opencv/samples/android/tutorial-4-mixed/AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="org.opencv.samples.tutorial4"
      android:versionCode="1"
      android:versionName="1.0">

    <supports-screens android:resizeable="true"
                      android:smallScreens="true" 
                      android:normalScreens="true" 
                      android:largeScreens="true" 
                      android:anyDensity="true" />

    <application android:label="@string/app_name" android:icon="@drawable/icon">
        <activity android:name="Sample4Mixed"
                  android:label="@string/app_name"
                  android:screenOrientation="landscape"
                  android:configChanges="keyboardHidden|orientation">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
    
    <uses-sdk android:minSdkVersion="8" />

    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-feature android:name="android.hardware.camera" />
    <uses-feature android:name="android.hardware.camera.autofocus" />

</manifest>