January 2017
Beginner to intermediate
624 pages
22h 42m
English
book
Android Programming: The Big Nerd Ranch Guide, Third Edition
by Bill Phillips, Chris Stewart, Kristin Marsicano
Content preview from Android Programming: The Big Nerd Ranch Guide, Third Edition
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An Alternative Action Item
In this section, you will use what you have learned about menu resources to add an action item that lets users show and hide a subtitle displaying the number of crimes from CrimeListActivity’s toolbar.
In res/menu/fragment_crime_list.xml, add an action item that will read SHOW SUBTITLE and will appear in the toolbar if there is room. (The all-caps formatting is courtesy of the toolbar’s inherent styles; you have seen similar formatting on buttons.)
Listing 13.12 Adding SHOW SUBTITLE action item (res/menu/fragment_crime_list.xml)
<menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"> <item android:id="@+id/new_crime" android:icon="@android:drawable/ic_menu_add" ...
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