public void setListView(ListView listView) {
        this.listView = listView;
        this.listView.setOnScrollListener(this);
    }
Created by hamedpc on 4/25/2015.
This widget uses NineOldAndroid to animate the view so you're gonna need to include it in your project
MaterialDesignLibrary/MaterialDesign/src/main/java/com/gc/materialdesign/views/AutoHideButtonFloat.java