Greystripe和proguard

Question

因此，我们已经到了Android游戏开发的最后阶段，是时候对Proguard进行一些混淆了。

我们的游戏使用的是Greystripe广告，在编译调试版本时一切正常，目标是API7。

但在编译发布版本时(在过程中添加了Proguard )，会有大量的警告：

Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.DeviceInfo: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.GSFullscreenActivity: can't find referenced class android.hardware.Camera$CameraInfo
Warning: com.greystripe.sdk.GSFullscreenActivity: can't find referenced class android.hardware.Camera$CameraInfo
Warning: com.greystripe.sdk.GSFullscreenActivity: can't find referenced method 'void getCameraInfo(int,android.hardware.Camera$CameraInfo)' in class android.hardware.Camera
Warning: com.greystripe.sdk.GSFullscreenActivity: can't find referenced method 'int getNumberOfCameras()' in class android.hardware.Camera
Warning: com.greystripe.sdk.GSFullscreenActivity: can't find referenced method 'android.hardware.Camera open(int)' in class android.hardware.Camera
Warning: com.greystripe.sdk.GSFullscreenActivity: can't find referenced method 'void setDisplayOrientation(int)' in class android.hardware.Camera
Warning: com.greystripe.sdk.GSFullscreenActivity: can't find referenced class android.hardware.Camera$CameraInfo
Warning: com.greystripe.sdk.GSFullscreenActivity: can't find referenced method 'void setLayerType(int,android.graphics.Paint)' in class com.greystripe.sdk.aa
Warning: com.greystripe.sdk.a: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.a: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.ah: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.aj: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.aj: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.aj: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.as: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.as: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.as: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.as: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.as: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.at: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.at: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.bd: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.be: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.be: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.be: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.be: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.be: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.be: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.bh: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.bh: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.bl: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.bl: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.bl: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.bl: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.bl: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.m: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.m: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.m: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.m: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.m: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.m: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.m: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.m: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.m: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.s: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.s: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: com.greystripe.sdk.w: can't find referenced class android.webkit.JavascriptInterface
Warning: there were 64 unresolved references to classes or interfaces.
     You may need to specify additional library jars (using '-libraryjars').
Warning: there were 5 unresolved references to program class members.
     Your input classes appear to be inconsistent.
     You may need to recompile them and try again.
     Alternatively, you may have to specify the option 
     '-dontskipnonpubliclibraryclassmembers'.

所以很明显，我开始尝试了-keep class和-keep public class等许多不同的变体，但都没有任何效果。然后我开始用谷歌搜索，发现了很多论坛帖子，人们都有类似的问题，我尝试了所有人们回复的建议。仍然没有变化。

然后我看了看android.jar，发现android.webkit.JavascriptInterface并没有在API17之前引入，这当然是有意义的。因为我的目标是API7，所以自然没有可用的android.webkit.JavascriptInterface。

但我不想仅仅因为广告就瞄准API 17，我也非常确定我也不应该这样做。

从逻辑上讲，我认为我应该能够只使用-dontwarn，但这样做会导致应用程序在加载时崩溃。

当然，我确保将-libraryjars /path/to/libs/greystripe-android-sdk-2.3.0.jar和/path/to/android.jar

有谁对此有什么线索吗？我如何混淆我的应用程序，同时离开greystripe-sdk jar？

Answer 1

读完输入后，ProGuard会立即打印这些警告，所以-keep选项不会有任何帮助。您应该根据API17进行构建，这样ProGuard就可以找到分析和处理应用程序所需的所有类。您仍然可以在AndroidManifest.xml中指定不同的目标。

如果您正在使用标准的Ant/Eclipse/Gradle构建，则不应该指定-libraryjars，因为这些构建已经为您完成了这项工作。

Answer 2

将以下内容添加到ProGuard文件中：

-keep class com.greystripe.** { *; }

这应该会消除警告，并允许Greystripe SDK按预期运行。

如果由于某种原因，这行代码不能修复它，可以尝试这样做：

-keep class com.greystripe.** { *; }

-keepclassmembers class com.greystripe.** { public *; }

Answer 3

虽然我现在没有时间来测试它(我还有一堆其他的事情要做)，但我想在它还在我脑海中的时候把它写在这里。然后，我们将在稍后看到它是否成为解决方案。

重要的是要记住: targetSdkVersion与build版本不同。

在使用Greystripe类的情况下，它们显然会测试某些Android类是否存在，这些类只在API 17之后才可用，您应该将构建目标设置为API 17。这意味着您将使用API 17中提供的类进行编译。因此，Proguard不应给出警告。

不过，在您的AndroidManifest.xml文件中，您不必将targetSdkVersion=放入“17”。您可以将其设置为任何您想要的目标。(尽管由于ICS和菜单按钮问题，建议始终以API 14或更高版本为目标)。

因此，最优设置(理论上，必须稍后测试)现在就是设置

build target = API 17 -避免出现警告，因为Greystripe API引用了API 17 sdkTargetVersion >= 14中的类-因为兼容性问题。将其设置为您可以在minTargetVersion =7上测试的应用程序接口版本(如果您的应用程序将在API7上运行)-因为根据文档，Greystripe API应该在API7上运行

那么一切都应该能正常工作。

更多(半)相关阅读：http://simonvt.net/2012/02/07/what-api-level-should-i-target/ http://developer.android.com/guide/topics/manifest/uses-sdk-element.html https://developer.android.com/reference/android/os/Build.VERSION_CODES.html#ICE_CREAM_SANDWICH