How to repeat a task after a fixed amount of time in android?

Question

I want to repeatedly call a method after every 5-seconds and whenever I wish to to stop the repeated call of the method I may stop or restart the repeated call of the method.

Here is some sample code that whats really I want to implement. Please help me in this respect I would be very thankful to you.

private int m_interval = 5000; // 5 seconds by default, can be changed later private Handler m_handler;  @Override protected void onCreate(Bundle bundle) {   ...   m_handler = new Handler(); }  Runnable m_statusChecker = new Runnable() {      @Override       public void run() {           updateStatus(); //this function can change value of m_interval.           m_handler.postDelayed(m_statusChecker, m_interval);      } };  public void startRepeatingTask() {     m_statusChecker.run();  }  public void stopRepeatingTask() {     m_handler.removeCallbacks(m_statusChecker); }   

Answer 1

Set repeated task using this:

//Declare the timer Timer t = new Timer(); //Set the schedule function and rate t.scheduleAtFixedRate(new TimerTask() {      @Override     public void run() {         //Called each time when 1000 milliseconds (1 second) (the period parameter)     }  }, //Set how long before to start calling the TimerTask (in milliseconds) 0, //Set the amount of time between each execution (in milliseconds) 1000); 

and if you wanted to cancel the task simply call t.cancel() here t is your Timer object

and you can also check comment placed below your answer they have given brief information about that.

Answer 2

Use a Handler in the onCreate() method. Its postDelayed() method causes the Runnable to be added to the message queue and to be run after the specified amount of time elapses (that is 0 in given example). Then this will queue itself after fixed rate of time (1000 milliseconds in this example).

Refer this code :

public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.main);      android.os.Handler customHandler = new android.os.Handler();     customHandler.postDelayed(updateTimerThread, 0); }  private Runnable updateTimerThread = new Runnable() {     public void run()     {         //write here whaterver you want to repeat         customHandler.postDelayed(this, 1000);     } };