安卓：無法解僱ProgressDialog

Question

這是怎麼了創建PorgressDialog：

... progressBarDialog = new ProgressDialog(context); 
        progressBarDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
progressBarDialog.show(this, "Please Wait", "Updating your GPS coordinates",false,true); 


//Trigger GPS service to update coordinates 
fg.myOnresume(Name); 
fg.dontSendSMS(); 
//Sets the timer at 30 secs 
timer= new Timer(); 
timer.schedule(new startMapActivity()); 
} 
class startMapActivity extends TimerTask 
    { 
     @Override 
     public void run() 
     { 
      //handler.sendEmptyMessage(0); 
      Log.d("", "StartMapActivty--->>>run()"); 
      // Dismissing Dialog Box 
      if(progressBarDialog.isShowing()) 
      { 
       progressBarDialog.dismiss(); 
      } 

     } 
    } 

所以基本上之後定時器結束後30秒我想dimiss對話框，但它不工作:(請幫助。

Answer 1

您不能修改從非UI線程UI使用handlers做

Answer 2

檢查這個線程：。 ProgressDialog dismissal in android

Answer 3

稍微改變你的代碼。像：

Runnable r = new Runnable() 
    { 

     public void run() 
     { 
      // TODO Auto-generated method stub 
      //dismiss your dialoge here.... 
     } 
    }; 

，你可以調用這個樣：

Handler h = new Handler(); 
    h.postDelayed(r, delayMillis);