我想推迟选定的延迟时间的烤面包一样（15，30，60秒，无延迟），但它不会工作。这里的code：

I want to delay the toast on selected delay times like (15, 30, 60 seconds and no delay) but it won't work. Here's the code:

public void onItemSelected(AdapterView<?> parent,
            View view, int pos, long id) {
        if(FirstLoad){
            FirstLoad = false;
            return;                         
        }
          Toast.makeText(parent.getContext(), "You chose " + 
              parent.getItemAtPosition(pos).toString()+ " to delay", Toast.LENGTH_LONG).show();

          Message message = new Message();
          Bundle bun = new Bundle();
          bun.putString("delay", parent.getItemAtPosition(pos).toString());
          message.obj = bun;
          if (pos == 0) {
              handler.sendMessageDelayed(message, 0);
          }
          else if (pos == 1) {
              handler.sendMessageDelayed(message, 15000);
          }
          else if (pos == 2) {
              handler.sendMessageDelayed(message, 30000);
          }
          else if (pos == 3) {
              handler.sendMessageDelayed(message, 60000);
          }
          //handler.sendMessageDelayed(message, 15000);
        }

        public void onNothingSelected(AdapterView<?> parent) {
          return;
        }

请帮助。

推荐答案

试试这个：

    final Toast toast = Toast.makeText(parent.getContext(), "You chose "
            + parent.getItemAtPosition(pos).toString() + " to delay",
            Toast.LENGTH_LONG);

    Runnable showToastRunnable = new Runnable() {
        public void run() {
            toast.show();
        }
    };

    if (pos == 0) {
        handler.postDelayed(showToastRunnable, 0);
    } else if (pos == 1) {
        handler.postDelayed(showToastRunnable, 15000);
    } else if (pos == 2) {
        handler.postDelayed(showToastRunnable, 30000);
    } else if (pos == 3) {
        handler.postDelayed(showToastRunnable, 60000);
    }

编辑：

顺便说一句，我想转让这对发送按钮，我想延缓根据用户选择的延迟消息发送致祝酒辞。我应该如何实现呢？

By the way, I want to transfer this to the send button, i want to delay the toast of "Message sent" according to the delay the user chose. How should I implement it?

你是如何获取的延迟？它说的是用户输入在的EditText ？ 在这种情况下，你可以只得到这样的延迟：

How are you fetching the delay? Is it something the user enters in an EditText? In that case you could just get the delay like this :

int delay = Integer.parseInt(delayEditText.getText().toString());

，然后使用该延迟量后可运行的处理程序是这样的：

and then use that delay amount to post the runnable to the handler like this :

handler.postDelayed(showToastRunnable, delay);

您可以删除在这种情况下，你的整个的if-else块。

You can remove your entire if-else block in this case.