的解决方案是从备份其目录到SD-Card目录便携式Sqlite文件。您可以按照下面的步骤做： -
1)这个permission添加到您的Manifest.XML文件：
2)调用下面的方法在Java类：
public boolean packupDatabaseFile(){
try {
File sdCardDir = Environment.getExternalStorageDirectory();
File dataDir = Environment.getDataDirectory();
if (sdCard.canWrite()) {
String dbPath = "//data//{your package name}//databases//{your database name}";
String backupDBPath = "{database name}";
File dbFile = new File(dataDir , currentDBPath);
File backupDbFile = new File(sdCardDir , backupDBPath);
if (currentDB.exists()) {
FileChannel src = new FileInputStream(dbFile).getChannel();
FileChannel dst = new FileOutputStream(backupDbFile).getChannel();
dst.transferFrom(src, 0, src.size());
src.close();
dst.close();
}
}
return true;//Success
} catch (Exception e) {
return false;//Failed to backup
}
}