选择DialogBox后无法在ImageView中保存图像

Question

我想在点击相机或从图库中选择后，在ImageView中保存图片。我想在Activity中显示至少五张图片和最多八张图片。

protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) {


    try {
        String file_path = "";
        super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
        if (resultCode == RESULT_OK) {
            if (requestCode == CAMERA_REQUEST) {
                Bitmap thumbnail = (Bitmap) imageReturnedIntent.getExtras().get("data");
                ByteArrayOutputStream bytes = new ByteArrayOutputStream();
                thumbnail.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
                File destination = new File(Environment.getExternalStorageDirectory(),
                        System.currentTimeMillis() + ".jpg");
                file_path = destination.getPath();
                editor.putString("image_path", file_path);
                editor.commit();

                FileOutputStream fo;
                try {
                    destination.createNewFile();
                    fo = new FileOutputStream(destination);
                    fo.write(bytes.toByteArray());
                    fo.close();
                    Picasso.with(Sell_Main.this).load(destination).into(imgone);
                } catch (FileNotFoundException e) {
                    Toast.makeText(Sell_Main.this, e.getMessage(), Toast.LENGTH_SHORT).show();
                } catch (IOException e) {
                    Toast.makeText(Sell_Main.this, e.getMessage(), Toast.LENGTH_SHORT).show();
                }
            }
        }
    } catch (Exception e) {
        Toast.makeText(Sell_Main.this, e.getMessage(), Toast.LENGTH_SHORT).show();
    }
}


public void Image_Picker_Dialog()
{
    AlertDialog.Builder myAlertDialog = new AlertDialog.Builder(this);
    myAlertDialog.setMessage("Select Picture Mode");

    myAlertDialog.setPositiveButton("Gallery", new DialogInterface.OnClickListener()
    {
        public void onClick(DialogInterface arg0, int arg1)
        {

            Intent pickPhoto = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
            pickPhoto.putExtra(Intent.EXTRA_ALLOW_MULTIPLE,true);
            startActivityForResult(pickPhoto , 1);

        }
    });

    myAlertDialog.setNegativeButton("Camera", new DialogInterface.OnClickListener()
    {
        public void onClick(DialogInterface arg0, int arg1)
        {
            Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            takePicture.putExtra(Intent.EXTRA_ALLOW_MULTIPLE,true);
            startActivityForResult(takePicture, 0);
        }
    });
    myAlertDialog.show();

}