Android 9 Development Cookbook - Third Edition

How to do it...

We will create ImageView to serve as the host view to initialize Contextual Mode. Since Contextual Mode is usually triggered with a long press, we will set up a long click listener in onCreate() for ImageView. When called, we will start Contextual Mode and pass an ActionMode callback to handle the Contextual Mode events. Here are the steps:

1. We will start by adding two new string resources. Open the strings.xml file and add the following:

    <string name="menu_cast">Cast</string> 
    <string name="menu_print">Print</string> 

2. With the strings created, we can now create the menu by creating a new file in res/menu called context_menu.xml using the following XML:

    <?xml version="1.0" encoding="utf-8"?>    <menu xmlns:android="http://schemas.android.com/apk/res/android" ...