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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.tool;
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import android.content.ContentProviderOperation;
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import android.content.ContentProviderResult;
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import android.content.ContentResolver;
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import android.content.ContentUris;
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import android.content.ContentValues;
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import android.content.OperationApplicationException;
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import android.database.Cursor;
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import android.os.RemoteException;
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import android.util.Log;
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import net.micode.notes.data.Notes;
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import net.micode.notes.data.Notes.CallNote;
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import net.micode.notes.data.Notes.NoteColumns;
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import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
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import java.util.ArrayList;
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import java.util.HashSet;
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public class DataUtils {
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public static final String TAG = "DataUtils";
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public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {//直接删除多个笔记
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if (ids == null) {
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Log.d(TAG, "the ids is null");
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return true;
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}
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if (ids.size() == 0) {
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Log.d(TAG, "no id is in the hashset");
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return true;
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}
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//提供一个任务列表
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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for (long id : ids) {
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if(id == Notes.ID_ROOT_FOLDER) {
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Log.e(TAG, "Don't delete system folder root");
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continue;
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}
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));//用newDelete实现删除功能
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operationList.add(builder.build());
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}
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try {//主机名（或叫Authority）用于唯一标识这个ContentProvider，外部调用者可以根据这个标识来找到它。
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
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//数据库事务，数据库事务是由一组数据库操作序列组成，事务作为一个整体被执行
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if (results == null || results.length == 0 || results[0] == null) {
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Log.d(TAG, "delete notes failed, ids:" + ids.toString());
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return false;
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}
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return true;
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} catch (RemoteException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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} catch (OperationApplicationException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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}
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return false;
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}
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public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
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ContentValues values = new ContentValues();
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values.put(NoteColumns.PARENT_ID, desFolderId);
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values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
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values.put(NoteColumns.LOCAL_MODIFIED, 1);
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resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
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}
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public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
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long folderId) {
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if (ids == null) {
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Log.d(TAG, "the ids is null");
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return true;
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}
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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for (long id : ids) {
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
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builder.withValue(NoteColumns.PARENT_ID, folderId);
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builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
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operationList.add(builder.build());
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}
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try {
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
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if (results == null || results.length == 0 || results[0] == null) {
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Log.d(TAG, "delete notes failed, ids:" + ids.toString());
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return false;
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}
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return true;
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} catch (RemoteException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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} catch (OperationApplicationException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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}
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return false;
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}
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/**
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* Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
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*/
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public static int getUserFolderCount(ContentResolver resolver) {//通过withAppendedId方法，为该Uri加上ID
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Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
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new String[] { "COUNT(*)" },
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NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
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new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
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null);
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int count = 0;
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if(cursor != null) {
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if(cursor.moveToFirst()) {
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try {
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count = cursor.getInt(0);
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "get folder count failed:" + e.toString());
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} finally {
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cursor.close();
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}
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}
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}
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return count;
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}
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public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
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Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
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null,
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NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
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new String [] {String.valueOf(type)},
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null);
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boolean exist = false;
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if (cursor != null) {
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if (cursor.getCount() > 0) {//用getcount函数判断cursor是否为空
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exist = true;
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}
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cursor.close();
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}
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return exist;
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}
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public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
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Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
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null, null, null, null);
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boolean exist = false;
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if (cursor != null) {
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if (cursor.getCount() > 0) {
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exist = true;
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}
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cursor.close();
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}
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return exist;
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}
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public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
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Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
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null, null, null, null);
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boolean exist = false;
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if (cursor != null) {
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if (cursor.getCount() > 0) {
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exist = true;
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}
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cursor.close();
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}
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return exist;
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}
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public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
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Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
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NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
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" AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
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" AND " + NoteColumns.SNIPPET + "=?",
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new String[] { name }, null);
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//通过名字查询文件是否存在
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boolean exist = false;
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if(cursor != null) {
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if(cursor.getCount() > 0) {
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exist = true;
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}
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cursor.close();
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}
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return exist;
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}
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public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
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Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
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new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
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NoteColumns.PARENT_ID + "=?",
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new String[] { String.valueOf(folderId) },
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null);
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HashSet<AppWidgetAttribute> set = null;
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if (c != null) {
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if (c.moveToFirst()) {
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set = new HashSet<AppWidgetAttribute>();
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do {
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try {
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AppWidgetAttribute widget = new AppWidgetAttribute();
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widget.widgetId = c.getInt(0);
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widget.widgetType = c.getInt(1);
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set.add(widget);
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, e.toString());
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}
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} while (c.moveToNext());
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}
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c.close();
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}
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return set;
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}
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public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
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Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
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new String [] { CallNote.PHONE_NUMBER },
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CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
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new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
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null);
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if (cursor != null && cursor.moveToFirst()) {
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try {
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return cursor.getString(0);
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "Get call number fails " + e.toString());
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} finally {
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cursor.close();
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}
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}
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return "";
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}
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public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
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Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
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new String [] { CallNote.NOTE_ID },
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CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
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+ CallNote.PHONE_NUMBER + ",?)",
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new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
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null);
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//通过数据库操作，查询条件是（callDate和phoneNumber匹配传入参数的值）
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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try {
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return cursor.getLong(0);
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "Get call note id fails " + e.toString());
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}
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}
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cursor.close();
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}
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return 0;
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}
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public static String getSnippetById(ContentResolver resolver, long noteId) {
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Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
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new String [] { NoteColumns.SNIPPET },
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NoteColumns.ID + "=?",
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new String [] { String.valueOf(noteId)},
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null);
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if (cursor != null) {
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String snippet = "";
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if (cursor.moveToFirst()) {
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snippet = cursor.getString(0);
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}
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cursor.close();
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return snippet;
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}
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throw new IllegalArgumentException("Note is not found with id: " + noteId);
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}
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public static String getFormattedSnippet(String snippet) {
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if (snippet != null) {
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snippet = snippet.trim();
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int index = snippet.indexOf('\n');
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if (index != -1) {
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snippet = snippet.substring(0, index);
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}
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}
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return snippet;
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}
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}
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