Question

我想问一下，如果有更好的方法可以多次调用一个方法，在每次通话之间延迟5秒。

但我真的想要调用Toas（）方法大约7次，并且使用下面的代码，它看起来不正确。

谢谢你们

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ...

CallMultipleToast();


........



    private void CallMultipleToast(){

             Runnable call_1 = new Runnable() {
                 @Override
                 public void run() {
                     Toast("Message one");


                         Runnable call_2 = new Runnable() {
                             @Override
                             public void run() {
                                 Toast("Message two");


                                     Runnable call_3 = new Runnable() {
                                         @Override
                                         public void run() {
                                             Toast("Message three");
                                             //CAN I ADD MORE
                                         }
                                     };//end call_3
                                     new Handler().postDelayed(call_3, 5000);


                             }
                         };//end call_2
                         new Handler().postDelayed(call_2, 5000);

                 }
             };//end call_1
             new Handler().postDelayed(call_1, 5000);


    }





    private void Toast(String message){
        Toast.makeText(this, message, Toast.LENGTH_LONG).show();
    }

Answer 1

也许你可以这样做：

private void CallMultipleToast(){
  Thread t = new Thread(){
        @Override
        public void run(){
            try {
                for(i=0;i<7;i++){
                   Toast("Message "+(i+1));
                   sleep(5000);
                }

            } catch (InterruptedException ex) {
                Log.i("error","thread");
            }
        }
    };
   t.start();
 }

Answer 2

试试这个：

final int DELAY= 5000;
int count = 0;
String[] msgs = {"one", "two", "three", "four", "five"};
Handler handler = new Handler();
Runnable runnable = new Runnable() {
    @Override
    public void run() {
        if (count < 5) {
            Toast(msgs[count]);
            handler.post(runnable);
        }
        count++;
    }
};

handler.postDelayed(runnable, DELAY);

Android如何多次调用方法，并在它们之间有延迟

2 个答案: