Android Studio - Tutorial Fullscreen Activity

4FA_AndroidManifest.xml

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

    <application
            android:allowBackup="true"
            android:icon="@mipmap/ic_launcher"               
            android:label="@string/app_name"                 
            android:roundIcon="@mipmap/ic_launcher_round"    
            android:supportsRtl="true"
            android:theme="@style/AppTheme">
        <activity
                android:name=".FullscreenActivity"
                android:configChanges="orientation|keyboardHidden|screenSize"
                android:label="@string/app_name"
                android:theme="@style/FullscreenTheme">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>

                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
    </application>

</manifest>