Modal HUD on asynctask

Question

I am working on something in Android. There will be a menu, when accessed, requests a fairly large list of users from a server (500+) and takes about 5 seconds. During this time, the application freezes. How do I go about showing a progress hud (like MBProgressHud) where the user is aware something is happening and can't touch out of it until it is complete.

MBProgressHud:

HUD Example

score 6 · Accepted Answer · answered Aug 16 '12 at 14:36

Use AsyncTask :

public class MyAsyncTask extends AsyncTask<Void, Void, Result>{

                        private Activity activity;
                        private ProgressDialog progressDialog;

            public MyAsyncTask(Activity activity) {
                            super();
                this.activity = activity;
            }

            @Override
            protected void onPreExecute() {
            super.onPreExecute();
                progressDialog = ProgressDialog.show(activity, "Loading", "Loading", true);
            }

            @Override
            protected Result doInBackground(Void... v) {
            //do your stuff here
            return null;

            }

            @Override
            protected void onPostExecute(Result result) {
                progressDialog.dismiss();
                Toast.makeText(activity.getApplicationContext(), "Finished.", 
                        Toast.LENGTH_LONG).show();
            }


}

Call it from the activity:

MyAsyncTask task = new AsyncTask(myActivity.this);
task.execute();

score 0 · Answer 2 · edited May 23 '17 at 12:08

0

You need to use AsyncTask and ProgressDialog to achieve this functionality. It will off-load the heavy lifting (web calls) on a separate thread, setting your UI thread to be free from ANR (Application Not Responding).

For more info, read this answer.

edited May 23 '17 at 12:08

Community

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answered Aug 16 '12 at 14:34

waqaslam

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Modal HUD on asynctask

2 Answers2