我正在尝试发布启用了proguard的应用程序。没有proguard，该应用程序可以正常运行。但是，使用proguard，应用程序将在下面的代码中因ClassCastException崩溃。
Uri.Builder builder = Uri.parse(Constant.GET_HOME_BANNER_DATA).buildUpon();
GsonRequest gsonRequest = new GsonRequest<HomeBannerDataList>(Request.Method.GET, builder.toString(),
HomeBannerDataList.class, hashHeader, null, new Response.Listener<HomeBannerDataList>() {
@Override
public void onResponse(HomeBannerDataList response) {
if (response == null || response.size() <= 0) {
return;
}
if (response.get(0).savingscheme != null) {
if (response.get(0).savingscheme.getData() != null && response.get(0).savingscheme.getData().size() > 0) {
if (!TextUtils.isEmpty(response.get(0).savingscheme.getData().get(0).getDescription())) {
Utility.setSavingSchemeText(response.get(0).savingscheme.getData().get(0).getDescription());
}
if (!TextUtils.isEmpty(response.get(0).savingscheme.getData().get(0).getMediumimage())) {
Utility.setSavingSchemeBanner(Constant.PRODUCT_IMAGE_URL + response.get(0).savingscheme.getData().get(0).getMediumimage());
}
}
}
例外情况如下。
Fatal Exception: java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to com.g----ls.o----a.beans.HomeBannerData
at com.grtjewels.oriana.fragment.homefragment.HomeFragmentImpPresenter$1.onResponse(Unknown Source)
at com.gr----ls.o---na.webservice.GsonRequest.deliverResponse(Unknown Source)
at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6123)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)
下面是proguard rules.pro文件。
# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in D:\AndroidSDK\adt-bundle-windows-x86_64-20140702\sdk/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the proguardFiles
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# Add any project specific keep options here:
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
#}
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontwarn com.google.**
#-keep class com.google.** { *;}
#-keep class com.facebook.** { *; }
#-keepattributes Signature
-keep public class * implements com.bumptech.glide.module.GlideModule
-keep class sun.misc.Unsafe { *; }
-keep class com.google.gson.stream.** { *; }
#-keep class com.android.volley.** {*;}
#-keep class com.android.volley.toolbox.** {*;}
#-keep class com.android.volley.Response$* { *; }
#-keep class com.android.volley.Request$* { *; }
#-keep class com.android.volley.RequestQueue$* { *; }
##-keep class com.android.volley.toolbox.HurlStack$* { *; }
##-keep class com.android.volley.toolbox.ImageLoader$* { *; }
-keepclassmembers class ** {
@com.some.package.server.JsonDeserializerWithOptions$FieldRequired public *;
}
#-keep @interface com.some.package.server.JsonDeserializerWithOptions$FieldRequired
#-keep class com.some.package.server.JsonDeserializerWithOptions
#-keepclassmembers,allowshrinking,allowobfuscation class com.android.volley.NetworkDispatcher {
# void processRequest();
#}
#-keepclassmembers,allowshrinking,allowobfuscation class com.android.volley.CacheDispatcher {
# void processRequest();
#}
# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames class * {
native <methods>;
}
# keep setters in Views so that animations can still work.
# see http://proguard.sourceforge.net/manual/examples.html#beans
-keepclassmembers public class * extends android.view.View {
void set*(***);
*** get*();
}
# We want to keep methods in Activity that could be used in the XML attribute onClick
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keepclassmembers class **.R$* {
public static <fields>;
}
-keepclassmembers class * implements java.io.Serializable {
private static final java.io.ObjectStreamField[] serialPersistentFields;
private void writeObject(java.io.ObjectOutputStream);
private void readObject(java.io.ObjectInputStream);
java.lang.Object writeReplace();
java.lang.Object readResolve();
}
-keep class com.g----ls.o----a.beans.** { *; }
# The support library contains references to newer platform versions.
# Don't warn about those in case this app is linking against an older
# platform version. We know about them, and they are safe.
-dontwarn android.support.**
-dontwarn okio.**
-dontwarn org.codehaus.**
-keep public class org.jsoup.** {
public *;
}
我知道proguard文件存在问题。有人可以帮我解决这个问题吗？谢谢。
答案 0 :(得分：0)
如果不正确，则必须保留将由Gson反序列化的每个类。在这种情况下，您的 HomeBannerData 。
看看Gson Sample Project中的示例规则，尤其是第14行：
##---------------Begin: proguard configuration for Gson ----------
# Gson uses generic type information stored in a class file when working with fields. Proguard
# removes such information by default, so configure it to keep all of it.
-keepattributes Signature
# For using GSON @Expose annotation
-keepattributes *Annotation*
# Gson specific classes
-dontwarn sun.misc.**
#-keep class com.google.gson.stream.** { *; }
# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { *; }
# Prevent proguard from stripping interface information from TypeAdapterFactory,
# JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
-keep class * implements com.google.gson.TypeAdapterFactory
-keep class * implements com.google.gson.JsonSerializer
-keep class * implements com.google.gson.JsonDeserializer
##---------------End: proguard configuration for Gson ----------