在Android 4.1之前，方法android.graphics.PorterDuffColorFilter ---会错误地覆盖包 [英] Before Android 4.1, method android.graphics.PorterDuffColorFilter --- would have incorrectly overridden the package

问题描述

我正在使用导航抽屉活动android studio 和 Firebase身份验证。当我要运行这个应用程序时，我得到这个错误。

I am using navigation drawer activity android studio and Firebase Authentication. When i going to run this app than i get this error.

  W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable

我还使用最少版本的SDK和构建工具......

I am also using least version SDK and build tool...

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.2"
}

推荐答案

Android曾经在 Dalvik VM上运行 。

Android used to run on Dalvik VM.

Dalvik 有一个错误，允许类覆盖父包的私有方法。

Dalvik had a bug allowing classes to override parent's package-private methods.

所以当他们切换到 ART 时，他们修复了这个，所以它不再覆盖父方法，
现在当检测到这样的场景，它会记录一个警告，确保你知道行为的变化。

So when they switched to ART, they fixed this, so it no longer overrides the parent's method, Now when such a scenario is detected, it logs a warning, making sure you're aware of the behavior change.

似乎有些 support-lib classes（ PorterDuffColorFilter ， VectorDrawableCompat ）有这样的场景，所以 ART 通知你。

It seems that some support-lib classes (PorterDuffColorFilter, VectorDrawableCompat) have such scenario, so ART notifies you.

我认为忽略这一点是安全的，除非这是你自己的代码，在这种情况下我会改变方法的在Android上运行 Dalvik （4.1之前）并运行 ART （4.1 +）

I think it's safe to ignore this, unless this is your own code, in which case I would either change the method's name, or test on Android running Dalvik (pre-4.1) and running ART (4.1+)

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