通过 Proguard 发布输出失败 (Android)

Question

我的应用程序运行在 dedug 模式下正确，没有问题。但是当尝试发布应用时遇到以下警告：

  Warning:android.support.v4.media.session.MediaSessionCompatApi22: can't find referenced method 'void setRatingType(int)' in library class android.media.session.MediaSession
  Warning:android.support.v4.view.accessibility.AccessibilityNodeInfoCompatApi22: can't find referenced method 'android.view.accessibility.AccessibilityNodeInfo getTraversalBefore()' in library class android.view.accessibility.AccessibilityNodeInfo
  Warning:android.support.v4.view.accessibility.AccessibilityNodeInfoCompatApi22: can't find referenced method 'void setTraversalBefore(android.view.View)' in library class android.view.accessibility.AccessibilityNodeInfo
  Warning:android.support.v4.view.accessibility.AccessibilityNodeInfoCompatApi22: can't find referenced method 'void setTraversalBefore(android.view.View,int)' in library class android.view.accessibility.AccessibilityNodeInfo
  Warning:android.support.v4.view.accessibility.AccessibilityNodeInfoCompatApi22: can't find referenced method 'android.view.accessibility.AccessibilityNodeInfo getTraversalAfter()' in library class android.view.accessibility.AccessibilityNodeInfo
  Warning:android.support.v4.view.accessibility.AccessibilityNodeInfoCompatApi22: can't find referenced method 'void setTraversalAfter(android.view.View)' in library class android.view.accessibility.AccessibilityNodeInfo
  Warning:android.support.v4.view.accessibility.AccessibilityNodeInfoCompatApi22: can't find referenced method 'void setTraversalAfter(android.view.View,int)' in library class android.view.accessibility.AccessibilityNodeInfo
  Warning:there were 7 unresolved references to library class members.
         You probably need to update the library versions.
     (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedlibraryclassmember)
:app:proguardRelease FAILED

FAILURE: Build failed with an exception.

在搜索中我发现 this link and this one。

所以，I changed the compileSdkVersion & targetSdkVersion from 21 to 22 但不起作用！

其他gradle 详情：

    compileSdkVersion 21
    buildToolsVersion "22.0.1"
    minSdkVersion 15
    targetSdkVersion 21

buildTypes {

    debug {

        buildConfigField "String", "key", "\"value\""
    }
    release {

        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard_file.txt')

        buildConfigField "String", "key", "\"value\""

    }

}

是我的失误还是发生了其他事情！？

Answer 1

把这个放在你的proguard文件中-dontwarn android.support.v4.**

通过 Proguard 发布输出失败 (Android)

Fail in release output via Proguard (Android)

android

android-proguard