是“@Keep support annotation”规则在proguard android中吗-优化.txt在使用AndroidX时仍然适用?

proguard-android-optimize.txt 作为proguard文件。

proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-project.txt'

但是,当我浏览

...

-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.**

# Understand the @Keep support annotation.
-keep class android.support.annotation.Keep

-keep @android.support.annotation.Keep class * {*;}

-keepclasseswithmembers class * {
    @android.support.annotation.Keep <methods>;
}

-keepclasseswithmembers class * {
    @android.support.annotation.Keep <fields>;
}

-keepclasseswithmembers class * {
    @android.support.annotation.Keep <init>(...);
}

我想知道,如果这样的规则仍然适用,我们是否使用AndroidX而不是支持库?我们是否应该在我们的项目中显式地添加以下规则 proguard-project.txt

# Understand the @Keep support annotation.
-keep class androidx.annotation.Keep

-keep @androidx.annotation.Keep class * {*;}

-keepclasseswithmembers class * {
    @androidx.annotation.Keep <methods>;
}

-keepclasseswithmembers class * {
    @androidx.annotation.Keep <fields>;
}

-keepclasseswithmembers class * {
    @androidx.annotation.Keep <init>(...);
}