/**
  * 拷贝数据库到sd卡
  * 
  * @deprecated <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
  */
 public static void copyDataBaseToSD(){
   if (!Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
       return ;
     }
   File dbFile = new File(MvpApplication.getApplication().getDatabasePath("dandy")+".db");
   File file = new File(Environment.getExternalStorageDirectory(), "seeker.db");
   
   FileChannel inChannel = null,outChannel = null;
   
   try {
   file.createNewFile();
   inChannel = new FileInputStream(dbFile).getChannel();
   outChannel = new FileOutputStream(file).getChannel();
   inChannel.transferTo(0, inChannel.size(), outChannel);
  } catch (Exception e) {
   LogUtils.e(TAG, "copy dataBase to SD error.");
   e.printStackTrace();
  }finally{
   try {
    if (inChannel != null) {
     inChannel.close();
     inChannel = null;
    }
    if(outChannel != null){
     outChannel.close();
     outChannel = null;
    }
   } catch (IOException e) {
    LogUtils.e(TAG, "file close error.");
    e.printStackTrace();
   }
  }
 }