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POChange text color in button every interval of time
 

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    <pre><code>Timer t = new Timer(); t.scheduleAtFixedRate(new TimerTask() { public void run() { // TODO Auto-generated method stub Log.i("first iteration","first iteration"); btn1.setTextColor(Color.rgb((int)(Math.random()*255), (int)(Math.random()*255), (int)(Math.random()*255))); Log.i("iterating","iteratinggggggggg"); } }, 0, 1000); </code></pre> <p>in Logcat:</p> <pre><code>01-07 02:39:09.789: I/first iteration(16568): first iteration 01-07 02:39:09.789: I/iterating(16568): iteratinggggggggg 01-07 02:39:10.781: I/first iteration(16568): first iteration </code></pre> <p>which means that <code>btn1.setTextColor(...)</code> is executing <strong>only once</strong>! I would like the <strong>Button Text</strong> to be changed every <strong>1 second</strong>.</p> <p>Any expert can help?</p> <p>Thank to Ole I could find out a solution for my problem that I would like to share with you:</p> <p><strong>SOLUTION:</strong></p> <pre><code>// UPDATING BTN TEXT DYNAMICALLY Runnable myRunnableUpdater = new Runnable() { public void run() { colorGenerator(); hd.postDelayed(myRunnableUpdater, 1000); } }; void startRepeatingTask() { myRunnableUpdater.run(); } void stopRepeatingTask() { hd.removeCallbacks(myRunnableUpdater); } private void colorGenerator() { btn1.setTextColor(Color.rgb((int)(Math.random()*255), (int)(Math.random()*255), (int)(Math.random()*255))); } //END OF UPDATING BTN TEXT DYNAMICALLY!! </code></pre> <p>1)Do not forget to declare <code>Handler hd</code><br> 2)Also, <code>hd = new Handler()</code> in <code>onCreate()</code><br> 3) Use <code>startRepeatingTask()</code> wherever you desire your repetitive code to be repeated.<br> 4) Use <code>stopRepeatingTask()</code> wherever you desire to stop repeating.<br></p> <p>Cheers! ;)</p>
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    1. COAre you sure? You have 2 "first iteration" Log outputs 1 sec apart and it will always output "first iteration" when the TimerTask repeats as it's a String.
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    2. COyes i'm sure, i tested it many times! maybe because rgb is a static method and cannot be changed every instance?
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    3. COAnd you are not getting any errors in LogCat? You are updating the UI from outside the main thread. I would expect your application to force close.
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      1. USOle
 

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