Running code while showing a progress dialog

The following code demonstrates how to show a progress dialog while starting up an Android activity. The progress dialog is shown near the end of the creation of the activity. There, a thread is created and started up.

When the thread has finished completion, it queues code to dismiss the progress dialog into the UI thread.

public class listApks extends Activity {
    ProgressDialog mprogressDialog;
   
    private void someTasks() {
      // run some private code here 
    }
   
    private class someTasksThread extends Thread {
        Handler mHandler;
       
        someTasksThread(Handler h) {
            mHandler = h;
        }
       
        public void run() {
            // run some stuff here
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    mprogressDialog.dismiss();
                   // post results here into the user interface
               }
            });
        }
    
    }
   
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mprogressDialog = ProgressDialog.show(this, "",
                "Loading. Please wait...", true);
        Thread thread = new someTasksThread(new Handler());
        thread.start();
    }
}