[Android]添加admob或百度定位后，使用ProGuard混淆出错的解决方法

在我的android应用中,加入了google广告推广的第三方库admob jar, 但是在通过ProGuard混淆打包的时候找不到相关引用的类com.google.ads.internal.state.AdState

jar文件的位置是在 /libs/GoogleAdMobAdsSdk-6.2.1.jar

LogCat error:

Proguard returned with error code 1. See console

Warning:

com.google.ads.m: can't find referenced class com.google.ads.internal.state.AdState [/code]

Warning:com.google.ads.m: can't find referenced class com.google.ads.internal.state.AdState 

You should check if you need to specify additional program jars.

Warning:there were 2 unresolved references to classes or interfaces. 

You may need to specify additional library jars (using '-libraryjars').

java.io.IOException: Please correct the above warnings first. at proguard.Initializer.execute(Initializer.java:321) at proguard.ProGuard.initialize(ProGuard.java:211) at proguard.ProGuard.execute(ProGuard.java:86) at proguard.ProGuard.main(ProGuard.java:492)

只需要添加下面一句代码

-dontwarn com.google.ads.**

到proguard-project.txt文件中，就可以成功的生成签名apk了!