AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="uk.ac.ncl.b5027438.CEG3799">

    <uses-sdk
        android:minSdkVersion="9"
        android:targetSdkVersion="19" />

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_GPS" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    <uses-feature
        android:name="android.hardware.camera"
        android:required="true" />
    <uses-feature
        android:name="android.hardware.location"
        android:required="true" />
    <uses-feature
        android:name="android.hardware.sensor.accelerometer"
        android:required="true" />
    <uses-feature
        android:name="android.hardware.sensor.compass"
        android:required="true" />
    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <!--
    <activity android:name="uk.ac.ncl.b5027438.CEG3799.MainActivity"
        android:configChanges="screenSize|orientation"/>
        !
    -->

    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

    <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=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            android:configChanges="screenSize|orientation"
        </activity>
        <activity android:name=".index" />
        <activity android:name=".AR"></activity>
    </application>

</manifest>