The Best and simple solution i found is 
1. to create a boolean and set as false (default) like
private boolean itemClicked = false;

/* for a safer side you can also declare boolean false in onCreate() also. */
and at onclick() method check 
2. if(!itemClicked)
{
itemClicked = true;
// rest of your coding functionality goes here of onClick method.
}
3. last step is to set boolean false in onResume()
@override
onResume()
{
super.onResume(0);
itemClicked = false;
}

Setting the button as clickable false upon clicking and true once it is desired to make the button clickable again is the right approach. For instance, consider the following scenario: you are making a service call upon click of a button and once the service is done you want to display a dialog. For this, once the button is clicked you can set setClickable(false) and once the service responds you will do setClicklable(true) through a reference you pass to your custom dialog. When dialog invokes isShowing() you can trigger the listener and setClicklable(true).

你可以用Kotlin扩展函数和RxBinding来实现它

   fun View.clickWithDebounce(debounceTime: Long = 600L, action: () -> Unit): Disposable =
        RxView.clicks(this)
                .debounce(debounceTime, TimeUnit.MILLISECONDS)
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe { action() }

or

fun View.clickWithDebounce(debounceTime: Long = 600L, action: () -> Unit) {
    this.setOnClickListener(object : View.OnClickListener {
        private var lastClickTime: Long = 0

        override fun onClick(v: View) {
            if (SystemClock.elapsedRealtime() - lastClickTime < debounceTime) return
            else action()

            lastClickTime = SystemClock.elapsedRealtime()
        }
    })
}

然后就是:

View.clickWithDebounce{ Your code }

更可取的解决方案是，

onclick(){
  btn.setEnabled(false);
  btn.setClickable(false);
  //yourwork
  myWork();
}

myWork(){
 //your tasks.
 btn.setEnabled(true);
 btn.setClickable(true);
}

由于一个环节很容易被忽略，我不得不一遍又一遍地重复这个环节

我知道这是一个老问题，但我分享了我找到的解决这个常见问题的最佳方案

        btnSomeButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            // Prevent Two Click
            Utils.preventTwoClick(view);
            // Do magic
        }
    });

在另一个文件中，比如Utils.java

    /**
 * Método para prevenir doble click en un elemento
 * @param view
 */
public static void preventTwoClick(final View view){
    view.setEnabled(false);
    view.postDelayed(
        ()-> view.setEnabled(true),
        500
    );
}

对我来说，只有记住时间戳并检查它(距离上次点击超过1秒)才有帮助。