android - android中StringDef注释的保护规则是什么？

public class AssetsHelper {

    @StringDef({ScreenDensity.XHDPI,ScreenDensity.HDPI, ScreenDensity.XXHDPI})
    @Retention(RetentionPolicy.SOURCE)
    public @interface ScreenDensity {
        String HDPI = "HDPI";
        String XHDPI = "XHDPI";
        String XXHDPI = "XXHDPI";
    }
}

当我在android sdk的tools文件夹中使用默认pro-guard规则时，我得到了ScreenDensity的错误。什么是pro-guard规则来防止这个StringDefScreenDensity被混淆？

最佳答案

尝试添加此Proguard规则：

-keepclassmembers class ** {
  @your.package.AssetsHelper.ScreenDensity public *;
}