Question

I have really been struggling figuring out how to get a ProgressDialog on the UI Thread for this code given that uploadPhoto and would appreciate any guidance:

@Override
    /** Handle Upload a Photo **/
    protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) { 
        super.onActivityResult(requestCode, resultCode, imageReturnedIntent); 

        // Get image
        if (resultCode == RESULT_OK) {

            // ProgressDialog dialog = ProgressDialog.show(this, "", "Uploading Photo...", true, false);

            switch(requestCode) { 

                // Take Photo
                case 4001:      
                    // Upload
                    uploadPhoto(Uri.fromFile(mImageFile));
                    break;

                // Select Photo
                case 5001:

                    // Get image 
                    Uri selectedImage = imageReturnedIntent.getData();

                    // Upload
                    uploadPhoto(selectedImage);
                    break;
            }

            // Dismiss
            // dialog.dismiss();            
        }
    }

Answer 1

use AsyncTask may be. put the upload photo function in background of the async task.

start a progress dialog in pre execute.

dismiss/cancel progress dialog in post execute.

post execute and pre execute run on UI thread.

private class uploadPhoto extends AsyncTask<Void, Void, Void>{

            private ProgressDialog dialog;
        protected void onPostExecute(Void dResult) {

                dialog.cancel();

        }

        protected void onPreExecute() {


            dialog = new ProgressDialog(Myactivity.this);
            dialog.setCancelable(true);
            dialog.setMessage("uploading...");
            dialog.show();

                }

        protected Void doInBackground(Void... params) {
            // call upload photo here.
        }

    }

to call the asyncTask use

new uploadPhoto().execute();