Avoid button multiple rapid clicks

Question

I have a problem with my app that if the user clicks the button multiple times quickly, then multiple events are generated before even my dialog holding the button disappear

Answer 1

Here's my version of the accepted answer. It is very similar, but doesn't try to store Views in a Map which I don't think is such a good idea. It also adds a wrap method that could be useful in many situations.

/**
 * Implementation of {@link OnClickListener} that ignores subsequent clicks that happen too quickly after the first one.<br/>
 * To use this class, implement {@link #onSingleClick(View)} instead of {@link OnClickListener#onClick(View)}.
 */
public abstract class OnSingleClickListener implements OnClickListener {
    private static final String TAG = OnSingleClickListener.class.getSimpleName();

    private static final long MIN_DELAY_MS = 500;

    private long mLastClickTime;

    @Override
    public final void onClick(View v) {
        long lastClickTime = mLastClickTime;
        long now = System.currentTimeMillis();
        mLastClickTime = now;
        if (now - lastClickTime < MIN_DELAY_MS) {
            // Too fast: ignore
            if (Config.LOGD) Log.d(TAG, "onClick Clicked too quickly: ignored");
        } else {
            // Register the click
            onSingleClick(v);
        }
    }

    /**
     * Called when a view has been clicked.
     * 
     * @param v The view that was clicked.
     */
    public abstract void onSingleClick(View v);

    /**
     * Wraps an {@link OnClickListener} into an {@link OnSingleClickListener}.<br/>
     * The argument's {@link OnClickListener#onClick(View)} method will be called when a single click is registered.
     * 
     * @param onClickListener The listener to wrap.
     * @return the wrapped listener.
     */
    public static OnClickListener wrap(final OnClickListener onClickListener) {
        return new OnSingleClickListener() {
            @Override
            public void onSingleClick(View v) {
                onClickListener.onClick(v);
            }
        };
    }
}

Answer 2

More significant way to handle this scenario is using Throttling operator (Throttle First) with RxJava2. Steps to achieve this in Kotlin :

1). Dependencies :- Add rxjava2 dependency in build.gradle app level file.

implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'
implementation 'io.reactivex.rxjava2:rxjava:2.2.10'

2). Construct an abstract class that implements View.OnClickListener & contains throttle first operator to handle the view’s OnClick() method. Code snippet is as:

import android.util.Log
import android.view.View
import io.reactivex.android.schedulers.AndroidSchedulers
import io.reactivex.subjects.PublishSubject
import java.util.concurrent.TimeUnit

abstract class SingleClickListener : View.OnClickListener {
   private val publishSubject: PublishSubject<View> = PublishSubject.create()
   private val THRESHOLD_MILLIS: Long = 600L

   abstract fun onClicked(v: View)

   override fun onClick(p0: View?) {
       if (p0 != null) {
           Log.d("Tag", "Clicked occurred")
           publishSubject.onNext(p0)
       }
   }

   init {
       publishSubject.throttleFirst(THRESHOLD_MILLIS, TimeUnit.MILLISECONDS)
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe { v -> onClicked(v) }
   }
}

3). Implement this SingleClickListener class on the click of view in activity. This can be achieved as :

override fun onCreate(savedInstanceState: Bundle?)  {
   super.onCreate(savedInstanceState)
   setContentView(R.layout.activity_main)

   val singleClickListener = object : SingleClickListener(){
      override fun onClicked(v: View) {
       // operation on click of xm_view_id
      }
  }
xm_viewl_id.setOnClickListener(singleClickListener)
}

Implementing these above steps into the app can simply avoid the multiple clicks on a view till 600mS. Happy coding!