我需要为 Play 商店生成一个签名的 APK。(使用 Android Studio )如果我在没有 proguard 的情况下这样做( build.gradle 中的 minifyEnabled false )一切正常!
如果我使用默认参数激活它:
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
我收到这些警告
:app:proguardRelease
Warning: com.android.volley.error.VolleyErrorHelper$1: can't find superclass or interface com.google.gson.reflect.TypeToken
Warning: com.android.volley.error.VolleyErrorHelper: can't find referenced class com.google.gson.Gson
Warning: com.android.volley.error.VolleyErrorHelper: can't find referenced class com.google.gson.Gson
Warning: com.android.volley.error.VolleyErrorHelper: can't find referenced method 'java.lang.reflect.Type getType()' in program class com.android.volley.error.VolleyErrorHelper$1
Warning: com.android.volley.error.VolleyErrorHelper: can't find referenced class com.google.gson.Gson
Warning: com.android.volley.error.VolleyErrorHelper$1: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.android.volley.error.VolleyErrorHelper$1: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.android.volley.error.VolleyErrorHelper$1: can't find referenced class com.google.gson.reflect.TypeToken
Warning: com.android.volley.request.GsonRequest: can't find referenced class com.google.gson.Gson
Warning: com.android.volley.request.GsonRequest: can't find referenced class com.google.gson.Gson
Warning: com.android.volley.request.GsonRequest: can't find referenced class com.google.gson.Gson
Warning: com.android.volley.request.GsonRequest: can't find referenced class com.google.gson.JsonSyntaxException
Warning: com.android.volley.request.GsonRequest: can't find referenced class com.google.gson.JsonSyntaxException
Warning: com.android.volley.request.GsonRequest: can't find referenced class com.google.gson.Gson
Warning: com.android.volley.request.GsonRequest: can't find referenced class com.google.gson.JsonSyntaxException
Warning: com.squareup.okhttp.internal.huc.HttpsURLConnectionImpl: can't find referenced method 'long getContentLengthLong()' in program class com.squareup.okhttp.internal.huc.HttpURLConnectionImpl
Warning: com.squareup.okhttp.internal.huc.HttpsURLConnectionImpl: can't find referenced method 'long getHeaderFieldLong(java.lang.String,long)' in program class com.squareup.okhttp.internal.huc.HttpURLConnectionImpl
Warning: okio.DeflaterSink: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning: okio.Okio: can't find referenced class java.nio.file.Files
Warning: okio.Okio: can't find referenced class java.nio.file.Files
Warning: okio.Okio: can't find referenced class java.nio.file.Files
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning: there were 28 unresolved references to classes or interfaces.
You may need to add missing library jars or update their versions.
If your code works fine without the missing classes, you can suppress
the warnings with '-dontwarn' options.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
Warning: there were 3 unresolved references to program class members.
Your input classes appear to be inconsistent.
You may need to recompile the code.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedprogramclassmember)
Exception while processing task
java.io.IOException: Please correct the above warnings first.
at proguard.Initializer.execute(Initializer.java:473)
at proguard.ProGuard.initialize(ProGuard.java:233)
at proguard.ProGuard.execute(ProGuard.java:98)
at proguard.gradle.ProGuardTask.proguard(ProGuardTask.java:1074)
at com.android.build.gradle.tasks.AndroidProGuardTask.doMinification(AndroidProGuardTask.java:137)
at com.android.build.gradle.tasks.AndroidProGuardTask$1.run(AndroidProGuardTask.java:113)
at com.android.builder.tasks.Job.runTask(Job.java:48)
at com.android.build.gradle.tasks.SimpleWorkQueue$EmptyThreadContext.runTask(SimpleWorkQueue.java:41)
at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:227)
at java.lang.Thread.run(Thread.java:745)
:app:dexRelease UP-TO-DATE
:app:validateExternalOverrideSigning
:app:packageRelease
并且构建过程停止并显示此消息:
Error:Execution failed for task ':app:packageRelease'.
> Unable to compute hash of ...\app\build\intermediates\classes-proguard\release\classes.jar
经过几次尝试后,我找到了一种在“proguard-rules.pro”中使用此行删除警告的方法:
-dontwarn com.android.volley.**
-dontwarn com.squareup.okhttp.**
-dontwarn okio.**
但是构建过程仍然出错!有人有解决这个问题的方法吗?
谢谢!戴维德