|
|
|
@ -34,14 +34,15 @@ import net.micode.notes.data.Notes.DataColumns;
|
|
|
|
import net.micode.notes.data.Notes.NoteColumns;
|
|
|
|
import net.micode.notes.data.Notes.NoteColumns;
|
|
|
|
import net.micode.notes.data.NotesDatabaseHelper.TABLE;
|
|
|
|
import net.micode.notes.data.NotesDatabaseHelper.TABLE;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 该类继承自 ContentProvider，用于在 Android 系统中提供笔记数据的增删改查功能，并处理搜索相关操作
|
|
|
|
public class NotesProvider extends ContentProvider {
|
|
|
|
public class NotesProvider extends ContentProvider {
|
|
|
|
|
|
|
|
// 用于匹配不同的 Uri 模式的 UriMatcher 实例
|
|
|
|
private static final UriMatcher mMatcher;
|
|
|
|
private static final UriMatcher mMatcher;
|
|
|
|
|
|
|
|
// 数据库帮助类实例，用于操作数据库
|
|
|
|
private NotesDatabaseHelper mHelper;
|
|
|
|
private NotesDatabaseHelper mHelper;
|
|
|
|
|
|
|
|
// 日志标签，用于记录日志信息
|
|
|
|
private static final String TAG = "NotesProvider";
|
|
|
|
private static final String TAG = "NotesProvider";
|
|
|
|
|
|
|
|
// 定义不同 Uri 模式的匹配码
|
|
|
|
private static final int URI_NOTE = 1;
|
|
|
|
private static final int URI_NOTE = 1;
|
|
|
|
private static final int URI_NOTE_ITEM = 2;
|
|
|
|
private static final int URI_NOTE_ITEM = 2;
|
|
|
|
private static final int URI_DATA = 3;
|
|
|
|
private static final int URI_DATA = 3;
|
|
|
|
@ -49,7 +50,7 @@ public class NotesProvider extends ContentProvider {
|
|
|
|
|
|
|
|
|
|
|
|
private static final int URI_SEARCH = 5;
|
|
|
|
private static final int URI_SEARCH = 5;
|
|
|
|
private static final int URI_SEARCH_SUGGEST = 6;
|
|
|
|
private static final int URI_SEARCH_SUGGEST = 6;
|
|
|
|
|
|
|
|
// 静态代码块，用于初始化 UriMatcher，添加各种 Uri 模式的匹配规则
|
|
|
|
static {
|
|
|
|
static {
|
|
|
|
mMatcher = new UriMatcher(UriMatcher.NO_MATCH);
|
|
|
|
mMatcher = new UriMatcher(UriMatcher.NO_MATCH);
|
|
|
|
mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE);
|
|
|
|
mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE);
|
|
|
|
@ -60,7 +61,8 @@ public class NotesProvider extends ContentProvider {
|
|
|
|
mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, URI_SEARCH_SUGGEST);
|
|
|
|
mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, URI_SEARCH_SUGGEST);
|
|
|
|
mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", URI_SEARCH_SUGGEST);
|
|
|
|
mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", URI_SEARCH_SUGGEST);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 搜索结果投影字符串，用于定义搜索结果中返回的列信息
|
|
|
|
|
|
|
|
// 包括笔记 ID、将笔记 ID 作为意图额外数据、修剪和替换换行符后的笔记摘要作为搜索建议的文本列、图标资源 ID、意图动作和意图数据类型
|
|
|
|
/**
|
|
|
|
/**
|
|
|
|
* x'0A' represents the '\n' character in sqlite. For title and content in the search result,
|
|
|
|
* x'0A' represents the '\n' character in sqlite. For title and content in the search result,
|
|
|
|
* we will trim '\n' and white space in order to show more information.
|
|
|
|
* we will trim '\n' and white space in order to show more information.
|
|
|
|
@ -72,52 +74,61 @@ public class NotesProvider extends ContentProvider {
|
|
|
|
+ R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + ","
|
|
|
|
+ R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + ","
|
|
|
|
+ "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + ","
|
|
|
|
+ "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + ","
|
|
|
|
+ "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA;
|
|
|
|
+ "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA;
|
|
|
|
|
|
|
|
// 搜索查询语句，用于从笔记表中查询符合搜索条件的笔记信息
|
|
|
|
|
|
|
|
// 搜索条件是笔记摘要包含指定字符串，且笔记不在垃圾桶文件夹中，并且是普通笔记类型
|
|
|
|
private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION
|
|
|
|
private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION
|
|
|
|
+ " FROM " + TABLE.NOTE
|
|
|
|
+ " FROM " + TABLE.NOTE
|
|
|
|
+ " WHERE " + NoteColumns.SNIPPET + " LIKE ?"
|
|
|
|
+ " WHERE " + NoteColumns.SNIPPET + " LIKE ?"
|
|
|
|
+ " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER
|
|
|
|
+ " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER
|
|
|
|
+ " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;
|
|
|
|
+ " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;
|
|
|
|
|
|
|
|
// 重写 ContentProvider 的 onCreate 方法，在 ContentProvider 启动时调用
|
|
|
|
|
|
|
|
// 用于获取 NotesDatabaseHelper 的单例实例
|
|
|
|
@Override
|
|
|
|
@Override
|
|
|
|
public boolean onCreate() {
|
|
|
|
public boolean onCreate() {
|
|
|
|
mHelper = NotesDatabaseHelper.getInstance(getContext());
|
|
|
|
mHelper = NotesDatabaseHelper.getInstance(getContext());
|
|
|
|
return true;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 重写 ContentProvider 的 query 方法，用于处理数据查询请求
|
|
|
|
@Override
|
|
|
|
@Override
|
|
|
|
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
|
|
|
|
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
|
|
|
|
String sortOrder) {
|
|
|
|
String sortOrder) {
|
|
|
|
Cursor c = null;
|
|
|
|
Cursor c = null;
|
|
|
|
SQLiteDatabase db = mHelper.getReadableDatabase();
|
|
|
|
SQLiteDatabase db = mHelper.getReadableDatabase();
|
|
|
|
String id = null;
|
|
|
|
String id = null;
|
|
|
|
|
|
|
|
// 根据 Uri 匹配码执行不同的查询操作
|
|
|
|
switch (mMatcher.match(uri)) {
|
|
|
|
switch (mMatcher.match(uri)) {
|
|
|
|
case URI_NOTE:
|
|
|
|
case URI_NOTE:
|
|
|
|
|
|
|
|
// 查询笔记表，返回符合条件的游标
|
|
|
|
c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null,
|
|
|
|
c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null,
|
|
|
|
sortOrder);
|
|
|
|
sortOrder);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_NOTE_ITEM:
|
|
|
|
case URI_NOTE_ITEM:
|
|
|
|
|
|
|
|
// 获取路径片段中的笔记 ID，查询指定 ID 的笔记
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id
|
|
|
|
c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id
|
|
|
|
+ parseSelection(selection), selectionArgs, null, null, sortOrder);
|
|
|
|
+ parseSelection(selection), selectionArgs, null, null, sortOrder);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_DATA:
|
|
|
|
case URI_DATA:
|
|
|
|
|
|
|
|
// 查询数据表，返回符合条件的游标
|
|
|
|
c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null,
|
|
|
|
c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null,
|
|
|
|
sortOrder);
|
|
|
|
sortOrder);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_DATA_ITEM:
|
|
|
|
case URI_DATA_ITEM:
|
|
|
|
|
|
|
|
// 获取路径片段中的数据 ID，查询指定 ID 的数据
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id
|
|
|
|
c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id
|
|
|
|
+ parseSelection(selection), selectionArgs, null, null, sortOrder);
|
|
|
|
+ parseSelection(selection), selectionArgs, null, null, sortOrder);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_SEARCH:
|
|
|
|
case URI_SEARCH:
|
|
|
|
case URI_SEARCH_SUGGEST:
|
|
|
|
case URI_SEARCH_SUGGEST:
|
|
|
|
|
|
|
|
// 检查是否指定了不允许的参数，如果指定则抛出异常
|
|
|
|
if (sortOrder != null || projection != null) {
|
|
|
|
if (sortOrder != null || projection != null) {
|
|
|
|
throw new IllegalArgumentException(
|
|
|
|
throw new IllegalArgumentException(
|
|
|
|
"do not specify sortOrder, selection, selectionArgs, or projection" + "with this query");
|
|
|
|
"do not specify sortOrder, selection, selectionArgs, or projection" + "with this query");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
String searchString = null;
|
|
|
|
String searchString = null;
|
|
|
|
|
|
|
|
// 根据 Uri 匹配码获取搜索字符串
|
|
|
|
if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) {
|
|
|
|
if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) {
|
|
|
|
if (uri.getPathSegments().size() > 1) {
|
|
|
|
if (uri.getPathSegments().size() > 1) {
|
|
|
|
searchString = uri.getPathSegments().get(1);
|
|
|
|
searchString = uri.getPathSegments().get(1);
|
|
|
|
@ -125,12 +136,13 @@ public class NotesProvider extends ContentProvider {
|
|
|
|
} else {
|
|
|
|
} else {
|
|
|
|
searchString = uri.getQueryParameter("pattern");
|
|
|
|
searchString = uri.getQueryParameter("pattern");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 如果搜索字符串为空，则返回 null
|
|
|
|
if (TextUtils.isEmpty(searchString)) {
|
|
|
|
if (TextUtils.isEmpty(searchString)) {
|
|
|
|
return null;
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
try {
|
|
|
|
try {
|
|
|
|
|
|
|
|
// 格式化搜索字符串，执行原始查询并返回游标
|
|
|
|
searchString = String.format("%%%s%%", searchString);
|
|
|
|
searchString = String.format("%%%s%%", searchString);
|
|
|
|
c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY,
|
|
|
|
c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY,
|
|
|
|
new String[] { searchString });
|
|
|
|
new String[] { searchString });
|
|
|
|
@ -139,61 +151,71 @@ public class NotesProvider extends ContentProvider {
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
default:
|
|
|
|
|
|
|
|
// 如果 Uri 不匹配任何已知模式，则抛出异常
|
|
|
|
throw new IllegalArgumentException("Unknown URI " + uri);
|
|
|
|
throw new IllegalArgumentException("Unknown URI " + uri);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 如果游标不为空，则设置通知 Uri，以便在数据变化时接收通知
|
|
|
|
if (c != null) {
|
|
|
|
if (c != null) {
|
|
|
|
c.setNotificationUri(getContext().getContentResolver(), uri);
|
|
|
|
c.setNotificationUri(getContext().getContentResolver(), uri);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return c;
|
|
|
|
return c;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 重写 ContentProvider 的 insert 方法，用于处理数据插入请求
|
|
|
|
@Override
|
|
|
|
@Override
|
|
|
|
public Uri insert(Uri uri, ContentValues values) {
|
|
|
|
public Uri insert(Uri uri, ContentValues values) {
|
|
|
|
SQLiteDatabase db = mHelper.getWritableDatabase();
|
|
|
|
SQLiteDatabase db = mHelper.getWritableDatabase();
|
|
|
|
long dataId = 0, noteId = 0, insertedId = 0;
|
|
|
|
long dataId = 0, noteId = 0, insertedId = 0;
|
|
|
|
|
|
|
|
// 根据 Uri 匹配码执行不同的插入操作
|
|
|
|
switch (mMatcher.match(uri)) {
|
|
|
|
switch (mMatcher.match(uri)) {
|
|
|
|
case URI_NOTE:
|
|
|
|
case URI_NOTE:
|
|
|
|
|
|
|
|
// 插入笔记数据，获取插入的笔记 ID
|
|
|
|
insertedId = noteId = db.insert(TABLE.NOTE, null, values);
|
|
|
|
insertedId = noteId = db.insert(TABLE.NOTE, null, values);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_DATA:
|
|
|
|
case URI_DATA:
|
|
|
|
|
|
|
|
// 获取数据所属的笔记 ID，如果不存在则记录错误日志
|
|
|
|
if (values.containsKey(DataColumns.NOTE_ID)) {
|
|
|
|
if (values.containsKey(DataColumns.NOTE_ID)) {
|
|
|
|
noteId = values.getAsLong(DataColumns.NOTE_ID);
|
|
|
|
noteId = values.getAsLong(DataColumns.NOTE_ID);
|
|
|
|
} else {
|
|
|
|
} else {
|
|
|
|
Log.d(TAG, "Wrong data format without note id:" + values.toString());
|
|
|
|
Log.d(TAG, "Wrong data format without note id:" + values.toString());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 插入数据，获取插入的数据 ID
|
|
|
|
insertedId = dataId = db.insert(TABLE.DATA, null, values);
|
|
|
|
insertedId = dataId = db.insert(TABLE.DATA, null, values);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
default:
|
|
|
|
|
|
|
|
// 如果 Uri 不匹配任何已知模式，则抛出异常
|
|
|
|
throw new IllegalArgumentException("Unknown URI " + uri);
|
|
|
|
throw new IllegalArgumentException("Unknown URI " + uri);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Notify the note uri
|
|
|
|
// 如果插入了笔记数据，则通知笔记 Uri 数据变化
|
|
|
|
if (noteId > 0) {
|
|
|
|
if (noteId > 0) {
|
|
|
|
getContext().getContentResolver().notifyChange(
|
|
|
|
getContext().getContentResolver().notifyChange(
|
|
|
|
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
|
|
|
|
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 如果插入了数据，则通知数据 Uri 数据变化
|
|
|
|
// Notify the data uri
|
|
|
|
|
|
|
|
if (dataId > 0) {
|
|
|
|
if (dataId > 0) {
|
|
|
|
getContext().getContentResolver().notifyChange(
|
|
|
|
getContext().getContentResolver().notifyChange(
|
|
|
|
ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
|
|
|
|
ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 返回插入数据后的 Uri，包含插入的 ID
|
|
|
|
return ContentUris.withAppendedId(uri, insertedId);
|
|
|
|
return ContentUris.withAppendedId(uri, insertedId);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 重写 ContentProvider 的 delete 方法，用于处理数据删除请求
|
|
|
|
@Override
|
|
|
|
@Override
|
|
|
|
public int delete(Uri uri, String selection, String[] selectionArgs) {
|
|
|
|
public int delete(Uri uri, String selection, String[] selectionArgs) {
|
|
|
|
int count = 0;
|
|
|
|
int count = 0;
|
|
|
|
String id = null;
|
|
|
|
String id = null;
|
|
|
|
SQLiteDatabase db = mHelper.getWritableDatabase();
|
|
|
|
SQLiteDatabase db = mHelper.getWritableDatabase();
|
|
|
|
boolean deleteData = false;
|
|
|
|
boolean deleteData = false;
|
|
|
|
|
|
|
|
// 根据 Uri 匹配码执行不同的删除操作
|
|
|
|
switch (mMatcher.match(uri)) {
|
|
|
|
switch (mMatcher.match(uri)) {
|
|
|
|
case URI_NOTE:
|
|
|
|
case URI_NOTE:
|
|
|
|
|
|
|
|
// 添加额外的条件，确保只删除有效 ID 的笔记
|
|
|
|
selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 ";
|
|
|
|
selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 ";
|
|
|
|
count = db.delete(TABLE.NOTE, selection, selectionArgs);
|
|
|
|
count = db.delete(TABLE.NOTE, selection, selectionArgs);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_NOTE_ITEM:
|
|
|
|
case URI_NOTE_ITEM:
|
|
|
|
|
|
|
|
// 获取路径片段中的笔记 ID
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
|
|
|
|
// 如果笔记 ID 小于等于 0，则不允许删除（可能是系统文件夹）
|
|
|
|
/**
|
|
|
|
/**
|
|
|
|
* ID that smaller than 0 is system folder which is not allowed to
|
|
|
|
* ID that smaller than 0 is system folder which is not allowed to
|
|
|
|
* trash
|
|
|
|
* trash
|
|
|
|
@ -206,18 +228,22 @@ public class NotesProvider extends ContentProvider {
|
|
|
|
NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs);
|
|
|
|
NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_DATA:
|
|
|
|
case URI_DATA:
|
|
|
|
|
|
|
|
// 删除数据，设置标志位
|
|
|
|
count = db.delete(TABLE.DATA, selection, selectionArgs);
|
|
|
|
count = db.delete(TABLE.DATA, selection, selectionArgs);
|
|
|
|
deleteData = true;
|
|
|
|
deleteData = true;
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_DATA_ITEM:
|
|
|
|
case URI_DATA_ITEM:
|
|
|
|
|
|
|
|
// 获取路径片段中的数据 ID
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
count = db.delete(TABLE.DATA,
|
|
|
|
count = db.delete(TABLE.DATA,
|
|
|
|
DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs);
|
|
|
|
DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs);
|
|
|
|
deleteData = true;
|
|
|
|
deleteData = true;
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
default:
|
|
|
|
|
|
|
|
// 如果 Uri 不匹配任何已知模式，则抛出异常
|
|
|
|
throw new IllegalArgumentException("Unknown URI " + uri);
|
|
|
|
throw new IllegalArgumentException("Unknown URI " + uri);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 如果删除了数据且有数据被删除，则通知笔记 Uri 和删除的 Uri 数据变化
|
|
|
|
if (count > 0) {
|
|
|
|
if (count > 0) {
|
|
|
|
if (deleteData) {
|
|
|
|
if (deleteData) {
|
|
|
|
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
|
|
|
|
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
|
|
|
|
@ -226,38 +252,44 @@ public class NotesProvider extends ContentProvider {
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return count;
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 重写 ContentProvider 的 update 方法，用于处理数据更新请求
|
|
|
|
@Override
|
|
|
|
@Override
|
|
|
|
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
|
|
|
|
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
|
|
|
|
int count = 0;
|
|
|
|
int count = 0;
|
|
|
|
String id = null;
|
|
|
|
String id = null;
|
|
|
|
SQLiteDatabase db = mHelper.getWritableDatabase();
|
|
|
|
SQLiteDatabase db = mHelper.getWritableDatabase();
|
|
|
|
boolean updateData = false;
|
|
|
|
boolean updateData = false;
|
|
|
|
|
|
|
|
// 根据 Uri 匹配码执行不同的更新操作
|
|
|
|
switch (mMatcher.match(uri)) {
|
|
|
|
switch (mMatcher.match(uri)) {
|
|
|
|
case URI_NOTE:
|
|
|
|
case URI_NOTE:
|
|
|
|
|
|
|
|
// 增加笔记版本号，执行更新操作
|
|
|
|
increaseNoteVersion(-1, selection, selectionArgs);
|
|
|
|
increaseNoteVersion(-1, selection, selectionArgs);
|
|
|
|
count = db.update(TABLE.NOTE, values, selection, selectionArgs);
|
|
|
|
count = db.update(TABLE.NOTE, values, selection, selectionArgs);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_NOTE_ITEM:
|
|
|
|
case URI_NOTE_ITEM:
|
|
|
|
|
|
|
|
// 获取路径片段中的笔记 ID，增加笔记版本号，执行更新操作
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
increaseNoteVersion(Long.valueOf(id), selection, selectionArgs);
|
|
|
|
increaseNoteVersion(Long.valueOf(id), selection, selectionArgs);
|
|
|
|
count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id
|
|
|
|
count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id
|
|
|
|
+ parseSelection(selection), selectionArgs);
|
|
|
|
+ parseSelection(selection), selectionArgs);
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_DATA:
|
|
|
|
case URI_DATA:
|
|
|
|
|
|
|
|
// 更新数据，设置标志位
|
|
|
|
count = db.update(TABLE.DATA, values, selection, selectionArgs);
|
|
|
|
count = db.update(TABLE.DATA, values, selection, selectionArgs);
|
|
|
|
updateData = true;
|
|
|
|
updateData = true;
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
case URI_DATA_ITEM:
|
|
|
|
case URI_DATA_ITEM:
|
|
|
|
|
|
|
|
// 获取路径片段中的数据 ID，更新数据
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
id = uri.getPathSegments().get(1);
|
|
|
|
count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id
|
|
|
|
count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id
|
|
|
|
+ parseSelection(selection), selectionArgs);
|
|
|
|
+ parseSelection(selection), selectionArgs);
|
|
|
|
updateData = true;
|
|
|
|
updateData = true;
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
default:
|
|
|
|
|
|
|
|
// 如果 Uri 不匹配任何已知模式，则抛出异常
|
|
|
|
throw new IllegalArgumentException("Unknown URI " + uri);
|
|
|
|
throw new IllegalArgumentException("Unknown URI " + uri);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 如果更新了数据且有数据被更新，则通知笔记 Uri 和更新的 Uri 数据变化
|
|
|
|
if (count > 0) {
|
|
|
|
if (count > 0) {
|
|
|
|
if (updateData) {
|
|
|
|
if (updateData) {
|
|
|
|
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
|
|
|
|
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
|
|
|
|
@ -266,11 +298,11 @@ public class NotesProvider extends ContentProvider {
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return count;
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 辅助方法，用于解析选择条件，添加括号和 AND 连接符
|
|
|
|
private String parseSelection(String selection) {
|
|
|
|
private String parseSelection(String selection) {
|
|
|
|
return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : "");
|
|
|
|
return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : "");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 增加笔记版本号的方法，根据指定的笔记 ID 和选择条件构建更新 SQL 语句并执行
|
|
|
|
private void increaseNoteVersion(long id, String selection, String[] selectionArgs) {
|
|
|
|
private void increaseNoteVersion(long id, String selection, String[] selectionArgs) {
|
|
|
|
StringBuilder sql = new StringBuilder(120);
|
|
|
|
StringBuilder sql = new StringBuilder(120);
|
|
|
|
sql.append("UPDATE ");
|
|
|
|
sql.append("UPDATE ");
|
|
|
|
@ -295,7 +327,7 @@ public class NotesProvider extends ContentProvider {
|
|
|
|
|
|
|
|
|
|
|
|
mHelper.getWritableDatabase().execSQL(sql.toString());
|
|
|
|
mHelper.getWritableDatabase().execSQL(sql.toString());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// 重写 ContentProvider 的 getType 方法，目前未实现，返回 null
|
|
|
|
@Override
|
|
|
|
@Override
|
|
|
|
public String getType(Uri uri) {
|
|
|
|
public String getType(Uri uri) {
|
|
|
|
// TODO Auto-generated method stub
|
|
|
|
// TODO Auto-generated method stub
|
|
|
|
|
