gistfile1.java

	private class SaveSnapshotTask extends AsyncTask<Void, Void, File> {
		@Override
		protected void onPreExecute() {
			View progress = findViewById(R.id.progress);
			progress.setVisibility(View.VISIBLE);
		}
		
		@Override
		protected File doInBackground(Void... ignore) {
	        File pictureFile = getOutputMediaFile();
	        
	        if (pictureFile == null){
	            Log.d(TAG, "Error creating media file, check storage permissions");
	            return null;
	        }
	        try {
	            FileOutputStream fos = new FileOutputStream(pictureFile);
	            mCurrentBmp.compress(Bitmap.CompressFormat.JPEG, 85, fos);
	            fos.close();
	            
//	            String uri = MediaStore.Images.Media.insertImage(getContentResolver(),
//	            		pictureFile.getAbsolutePath(), pictureFile.getName(), pictureFile.getName());
	        } catch (FileNotFoundException e) {
	            Log.d(TAG, "File not found: " + e.getMessage());
	            pictureFile = null;
	        } catch (IOException e) {
	            Log.d(TAG, "Error accessing file: " + e.getMessage());
	            pictureFile = null;
	        }
			
			return pictureFile;
		}
		
		@Override
		protected void onPostExecute(File file) {
			View progress = findViewById(R.id.progress);
			progress.setVisibility(View.GONE);
		}
	}