Exemple #1
0
 public void mOnClick(View v) {
   switch (v.getId()) {
     case R.id.test:
       String rootdir = Environment.getRootDirectory().getAbsolutePath();
       String datadir = Environment.getDataDirectory().getAbsolutePath();
       String cachedir = Environment.getDownloadCacheDirectory().getAbsolutePath();
       mEdit.setText(
           String.format(
               "ext = %s\nroot=%s\ndata=%s\ncache=%s", mSdPath, rootdir, datadir, cachedir));
       break;
     case R.id.save:
       File dir = new File(mSdPath + "/dir");
       dir.mkdir();
       File file = new File(mSdPath + "/dir/file.txt");
       try {
         FileOutputStream fos = new FileOutputStream(file);
         String str = "This file exists in SDcard";
         fos.write(str.getBytes());
         fos.close();
         mEdit.setText("write success");
       } catch (FileNotFoundException e) {
         mEdit.setText("File Not Found." + e.getMessage());
       } catch (SecurityException e) {
         mEdit.setText("Security Exception");
       } catch (Exception e) {
         mEdit.setText(e.getMessage());
       }
       break;
     case R.id.load:
       try {
         FileInputStream fis = new FileInputStream(mSdPath + "/dir/file.txt");
         byte[] data = new byte[fis.available()];
         while (fis.read(data) != -1) {;
         }
         fis.close();
         mEdit.setText(new String(data));
       } catch (FileNotFoundException e) {
         mEdit.setText("File Not Found");
       } catch (Exception e) {;
       }
       break;
   }
 }
    @Override
    protected String doInBackground(String... arg0) {
      // TODO Auto-generated method stub
      String data = null;
      FileInputStream fis = null;

      for (int i = 0; i < 25; i++) {
        // referencing progressupdate method
        publishProgress(4);
        try {
          Thread.sleep(100);
        } catch (InterruptedException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
      }

      dial.dismiss();
      try {
        fis = openFileInput(FILENAME);
        byte[] arr = new byte[fis.available()]; // getting number of bytes in fis
        while (fis.read(arr) != -1) ; // reading the bytes in fis
        {
          data = new String(arr);
        }
      } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } finally {
        try {
          fis.close();
        } catch (IOException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
      }
      return data;
    }