Ripples using Probe and MostafaGazar's Widgets

RippleInterceptor.java

package com.cafesalam.experiments.app.ui;

import org.lucasr.probe.Interceptor;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;

import java.util.WeakHashMap;

/* this class is a Probe Interceptor that gives views a ripple effect
 * using https://github.com/MostafaGazar/Widgets.
 */
public class RippleInterceptor extends Interceptor {
  private Context mContext;
  private WeakHashMap<View, RippleView> mMapping;

  public RippleInterceptor(Context context) {
    mContext = context;
    mMapping = new WeakHashMap<>();
  }

  @Override
  public void onLayout(View view, boolean changed,
      int left, int top, int right, int bottom) {
    if (!(view instanceof ViewGroup)) {
      RippleView rippleView = mMapping.get(view);
      if (rippleView == null) {
        rippleView = new RippleView(mContext, view);
        mMapping.put(view, rippleView);
      }
    }
    super.onLayout(view, changed, left, top, right, bottom);
  }
}