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DataUtils注释

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ice
karlsilver 2 months ago
parent bc5b0db113
commit 82703ff42a
1 changed files with 76 additions and 5 deletions
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79
java/net/micode/notes/tool/DataUtils.java
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@ -34,87 +34,112 @@ import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
import java.util.ArrayList;
import java.util.HashSet;
// 该类包含了一系列用于操作笔记数据的工具方法
public class DataUtils {
public static final String TAG = "DataUtils";
// 批量删除笔记的方法
public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
// 检查传入的 id 集合是否为 null
if (ids == null) {
Log.d(TAG, "the ids is null");
return true;
}
// 检查 id 集合是否为空
if (ids.size() == 0) {
Log.d(TAG, "no id is in the hashset");
return true;
}
// 创建一个用于批量操作的列表
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
// 遍历 id 集合
for (long id : ids) {
// 检查是否为系统根文件夹，避免删除系统文件夹
if(id == Notes.ID_ROOT_FOLDER) {
Log.e(TAG, "Don't delete system folder root");
continue;
}
// 创建一个删除操作
ContentProviderOperation.Builder builder = ContentProviderOperation
.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
// 将操作添加到列表中
operationList.add(builder.build());
}
try {
// 执行批量操作
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
// 检查操作结果是否有效
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) {
// 处理远程异常
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} catch (OperationApplicationException e) {
// 处理操作应用异常
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
}
return false;
}
// 将单个笔记移动到指定文件夹的方法
public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
// 创建一个 ContentValues 对象，用于存储要更新的字段和值
ContentValues values = new ContentValues();
values.put(NoteColumns.PARENT_ID, desFolderId);
values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
values.put(NoteColumns.LOCAL_MODIFIED, 1);
// 执行更新操作
resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
}
// 批量将笔记移动到指定文件夹的方法
public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
long folderId) {
// 检查传入的 id 集合是否为 null
if (ids == null) {
Log.d(TAG, "the ids is null");
return true;
}
// 创建一个用于批量操作的列表
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
// 遍历 id 集合
for (long id : ids) {
// 创建一个更新操作
ContentProviderOperation.Builder builder = ContentProviderOperation
.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
builder.withValue(NoteColumns.PARENT_ID, folderId);
builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
// 将操作添加到列表中
operationList.add(builder.build());
}
try {
// 执行批量操作
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
// 检查操作结果是否有效
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) {
// 处理远程异常
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} catch (OperationApplicationException e) {
// 处理操作应用异常
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
}
return false;
}
/**
* Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
*/
// 获取用户文件夹数量的方法，排除系统文件夹
public static int getUserFolderCount(ContentResolver resolver) {
// 查询用户文件夹的数量
Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { "COUNT(*)" },
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
@ -122,13 +147,17 @@ public class DataUtils {
null);
int count = 0;
// 检查游标是否有效
if(cursor != null) {
if(cursor.moveToFirst()) {
try {
// 获取文件夹数量
count = cursor.getInt(0);
} catch (IndexOutOfBoundsException e) {
// 处理索引越界异常
Log.e(TAG, "get folder count failed:" + e.toString());
} finally {
// 关闭游标
cursor.close();
}
}
@ -136,7 +165,9 @@ public class DataUtils {
return count;
}
// 检查笔记是否在数据库中可见的方法
public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
// 查询笔记是否可见
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null,
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
@ -144,60 +175,76 @@ public class DataUtils {
null);
boolean exist = false;
// 检查游标是否有效
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
// 关闭游标
cursor.close();
}
return exist;
}
// 检查笔记是否存在于数据库中的方法
public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
// 查询笔记是否存在
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null, null, null, null);
boolean exist = false;
// 检查游标是否有效
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
// 关闭游标
cursor.close();
}
return exist;
}
// 检查数据是否存在于数据库中的方法
public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
// 查询数据是否存在
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
null, null, null, null);
boolean exist = false;
// 检查游标是否有效
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
// 关闭游标
cursor.close();
}
return exist;
}
// 检查可见文件夹名称是否存在的方法
public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
// 查询可见文件夹名称是否存在
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
" AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
" AND " + NoteColumns.SNIPPET + "=?",
new String[] { name }, null);
boolean exist = false;
// 检查游标是否有效
if(cursor != null) {
if(cursor.getCount() > 0) {
exist = true;
}
// 关闭游标
cursor.close();
}
return exist;
}
// 获取指定文件夹下的笔记小部件信息的方法
public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
// 查询指定文件夹下的笔记小部件信息
Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
NoteColumns.PARENT_ID + "=?",
@ -205,26 +252,33 @@ public class DataUtils {
null);
HashSet<AppWidgetAttribute> set = null;
// 检查游标是否有效
if (c != null) {
if (c.moveToFirst()) {
set = new HashSet<AppWidgetAttribute>();
do {
try {
// 创建一个 AppWidgetAttribute 对象
AppWidgetAttribute widget = new AppWidgetAttribute();
widget.widgetId = c.getInt(0);
widget.widgetType = c.getInt(1);
// 将对象添加到集合中
set.add(widget);
} catch (IndexOutOfBoundsException e) {
// 处理索引越界异常
Log.e(TAG, e.toString());
}
} while (c.moveToNext());
}
// 关闭游标
c.close();
}
return set;
}
// 根据笔记 ID 获取通话号码的方法
public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
// 查询通话号码
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
new String [] { CallNote.PHONE_NUMBER },
CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
@ -233,17 +287,22 @@ public class DataUtils {
if (cursor != null && cursor.moveToFirst()) {
try {
// 获取通话号码
return cursor.getString(0);
} catch (IndexOutOfBoundsException e) {
// 处理索引越界异常
Log.e(TAG, "Get call number fails " + e.toString());
} finally {
// 关闭游标
cursor.close();
}
}
return "";
}
// 根据电话号码和通话日期获取笔记 ID 的方法
public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
// 查询笔记 ID
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
new String [] { CallNote.NOTE_ID },
CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
@ -254,17 +313,22 @@ public class DataUtils {
if (cursor != null) {
if (cursor.moveToFirst()) {
try {
// 获取笔记 ID
return cursor.getLong(0);
} catch (IndexOutOfBoundsException e) {
// 处理索引越界异常
Log.e(TAG, "Get call note id fails " + e.toString());
}
}
// 关闭游标
cursor.close();
}
return 0;
}
// 根据笔记 ID 获取摘要的方法
public static String getSnippetById(ContentResolver resolver, long noteId) {
// 查询摘要
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
new String [] { NoteColumns.SNIPPET },
NoteColumns.ID + "=?",
@ -274,19 +338,26 @@ public class DataUtils {
if (cursor != null) {
String snippet = "";
if (cursor.moveToFirst()) {
// 获取摘要
snippet = cursor.getString(0);
}
// 关闭游标
cursor.close();
return snippet;
}
// 若未找到笔记，抛出异常
throw new IllegalArgumentException("Note is not found with id: " + noteId);
}
// 格式化摘要的方法
public static String getFormattedSnippet(String snippet) {
if (snippet != null) {
// 去除前后空格
snippet = snippet.trim();
// 查找换行符的位置
int index = snippet.indexOf('\n');
if (index != -1) {
// 截取换行符之前的内容
snippet = snippet.substring(0, index);
}
}

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