problem with a text view

Question

I\'m reading some data like speed and curent location using a single ton class....I\'m reading them using an AsyncTask thread in a loop....:)....each time I\'m reading a new spe

Answer 1

You should always post UI updates on the UIThread.

runOnUiThread(new Runnable() {
        public void run() {
             speed_1.setText(Integer.toString(speed));
             location.setText(loc1);

        }
}

Answer 2

THelper is right, you cannot do any UI operations from a different thread than the main / UI one. You can either use his solution (which works great) or, since you are already using an AsyncTask you can use the methods provided by it:

• publishProgress
• onProgressUpdate

Basically, from inside your doInBackground method you call publishProgress() and the AsyncTask class handles all thread-related headaches and calls your onProgressUpdate as soon as possible, on the UI thread, ensuring that you can modify the UI (for example call setText) without any problems.