ProGuard file

    # To enable ProGuard in your project, edit project.properties
    # to define the proguard.config property as described in that file.
    #
    # Add project specific ProGuard rules here.
    # By default, the flags in this file are appended to flags specified
    # in ${sdk.dir}/tools/proguard/proguard-android.txt
    # You can edit the include path and order by changing the ProGuard
    # include property in project.properties.
    #
    # For more details, see
    #   http://developer.android.com/guide/developing/tools/proguard.html

    # Add any project specific keep options here:

    # Needed to keep the JNI functions around
    -keepclassmembers class com.epicgames.ue4.GameActivity {
    	public *;
    }
    -keep class * extends android.media.MediaPlayer {
    	public *;
    }
    -keep class com.epicgames.ue4.MediaPlayer14 {
    	public *;
    }
    -keep class com.epicgames.ue4.MessageBox01 {
    	public *;
    }
    -keep class com.epicgames.ue4.WebViewControl {
    	public *;
    }
    -keep class com.epicgames.ue4.BatteryReceiver {
    	public *;
    }
    -keep class com.epicgames.ue4.HeadsetReceiver {
    	public *;
    }
    -keep class com.epicgames.ue4.VolumeReceiver {
    	public *;
    }
    -keep class com.epicgames.ue4.LocalNotificationReceiver {
    	public *;
    }

    # Needed...

    -keep class com.epicgames.ue4.GameActivity$LaunchNotification {
    	public *;
    }

    -keep class com.epicgames.ue4.GameActivity$InputDeviceInfo {
    	public *;
    }
    -keep class com.epicgames.ue4.GameActivity$JavaAchievement {
    	public *;
    }
    -keep class com.epicgames.ue4.MediaPlayer14$AudioTrackInfo {
    	public *;
    }
    -keep class com.epicgames.ue4.MediaPlayer14$CaptionTrackInfo {
    	public *;
    }
    -keep class com.epicgames.ue4.MediaPlayer14$VideoTrackInfo {
    	public *;
    }

    -keep class com.epicgames.ue4.WebViewControl {
    	public *;
    }

    -keep class com.epicgames.ue4.WebViewControl$ViewClient {
    	public *;
    }

    -keep class com.epicgames.ue4.WebViewControl$ChromeClient {
    	public *;
    }

    # If your project uses WebView with JS, uncomment the following
    # and specify the fully qualified class name to the JavaScript interface
    # class:
    #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
    #   public *;
    #}

    # Proguard flags for consumers of the Google Play services SDK
    # https://developers.google.com/android/guides/setup#add_google_play_services_to_your_project

    -keep class * extends java.util.ListResourceBundle {
    	protected Object[][] getContents();
    }

    # Keep SafeParcelable value, needed for reflection. This is required to support backwards
    # compatibility of some classes.
    -keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {
    	public static final *** NULL;
    }

    # Needed for Parcelable/SafeParcelable classes & their creators to not get renamed, as they are
    # found via reflection.
    -keepnames class * implements android.os.Parcelable
    -keepclassmembers class * implements android.os.Parcelable {
    	public static final *** CREATOR;
    }

    # Keep the classes/members we need for client functionality.
    -keep @interface android.support.annotation.Keep
    -keep @android.support.annotation.Keep class *
    -keepclasseswithmembers class * {
    	@android.support.annotation.Keep <fields>;
    }
    -keepclasseswithmembers class * {
    	@android.support.annotation.Keep <methods>;
    }

    # Keep the names of classes/members we need for client functionality.
    -keep @interface com.google.android.gms.common.annotation.KeepName
    -keepnames @com.google.android.gms.common.annotation.KeepName class *
    -keepclassmembernames class * {
    	@com.google.android.gms.common.annotation.KeepName *;
    }

    # Keep Dynamite API entry points
    -keep @interface com.google.android.gms.common.util.DynamiteApi
    -keep public @com.google.android.gms.common.util.DynamiteApi class * {
    	public <fields>;
    	public <methods>;
    }

    # Keep @UsedByReflection and @UsedByNative
    -keep class com.google.android.apps.common.proguard.UsedBy*
    -keep @com.google.android.apps.common.proguard.UsedBy* class *
    -keepclassmembers class * {
    	@com.google.android.apps.common.proguard.UsedBy* *;
    }

    # Needed when building against pre-Marshmallow SDK.
    -dontwarn android.security.NetworkSecurityPolicy

    # Needed when building against Marshmallow SDK.
    -dontwarn android.app.Notification

    # End Google Play services requirements

    # Additional Google Play Services that seems to be needed
    -keep class com.google.android.gms.games.NativeSdkCallbacks {
    	*;
    }
    -keep public class com.google.android.gms.**
    {
    	public *;
    }
    -dontwarn com.google.android.gms.**

    # Google Play Admob
    -keep public class com.google.android.gms.ads.** {
    	public *;
    }

    -keep public class com.google.ads.** {
    	public *;
    }

    # Google Play Billing Services for In-App Purchases
    -keep class com.android.vending.billing.** {
    	*;
    }

    -keep class com.android.vending.licensing.** {
    	*;
    }

    -keep class com.google.vending.licensing.** {
    	*;
    }

    -keep class epicgames.ue4.StoreHelper.** {
    	public *;
    }

    -keep class epicgames.ue4.GooglePlayStoreHelper.** {
    	public *;
    }

    -dontwarn com.google.vr.cardboard.AndroidNCompat
    -dontwarn com.google.vr.cardboard.StoragePermissionUtils