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@ -15,6 +15,7 @@
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*/
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package net.micode.notes.model;
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import android.content.ContentProviderOperation;
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import android.content.ContentProviderResult;
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import android.content.ContentUris;
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@ -33,16 +34,23 @@ import net.micode.notes.data.Notes.TextNote;
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import java.util.ArrayList;
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/**
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* 便签数据模型类,负责便签的创建、更新和管理
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* 封装了便签及其关联数据(文本内容、通话记录等)的操作逻辑
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*/
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public class Note {
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private ContentValues mNoteDiffValues;
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private NoteData mNoteData;
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private ContentValues mNoteDiffValues; // 便签差异值,用于记录待更新的便签属性
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private NoteData mNoteData; // 便签关联数据(文本内容、通话记录等)
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private static final String TAG = "Note";
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/**
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* Create a new note id for adding a new note to databases
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* 创建一个新的便签ID并插入到数据库
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* @param context 上下文
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* @param folderId 父文件夹ID
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* @return 返回新创建的便签ID
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*/
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public static synchronized long getNewNoteId(Context context, long folderId) {
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// Create a new note in the database
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// 在数据库中创建新便签
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ContentValues values = new ContentValues();
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long createdTime = System.currentTimeMillis();
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values.put(NoteColumns.CREATED_DATE, createdTime);
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@ -65,41 +73,81 @@ public class Note {
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return noteId;
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}
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/**
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* 构造函数,初始化便签对象
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*/
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public Note() {
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mNoteDiffValues = new ContentValues();
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mNoteData = new NoteData();
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}
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/**
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* 设置便签属性值
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* @param key 属性名
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* @param value 属性值
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*/
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public void setNoteValue(String key, String value) {
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mNoteDiffValues.put(key, value);
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mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
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mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
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}
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/**
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* 设置便签文本内容数据
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* @param key 文本数据键
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* @param value 文本数据值
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*/
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public void setTextData(String key, String value) {
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mNoteData.setTextData(key, value);
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}
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/**
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* 设置文本数据ID
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* @param id 文本数据ID
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*/
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public void setTextDataId(long id) {
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mNoteData.setTextDataId(id);
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}
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/**
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* 获取文本数据ID
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* @return 文本数据ID
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*/
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public long getTextDataId() {
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return mNoteData.mTextDataId;
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}
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/**
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* 设置通话记录数据ID
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* @param id 通话记录数据ID
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*/
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public void setCallDataId(long id) {
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mNoteData.setCallDataId(id);
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}
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/**
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* 设置通话记录数据
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* @param key 通话数据键
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* @param value 通话数据值
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*/
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public void setCallData(String key, String value) {
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mNoteData.setCallData(key, value);
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}
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/**
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* 判断便签是否有本地修改
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* @return 有修改返回true,否则返回false
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*/
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public boolean isLocalModified() {
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return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
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}
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/**
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* 将便签同步到数据库
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* @param context 上下文
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* @param noteId 便签ID
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* @return 同步成功返回true,失败返回false
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*/
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public boolean syncNote(Context context, long noteId) {
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if (noteId <= 0) {
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throw new IllegalArgumentException("Wrong note id:" + noteId);
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@ -110,15 +158,15 @@ public class Note {
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}
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/**
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* In theory, once data changed, the note should be updated on {@link NoteColumns#LOCAL_MODIFIED} and
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* {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails, we also update the
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* note data info
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* 理论上,一旦数据发生变化,便签应该在{@link NoteColumns#LOCAL_MODIFIED}和
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* {@link NoteColumns#MODIFIED_DATE}上更新。为了数据安全,即使便签更新失败,我们也会更新
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* 便签数据信息
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*/
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if (context.getContentResolver().update(
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ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null,
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null) == 0) {
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Log.e(TAG, "Update note error, should not happen");
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// Do not return, fall through
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// 不返回,继续执行
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}
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mNoteDiffValues.clear();
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@ -130,17 +178,19 @@ public class Note {
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return true;
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}
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/**
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* 便签关联数据的内部类,管理便签的文本内容和通话记录等数据
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*/
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private class NoteData {
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private long mTextDataId;
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private ContentValues mTextDataValues;
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private long mCallDataId;
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private ContentValues mCallDataValues;
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private long mTextDataId; // 文本数据ID
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private ContentValues mTextDataValues; // 文本数据值
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private long mCallDataId; // 通话记录数据ID
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private ContentValues mCallDataValues; // 通话记录数据值
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private static final String TAG = "NoteData";
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/**
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* 构造函数,初始化便签数据对象
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*/
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public NoteData() {
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mTextDataValues = new ContentValues();
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mCallDataValues = new ContentValues();
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@ -148,10 +198,18 @@ public class Note {
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mCallDataId = 0;
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}
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/**
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* 判断便签数据是否有本地修改
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* @return 有修改返回true,否则返回false
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*/
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boolean isLocalModified() {
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return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
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}
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/**
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* 设置文本数据ID
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* @param id 文本数据ID
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*/
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void setTextDataId(long id) {
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if(id <= 0) {
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throw new IllegalArgumentException("Text data id should larger than 0");
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@ -159,6 +217,10 @@ public class Note {
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mTextDataId = id;
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}
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/**
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* 设置通话记录数据ID
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* @param id 通话记录数据ID
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*/
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void setCallDataId(long id) {
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if (id <= 0) {
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throw new IllegalArgumentException("Call data id should larger than 0");
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@ -166,21 +228,37 @@ public class Note {
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mCallDataId = id;
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}
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/**
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* 设置通话记录数据
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* @param key 通话数据键
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* @param value 通话数据值
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*/
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void setCallData(String key, String value) {
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mCallDataValues.put(key, value);
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mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
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mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
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}
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/**
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* 设置文本数据
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* @param key 文本数据键
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* @param value 文本数据值
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*/
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void setTextData(String key, String value) {
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mTextDataValues.put(key, value);
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mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
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mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
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}
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/**
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* 将便签数据推送到内容提供者(数据库)
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* @param context 上下文
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* @param noteId 便签ID
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* @return 操作成功返回便签URI,失败返回null
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*/
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Uri pushIntoContentResolver(Context context, long noteId) {
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/**
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* Check for safety
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* 安全检查
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*/
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if (noteId <= 0) {
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throw new IllegalArgumentException("Wrong note id:" + noteId);
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@ -189,9 +267,11 @@ public class Note {
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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ContentProviderOperation.Builder builder = null;
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// 处理文本数据
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if(mTextDataValues.size() > 0) {
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mTextDataValues.put(DataColumns.NOTE_ID, noteId);
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if (mTextDataId == 0) {
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// 插入新文本数据
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mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);
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Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
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mTextDataValues);
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@ -203,6 +283,7 @@ public class Note {
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return null;
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}
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} else {
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// 更新现有文本数据
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builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
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Notes.CONTENT_DATA_URI, mTextDataId));
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builder.withValues(mTextDataValues);
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@ -211,9 +292,11 @@ public class Note {
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mTextDataValues.clear();
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}
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// 处理通话记录数据
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if(mCallDataValues.size() > 0) {
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mCallDataValues.put(DataColumns.NOTE_ID, noteId);
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if (mCallDataId == 0) {
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// 插入新通话记录数据
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mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE);
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Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
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mCallDataValues);
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@ -225,6 +308,7 @@ public class Note {
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return null;
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}
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} else {
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// 更新现有通话记录数据
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builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
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Notes.CONTENT_DATA_URI, mCallDataId));
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builder.withValues(mCallDataValues);
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@ -233,6 +317,7 @@ public class Note {
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mCallDataValues.clear();
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}
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// 批量执行ContentProvider操作
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if (operationList.size() > 0) {
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try {
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ContentProviderResult[] results = context.getContentResolver().applyBatch(
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@ -250,4 +335,4 @@ public class Note {
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return null;
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}
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}
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}
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}
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