FloatingActionButton does not come down when dismissing Snackbar

Question

I am trying to use a Snackbar. I have a FloatingActionButton wrapped in a CoordinatorLayout. When the Snackbar shows, the

Answer 1

To solve this issue I defined a RelativeLayout Behavior like this. This can be done for any view, just replace all RelativeLayout with desired UI element.

public class RelativeLayoutBehavior extends CoordinatorLayout.Behavior {

    public RelativeLayoutBehavior(Context context, AttributeSet attrs) {

    }

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

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

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

Then you need to add the Behavior into the RelativeLayout "android:layout_behavior" property like this. Make sure the RelativeLayout you want to slide up is inside of a CoordinateLayout also.