部变动的时候回调该函数计算便签的数量
// NoteItemData item = new NoteItemData(mContext, c); * 函数实现：如下注释
// mSnippetPosition.put(position, item.getSnippet()); */
// } else { protected void onContentChanged() {
// Log.e(TAG, "Invalid cursor"); super.onContentChanged();
// break; //执行基类函数
// } calcNotesCount();
// } }
// }
@Override
/** /*
* @Method calcNotesCount * 函数功能：在activity光标发生局部变动的时候回调该函数计算便签的数量
* @Date 2024/1/18 15:36 */
* @Author lenovo public void changeCursor(Cursor cursor) {
* @Return void super.changeCursor(cursor);
* @Description 计算便签的数目 //执行基类函数
*/ calcNotesCount();
private void calcNotesCount() { }
mNotesCount = 0;
for (int i = 0; i < getCount(); i++) { /*
Cursor c = (Cursor) getItem(i); * 函数功能：计算便签数量
if (c != null) { *
if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) { */
mNotesCount++; private void calcNotesCount() {
} mNotesCount = 0;
} else { for (int i = 0; i < getCount(); i++) {
Log.e(TAG, "Invalid cursor"); //获取总数同时遍历
return; Cursor c = (Cursor) getItem(i);
} if (c != null) {
} if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) {
} mNotesCount++;
} //若该位置不为空并且文本类型为便签就+1
}
} else {
Log.e(TAG, "Invalid cursor");
return;
}
//否则报错
}
}
}

239
src/java/net/micode/notes/ui/NotesListItem.java
Unescape View File

@ -14,126 +14,119 @@
* limitations under the License. * limitations under the License.
*/ */
package net.micode.notes.ui; package net.micode.notes.ui;
import android.content.Context; import android.content.Context;
import android.text.format.DateUtils; import android.text.format.DateUtils;
import android.view.View; import android.view.View;
import android.widget.CheckBox; import android.widget.CheckBox;
import android.widget.ImageView; import android.widget.ImageView;
import android.widget.LinearLayout; import android.widget.LinearLayout;
import android.widget.TextView; import android.widget.TextView;
import net.micode.notes.R; import net.micode.notes.R;
import net.micode.notes.data.Notes; import net.micode.notes.data.Notes;
import net.micode.notes.tool.DataUtils; import net.micode.notes.tool.DataUtils;
import net.micode.notes.tool.ResourceParser.NoteItemBgResources; import net.micode.notes.tool.ResourceParser.NoteItemBgResources;
/** //创建便签列表项目选项
* @Package: public class NotesListItem extends LinearLayout {
* @Class: NotesListItem private ImageView mAlert;//闹钟图片
* @Author lenovo private TextView mTitle; //标题
* @Date 2024/1/18 15:43 private TextView mTime; //时间
* @Description: 主页面便签项的类 private TextView mCallName; //
*/ private NoteItemData mItemData; //标签数据
public class NotesListItem extends LinearLayout { private CheckBox mCheckBox; //打钩框
private ImageView mAlert;
private ImageView mTop; /*初始化基本信息*/
private TextView mTitle; public NotesListItem(Context context) {
private TextView mTime; super(context); //super()它的主要作用是调整调用父类构造函数的顺序
private TextView mCallName; inflate(context, R.layout.note_item, this);//Inflate可用于将一个xml中定义的布局控件找出来,这里的xml是r。layout
private NoteItemData mItemData; //findViewById用于从contentView中查找指定ID的View，转换出来的形式根据需要而定;
private CheckBox mCheckBox; mAlert = (ImageView) findViewById(R.id.iv_alert_icon);
mTitle = (TextView) findViewById(R.id.tv_title);
public NotesListItem(Context context) { mTime = (TextView) findViewById(R.id.tv_time);
super(context); mCallName = (TextView) findViewById(R.id.tv_name);
inflate(context, R.layout.note_item, this); mCheckBox = (CheckBox) findViewById(android.R.id.checkbox);
mAlert = (ImageView) findViewById(R.id.iv_alert_icon); }
mTop = (ImageView) findViewById(R.id.iv_top_icon); ///根据data的属性对各个控件的属性的控制，主要是可见性Visibility，内容setText，格式setTextAppearance
mTitle = (TextView) findViewById(R.id.tv_title); public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) {
mTime = (TextView) findViewById(R.id.tv_time); if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
mCallName = (TextView) findViewById(R.id.tv_name); mCheckBox.setVisibility(View.VISIBLE); ///设置可见行为可见
mCheckBox = (CheckBox) findViewById(android.R.id.checkbox); mCheckBox.setChecked(checked); ///格子打钩
} } else {
mCheckBox.setVisibility(View.GONE);
public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) { }
if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
mCheckBox.setVisibility(View.VISIBLE); mItemData = data;
mCheckBox.setChecked(checked); ///设置控件属性，一共三种情况，由data的id和父id是否与保存到文件夹的id一致来决定
} else { if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
mCheckBox.setVisibility(View.GONE); mCallName.setVisibility(View.GONE);
} mAlert.setVisibility(View.VISIBLE);
//设置该textview的style
mItemData = data; mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { //settext为设置内容
mCallName.setVisibility(View.GONE); mTitle.setText(context.getString(R.string.call_record_folder_name)
mAlert.setVisibility(View.VISIBLE); + context.getString(R.string.format_folder_files_count, data.getNotesCount()));
mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); mAlert.setImageResource(R.drawable.call_record);
mTitle.setText(context.getString(R.string.call_record_folder_name) } else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) {
+ context.getString(R.string.format_folder_files_count, data.getNotesCount())); mCallName.setVisibility(View.VISIBLE);
mAlert.setImageResource(R.drawable.call_record); mCallName.setText(data.getCallName());
} else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) { mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem);
mCallName.setVisibility(View.VISIBLE); mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
mCallName.setText(data.getCallName()); ///关于闹钟的设置
mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem); if (data.hasAlert()) {
mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); mAlert.setImageResource(R.drawable.clock);//图片来源的设置
if (data.hasAlert()) { mAlert.setVisibility(View.VISIBLE);
mAlert.setImageResource(R.drawable.clock); } else {
mAlert.setVisibility(View.VISIBLE); mAlert.setVisibility(View.GONE);
} else { }
mAlert.setVisibility(View.GONE); } else {
} mCallName.setVisibility(View.GONE);
} else { mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
mCallName.setVisibility(View.GONE); ///设置title格式
mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); if (data.getType() == Notes.TYPE_FOLDER) {
mTitle.setText(data.getSnippet()
if (data.getType() == Notes.TYPE_FOLDER) { + context.getString(R.string.format_folder_files_count,
mTitle.setText(data.getSnippet() data.getNotesCount()));
+ context.getString(R.string.format_folder_files_count, mAlert.setVisibility(View.GONE);
data.getNotesCount())); } else {
mAlert.setVisibility(View.GONE); mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
} else { if (data.hasAlert()) {
mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); mAlert.setImageResource(R.drawable.clock);///设置图片来源
if (data.hasAlert()) { mAlert.setVisibility(View.VISIBLE);
mAlert.setImageResource(R.drawable.clock); } else {
mAlert.setVisibility(View.VISIBLE); mAlert.setVisibility(View.GONE);
} else { }
mAlert.setVisibility(View.GONE); }
} }
} ///设置内容，获取相关时间，从data里编辑的日期中获取
} mTime. setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));
mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));
// 设置置顶图标 setBackground(data);
if(data.getTop() == 1){ }
mTop.setImageResource(R.drawable.set_top); //根据data的文件属性来设置背景
mTop.setVisibility(View.VISIBLE); private void setBackground(NoteItemData data) {
} int id = data.getBgColorId();
else{ //，若是note型文件，则4种情况，对于4种不同情况的背景来源
mTop.setVisibility(View.GONE); if (data.getType() == Notes.TYPE_NOTE) {
} //单个数据并且只有一个子文件夹
if (data.isSingle() || data.isOneFollowingFolder()) {
setBackground(data); setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id));
} } else if (data.isLast()) {//是最后一个数据
setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id));
private void setBackground(NoteItemData data) { } else if (data.isFirst() || data.isMultiFollowingFolder()) {//是一个数据并有多个子文件夹
int id = data.getBgColorId(); setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id));
if (data.getType() == Notes.TYPE_NOTE) { } else {
if (data.isSingle() || data.isOneFollowingFolder()) { setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id));
setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id)); }
} else if (data.isLast()) { } else {
setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id)); //若不是note直接调用文件夹的背景来源
} else if (data.isFirst() || data.isMultiFollowingFolder()) { setBackgroundResource(NoteItemBgResources.getFolderBgRes());
setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id)); }
} else { }
setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id)); public NoteItemData getItemData() {
} return mItemData;
} else { }
setBackgroundResource(NoteItemBgResources.getFolderBgRes()); }
}
}
public NoteItemData getItemData() {
return mItemData;
}
}

886
src/java/net/micode/notes/ui/NotesPreferenceActivity.java
Unescape View File

@ -14,375 +14,517 @@
* limitations under the License. * limitations under the License.
*/ */
package net.micode.notes.ui; package net.micode.notes.ui;
import android.accounts.Account; import android.accounts.Account;
import android.accounts.AccountManager; import android.accounts.AccountManager;
import android.app.ActionBar; import android.app.ActionBar;
import android.app.AlertDialog; import android.app.AlertDialog;
import android.content.BroadcastReceiver; import android.content.BroadcastReceiver;
import android.content.ContentValues; import android.content.ContentValues;
import android.content.Context; import android.content.Context;
import android.content.DialogInterface; import android.content.DialogInterface;
import android.content.Intent; import android.content.Intent;
import android.content.IntentFilter; import android.content.IntentFilter;
import android.content.SharedPreferences; import android.content.SharedPreferences;
import android.os.Bundle; import android.os.Bundle;
import android.preference.Preference; import android.preference.Preference;
import android.preference.Preference.OnPreferenceClickListener; import android.preference.Preference.OnPreferenceClickListener;
import android.preference.PreferenceActivity; import android.preference.PreferenceActivity;
import android.preference.PreferenceCategory; import android.preference.PreferenceCategory;
import android.text.TextUtils; import android.text.TextUtils;
import android.text.format.DateFormat; import android.text.format.DateFormat;
import android.view.LayoutInflater; import android.view.LayoutInflater;
import android.view.Menu; import android.view.Menu;
import android.view.MenuItem; import android.view.MenuItem;
import android.view.View; import android.view.View;
import android.widget.Button; import android.widget.Button;
import android.widget.TextView; import android.widget.TextView;
import android.widget.Toast; import android.widget.Toast;
import net.micode.notes.R; import net.micode.notes.R;
import net.micode.notes.data.Notes; import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.gtask.remote.GTaskSyncService; import net.micode.notes.gtask.remote.GTaskSyncService;
/*
public class NotesPreferenceActivity extends PreferenceActivity { *该类功能：NotesPreferenceActivity，在小米便签中主要实现的是对背景颜色和字体大小的数据储存。
public static final String PREFERENCE_NAME = "notes_preferences"; * 继承了PreferenceActivity主要功能为对系统信息和配置进行自动保存的Activity
*/
public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name"; public class NotesPreferenceActivity extends PreferenceActivity {
public static final String PREFERENCE_NAME = "notes_preferences";
public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time"; //优先名
public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name";
public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear"; //同步账号
public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time";
private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key"; //同步时间
public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear";
private static final String AUTHORITIES_FILTER_KEY = "authorities";
private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key";
private PreferenceCategory mAccountCategory; //同步密码
private static final String AUTHORITIES_FILTER_KEY = "authorities";
private GTaskReceiver mReceiver; //本地密码
private PreferenceCategory mAccountCategory;
private Account[] mOriAccounts; //账户分组
private GTaskReceiver mReceiver;
private boolean mHasAddedAccount; //同步任务接收器
private Account[] mOriAccounts;
@Override //账户
protected void onCreate(Bundle icicle) { private boolean mHasAddedAccount;
super.onCreate(icicle); //账户的hash标记
/* using the app icon for navigation */ @Override
getActionBar().setDisplayHomeAsUpEnabled(true); /*
*函数功能：创建一个activity，在函数里要完成所有的正常静态设置
addPreferencesFromResource(R.xml.preferences); *参数：Bundle icicle：存放了 activity 当前的状态
mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY); *函数实现：如下注释
mReceiver = new GTaskReceiver(); */
IntentFilter filter = new IntentFilter(); protected void onCreate(Bundle icicle) {
filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME); //先执行父类的创建函数
registerReceiver(mReceiver, filter); super.onCreate(icicle);
mOriAccounts = null; /* using the app icon for navigation */
View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null); getActionBar().setDisplayHomeAsUpEnabled(true);
getListView().addHeaderView(header, null, true); //给左上角图标的左边加上一个返回的图标
}
addPreferencesFromResource(R.xml.preferences);
@Override //添加xml来源并显示 xml
protected void onResume() { mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);
super.onResume(); //根据同步账户关键码来初始化分组
mReceiver = new GTaskReceiver();
// need to set sync account automatically if user has added a new IntentFilter filter = new IntentFilter();
// account filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME);
if (mHasAddedAccount) { registerReceiver(mReceiver, filter);
Account[] accounts = getGoogleAccounts(); //初始化同步组件
if (mOriAccounts != null && accounts.length > mOriAccounts.length) {
for (Account accountNew : accounts) { mOriAccounts = null;
boolean found = false; View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);
for (Account accountOld : mOriAccounts) { //获取listvivew，ListView的作用:用于列出所有选择
if (TextUtils.equals(accountOld.name, accountNew.name)) { getListView().addHeaderView(header, null, true);
found = true; //在listview组件上方添加其他组件
break; }
}
} @Override
if (!found) { /*
setSyncAccount(accountNew.name); * 函数功能：activity交互功能的实现，用于接受用户的输入
break; * 函数实现：如下注释
} */
} protected void onResume() {
} //先执行父类 的交互实现
} super.onResume();
refreshUI(); // need to set sync account automatically if user has added a new
} // account
if (mHasAddedAccount) {
@Override //若用户新加了账户则自动设置同步账户
protected void onDestroy() { Account[] accounts = getGoogleAccounts();
if (mReceiver != null) { //获取google同步账户
unregisterReceiver(mReceiver); if (mOriAccounts != null && accounts.length > mOriAccounts.length) {
} //若原账户不为空且当前账户有增加
super.onDestroy(); for (Account accountNew : accounts) {
} boolean found = false;
for (Account accountOld : mOriAccounts) {
private void loadAccountPreference() { if (TextUtils.equals(accountOld.name, accountNew.name)) {
mAccountCategory.removeAll(); //更新账户
found = true;
Preference accountPref = new Preference(this); break;
final String defaultAccount = getSyncAccountName(this); }
accountPref.setTitle(getString(R.string.preferences_account_title)); }
accountPref.setSummary(getString(R.string.preferences_account_summary)); if (!found) {
accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() { setSyncAccount(accountNew.name);
public boolean onPreferenceClick(Preference preference) { //若是没有找到旧的账户，那么同步账号中就只添加新账户
if (!GTaskSyncService.isSyncing()) { break;
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 refreshUI();
showChangeAccountConfirmAlertDialog(); //刷新标签界面
} }
} else {
Toast.makeText(NotesPreferenceActivity.this, @Override
R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT) /*
.show(); * 函数功能：销毁一个activity
} * 函数实现：如下注释
return true; */
} protected void onDestroy() {
}); if (mReceiver != null) {
unregisterReceiver(mReceiver);
mAccountCategory.addPreference(accountPref); //注销接收器
} }
super.onDestroy();
private void loadSyncButton() { //执行父类的销毁动作
Button syncButton = (Button) findViewById(R.id.preference_sync_button); }
TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
/*
// set button state * 函数功能：重新设置账户信息
if (GTaskSyncService.isSyncing()) { * 函数实现：如下注释
syncButton.setText(getString(R.string.preferences_button_sync_cancel)); */
syncButton.setOnClickListener(new View.OnClickListener() { private void loadAccountPreference() {
public void onClick(View v) { mAccountCategory.removeAll();
GTaskSyncService.cancelSync(NotesPreferenceActivity.this); //销毁所有的分组
} Preference accountPref = new Preference(this);
}); //建立首选项
} else { final String defaultAccount = getSyncAccountName(this);
syncButton.setText(getString(R.string.preferences_button_sync_immediately)); accountPref.setTitle(getString(R.string.preferences_account_title));
syncButton.setOnClickListener(new View.OnClickListener() { accountPref.setSummary(getString(R.string.preferences_account_summary));
public void onClick(View v) { //设置首选项的大标题和小标题
GTaskSyncService.startSync(NotesPreferenceActivity.this); accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
} public boolean onPreferenceClick(Preference preference) {
}); //建立监听器
} if (!GTaskSyncService.isSyncing()) {
syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this))); if (TextUtils.isEmpty(defaultAccount)) {
// the first time to set account
// set last sync time //若是第一次建立账户显示选择账户提示对话框
if (GTaskSyncService.isSyncing()) { showSelectAccountAlertDialog();
lastSyncTimeView.setText(GTaskSyncService.getProgressString()); } else {
lastSyncTimeView.setVisibility(View.VISIBLE); // if the account has already been set, we need to promp
} else { // user about the risk
long lastSyncTime = getLastSyncTime(this); //若是已经建立则显示修改对话框并进行修改操作
if (lastSyncTime != 0) { showChangeAccountConfirmAlertDialog();
lastSyncTimeView.setText(getString(R.string.preferences_last_sync_time, }
DateFormat.format(getString(R.string.preferences_last_sync_time_format), } else {
lastSyncTime))); //若在没有同步的情况下，则在toast中显示不能修改
lastSyncTimeView.setVisibility(View.VISIBLE); Toast.makeText(NotesPreferenceActivity.this,
} else { R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT)
lastSyncTimeView.setVisibility(View.GONE); .show();
} }
} return true;
} }
});
private void refreshUI() {
loadAccountPreference(); //根据新建首选项编辑新的账户分组
loadSyncButton(); mAccountCategory.addPreference(accountPref);
} }
private void showSelectAccountAlertDialog() { /*
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); *函数功能：设置按键的状态和最后同步的时间
*函数实现：如下注释
View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null); */
TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title); private void loadSyncButton() {
titleTextView.setText(getString(R.string.preferences_dialog_select_account_title)); Button syncButton = (Button) findViewById(R.id.preference_sync_button);
TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle); TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips)); //获取同步按钮控件和最终同步时间的的窗口
// set button state
dialogBuilder.setCustomTitle(titleView); //设置按钮的状态
dialogBuilder.setPositiveButton(null, null); if (GTaskSyncService.isSyncing()) {
//若是在同步状态下
Account[] accounts = getGoogleAccounts(); syncButton.setText(getString(R.string.preferences_button_sync_cancel));
String defAccount = getSyncAccountName(this); syncButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
mOriAccounts = accounts; GTaskSyncService.cancelSync(NotesPreferenceActivity.this);
mHasAddedAccount = false; }
});
if (accounts.length > 0) { //设置按钮显示的文本为“取消同步”以及监听器
CharSequence[] items = new CharSequence[accounts.length]; } else {
final CharSequence[] itemMapping = items; syncButton.setText(getString(R.string.preferences_button_sync_immediately));
int checkedItem = -1; syncButton.setOnClickListener(new View.OnClickListener() {
int index = 0; public void onClick(View v) {
for (Account account : accounts) { GTaskSyncService.startSync(NotesPreferenceActivity.this);
if (TextUtils.equals(account.name, defAccount)) { }
checkedItem = index; });
} //若是不同步则设置按钮显示的文本为“立即同步”以及对应监听器
items[index++] = account.name; }
} syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this)));
dialogBuilder.setSingleChoiceItems(items, checkedItem, //设置按键可用还是不可用
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) { // set last sync time
setSyncAccount(itemMapping[which].toString()); // 设置最终同步时间
dialog.dismiss(); if (GTaskSyncService.isSyncing()) {
refreshUI(); //若是在同步的情况下
} lastSyncTimeView.setText(GTaskSyncService.getProgressString());
}); lastSyncTimeView.setVisibility(View.VISIBLE);
} // 根据当前同步服务器设置时间显示框的文本以及可见性
} else {
View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null); //若是非同步情况
dialogBuilder.setView(addAccountView); long lastSyncTime = getLastSyncTime(this);
if (lastSyncTime != 0) {
final AlertDialog dialog = dialogBuilder.show(); lastSyncTimeView.setText(getString(R.string.preferences_last_sync_time,
addAccountView.setOnClickListener(new View.OnClickListener() { DateFormat.format(getString(R.string.preferences_last_sync_time_format),
public void onClick(View v) { lastSyncTime)));
mHasAddedAccount = true; lastSyncTimeView.setVisibility(View.VISIBLE);
Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS"); //则根据最后同步时间的信息来编辑时间显示框的文本内容和可见性
intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] { } else {
"gmail-ls" //若时间为空直接设置为不可见状态
}); lastSyncTimeView.setVisibility(View.GONE);
startActivityForResult(intent, -1); }
dialog.dismiss(); }
} }
}); /*
} *函数功能：刷新标签界面
*函数实现：调用上文设置账号和设置按键两个函数来实现
private void showChangeAccountConfirmAlertDialog() { */
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); private void refreshUI() {
loadAccountPreference();
View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null); loadSyncButton();
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); * 函数功能：显示账户选择的对话框并进行账户的设置
subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg)); * 函数实现：如下注释
dialogBuilder.setCustomTitle(titleView); */
private void showSelectAccountAlertDialog() {
CharSequence[] menuItemArray = new CharSequence[] { AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
getString(R.string.preferences_menu_change_account), //创建一个新的对话框
getString(R.string.preferences_menu_remove_account),
getString(R.string.preferences_menu_cancel) View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
}; TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() { titleTextView.setText(getString(R.string.preferences_dialog_select_account_title));
public void onClick(DialogInterface dialog, int which) { TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
if (which == 0) { subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips));
showSelectAccountAlertDialog(); //设置标题以及子标题的内容
} else if (which == 1) { dialogBuilder.setCustomTitle(titleView);
removeSyncAccount(); dialogBuilder.setPositiveButton(null, null);
refreshUI(); //设置对话框的自定义标题，建立一个YES的按钮
} Account[] accounts = getGoogleAccounts();
} String defAccount = getSyncAccountName(this);
}); //获取同步账户信息
dialogBuilder.show(); mOriAccounts = accounts;
} mHasAddedAccount = false;
private Account[] getGoogleAccounts() { if (accounts.length > 0) {
AccountManager accountManager = AccountManager.get(this); //若账户不为空
return accountManager.getAccountsByType("com.google"); CharSequence[] items = new CharSequence[accounts.length];
} final CharSequence[] itemMapping = items;
int checkedItem = -1;
private void setSyncAccount(String account) { int index = 0;
if (!getSyncAccountName(this).equals(account)) { for (Account account : accounts) {
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); if (TextUtils.equals(account.name, defAccount)) {
SharedPreferences.Editor editor = settings.edit(); checkedItem = index;
if (account != null) { //在账户列表中查询到所需账户
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account); }
} else { items[index++] = account.name;
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); }
} dialogBuilder.setSingleChoiceItems(items, checkedItem,
editor.commit(); //在对话框建立一个单选的复选框
new DialogInterface.OnClickListener() {
// clean up last sync time public void onClick(DialogInterface dialog, int which) {
setLastSyncTime(this, 0); setSyncAccount(itemMapping[which].toString());
dialog.dismiss();
// clean up local gtask related info //取消对话框
new Thread(new Runnable() { refreshUI();
public void run() { }
ContentValues values = new ContentValues(); //设置点击后执行的事件，包括检录新同步账户和刷新标签界面
values.put(NoteColumns.GTASK_ID, ""); });
values.put(NoteColumns.SYNC_ID, 0); //建立对话框网络版的监听器
getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); }
}
}).start(); View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null);
dialogBuilder.setView(addAccountView);
Toast.makeText(NotesPreferenceActivity.this, //给新加账户对话框设置自定义样式
getString(R.string.preferences_toast_success_set_accout, account),
Toast.LENGTH_SHORT).show(); final AlertDialog dialog = dialogBuilder.show();
} //显示对话框
} addAccountView.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
private void removeSyncAccount() { mHasAddedAccount = true;
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); //将新加账户的hash置true
SharedPreferences.Editor editor = settings.edit(); Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) { //建立网络建立组件
editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME); intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] {
} "gmail-ls"
if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) { });
editor.remove(PREFERENCE_LAST_SYNC_TIME); startActivityForResult(intent, -1);
} //跳回上一个选项
editor.commit(); dialog.dismiss();
}
// clean up local gtask related info });
new Thread(new Runnable() { //建立新加账户对话框的监听器
public void run() { }
ContentValues values = new ContentValues();
values.put(NoteColumns.GTASK_ID, ""); /*
values.put(NoteColumns.SYNC_ID, 0); * 函数功能：显示账户选择对话框和相关账户操作
getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); * 函数实现：如下注释
} */
}).start(); private void showChangeAccountConfirmAlertDialog() {
} AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
//创建一个新的对话框
public static String getSyncAccountName(Context context) { View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
Context.MODE_PRIVATE); titleTextView.setText(getString(R.string.preferences_dialog_change_account_title,
return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); getSyncAccountName(this)));
} TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg));
public static void setLastSyncTime(Context context, long time) { //根据同步修改的账户信息设置标题以及子标题的内容
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, dialogBuilder.setCustomTitle(titleView);
Context.MODE_PRIVATE); //设置对话框的自定义标题
SharedPreferences.Editor editor = settings.edit(); CharSequence[] menuItemArray = new CharSequence[] {
editor.putLong(PREFERENCE_LAST_SYNC_TIME, time); getString(R.string.preferences_menu_change_account),
editor.commit(); getString(R.string.preferences_menu_remove_account),
} getString(R.string.preferences_menu_cancel)
};
public static long getLastSyncTime(Context context) { //定义一些标记字符串
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() {
Context.MODE_PRIVATE); //设置对话框要显示的一个list，用于显示几个命令时,即change，remove，cancel
return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0); public void onClick(DialogInterface dialog, int which) {
} //按键功能，由which来决定
if (which == 0) {
private class GTaskReceiver extends BroadcastReceiver { //进入账户选择对话框
showSelectAccountAlertDialog();
@Override } else if (which == 1) {
public void onReceive(Context context, Intent intent) { //删除账户并且跟新便签界面
refreshUI(); removeSyncAccount();
if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) { refreshUI();
TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview); }
syncStatus.setText(intent }
.getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG)); });
} dialogBuilder.show();
//显示对话框
} }
}
/*
public boolean onOptionsItemSelected(MenuItem item) { *函数功能：获取谷歌账户
switch (item.getItemId()) { *函数实现：通过账户管理器直接获取
case android.R.id.home: */
Intent intent = new Intent(this, NotesListActivity.class); private Account[] getGoogleAccounts() {
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); AccountManager accountManager = AccountManager.get(this);
startActivity(intent); return accountManager.getAccountsByType("com.google");
return true; }
default:
return false; /*
} * 函数功能：设置同步账户
} * 函数实现：如下注释：
} */
private void setSyncAccount(String account) {
if (!getSyncAccountName(this).equals(account)) {
//假如该账号不在同步账号列表中
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = settings.edit();
//编辑共享的首选项
if (account != null) {
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account);
} else {
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
}
//将该账号加入到首选项中
editor.commit();
//提交修改的数据
setLastSyncTime(this, 0);
//将最后同步时间清零
// 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();
//重置当地同步任务的信息
Toast.makeText(NotesPreferenceActivity.this,
getString(R.string.preferences_toast_success_set_accout, account),
Toast.LENGTH_SHORT).show();
//将toast的文本信息置为“设置账户成功”并显示出来
}
}
/*
* 函数功能：删除同步账户
* 函数实现：如下注释：
*/
private void removeSyncAccount() {
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = settings.edit();
//设置共享首选项
if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) {
editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME);
//假如当前首选项中有账户就删除
}
if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) {
editor.remove(PREFERENCE_LAST_SYNC_TIME);
//删除当前首选项中有账户时间
}
editor.commit();
//提交更新后的数据
// 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();
//重置当地同步任务的信息
}
/*
* 函数功能：获取同步账户名称
* 函数实现：通过共享的首选项里的信息直接获取
*/
public static String getSyncAccountName(Context context) {
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
Context.MODE_PRIVATE);
return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
}
/*
* 函数功能：设置最终同步的时间
* 函数实现：如下注释
*/
public static void setLastSyncTime(Context context, long time) {
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
Context.MODE_PRIVATE);
SharedPreferences.Editor editor = settings.edit();
// 从共享首选项中找到相关账户并获取其编辑器
editor.putLong(PREFERENCE_LAST_SYNC_TIME, time);
editor.commit();
//编辑最终同步时间并提交更新
}
/*
* 函数功能：获取最终同步时间
* 函数实现：通过共享的首选项里的信息直接获取
*/
public static long getLastSyncTime(Context context) {
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
Context.MODE_PRIVATE);
return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0);
}
/*
* 函数功能：接受同步信息
* 函数实现：继承BroadcastReceiver
*/
private class GTaskReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
refreshUI();
if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) {
//获取随广播而来的Intent中的同步服务的数据
TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
syncStatus.setText(intent
.getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG));
//通过获取的数据在设置系统的状态
}
}
}
/*
* 函数功能：处理菜单的选项
* 函数实现：如下注释
* 参数:MenuItem菜单选项
*/
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
//根据选项的id选择，这里只有一个主页
case android.R.id.home:
Intent intent = new Intent(this, NotesListActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
return true;
//在主页情况下在创建连接组件intent，发出清空的信号并开始一个相应的activity
default:
return false;
}
}
}

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