带有 proguard-rules 的 Android 应用程序崩溃

Question

我的应用程序在不应用 pro-guard-rules 的情况下运行良好，但出于安全目的，我必须在我的应用程序中应用 pro-guard-rules。 我在应用规则并尝试运行我的应用程序时遇到了这些错误。

 FATAL EXCEPTION: main
                                                                    Process: com.nearely.nearelysales, PID: 4275
                                                                    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nearely.nearelysales/com.nearely.nearelysales.activities.MainActivity}: java.lang.NullPointerException
                                                                        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
                                                                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
                                                                        at android.app.ActivityThread.access$800(ActivityThread.java:135)
                                                                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
                                                                        at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                        at android.os.Looper.loop(Looper.java:136)
                                                                        at android.app.ActivityThread.main(ActivityThread.java:5001)
                                                                        at java.lang.reflect.Method.invokeNative(Native Method)
                                                                        at java.lang.reflect.Method.invoke(Method.java:515)
                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
                                                                        at dalvik.system.NativeStart.main(Native Method)
                                                                     Caused by: java.lang.NullPointerException
                                                                        at com.nearely.nearelysales.activities.MainActivity.k(Unknown Source)
                                                                        at com.nearely.nearelysales.activities.MainActivity.onCreate(Unknown Source)
                                                                        at android.app.Activity.performCreate(Activity.java:5231)
                                                                        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
                                                                        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
                                                                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) 
                                                                        at android.app.ActivityThread.access$800(ActivityThread.java:135) 
                                                                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
                                                                        at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                        at android.os.Looper.loop(Looper.java:136) 
                                                                        at android.app.ActivityThread.main(ActivityThread.java:5001) 
                                                                        at java.lang.reflect.Method.invokeNative(Native Method) 
                                                                        at java.lang.reflect.Method.invoke(Method.java:515) 
                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 
                                                                        at dalvik.system.NativeStart.main(Native Method)  

这是我的 progurd-rules 文件：

proguard-rules.pro

-injars      libs
-outjars     bin/classes-processed.jar
# -libraryjars C:\dev\android-sdk\platforms\android-23\android.jar

-dontpreverify
-repackageclasses ''
-allowaccessmodification
-optimizations !code/simplification/arithmetic
-keepattributes *Annotation*

-keep public class * extends android.app.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.view.View {
    public <init>(android.content.Context);
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
    public void set*(...);
}

-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.content.Context {
   public void *(android.view.View);
   public void *(android.view.MenuItem);
}

-keepclassmembers class * implements android.os.Parcelable {
    static ** CREATOR;
}

-keepclassmembers class **.R$* {
    public static <fields>;
}

-keepclassmembers class * {
    @android.webkit.JavascriptInterface <methods>;
}

-dontwarn butterknife.internal.**
-keep class **$$ViewInjector { *; }
-keepnames class * { @butterknife.InjectView *;}

-keep class javax.ws.rs.** { *; }
-dontwarn org.immutables.gson.**

-dontwarn android.test.**
-dontwarn org.junit.**

Answer 1

似乎您使用了 volley 并且使用 proguard 使您的应用程序崩溃。 您可以将此行写入您的 proGuard。

-keep class org.apache.commons.logging.**

Answer 2

在你的应用中设置 Proguard 启用后，所有的 Proguard 自定义规则取决于你是否在应用程序的初始阶段或中间或以后设置了 Proguard。

1. 首字母

这意味着如果您在您的应用程序中集成任何第三方库，如果该库提供或支持proguard，则规则将由其自己设置。

2.中后期

中间如果你在你的应用中设置了proguard，并且你已经集成了很多第三方库，则意味着每个库都是无规则集成的。然后你需要在你的 proguard-rules.pro 文件中设置自定义规则。

应用崩溃的情况有很多。一个是你使用的Pojo类或模型类被proguard混淆了，所以你需要在proguard-rules.pro文件中设置规则 喜欢：

-keep class * {
     public private *;
}

或以其他方式根据要求使用以下代码

-dontwarn com.squareup.okhttp.**
-ignorewarnings
-keep class * {
    public private *;
}

-keep class com.google.android.gms.* { *; }
-dontwarn com.google.android.gms.**

-dontwarn org.xmlpull.v1.**
-dontnote org.xmlpull.v1.**
-keep class org.xmlpull.* { *; }

#retRofit
# Platform calls Class.forName on types which do not exist on Android to determine platform.
-dontnote retrofit2.Platform
# Platform used when running on RoboVM on iOS. Will not be used at runtime.
-dontnote retrofit2.Platform$IOS$MainThreadExecutor
# Platform used when running on Java 8 VMs. Will not be used at runtime.
-dontwarn retrofit2.Platform$Java8
# Retain generic type information for use by reflection by converters and adapters.
-keepattributes Signature
# Retain declared checked exceptions for use by a Proxy instance.
-keepattributes Exceptions
-keepclasseswithmembers class * {
    @retrofit2.http.* <methods>;
}
# Orm
-keep class * extends com.raizlabs.android.dbflow.config.DatabaseHolder.* { *; }
-keepclassmembers class * {
    native <methods>;
}
-dontwarn okio.**
-dontwarn com.squareup.okhttp.**
-dontwarn okhttp3.**
-dontwarn javax.annotation.**
-dontwarn com.android.volley.toolbox.**

# com.github.siyamed:android-shape-imageview
-dontwarn android.support.v7.**
-keepattributes *Annotation,Signature
-dontwarn com.github.siyamed.**
-keep class com.github.siyamed.shapeimageview.*{ *; }
-dontwarn org.xmlpull.v1.**
-dontwarn uk.co.senab.photoview.**

#Image Cropper
-keep class androidx.appcompat.widget.* { *; }



# Keep source file names, line numbers, and Parse class/method names for easier debugging
 -keepattributes SourceFile,LineNumberTable
 -keepnames class com.parse.* { *; }


 # Required for Parse
 -keepattributes *Annotation*
 -keepattributes Signature
 -dontwarn com.squareup.**
 -dontwarn okio.**


-keepattributes SourceFile,LineNumberTable
-keep class com.parse.*{ *; }
-dontwarn com.parse.**
-dontwarn com.squareup.picasso.**
-keepclasseswithmembernames class * {
    native <methods>;
}