ExampleBehavior.java

package com.example.widget;

import android.content.Context;
import android.support.design.widget.AppBarLayout;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.FloatingActionButton;
import android.util.AttributeSet;
import android.view.View;


public class ExampleBehavior extends CoordinatorLayout.Behavior<FloatingActionButton>
{
	public ExampleBehavior(Context context, AttributeSet attrs)
	{
		super(context, attrs);
	}


	@Override
	public boolean layoutDependsOn(CoordinatorLayout parent, FloatingActionButton child, View dependency)
	{
		return dependency instanceof AppBarLayout;
	}


	@Override
	public boolean onDependentViewChanged(CoordinatorLayout parent, FloatingActionButton child, View dependency)
	{
		// TODO
		return false;
	}
}