|  |  |  | @ -35,12 +35,20 @@ import java.io.FileOutputStream; | 
			
		
	
		
			
				
					|  |  |  |  | import java.io.IOException; | 
			
		
	
		
			
				
					|  |  |  |  | import java.io.PrintStream; | 
			
		
	
		
			
				
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					|  |  |  |  | /** | 
			
		
	
		
			
				
					|  |  |  |  |  * 备份工具类,提供将笔记数据导出为文本文件的功能 | 
			
		
	
		
			
				
					|  |  |  |  |  */ | 
			
		
	
		
			
				
					|  |  |  |  | public class BackupUtils { | 
			
		
	
		
			
				
					|  |  |  |  |     private static final String TAG = "BackupUtils"; | 
			
		
	
		
			
				
					|  |  |  |  |     // Singleton stuff
 | 
			
		
	
		
			
				
					|  |  |  |  |      | 
			
		
	
		
			
				
					|  |  |  |  |     // 单例模式实现
 | 
			
		
	
		
			
				
					|  |  |  |  |     private static BackupUtils sInstance; | 
			
		
	
		
			
				
					|  |  |  |  | 
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					|  |  |  |  |     /** | 
			
		
	
		
			
				
					|  |  |  |  |      * 获取BackupUtils实例(单例模式) | 
			
		
	
		
			
				
					|  |  |  |  |      * @param context 上下文对象 | 
			
		
	
		
			
				
					|  |  |  |  |      * @return BackupUtils实例 | 
			
		
	
		
			
				
					|  |  |  |  |      */ | 
			
		
	
		
			
				
					|  |  |  |  |     public static synchronized BackupUtils getInstance(Context context) { | 
			
		
	
		
			
				
					|  |  |  |  |         if (sInstance == null) { | 
			
		
	
		
			
				
					|  |  |  |  |             sInstance = new BackupUtils(context); | 
			
		
	
	
		
			
				
					|  |  |  | @ -49,43 +57,61 @@ public class BackupUtils { | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
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					|  |  |  |  |     /** | 
			
		
	
		
			
				
					|  |  |  |  |      * Following states are signs to represents backup or restore | 
			
		
	
		
			
				
					|  |  |  |  |      * status | 
			
		
	
		
			
				
					|  |  |  |  |      * 备份/恢复状态码定义 | 
			
		
	
		
			
				
					|  |  |  |  |      */ | 
			
		
	
		
			
				
					|  |  |  |  |     // Currently, the sdcard is not mounted
 | 
			
		
	
		
			
				
					|  |  |  |  |     public static final int STATE_SD_CARD_UNMOUONTED           = 0; | 
			
		
	
		
			
				
					|  |  |  |  |     // The backup file not exist
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					|  |  |  |  |     public static final int STATE_BACKUP_FILE_NOT_EXIST        = 1; | 
			
		
	
		
			
				
					|  |  |  |  |     // The data is not well formated, may be changed by other programs
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					|  |  |  |  |     public static final int STATE_DATA_DESTROIED               = 2; | 
			
		
	
		
			
				
					|  |  |  |  |     // Some run-time exception which causes restore or backup fails
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					|  |  |  |  |     public static final int STATE_SYSTEM_ERROR                 = 3; | 
			
		
	
		
			
				
					|  |  |  |  |     // Backup or restore success
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					|  |  |  |  |     public static final int STATE_SUCCESS                      = 4; | 
			
		
	
		
			
				
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					|  |  |  |  |     private TextExport mTextExport; | 
			
		
	
		
			
				
					|  |  |  |  |     public static final int STATE_SD_CARD_UNMOUONTED = 0;      // SD卡未挂载
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					|  |  |  |  |     public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;   // 备份文件不存在
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					|  |  |  |  |     public static final int STATE_DATA_DESTROIED = 2;          // 数据被破坏
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					|  |  |  |  |     public static final int STATE_SYSTEM_ERROR = 3;            // 系统错误
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					|  |  |  |  |     public static final int STATE_SUCCESS = 4;                 // 操作成功
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					|  |  |  |  |     private TextExport mTextExport;  // 文本导出处理器
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					|  |  |  |  |     /** | 
			
		
	
		
			
				
					|  |  |  |  |      * 私有构造函数 | 
			
		
	
		
			
				
					|  |  |  |  |      * @param context 上下文对象 | 
			
		
	
		
			
				
					|  |  |  |  |      */ | 
			
		
	
		
			
				
					|  |  |  |  |     private BackupUtils(Context context) { | 
			
		
	
		
			
				
					|  |  |  |  |         mTextExport = new TextExport(context); | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
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					|  |  |  |  |     /** | 
			
		
	
		
			
				
					|  |  |  |  |      * 检查外部存储是否可用 | 
			
		
	
		
			
				
					|  |  |  |  |      * @return true如果外部存储已挂载且可写 | 
			
		
	
		
			
				
					|  |  |  |  |      */ | 
			
		
	
		
			
				
					|  |  |  |  |     private static boolean externalStorageAvailable() { | 
			
		
	
		
			
				
					|  |  |  |  |         return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
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					|  |  |  |  |     /** | 
			
		
	
		
			
				
					|  |  |  |  |      * 执行导出到文本文件操作 | 
			
		
	
		
			
				
					|  |  |  |  |      * @return 操作状态码 | 
			
		
	
		
			
				
					|  |  |  |  |      */ | 
			
		
	
		
			
				
					|  |  |  |  |     public int exportToText() { | 
			
		
	
		
			
				
					|  |  |  |  |         return mTextExport.exportToText(); | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
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					|  |  |  |  |     /** | 
			
		
	
		
			
				
					|  |  |  |  |      * 获取导出的文本文件名 | 
			
		
	
		
			
				
					|  |  |  |  |      * @return 文件名 | 
			
		
	
		
			
				
					|  |  |  |  |      */ | 
			
		
	
		
			
				
					|  |  |  |  |     public String getExportedTextFileName() { | 
			
		
	
		
			
				
					|  |  |  |  |         return mTextExport.mFileName; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
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					|  |  |  |  |     /** | 
			
		
	
		
			
				
					|  |  |  |  |      * 获取导出的文本文件目录 | 
			
		
	
		
			
				
					|  |  |  |  |      * @return 文件目录 | 
			
		
	
		
			
				
					|  |  |  |  |      */ | 
			
		
	
		
			
				
					|  |  |  |  |     public String getExportedTextFileDir() { | 
			
		
	
		
			
				
					|  |  |  |  |         return mTextExport.mFileDirectory; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
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					|  |  |  |  |     /** | 
			
		
	
		
			
				
					|  |  |  |  |      * 内部类:处理文本导出逻辑 | 
			
		
	
		
			
				
					|  |  |  |  |      */ | 
			
		
	
		
			
				
					|  |  |  |  |     private static class TextExport { | 
			
		
	
		
			
				
					|  |  |  |  |         // 笔记查询的列名投影
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					|  |  |  |  |         private static final String[] NOTE_PROJECTION = { | 
			
		
	
		
			
				
					|  |  |  |  |                 NoteColumns.ID, | 
			
		
	
		
			
				
					|  |  |  |  |                 NoteColumns.MODIFIED_DATE, | 
			
		
	
	
		
			
				
					|  |  |  | @ -93,12 +119,12 @@ public class BackupUtils { | 
			
		
	
		
			
				
					|  |  |  |  |                 NoteColumns.TYPE | 
			
		
	
		
			
				
					|  |  |  |  |         }; | 
			
		
	
		
			
				
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					|  |  |  |  |         // 笔记列索引
 | 
			
		
	
		
			
				
					|  |  |  |  |         private static final int NOTE_COLUMN_ID = 0; | 
			
		
	
		
			
				
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					|  |  |  |  |         private static final int NOTE_COLUMN_MODIFIED_DATE = 1; | 
			
		
	
		
			
				
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					|  |  |  |  |         private static final int NOTE_COLUMN_SNIPPET = 2; | 
			
		
	
		
			
				
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					|  |  |  |  |         // 数据查询的列名投影
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					|  |  |  |  |         private static final String[] DATA_PROJECTION = { | 
			
		
	
		
			
				
					|  |  |  |  |                 DataColumns.CONTENT, | 
			
		
	
		
			
				
					|  |  |  |  |                 DataColumns.MIME_TYPE, | 
			
		
	
	
		
			
				
					|  |  |  | @ -108,52 +134,68 @@ public class BackupUtils { | 
			
		
	
		
			
				
					|  |  |  |  |                 DataColumns.DATA4, | 
			
		
	
		
			
				
					|  |  |  |  |         }; | 
			
		
	
		
			
				
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					|  |  |  |  |         // 数据列索引
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					|  |  |  |  |         private static final int DATA_COLUMN_CONTENT = 0; | 
			
		
	
		
			
				
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					|  |  |  |  |         private static final int DATA_COLUMN_MIME_TYPE = 1; | 
			
		
	
		
			
				
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					|  |  |  |  |         private static final int DATA_COLUMN_CALL_DATE = 2; | 
			
		
	
		
			
				
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					|  |  |  |  |         private static final int DATA_COLUMN_PHONE_NUMBER = 4; | 
			
		
	
		
			
				
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					|  |  |  |  |         private final String [] TEXT_FORMAT; | 
			
		
	
		
			
				
					|  |  |  |  |         private static final int FORMAT_FOLDER_NAME          = 0; | 
			
		
	
		
			
				
					|  |  |  |  |         private static final int FORMAT_NOTE_DATE            = 1; | 
			
		
	
		
			
				
					|  |  |  |  |         private static final int FORMAT_NOTE_CONTENT         = 2; | 
			
		
	
		
			
				
					|  |  |  |  |         // 文本格式定义(从资源文件中加载)
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					|  |  |  |  |         private final String[] TEXT_FORMAT; | 
			
		
	
		
			
				
					|  |  |  |  |         private static final int FORMAT_FOLDER_NAME = 0;   // 文件夹名称格式
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					|  |  |  |  |         private static final int FORMAT_NOTE_DATE = 1;     // 笔记日期格式
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					|  |  |  |  |         private static final int FORMAT_NOTE_CONTENT = 2;  // 笔记内容格式
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					|  |  |  |  |         private Context mContext; | 
			
		
	
		
			
				
					|  |  |  |  |         private String mFileName; | 
			
		
	
		
			
				
					|  |  |  |  |         private String mFileDirectory; | 
			
		
	
		
			
				
					|  |  |  |  |         private Context mContext;          // 上下文对象
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					|  |  |  |  |         private String mFileName;          // 导出文件名
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					|  |  |  |  |         private String mFileDirectory;     // 导出文件目录
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					|  |  |  |  |         /** | 
			
		
	
		
			
				
					|  |  |  |  |          * 构造函数 | 
			
		
	
		
			
				
					|  |  |  |  |          * @param context 上下文对象 | 
			
		
	
		
			
				
					|  |  |  |  |          */ | 
			
		
	
		
			
				
					|  |  |  |  |         public TextExport(Context context) { | 
			
		
	
		
			
				
					|  |  |  |  |             // 从资源文件中加载文本格式
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					|  |  |  |  |             TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); | 
			
		
	
		
			
				
					|  |  |  |  |             mContext = context; | 
			
		
	
		
			
				
					|  |  |  |  |             mFileName = ""; | 
			
		
	
		
			
				
					|  |  |  |  |             mFileDirectory = ""; | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
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					|  |  |  |  |         /** | 
			
		
	
		
			
				
					|  |  |  |  |          * 获取指定格式的字符串 | 
			
		
	
		
			
				
					|  |  |  |  |          * @param id 格式ID | 
			
		
	
		
			
				
					|  |  |  |  |          * @return 格式字符串 | 
			
		
	
		
			
				
					|  |  |  |  |          */ | 
			
		
	
		
			
				
					|  |  |  |  |         private String getFormat(int id) { | 
			
		
	
		
			
				
					|  |  |  |  |             return TEXT_FORMAT[id]; | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
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					|  |  |  |  |         /** | 
			
		
	
		
			
				
					|  |  |  |  |          * Export the folder identified by folder id to text | 
			
		
	
		
			
				
					|  |  |  |  |          * 将指定文件夹下的笔记导出到文本 | 
			
		
	
		
			
				
					|  |  |  |  |          * @param folderId 文件夹ID | 
			
		
	
		
			
				
					|  |  |  |  |          * @param ps 打印流 | 
			
		
	
		
			
				
					|  |  |  |  |          */ | 
			
		
	
		
			
				
					|  |  |  |  |         private void exportFolderToText(String folderId, PrintStream ps) { | 
			
		
	
		
			
				
					|  |  |  |  |             // Query notes belong to this folder
 | 
			
		
	
		
			
				
					|  |  |  |  |             Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, | 
			
		
	
		
			
				
					|  |  |  |  |                     NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { | 
			
		
	
		
			
				
					|  |  |  |  |                         folderId | 
			
		
	
		
			
				
					|  |  |  |  |                     }, null); | 
			
		
	
		
			
				
					|  |  |  |  |             // 查询属于该文件夹的所有笔记
 | 
			
		
	
		
			
				
					|  |  |  |  |             Cursor notesCursor = mContext.getContentResolver().query( | 
			
		
	
		
			
				
					|  |  |  |  |                     Notes.CONTENT_NOTE_URI, | 
			
		
	
		
			
				
					|  |  |  |  |                     NOTE_PROJECTION, | 
			
		
	
		
			
				
					|  |  |  |  |                     NoteColumns.PARENT_ID + "=?", | 
			
		
	
		
			
				
					|  |  |  |  |                     new String[]{folderId}, | 
			
		
	
		
			
				
					|  |  |  |  |                     null); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             if (notesCursor != null) { | 
			
		
	
		
			
				
					|  |  |  |  |                 if (notesCursor.moveToFirst()) { | 
			
		
	
		
			
				
					|  |  |  |  |                     do { | 
			
		
	
		
			
				
					|  |  |  |  |                         // Print note's last modified date
 | 
			
		
	
		
			
				
					|  |  |  |  |                         ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                 mContext.getString(R.string.format_datetime_mdhm), | 
			
		
	
		
			
				
					|  |  |  |  |                                 notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); | 
			
		
	
		
			
				
					|  |  |  |  |                         // Query data belong to this note
 | 
			
		
	
		
			
				
					|  |  |  |  |                         // 打印笔记的最后修改日期
 | 
			
		
	
		
			
				
					|  |  |  |  |                         ps.println(String.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                 getFormat(FORMAT_NOTE_DATE), | 
			
		
	
		
			
				
					|  |  |  |  |                                 DateFormat.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                         mContext.getString(R.string.format_datetime_mdhm), | 
			
		
	
		
			
				
					|  |  |  |  |                                         notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))); | 
			
		
	
		
			
				
					|  |  |  |  |                          | 
			
		
	
		
			
				
					|  |  |  |  |                         // 导出该笔记的内容
 | 
			
		
	
		
			
				
					|  |  |  |  |                         String noteId = notesCursor.getString(NOTE_COLUMN_ID); | 
			
		
	
		
			
				
					|  |  |  |  |                         exportNoteToText(noteId, ps); | 
			
		
	
		
			
				
					|  |  |  |  |                     } while (notesCursor.moveToNext()); | 
			
		
	
	
		
			
				
					|  |  |  | @ -163,41 +205,56 @@ public class BackupUtils { | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |         /** | 
			
		
	
		
			
				
					|  |  |  |  |          * Export note identified by id to a print stream | 
			
		
	
		
			
				
					|  |  |  |  |          * 将指定笔记导出到文本 | 
			
		
	
		
			
				
					|  |  |  |  |          * @param noteId 笔记ID | 
			
		
	
		
			
				
					|  |  |  |  |          * @param ps 打印流 | 
			
		
	
		
			
				
					|  |  |  |  |          */ | 
			
		
	
		
			
				
					|  |  |  |  |         private void exportNoteToText(String noteId, PrintStream ps) { | 
			
		
	
		
			
				
					|  |  |  |  |             Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, | 
			
		
	
		
			
				
					|  |  |  |  |                     DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { | 
			
		
	
		
			
				
					|  |  |  |  |                         noteId | 
			
		
	
		
			
				
					|  |  |  |  |                     }, null); | 
			
		
	
		
			
				
					|  |  |  |  |             // 查询该笔记的所有数据项
 | 
			
		
	
		
			
				
					|  |  |  |  |             Cursor dataCursor = mContext.getContentResolver().query( | 
			
		
	
		
			
				
					|  |  |  |  |                     Notes.CONTENT_DATA_URI, | 
			
		
	
		
			
				
					|  |  |  |  |                     DATA_PROJECTION, | 
			
		
	
		
			
				
					|  |  |  |  |                     DataColumns.NOTE_ID + "=?", | 
			
		
	
		
			
				
					|  |  |  |  |                     new String[]{noteId}, | 
			
		
	
		
			
				
					|  |  |  |  |                     null); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             if (dataCursor != null) { | 
			
		
	
		
			
				
					|  |  |  |  |                 if (dataCursor.moveToFirst()) { | 
			
		
	
		
			
				
					|  |  |  |  |                     do { | 
			
		
	
		
			
				
					|  |  |  |  |                         String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); | 
			
		
	
		
			
				
					|  |  |  |  |                          | 
			
		
	
		
			
				
					|  |  |  |  |                         // 处理通话记录类型的笔记
 | 
			
		
	
		
			
				
					|  |  |  |  |                         if (DataConstants.CALL_NOTE.equals(mimeType)) { | 
			
		
	
		
			
				
					|  |  |  |  |                             // Print phone number
 | 
			
		
	
		
			
				
					|  |  |  |  |                             String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); | 
			
		
	
		
			
				
					|  |  |  |  |                             long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); | 
			
		
	
		
			
				
					|  |  |  |  |                             String location = dataCursor.getString(DATA_COLUMN_CONTENT); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |                             if (!TextUtils.isEmpty(phoneNumber)) { | 
			
		
	
		
			
				
					|  |  |  |  |                                 ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), | 
			
		
	
		
			
				
					|  |  |  |  |                                 ps.println(String.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                         getFormat(FORMAT_NOTE_CONTENT), | 
			
		
	
		
			
				
					|  |  |  |  |                                         phoneNumber)); | 
			
		
	
		
			
				
					|  |  |  |  |                             } | 
			
		
	
		
			
				
					|  |  |  |  |                             // Print call date
 | 
			
		
	
		
			
				
					|  |  |  |  |                             ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat | 
			
		
	
		
			
				
					|  |  |  |  |                                     .format(mContext.getString(R.string.format_datetime_mdhm), | 
			
		
	
		
			
				
					|  |  |  |  |                              | 
			
		
	
		
			
				
					|  |  |  |  |                             // 打印通话日期
 | 
			
		
	
		
			
				
					|  |  |  |  |                             ps.println(String.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                     getFormat(FORMAT_NOTE_CONTENT), | 
			
		
	
		
			
				
					|  |  |  |  |                                     DateFormat.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                             mContext.getString(R.string.format_datetime_mdhm), | 
			
		
	
		
			
				
					|  |  |  |  |                                             callDate))); | 
			
		
	
		
			
				
					|  |  |  |  |                             // Print call attachment location
 | 
			
		
	
		
			
				
					|  |  |  |  |                              | 
			
		
	
		
			
				
					|  |  |  |  |                             // 打印通话位置信息
 | 
			
		
	
		
			
				
					|  |  |  |  |                             if (!TextUtils.isEmpty(location)) { | 
			
		
	
		
			
				
					|  |  |  |  |                                 ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), | 
			
		
	
		
			
				
					|  |  |  |  |                                 ps.println(String.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                         getFormat(FORMAT_NOTE_CONTENT), | 
			
		
	
		
			
				
					|  |  |  |  |                                         location)); | 
			
		
	
		
			
				
					|  |  |  |  |                             } | 
			
		
	
		
			
				
					|  |  |  |  |                         } else if (DataConstants.NOTE.equals(mimeType)) { | 
			
		
	
		
			
				
					|  |  |  |  |                         }  | 
			
		
	
		
			
				
					|  |  |  |  |                         // 处理普通笔记类型
 | 
			
		
	
		
			
				
					|  |  |  |  |                         else if (DataConstants.NOTE.equals(mimeType)) { | 
			
		
	
		
			
				
					|  |  |  |  |                             String content = dataCursor.getString(DATA_COLUMN_CONTENT); | 
			
		
	
		
			
				
					|  |  |  |  |                             if (!TextUtils.isEmpty(content)) { | 
			
		
	
		
			
				
					|  |  |  |  |                                 ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), | 
			
		
	
		
			
				
					|  |  |  |  |                                 ps.println(String.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                         getFormat(FORMAT_NOTE_CONTENT), | 
			
		
	
		
			
				
					|  |  |  |  |                                         content)); | 
			
		
	
		
			
				
					|  |  |  |  |                             } | 
			
		
	
		
			
				
					|  |  |  |  |                         } | 
			
		
	
	
		
			
				
					|  |  |  | @ -205,51 +262,60 @@ public class BackupUtils { | 
			
		
	
		
			
				
					|  |  |  |  |                 } | 
			
		
	
		
			
				
					|  |  |  |  |                 dataCursor.close(); | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |             // print a line separator between note
 | 
			
		
	
		
			
				
					|  |  |  |  |              | 
			
		
	
		
			
				
					|  |  |  |  |             // 在笔记之间打印分隔线
 | 
			
		
	
		
			
				
					|  |  |  |  |             try { | 
			
		
	
		
			
				
					|  |  |  |  |                 ps.write(new byte[] { | 
			
		
	
		
			
				
					|  |  |  |  |                         Character.LINE_SEPARATOR, Character.LETTER_NUMBER | 
			
		
	
		
			
				
					|  |  |  |  |                 }); | 
			
		
	
		
			
				
					|  |  |  |  |                 ps.write(new byte[]{Character.LINE_SEPARATOR, Character.LETTER_NUMBER}); | 
			
		
	
		
			
				
					|  |  |  |  |             } catch (IOException e) { | 
			
		
	
		
			
				
					|  |  |  |  |                 Log.e(TAG, e.toString()); | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |         /** | 
			
		
	
		
			
				
					|  |  |  |  |          * Note will be exported as text which is user readable | 
			
		
	
		
			
				
					|  |  |  |  |          * 执行导出到文本文件操作 | 
			
		
	
		
			
				
					|  |  |  |  |          * @return 操作状态码 | 
			
		
	
		
			
				
					|  |  |  |  |          */ | 
			
		
	
		
			
				
					|  |  |  |  |         public int exportToText() { | 
			
		
	
		
			
				
					|  |  |  |  |             // 检查SD卡是否可用
 | 
			
		
	
		
			
				
					|  |  |  |  |             if (!externalStorageAvailable()) { | 
			
		
	
		
			
				
					|  |  |  |  |                 Log.d(TAG, "Media was not mounted"); | 
			
		
	
		
			
				
					|  |  |  |  |                 return STATE_SD_CARD_UNMOUONTED; | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 获取打印流
 | 
			
		
	
		
			
				
					|  |  |  |  |             PrintStream ps = getExportToTextPrintStream(); | 
			
		
	
		
			
				
					|  |  |  |  |             if (ps == null) { | 
			
		
	
		
			
				
					|  |  |  |  |                 Log.e(TAG, "get print stream error"); | 
			
		
	
		
			
				
					|  |  |  |  |                 return STATE_SYSTEM_ERROR; | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |             // First export folder and its notes
 | 
			
		
	
		
			
				
					|  |  |  |  |              | 
			
		
	
		
			
				
					|  |  |  |  |             // 首先导出文件夹及其笔记
 | 
			
		
	
		
			
				
					|  |  |  |  |             Cursor folderCursor = mContext.getContentResolver().query( | 
			
		
	
		
			
				
					|  |  |  |  |                     Notes.CONTENT_NOTE_URI, | 
			
		
	
		
			
				
					|  |  |  |  |                     NOTE_PROJECTION, | 
			
		
	
		
			
				
					|  |  |  |  |                     "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND " | 
			
		
	
		
			
				
					|  |  |  |  |                             + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR " | 
			
		
	
		
			
				
					|  |  |  |  |                             + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null); | 
			
		
	
		
			
				
					|  |  |  |  |                             + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, | 
			
		
	
		
			
				
					|  |  |  |  |                     null, null); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             if (folderCursor != null) { | 
			
		
	
		
			
				
					|  |  |  |  |                 if (folderCursor.moveToFirst()) { | 
			
		
	
		
			
				
					|  |  |  |  |                     do { | 
			
		
	
		
			
				
					|  |  |  |  |                         // Print folder's name
 | 
			
		
	
		
			
				
					|  |  |  |  |                         // 打印文件夹名称
 | 
			
		
	
		
			
				
					|  |  |  |  |                         String folderName = ""; | 
			
		
	
		
			
				
					|  |  |  |  |                         if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { | 
			
		
	
		
			
				
					|  |  |  |  |                             folderName = mContext.getString(R.string.call_record_folder_name); | 
			
		
	
		
			
				
					|  |  |  |  |                         } else { | 
			
		
	
		
			
				
					|  |  |  |  |                             folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET); | 
			
		
	
		
			
				
					|  |  |  |  |                         } | 
			
		
	
		
			
				
					|  |  |  |  |                          | 
			
		
	
		
			
				
					|  |  |  |  |                         if (!TextUtils.isEmpty(folderName)) { | 
			
		
	
		
			
				
					|  |  |  |  |                             ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName)); | 
			
		
	
		
			
				
					|  |  |  |  |                             ps.println(String.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                     getFormat(FORMAT_FOLDER_NAME), | 
			
		
	
		
			
				
					|  |  |  |  |                                     folderName)); | 
			
		
	
		
			
				
					|  |  |  |  |                         } | 
			
		
	
		
			
				
					|  |  |  |  |                          | 
			
		
	
		
			
				
					|  |  |  |  |                         // 导出该文件夹下的笔记
 | 
			
		
	
		
			
				
					|  |  |  |  |                         String folderId = folderCursor.getString(NOTE_COLUMN_ID); | 
			
		
	
		
			
				
					|  |  |  |  |                         exportFolderToText(folderId, ps); | 
			
		
	
		
			
				
					|  |  |  |  |                     } while (folderCursor.moveToNext()); | 
			
		
	
	
		
			
				
					|  |  |  | @ -257,47 +323,56 @@ public class BackupUtils { | 
			
		
	
		
			
				
					|  |  |  |  |                 folderCursor.close(); | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             // Export notes in root's folder
 | 
			
		
	
		
			
				
					|  |  |  |  |             // 导出根目录下的笔记
 | 
			
		
	
		
			
				
					|  |  |  |  |             Cursor noteCursor = mContext.getContentResolver().query( | 
			
		
	
		
			
				
					|  |  |  |  |                     Notes.CONTENT_NOTE_URI, | 
			
		
	
		
			
				
					|  |  |  |  |                     NOTE_PROJECTION, | 
			
		
	
		
			
				
					|  |  |  |  |                     NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID | 
			
		
	
		
			
				
					|  |  |  |  |                             + "=0", null, null); | 
			
		
	
		
			
				
					|  |  |  |  |                     NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID + "=0", | 
			
		
	
		
			
				
					|  |  |  |  |                     null, null); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             if (noteCursor != null) { | 
			
		
	
		
			
				
					|  |  |  |  |                 if (noteCursor.moveToFirst()) { | 
			
		
	
		
			
				
					|  |  |  |  |                     do { | 
			
		
	
		
			
				
					|  |  |  |  |                         ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                 mContext.getString(R.string.format_datetime_mdhm), | 
			
		
	
		
			
				
					|  |  |  |  |                                 noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); | 
			
		
	
		
			
				
					|  |  |  |  |                         // Query data belong to this note
 | 
			
		
	
		
			
				
					|  |  |  |  |                         ps.println(String.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                 getFormat(FORMAT_NOTE_DATE), | 
			
		
	
		
			
				
					|  |  |  |  |                                 DateFormat.format( | 
			
		
	
		
			
				
					|  |  |  |  |                                         mContext.getString(R.string.format_datetime_mdhm), | 
			
		
	
		
			
				
					|  |  |  |  |                                         noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))); | 
			
		
	
		
			
				
					|  |  |  |  |                          | 
			
		
	
		
			
				
					|  |  |  |  |                         // 导出该笔记的内容
 | 
			
		
	
		
			
				
					|  |  |  |  |                         String noteId = noteCursor.getString(NOTE_COLUMN_ID); | 
			
		
	
		
			
				
					|  |  |  |  |                         exportNoteToText(noteId, ps); | 
			
		
	
		
			
				
					|  |  |  |  |                     } while (noteCursor.moveToNext()); | 
			
		
	
		
			
				
					|  |  |  |  |                 } | 
			
		
	
		
			
				
					|  |  |  |  |                 noteCursor.close(); | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |              | 
			
		
	
		
			
				
					|  |  |  |  |             ps.close(); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |             return STATE_SUCCESS; | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |         /** | 
			
		
	
		
			
				
					|  |  |  |  |          * Get a print stream pointed to the file {@generateExportedTextFile} | 
			
		
	
		
			
				
					|  |  |  |  |          * 获取指向导出文件的打印流 | 
			
		
	
		
			
				
					|  |  |  |  |          * @return PrintStream对象,失败返回null | 
			
		
	
		
			
				
					|  |  |  |  |          */ | 
			
		
	
		
			
				
					|  |  |  |  |         private PrintStream getExportToTextPrintStream() { | 
			
		
	
		
			
				
					|  |  |  |  |             File file = generateFileMountedOnSDcard(mContext, R.string.file_path, | 
			
		
	
		
			
				
					|  |  |  |  |             // 在SD卡上创建导出文件
 | 
			
		
	
		
			
				
					|  |  |  |  |             File file = generateFileMountedOnSDcard( | 
			
		
	
		
			
				
					|  |  |  |  |                     mContext, | 
			
		
	
		
			
				
					|  |  |  |  |                     R.string.file_path, | 
			
		
	
		
			
				
					|  |  |  |  |                     R.string.file_name_txt_format); | 
			
		
	
		
			
				
					|  |  |  |  |              | 
			
		
	
		
			
				
					|  |  |  |  |             if (file == null) { | 
			
		
	
		
			
				
					|  |  |  |  |                 Log.e(TAG, "create file to exported failed"); | 
			
		
	
		
			
				
					|  |  |  |  |                 return null; | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |              | 
			
		
	
		
			
				
					|  |  |  |  |             mFileName = file.getName(); | 
			
		
	
		
			
				
					|  |  |  |  |             mFileDirectory = mContext.getString(R.string.file_path); | 
			
		
	
		
			
				
					|  |  |  |  |             PrintStream ps = null; | 
			
		
	
		
			
				
					|  |  |  |  |              | 
			
		
	
		
			
				
					|  |  |  |  |             try { | 
			
		
	
		
			
				
					|  |  |  |  |                 FileOutputStream fos = new FileOutputStream(file); | 
			
		
	
		
			
				
					|  |  |  |  |                 ps = new PrintStream(fos); | 
			
		
	
		
			
				
					|  |  |  |  |                 return new PrintStream(fos); | 
			
		
	
		
			
				
					|  |  |  |  |             } catch (FileNotFoundException e) { | 
			
		
	
		
			
				
					|  |  |  |  |                 e.printStackTrace(); | 
			
		
	
		
			
				
					|  |  |  |  |                 return null; | 
			
		
	
	
		
			
				
					|  |  |  | @ -305,31 +380,46 @@ public class BackupUtils { | 
			
		
	
		
			
				
					|  |  |  |  |                 e.printStackTrace(); | 
			
		
	
		
			
				
					|  |  |  |  |                 return null; | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |             return ps; | 
			
		
	
		
			
				
					|  |  |  |  |         } | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |     /** | 
			
		
	
		
			
				
					|  |  |  |  |      * Generate the text file to store imported data | 
			
		
	
		
			
				
					|  |  |  |  |      * 在SD卡上生成导出文件 | 
			
		
	
		
			
				
					|  |  |  |  |      * @param context 上下文对象 | 
			
		
	
		
			
				
					|  |  |  |  |      * @param filePathResId 文件路径资源ID | 
			
		
	
		
			
				
					|  |  |  |  |      * @param fileNameFormatResId 文件名格式资源ID | 
			
		
	
		
			
				
					|  |  |  |  |      * @return 生成的File对象,失败返回null | 
			
		
	
		
			
				
					|  |  |  |  |      */ | 
			
		
	
		
			
				
					|  |  |  |  |     private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { | 
			
		
	
		
			
				
					|  |  |  |  |     private static File generateFileMountedOnSDcard( | 
			
		
	
		
			
				
					|  |  |  |  |             Context context, | 
			
		
	
		
			
				
					|  |  |  |  |             int filePathResId, | 
			
		
	
		
			
				
					|  |  |  |  |             int fileNameFormatResId) { | 
			
		
	
		
			
				
					|  |  |  |  |          | 
			
		
	
		
			
				
					|  |  |  |  |         StringBuilder sb = new StringBuilder(); | 
			
		
	
		
			
				
					|  |  |  |  |         sb.append(Environment.getExternalStorageDirectory()); | 
			
		
	
		
			
				
					|  |  |  |  |         sb.append(context.getString(filePathResId)); | 
			
		
	
		
			
				
					|  |  |  |  |          | 
			
		
	
		
			
				
					|  |  |  |  |         File filedir = new File(sb.toString()); | 
			
		
	
		
			
				
					|  |  |  |  |          | 
			
		
	
		
			
				
					|  |  |  |  |         sb.append(context.getString( | 
			
		
	
		
			
				
					|  |  |  |  |                 fileNameFormatResId, | 
			
		
	
		
			
				
					|  |  |  |  |                 DateFormat.format(context.getString(R.string.format_date_ymd), | 
			
		
	
		
			
				
					|  |  |  |  |                 DateFormat.format( | 
			
		
	
		
			
				
					|  |  |  |  |                         context.getString(R.string.format_date_ymd), | 
			
		
	
		
			
				
					|  |  |  |  |                         System.currentTimeMillis()))); | 
			
		
	
		
			
				
					|  |  |  |  |          | 
			
		
	
		
			
				
					|  |  |  |  |         File file = new File(sb.toString()); | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |         try { | 
			
		
	
		
			
				
					|  |  |  |  |             // 创建目录(如果不存在)
 | 
			
		
	
		
			
				
					|  |  |  |  |             if (!filedir.exists()) { | 
			
		
	
		
			
				
					|  |  |  |  |                 filedir.mkdir(); | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |              | 
			
		
	
		
			
				
					|  |  |  |  |             // 创建文件(如果不存在)
 | 
			
		
	
		
			
				
					|  |  |  |  |             if (!file.exists()) { | 
			
		
	
		
			
				
					|  |  |  |  |                 file.createNewFile(); | 
			
		
	
		
			
				
					|  |  |  |  |             } | 
			
		
	
		
			
				
					|  |  |  |  |              | 
			
		
	
		
			
				
					|  |  |  |  |             return file; | 
			
		
	
		
			
				
					|  |  |  |  |         } catch (SecurityException e) { | 
			
		
	
		
			
				
					|  |  |  |  |             e.printStackTrace(); | 
			
		
	
	
		
			
				
					|  |  |  | @ -339,6 +429,4 @@ public class BackupUtils { | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  |         return null; | 
			
		
	
		
			
				
					|  |  |  |  |     } | 
			
		
	
		
			
				
					|  |  |  |  | } | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  | 
 | 
			
		
	
		
			
				
					|  |  |  |  | } |