AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="net.zhuoweizhang.boardwalk"
      android:versionCode="11"
      android:versionName="1.2">
    <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <application android:label="@string/app_name" android:largeHeap="true"
        android:icon="@drawable/ic_launcher" android:theme="@style/BoardwalkTheme">
        <activity android:name="MainActivity"
            android:label="@string/app_name"
            android:configChanges="orientation|keyboardHidden"
            android:screenOrientation="sensorLandscape"
            android:theme="@style/FullscreenTheme">
            <!--<intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>-->
        </activity>
        <activity android:name="LauncherActivity"
            android:label="@string/app_name"
            android:configChanges="orientation|keyboardHidden">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="PostExitActivity"/>
        <activity android:name="NerdyStuffActivity"
            android:label="BoredNerd">
            <!--<intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>-->
        </activity>
        <activity android:name="AboutAppActivity"/>

        <activity android:name="com.ipaulpro.afilechooser.FileChooserActivity" />

        <activity
            android:name="com.google.android.gms.ads.AdActivity"
            android:theme="@android:style/Theme.Translucent"
            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" />

        <meta-data android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version"/>

    </application>
</manifest>