Show Progress while launching an Intent?

Question

Is it possible to show a Dialog or ProgressBar during the pre and post execute phases of an Intent?

I am launching an Intent from my Activity to show the Image Gallery. Subsequently the user will be able crop the selected Image.

The problem: Launching the gallery takes some time, and the resulting crop also is very slow. At the very least I would like to show a busy indicator during the beginning and ending phases of the Intent.

Here is how I am launching my Intent:

Intent intent = new Intent(Intent.ACTION_GET_CONTENT); 
            intent.setType("image/*");
            intent.putExtra("crop", "true");
            intent.putExtra("outputX", 320); // crop down to 320 x 320 pixels
            intent.putExtra("outputY", 320);
            intent.putExtra("aspectX", 1); // 1:1 aspect ratio
            intent.putExtra("aspectY", 1);
            intent.putExtra("scale", true); // 
            intent.putExtra("noFaceDetection", true); 
            intent.putExtra("return-data", true); // return data as Bitmap (only do for small images)
            startActivityForResult(intent, REQUEST_CHOICE_IMAGE);