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@ -15,15 +15,15 @@
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*/
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*/
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package net.micode.notes.model;
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package net.micode.notes.model;
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import android.content.ContentProviderOperation;
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import android.content.ContentProviderOperation;//批量的更新、插入、删除数据。
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import android.content.ContentProviderResult;
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import android.content.ContentProviderResult;//操作的结果
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import android.content.ContentUris;
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import android.content.ContentUris;//用于添加和获取Uri后面的ID
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import android.content.ContentValues;
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import android.content.ContentValues;//一种用来存储基本数据类型数据的存储机制
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import android.content.Context;
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import android.content.Context;//需要用该类来弄清楚调用者的实例
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import android.content.OperationApplicationException;
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import android.content.OperationApplicationException;//操作应用程序容错
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import android.net.Uri;
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import android.net.Uri;//表示待操作的数据
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import android.os.RemoteException;
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import android.os.RemoteException;//远程容错
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import android.util.Log;
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import android.util.Log;//输出日志,比如说出错、警告等
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import net.micode.notes.data.Notes;
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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.CallNote;
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@ -49,16 +49,17 @@ public class Note {
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values.put(NoteColumns.MODIFIED_DATE, createdTime);
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values.put(NoteColumns.MODIFIED_DATE, createdTime);
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values.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
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values.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
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values.put(NoteColumns.LOCAL_MODIFIED, 1);
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values.put(NoteColumns.LOCAL_MODIFIED, 1);
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values.put(NoteColumns.PARENT_ID, folderId);
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values.put(NoteColumns.PARENT_ID, folderId);//将数据写入数据库表格
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Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);
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Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);
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//ContentResolver()主要是实现外部应用对ContentProvider中的数据
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//进行添加、删除、修改和查询操作
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long noteId = 0;
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long noteId = 0;
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try {
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try {
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noteId = Long.valueOf(uri.getPathSegments().get(1));
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noteId = Long.valueOf(uri.getPathSegments().get(1));
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} catch (NumberFormatException e) {
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} catch (NumberFormatException e) {
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Log.e(TAG, "Get note id error :" + e.toString());
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Log.e(TAG, "Get note id error :" + e.toString());
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noteId = 0;
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noteId = 0;
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}
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}//try-catch异常处理
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if (noteId == -1) {
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if (noteId == -1) {
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throw new IllegalStateException("Wrong note id:" + noteId);
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throw new IllegalStateException("Wrong note id:" + noteId);
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}
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}
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@ -68,37 +69,37 @@ public class Note {
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public Note() {
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public Note() {
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mNoteDiffValues = new ContentValues();
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mNoteDiffValues = new ContentValues();
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mNoteData = new NoteData();
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mNoteData = new NoteData();
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}
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}//定义两个变量用来存储便签的数据,一个是存储便签属性、一个是存储便签内容
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public void setNoteValue(String key, String value) {
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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(key, value);
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mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
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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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mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
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}
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}//设置数据库表格的标签属性数据
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public void setTextData(String key, String value) {
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public void setTextData(String key, String value) {
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mNoteData.setTextData(key, value);
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mNoteData.setTextData(key, value);
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}
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}//设置数据库表格的标签文本内容的数据
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public void setTextDataId(long id) {
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public void setTextDataId(long id) {
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mNoteData.setTextDataId(id);
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mNoteData.setTextDataId(id);
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}
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}//设置文本数据的ID
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public long getTextDataId() {
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public long getTextDataId() {
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return mNoteData.mTextDataId;
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return mNoteData.mTextDataId;
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}
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}//得到文本数据的ID
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public void setCallDataId(long id) {
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public void setCallDataId(long id) {
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mNoteData.setCallDataId(id);
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mNoteData.setCallDataId(id);
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}
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}//设置电话号码数据的ID
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public void setCallData(String key, String value) {
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public void setCallData(String key, String value) {
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mNoteData.setCallData(key, value);
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mNoteData.setCallData(key, value);
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}
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}//得到电话号码数据的ID
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public boolean isLocalModified() {
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public boolean isLocalModified() {
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return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
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return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
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}
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}//判断是否是本地修改
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public boolean syncNote(Context context, long noteId) {
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public boolean syncNote(Context context, long noteId) {
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if (noteId <= 0) {
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if (noteId <= 0) {
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@ -128,16 +129,16 @@ public class Note {
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}
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}
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return true;
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return true;
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}
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}//判断数据是否同步
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private class NoteData {
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private class NoteData {//定义一个基本的便签内容的数据类,主要包含文本数据和电话号码数据
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private long mTextDataId;
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private long mTextDataId;
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private ContentValues mTextDataValues;
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private ContentValues mTextDataValues;//文本数据
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private long mCallDataId;
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private long mCallDataId;
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private ContentValues mCallDataValues;
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private ContentValues mCallDataValues;//电话号码数据
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private static final String TAG = "NoteData";
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private static final String TAG = "NoteData";
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@ -147,26 +148,25 @@ public class Note {
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mTextDataId = 0;
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mTextDataId = 0;
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mCallDataId = 0;
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mCallDataId = 0;
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}
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}
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boolean isLocalModified() {//判断当前对象是否有本地修改
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boolean isLocalModified() {
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return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
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return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
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}
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}
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void setTextDataId(long id) {
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void setTextDataId(long id) {//设置文本数据的ID
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if(id <= 0) {
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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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throw new IllegalArgumentException("Text data id should larger than 0");
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}
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}
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mTextDataId = id;
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mTextDataId = id;
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}
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}
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void setCallDataId(long id) {
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void setCallDataId(long id) {//设置电话号码数据的ID
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if (id <= 0) {
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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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throw new IllegalArgumentException("Call data id should larger than 0");
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}
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}
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mCallDataId = id;
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mCallDataId = id;
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}
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}
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void setCallData(String key, String value) {
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void setCallData(String key, String value) {////得到电话号码数据的ID
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mCallDataValues.put(key, 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.LOCAL_MODIFIED, 1);
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mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
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mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
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@ -177,17 +177,17 @@ public class Note {
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mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
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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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mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
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}
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}
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//下面函数的作用是将新的数据通过Uri的操作存储到数据库
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Uri pushIntoContentResolver(Context context, long noteId) {
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Uri pushIntoContentResolver(Context context, long noteId) {
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/**
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/**
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* Check for safety
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* Check for safety
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*/
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*/
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if (noteId <= 0) {
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if (noteId <= 0) {
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throw new IllegalArgumentException("Wrong note id:" + noteId);
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throw new IllegalArgumentException("Wrong note id:" + noteId);
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}
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}//判断数据是否合法
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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ContentProviderOperation.Builder builder = null;
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ContentProviderOperation.Builder builder = null;//数据库的操作列表
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if(mTextDataValues.size() > 0) {
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if(mTextDataValues.size() > 0) {
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mTextDataValues.put(DataColumns.NOTE_ID, noteId);
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mTextDataValues.put(DataColumns.NOTE_ID, noteId);
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@ -197,7 +197,7 @@ public class Note {
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mTextDataValues);
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mTextDataValues);
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try {
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try {
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setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
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setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
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} catch (NumberFormatException e) {
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} catch (NumberFormatException e) {//出错则清空
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Log.e(TAG, "Insert new text data fail with noteId" + noteId);
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Log.e(TAG, "Insert new text data fail with noteId" + noteId);
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mTextDataValues.clear();
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mTextDataValues.clear();
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return null;
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return null;
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@ -209,7 +209,7 @@ public class Note {
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operationList.add(builder.build());
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operationList.add(builder.build());
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}
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}
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mTextDataValues.clear();
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mTextDataValues.clear();
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}
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}//把文本数据存入DataColumns
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if(mCallDataValues.size() > 0) {
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if(mCallDataValues.size() > 0) {
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mCallDataValues.put(DataColumns.NOTE_ID, noteId);
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mCallDataValues.put(DataColumns.NOTE_ID, noteId);
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@ -231,7 +231,7 @@ public class Note {
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operationList.add(builder.build());
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operationList.add(builder.build());
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}
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}
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mCallDataValues.clear();
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mCallDataValues.clear();
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}
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}//把电话号码数据存入DataColumns
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if (operationList.size() > 0) {
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if (operationList.size() > 0) {
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try {
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try {
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@ -246,7 +246,7 @@ public class Note {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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return null;
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return null;
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}
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}
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}
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}//存储过程中的异常处理
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return null;
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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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