Question

The following code updates a set of progress bars when a button is clicked. (the values are random generated test values).

For testing purposes I would ideally like the progress bars to be continuously updating. i.e. the button is pushed and the progress bars update, wait a second or two and update again and so on.

I added a while loop to the onClick method but it causes the application to crash.

Does anyone know how can I implement this? Maybe I am missing something very simple?

Thanks in advance for any help!

   Button dtTest = (Button) findViewById(R.id.button1);
   dtTest.setOnClickListener(new View.OnClickListener() {
       public void onClick(View view) {

                    // Generate Data Table
                    int pb1 = (int)(Math.random()*100);
                    int pb2 = (int)(Math.random()*100);
                    int pb3 = (int)(Math.random()*100);
                    int pb4 = (int)(Math.random()*100);

                    ProgressBar pbFeedPump = (ProgressBar) findViewById(R.id.progressBar1);
                    ProgressBar pbMediaFilter = (ProgressBar) findViewById(R.id.progressBar2);
                    ProgressBar pbCartridges = (ProgressBar) findViewById(R.id.progressBar3);
                    ProgressBar pbMotor = (ProgressBar) findViewById(R.id.progressBar4);

                    // Update Progress Bars
                    pbFeedPump.setProgress(pb1);
                    pbMediaFilter.setProgress(pb2);
                    pbCartridges.setProgress(pb3);
                    pbMotor.setProgress(pb4);

       }
   });

Answer 1

Easiest way is to use a Timer, especially one of the scheduleAtFixedRate overloads.