title: why Handler , Timer , only run once?
body: <p>I have this code , and I want to run Log.d every 1000 milis , but It only run once .</p>
  
  <pre><code>seekView.postDelayed(new Runnable() {
  
                  public void run() {
                      Log.d("WWWW", "www");
  
                  }
              }, 1000);
  </code></pre>
  
  <p>creating handler , timer , ... only run once like this , where is my problem ?</p>