Layout XML files are saved in the app/res/layout folder.Java files are saved in the app/java folder.There are four java files, two layout XML files, and one menu XML file in this example.If you can not watch the above video, you can see it on the youtube URL 3. When clicking the Add menu item, it will add a car to the list randomly, when clicking the Delete menu item, it will automatically delete a car in the list also.īelow is the screen without use AppBarLayout to wrap Toolbar.

The RecyclerView use LinearLayoutManager to list some car image and text. The Toolbar contains two menu items Add and Delete.

In this example, there is a Toolbar and a RecyclerView on the screen.

Scroll RecyclerView To Show / Hide Toolbar Example.

enterAlways: This means when RecyclerView scrolls down, the Toolbar will scroll down and display again.

snap: Snap indicates that when Toolbar is not fully hidden or displayed, it will automatically select whether it is hidden or displayed on the basis of the current rolling distance.

scroll: Scroll means when the RecyclerView scrolls up, the Toolbar will scroll up also and be hidden.

The Toolbar property app:layout_scrollFlags‘s value can be followings.

You can set the behavior by configuring Toolbar‘s app:layout_scrollFlag property value as below. Wrapped by AppBarLayout, the Toolbar will be hidden when the user scrolls RecyclerView down, and it will be shown again when the user scrolls RecyclerView up.How To Control Android App Toolbar Show / Hide Behavior. Public class ProductAdapter extends RecyclerView.1. Now we can create Adapter through which we can inflate our view package com.scrolloadrecycleview We need to create Getter Setter to hold data create new class and paste Note that you need to add RecyclerView dependency in your adle file compile ':recyclerview-v7:23.4.0' Now in your activity_main.xml file add RecyclerView and progressbar which we show when user scroll come to end.

Scroll bar android studio recyclerview