Repeat a task with a time delay?

Question

I have a variable in my code say it is "status". I want to display some text in the application depending on this variable value. This has to be done with a specific time delay. It's like, Check status variable value Display some text Wait for 10 seconds Check status variable value Display some text Wait for 15 seconds and so on. The time delay may vary and it is set once the text is displayed. I have tried Thread.sleep(time delay) and it failed. Any better way to get this done? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

You should use Handler's postDelayed function for this purpose. It will run your code with specified delay on the main UI thread, so you will be able to update UI controls. private int mInterval = 5000; // 5 seconds by default, can be changed later private Handler mHandler; @Override protected void onCreate(Bundle bundle) { // your code here mHandler = new Handler(); startRepeatingTask(); } @Override public void onDestroy() { super.onDestroy(); stopRepeatingTask(); } Runnable mStatusChecker = new Runnable() { @Override public void run() { try { updateStatus(); //this function can change value of mInterval. } finally { // 100% guarantee that this always happens, even if // your update method throws an exception mHandler.postDelayed(mStatusChecker, mInterval); } } }; void startRepeatingTask() { mStatusChecker.run(); } void stopRepeatingTask() { mHandler.removeCallbacks(mStatusChecker); }