在project.properties里加上 proguard.config=proguard.cfg
proguard.cfg 配置如下：
-optimizationpasses 5
-dontusemixedcaseclassnames-dontskipnonpubliclibraryclasses-dontpreverify-verbose-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*#忽略警告 也可以用-ignorewarnings
-dontwarn#声明第三方jar包,不用管第三方jar包中的.so文件(如果有)
-libraryjars libs/baidumapapi.jar-libraryjars libs/tencent_openapi.jar-libraryjars libs/httpmime-4.1.3.jar-libraryjars libs/weibo.sdk.android.sso.jar-libraryjars libs/android-support-v4.jar-keep public class * extends android..Activity
-keep public class * extends android.app.Application-keep public class * extends android.app.Service-keep public class * extends android.content.BroadcastReceiver-keep public class * extends android.content.ContentProvider-keep public class * extends android.app.backup.BackupAgentHelper-keep public class * extends android.preference.Preference-keep public class .android.vending.licensing.ILicensingService-keepclasseswithmembernames class * {
native <methods>;}-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);}-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);}-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);}-keepclassmembers enum * {
public static **[] values();public static ** valueOf(java.lang.String);}-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;}#不混淆第三方jar包中的类
-keep class com.baidu.mapapi.** {*;}-keep class com.tencent.tauth.** {*;}-keep class org..http.entity.mime.** {*;}-keep class android.support.v4.** {*;}-keep class android..http.** {*;}-keep class com.weibo.sdk.android.** {*;}-keep class com.sina.sso.** {*;}说明一下，第三方jar包中如果有.so文件，不用去理会，引入的第三方jar文件不要混淆，否则可能会报异常