可以一起使用intellij idea和eclipse(Is it possible to use intellij idea and eclipse together)

 通过在Activity中创建匿名Runnable类，您将创建对外部类的隐式引用，从而泄漏活动的上下文。 您的延迟Toast消息将在主线程消息队列中继续，从而防止对您的活动上下文进行垃圾收集。 
 
 使用带有对活动上下文的弱引用的静态处理程序（静态内部类不包含对其外部类的隐式引用）。 
 
private final ToastHandler mHandler = new ToastHandler(this);

private static class ToastHandler extends Handler {
    private final WeakReference<MainActivity> mActivity;

    public ToastHandler(MainActivity activity) {
        mActivity = new WeakReference<>(activity);
    }

    @Override
    public void handleMessage(Message msg) {
        MainActivity activity = mActivity.get();
        Bundle data = msg.getData();
        if (activity != null) {
            Toast.makeText(activity, data.getString("TEST_KEY"), Toast.LENGTH_LONG).show();
        }
    }
}


  private static final Runnable runnable = new Runnable() {
      @Override
      public void run() { 
                    Message message = new Message();
                    Bundle bundle = new Bundle();
                    bundle.putString("TEST_KEY", "TEST");
                    message.setData(bundle);
                    mHandler.handleMessage(message);
      }
  };
 
 在你的onClick ... 
 
 mHandler.postDelayed(runnable, 1000);
 
 编辑：哎呀，你的runnable需要是静态的 

By creating an anonymous Runnable class within an Activity you are creating an implicit reference to your outer class, thereby leaking the context of the activity. Your delayed toast message will continue in the main thread message queue preventing a garbage collect of your activity context.
 
Use a static handler with a weak reference to your activity context (Static inner classes do not hold an implicit reference to their outer class).
 
private final ToastHandler mHandler = new ToastHandler(this);

private static class ToastHandler extends Handler {
    private final WeakReference<MainActivity> mActivity;

    public ToastHandler(MainActivity activity) {
        mActivity = new WeakReference<>(activity);
    }

    @Override
    public void handleMessage(Message msg) {
        MainActivity activity = mActivity.get();
        Bundle data = msg.getData();
        if (activity != null) {
            Toast.makeText(activity, data.getString("TEST_KEY"), Toast.LENGTH_LONG).show();
        }
    }
}


  private static final Runnable runnable = new Runnable() {
      @Override
      public void run() { 
                    Message message = new Message();
                    Bundle bundle = new Bundle();
                    bundle.putString("TEST_KEY", "TEST");
                    message.setData(bundle);
                    mHandler.handleMessage(message);
      }
  };
 
In your onClick...
 
 mHandler.postDelayed(runnable, 1000);
 
Edit: Oops, your runnable needs to be static ofc