How to use scheduleAtFixedRate for executing in each second

Question

in the below code send() function is executing many times in a second,i want to execute send() once in a second,how i change the code

timer.scheduleAtFixedRa         


        

Answer 1

It happened for me when I used a TaskTimer and the phone got into sleep mode. I think it is related to TimerTask using Thread.sleep() to provide the timing. This relies on uptimeMillis() which according to documentation - 'is counted in milliseconds since the system was booted. This clock stops when the system enters deep sleep (CPU off, display dark, device waiting for external input), but is not affected by clock scaling, idle, or other power saving mechanisms. This is the basis for most interval timing such as Thread.sleep(millls)' Solution would be either to use AlarmManager or WakeLocks.

Answer 2

an easier approach would look like this:

new Thread() {
  public void run() {
     while(true) {
       send();
       try{
         Thread.sleep(1000); // pauses for 1 second
       catch(Exception e) {}
     }
  }
}.start();

Answer 3

I replaced timers with Runnables/Handlers recently, it's much easier

//declare at top of your activity
private Handler h = new Handler();

private Runnable myRunnable = new Runnable() {
   public void run() {
    //do stuff  

        //run again in one second
    h.postDelayed(myRunnable, 1000);
   }
};

//trigger the runnable somewhere in your code e.g. onClickHander or onCreate etc
h.postDelayed(myRunnable, 1000);