java - 迁移到 v28.0.0 支持库后 Android gradle 构建失败

Question

升级到 v28.0.0 Android 支持库(从 27.1.1 开始)后，我的构建失败并出现以下异常:

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'

原因:

Warning: androidx.media.AudioAttributesCompatParcelizer: can't find referenced field 'android.support.v4.media.AudioAttributesImpl mImpl' in program class android.support.v4.media.AudioAttributesCompat
Warning: androidx.media.AudioAttributesImplApi21Parcelizer: can't find referenced field 'android.media.AudioAttributes mAudioAttributes' in program class android.support.v4.media.AudioAttributesImplApi21
Warning: androidx.media.AudioAttributesImplApi21Parcelizer: can't find referenced field 'int mLegacyStreamType' in program class android.support.v4.media.AudioAttributesImplApi21
Warning: androidx.media.AudioAttributesImplBaseParcelizer: can't find referenced field 'int mUsage' in program class android.support.v4.media.AudioAttributesImplBase
Warning: androidx.media.AudioAttributesImplBaseParcelizer: can't find referenced field 'int mContentType' in program class android.support.v4.media.AudioAttributesImplBase
Warning: androidx.media.AudioAttributesImplBaseParcelizer: can't find referenced field 'int mFlags' in program class android.support.v4.media.AudioAttributesImplBase
Warning: androidx.media.AudioAttributesImplBaseParcelizer: can't find referenced field 'int mLegacyStream' in program class android.support.v4.media.AudioAttributesImplBase

我试过添加

-keep class android.support.v4.media.** { *; }

到我的 Gradle 配置，但错误仍然存​​在。

谁能提供任何帮助？

谢谢，

乔希

Answer 1

我不知道这是否是最佳解决方案，但在将这些行添加到我的 proguard-rules.pro 文件后，它解决了问题:

-dontwarn androidx.**
-keep class androidx.** { *; }
-keep interface androidx.** { *; }