Generic Snack Push Behavior (Refactored from FAB)

SnackPushBehavior.java

package br.com.app4y.behavior;

import android.content.Context;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.Snackbar;
import android.support.v4.view.ViewCompat;
import android.support.v4.view.animation.FastOutSlowInInterpolator;
import android.util.AttributeSet;
import android.view.View;
import android.view.animation.Interpolator;

import java.util.List;

public class SnackPushBehavior extends CoordinatorLayout.Behavior<View> {

    static final Interpolator FAST_OUT_SLOW_IN_INTERPOLATOR = new FastOutSlowInInterpolator();

    private float mTranslationY;

    public SnackPushBehavior(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public boolean onDependentViewChanged(CoordinatorLayout parent, View child, View dependency) {
        if(dependency instanceof Snackbar.SnackbarLayout) {
            updateViewTranslationForSnackbar(parent, child, dependency);
        }

        return false;
    }

    private void updateViewTranslationForSnackbar(CoordinatorLayout parent, View view, View snackbar) {
        float translationY = this.getFabTranslationYForSnackbar(parent, view);

        if(translationY != this.mTranslationY) {
            ViewCompat.animate(view).cancel();

            if(Math.abs(translationY - this.mTranslationY) == (float) snackbar.getHeight()) {
                ViewCompat.animate(view).translationY(translationY).setInterpolator(FAST_OUT_SLOW_IN_INTERPOLATOR).setListener(null);
            } else {
                ViewCompat.setTranslationY(view, translationY);
            }

            this.mTranslationY = translationY;
        }

    }

    private float getFabTranslationYForSnackbar(CoordinatorLayout parent, View view) {
        float minOffset = 0.0F;
        List dependencies = parent.getDependencies(view);
        int i = 0;

        for(int z = dependencies.size(); i < z; ++i) {
            View dependency = (View)dependencies.get(i);

            if(dependency instanceof Snackbar.SnackbarLayout && parent.doViewsOverlap(view, dependency)) {
                minOffset = Math.min(minOffset, ViewCompat.getTranslationY(dependency) - (float) dependency.getHeight());
            }
        }

        return minOffset;
    }

    @Override
    public boolean layoutDependsOn(CoordinatorLayout parent, View child, View dependency) {
        return dependency instanceof Snackbar.SnackbarLayout;
    }
}