android之ProgressDialog 完成数据加载时，关闭ProgressDialog的问题

悬赏园豆：50 [待解决问题] 解决于 2011-05-18 17:35

public class progress extends Activity {
    public final static int TASK_LOOP_COMPLETE = 0;
    ProgressDialog pd;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        pd = ProgressDialog.show(this, "", "loading...", true, true);
        
        
        new Thread() {  
               public void run() {  
                 try {
                        sleep(5000);
                    } catch (InterruptedException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } finally{
                        messageListener.sendEmptyMessage(TASK_LOOP_COMPLETE); 
                    }
                 }
               }.start(); 
    }
    
    private Handler messageListener = new Handler(){
        public void handleMessage(Message msg) {
            switch(msg.arg1){
            case TASK_LOOP_COMPLETE:
                pd.dismiss();
                break;
                
            }
        }
    };
}