Add proguard flags from "android-proguard.txt"

# This is a configuration file for ProGuard based on "proguard-android.txt".

# http://proguard.sourceforge.net/index.html#manual/usage.html

-dontusemixedcaseclassnames

-dontskipnonpubliclibraryclasses

-verbose

# Optimization is turned off by default. Dex does not like code run

# through the ProGuard optimize and preverify steps (and performs some

# of these optimizations on its own).

-dontoptimize

-dontpreverify

-keepattributes *Annotation*

-keep public class com.google.vending.licensing.ILicensingService

-keep public class com.android.vending.licensing.ILicensingService

# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native

-keepclasseswithmembernames class * {

    native <methods>;

}

# Keep setters in Views so that animations can still work.

# see http://proguard.sourceforge.net/manual/examples.html#beans

-keepclassmembers public class * extends android.view.View {

   void set*(***);

   *** get*();

}

# Keep methods in Activity that could be used in the XML attribute onClick.

-keepclassmembers class * extends android.app.Activity {

   public void *(android.view.View);

}

# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations

-keepclassmembers enum * {

    public static **[] values();

    public static ** valueOf(java.lang.String);

}

-keep class * implements android.os.Parcelable {

  public static final android.os.Parcelable$Creator *;

}

-keepclassmembers class **.R$* {

    public static <fields>;

}

# The support library contains references to newer platform versions.

# Don't warn about those in case this app is linking against an older

# platform version.  We know about them, and they are safe.

-dontwarn android.support.**

# Some small BoundedRational methods like equals() are not used by the

# calculator, but crucial for testing.

-keepclassmembers class com.android.calculator2.BoundedRational { *; }