title: Android: execute code in regular intervals
body: <p>I need to perform some code in regular intervals (connect to a server and pull data from MySQL database every minute). For this purpose I have a Sync class:</p>
  
  <pre><code>public class Sync {
  
      static private Handler handler = new Handler();
      Runnable task;
  
      public Sync(Runnable task, long time) {
          this.task = task;
          handler.removeCallbacks(task);
          handler.postDelayed(task, time);
      }
  }
  </code></pre>
  
  <p>and in my Activity I have:</p>
  
  <pre><code>public void onCreate(Bundle savedInstanceState) {
      ...
      Sync sync = new Sync(call,60*1000);
      ...
  }
  
  final private Runnable call = new Runnable() {
      public void run() {
      //This is where my sync code will be, but for testing purposes I only have a Log statement
      Log.v("test","this will run every minute");
      }
  };
  </code></pre>
  
  <p>I have tried this with a shorter time period for testing, but It only runs once. When it Logs the message for the first time, its also the last. Does anyone see what Im doing erong here? Thanks!</p>