May 2022
Intermediate to advanced
688 pages
20h 12m
English
book
Android Programming: The Big Nerd Ranch Guide, 5th Edition
by Bryan Sills, Brian Gardner, Kristin Marsicano, Chris Stewart
Content preview from Android Programming: The Big Nerd Ranch Guide, 5th Edition
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Declaring Features
Your camera implementation works great now. One more task remains: Tell potential users about it. When your app uses a feature like the camera – or near-field communication, or any other feature that may vary from device to device – it is strongly recommended that you tell Android about it. This allows other apps (like the Play Store) to refuse to install your app if it uses a feature the device does not support.
To declare that you use the camera, add a <uses-feature> tag to your manifest.
Listing 17.17 Adding a <uses-feature> tag (manifests/AndroidManifest.xml)
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.bignerdranch.android.criminalintent" >
<uses-feature android:name="android.hardware.camera" ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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