ConstraintLayoutBehavior.java

public class ConstraintLayoutBehavior extends CoordinatorLayout.Behavior<ConstraintLayout> {
    public ConstraintLayoutBehavior(Context context, AttributeSet attributeSet) {
        super(context, attributeSet);
    }

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

    @Override
    public boolean onDependentViewChanged(CoordinatorLayout parent, ConstraintLayout child, View dependency) {
        float translationY = Math.min(0, dependency.getTranslationY() - dependency.getHeight());
        child.setTranslationY(translationY);
        return true;
    }

    @Override
    public void onDependentViewRemoved(CoordinatorLayout parent, ConstraintLayout child, View dependency) {
        child.setTranslationY(0);
    }
}