Android两步去掉Release版本Log日志

在APP项目的release配置中开启混淆配置，已经开启的就不用管了：

    buildTypes {
        debug {
        }
        release {
            // Enables code shrinking, obfuscation, and optimization for only
            // your project's release build type.
            minifyEnabled true

            // Enables resource shrinking, which is performed by the
            // Android Gradle plugin.
            shrinkResources true

            // Includes the default ProGuard rules files that are packaged with
            // the Android Gradle plugin. To learn more, go to the section about
            // R8 configuration files.
            proguardFiles getDefaultProguardFile(
                    'proguard-android-optimize.txt'),
                    'proguard-rules.pro'
        }
    ....

在代码混淆配置proguard-rules.pro添加下面的代码：

#-------------- 去掉所有打印 -------------
-assumenosideeffects class android.util.Log {
    public static *** d(...);
#    public static *** e(...);
    public static *** i(...);
    public static *** v(...);
    public static *** println(...);
    public static *** w(...);
    public static *** wtf(...);
}
-assumenosideeffects class android.util.Log {
   public static *** d(...);
   public static *** v(...);
}

-assumenosideeffects class android.util.Log {
#    public static *** e(...);
    public static *** v(...);
}

-assumenosideeffects class android.util.Log {
    public static *** i(...);
    public static *** v(...);
}

-assumenosideeffects class android.util.Log {
    public static *** w(...);
    public static *** v(...);
}
-assumenosideeffects class java.io.PrintStream {
    public *** println(...);
    public *** print(...);
}

参考：
https://blog.csdn.net/abccjf/article/details/79524573