Android:无法关闭 ProgressDialog

Question

这就是我创建 PorgressDialog 的方式:

... 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();
            }

        }
    }

所以基本上在计时器 30 秒后完成后，我想关闭对话框，但它不起作用:(请帮忙。

Answer 1

您无法从非 UI 线程修改 UI。使用handlers去做这件事。