Class no longer obfuscated after upgrading to Android Gradle plugin 3.4.0
问题 After upgrading to Android Gradle plugin 3.4.0, a basic class no longer gets obfuscated. The following basic steps can reproduce the problem: In Android Studio create a new empty project In app/build.gradle change minifyEnabled to true Create the following class, ProguardTestClass.java : public class ProguardTestClass { public interface ProguardTestInnerInterface { void proguardTestCallback(String message); } public static void proguardTestMethod(String input, ProguardTestInnerInterface impl)