how to change button text dynamically for every 3 sec in android? [closed]

Answer 1

Using AsyncTask you can do something like this to update a Button named button1

private class UpdateButton extends AsyncTask {

    @Override
    protected Void doInBackground(Void... params) {
        int i = 0;
        while ( true ) {
            publishProgress("" + i++);
            try {
                Thread.sleep(3000);
            } catch (InterruptedException e) {
                return (Void)null;
            }
        }
    }

    @Override
    protected void onProgressUpdate(String... values) {
        super.onProgressUpdate(values);

        button1.setText(values[0]);
    }       
}

to start button1 update

(new UpdateButton()).execute((Void)null);