|  | # Some classes in the libraries extend package private classes to chare common functionality | 
|  | # that isn't explicitly part of the API | 
|  | -dontskipnonpubliclibraryclasses -dontskipnonpubliclibraryclassmembers | 
|  |  | 
|  | # Annotations are implemented as attributes, so we have to explicitly keep them. | 
|  | # Keep all runtime-visible annotations like RuntimeVisibleParameterAnnotations | 
|  | # and RuntimeVisibleTypeAnnotations, as well as associated defaults. | 
|  | -keepattributes RuntimeVisible*Annotation*,AnnotationDefault | 
|  |  | 
|  | # For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations | 
|  | -keepclassmembers enum * { | 
|  | public static **[] values(); | 
|  | public static ** valueOf(java.lang.String); | 
|  | } | 
|  |  | 
|  | # For native methods, see http://proguard.sourceforge.net/manual/examples.html#native | 
|  | -keepclasseswithmembernames,includedescriptorclasses class * { | 
|  | native <methods>; | 
|  | } | 
|  |  | 
|  | # class$ methods are inserted by some compilers to implement .class construct, | 
|  | # see http://proguard.sourceforge.net/manual/examples.html#library | 
|  | -keepclassmembernames class * { | 
|  | java.lang.Class class$(java.lang.String); | 
|  | java.lang.Class class$(java.lang.String, boolean); | 
|  | } | 
|  |  | 
|  | # Keep serializable classes and necessary members for serializable classes | 
|  | # Copied from the ProGuard manual at http://proguard.sourceforge.net. | 
|  | -keepnames class * implements java.io.Serializable | 
|  | -keepclassmembers class * implements java.io.Serializable { | 
|  | static final long serialVersionUID; | 
|  | private static final java.io.ObjectStreamField[] serialPersistentFields; | 
|  | !static !transient <fields>; | 
|  | private void writeObject(java.io.ObjectOutputStream); | 
|  | private void readObject(java.io.ObjectInputStream); | 
|  | java.lang.Object writeReplace(); | 
|  | java.lang.Object readResolve(); | 
|  | } | 
|  |  | 
|  | # Keep Throwable's constructor that takes a String argument. | 
|  | -keepclassmembers class * extends java.lang.Throwable { | 
|  | <init>(java.lang.String); | 
|  | } | 
|  |  | 
|  | # Please specify classes to be kept explicitly in your package's configuration. | 
|  | # -keep class * extends android.app.Activity | 
|  | # -keep class * extends android.view.View | 
|  | # -keep class * extends android.app.Service | 
|  | # -keep class * extends android.content.BroadcastReceiver | 
|  | # -keep class * extends android.content.ContentProvider | 
|  | # -keep class * extends android.preference.Preference | 
|  | # -keep class * extends android.app.BackupAgent | 
|  |  | 
|  | # Parcelable CREATORs must be kept for Parcelable functionality | 
|  | -keep class * implements android.os.Parcelable { | 
|  | public static final ** CREATOR; | 
|  | } | 
|  |  | 
|  | # 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. | 
|  | # See proguard-android.txt in the SDK package. | 
|  | # | 
|  | # DO NOT USE THIS: We figured it's dangerous to blindly ignore all support library warnings. | 
|  | # ProGuard may strip members of subclass of unknown super classes, in case an app is linking against | 
|  | # LOCAL_SDK_VERSION lower than the support library's LOCAL_SDK_VERSION. | 
|  | # See bug/20658265. | 
|  | # -dontwarn android.support.** | 
|  |  | 
|  | # From https://github.com/google/guava/wiki/UsingProGuardWithGuava | 
|  | # Striped64, LittleEndianByteArray, UnsignedBytes, AbstractFuture | 
|  | -dontwarn sun.misc.Unsafe | 
|  | # Futures.getChecked (which often won't work with Proguard anyway) uses this. It | 
|  | # has a fallback, but again, don't use Futures.getChecked on Android regardless. | 
|  | -dontwarn java.lang.ClassValue | 
|  |  | 
|  | # Ignore missing annotation references for various support libraries. | 
|  | # While this is not ideal, it should be relatively safe given that | 
|  | # 1) runtime-visible annotations will still be kept, and 2) compile-time | 
|  | # annotations are stripped by R8 anyway. | 
|  | # Note: The ** prefix is used to accommodate jarjar repackaging. | 
|  | # TODO(b/242088131): Remove these exemptions after resolving transitive libs | 
|  | # dependencies that are provided to R8. | 
|  | -dontwarn **android**.annotation*.** | 
|  | -dontwarn **com.google.errorprone.annotations.** | 
|  | -dontwarn javax.annotation.** | 
|  | -dontwarn org.checkerframework.** | 
|  | -dontwarn org.jetbrains.annotations.** | 
|  |  | 
|  | # Less spammy. | 
|  | -dontnote | 
|  |  | 
|  | # The lite proto runtime uses reflection to access fields based on the names in | 
|  | # the schema, keep all the fields. Wildcard is used to apply the rule to classes | 
|  | # that have been renamed with jarjar. | 
|  | -keepclassmembers class * extends **.protobuf.MessageLite { <fields>; } |