WearableListView ClassNotFoundException 支持 v4 ArrayMap答案

【问题标题】：WearableListView ClassNotFoundException Support v4 ArrayMapWearableListView ClassNotFoundException 支持 v4 ArrayMap
【发布时间】：2015-04-18 23:30:54
【问题描述】：

好的，这很有趣：我正在使用 Android Studio 1.1.0，我有一个 Android 应用程序和一个相关的 Android Wear 应用程序，我正在尝试在智能手表设备上进行测试。我已将我在 Android 应用程序中使用的类文件放入 Android 库模块中，然后将其作为依赖项添加到我的 Android Wear 应用程序中。该应用程序构建并部署到智能手表上，但是当它运行时，我得到以下异常和堆栈跟踪。任何建议，将不胜感激。谢谢！

04-17 21:55:45.764    7759-7759/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: com.myapp.wear, PID: 7759
    android.view.InflateException: Binary XML file line #12: Error inflating class android.support.wearable.view.WearableListView
            at android.view.LayoutInflater.createView(LayoutInflater.java:633)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
            at android.support.wearable.view.WatchViewStub.inflate(WatchViewStub.java:179)
            at android.support.wearable.view.WatchViewStub.onApplyWindowInsets(WatchViewStub.java:148)
            at android.view.View.dispatchApplyWindowInsets(View.java:6514)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5782)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5786)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5786)
            at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchApplyWindowInsets(PhoneWindow.java:2333)
            at android.view.ViewRootImpl.dispatchApplyInsets(ViewRootImpl.java:1205)
            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1423)
            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1054)
            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5779)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
            at android.view.Choreographer.doCallbacks(Choreographer.java:580)
            at android.view.Choreographer.doFrame(Choreographer.java:550)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
     Caused by: java.lang.reflect.InvocationTargetException
            at java.lang.reflect.Constructor.newInstance(Native Method)
            at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
            at android.view.LayoutInflater.createView(LayoutInflater.java:607)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
            at android.support.wearable.view.WatchViewStub.inflate(WatchViewStub.java:179)
            at android.support.wearable.view.WatchViewStub.onApplyWindowInsets(WatchViewStub.java:148)
            at android.view.View.dispatchApplyWindowInsets(View.java:6514)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5782)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5786)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5786)
            at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchApplyWindowInsets(PhoneWindow.java:2333)
            at android.view.ViewRootImpl.dispatchApplyInsets(ViewRootImpl.java:1205)
            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1423)
            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1054)
            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5779)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
            at android.view.Choreographer.doCallbacks(Choreographer.java:580)
            at android.view.Choreographer.doFrame(Choreographer.java:550)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
     Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/util/ArrayMap;
            at android.support.v7.widget.RecyclerView$State.<init>(RecyclerView.java:7461)
            at android.support.v7.widget.RecyclerView.<init>(RecyclerView.java:233)
            at android.support.wearable.view.WearableListView.<init>(WearableListView.java:151)
            at android.support.wearable.view.WearableListView.<init>(WearableListView.java:147)
            at java.lang.reflect.Constructor.newInstance(Native Method)
            at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
            at android.view.LayoutInflater.createView(LayoutInflater.java:607)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
            at android.support.wearable.view.WatchViewStub.inflate(WatchViewStub.java:179)
            at android.support.wearable.view.WatchViewStub.onApplyWindowInsets(WatchViewStub.java:148)
            at android.view.View.dispatchApplyWindowInsets(View.java:6514)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5782)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5786)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5786)
            at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchApplyWindowInsets(PhoneWindow.java:2333)
            at android.view.ViewRootImpl.dispatchApplyInsets(ViewRootImpl.java:1205)
            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1423)
            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1054)
            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5779)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
            at android.view.Choreographer.doCallbacks(Choreographer.java:580)
            at android.view.Choreographer.doFrame(Choreographer.java:550)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.util.ArrayMap" on path: DexPathList[[zip file "/data/app/com.myapp.wear-1/base.apk"],nativeLibraryDirectories=[/data/app/com.myapp.wear-1/lib/arm, /vendor/lib, /system/lib]]
            at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
            at android.support.v7.widget.RecyclerView$State.<init>(RecyclerView.java:7461)
            at android.support.v7.widget.RecyclerView.<init>(RecyclerView.java:233)
            at android.support.wearable.view.WearableListView.<init>(WearableListView.java:151)
            at android.support.wearable.view.WearableListView.<init>(WearableListView.java:147)
            at java.lang.reflect.Constructor.newInstance(Native Method)
            at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
            at android.view.LayoutInflater.createView(LayoutInflater.java:607)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
            at android.support.wearable.view.WatchViewStub.inflate(WatchViewStub.java:179)
            at android.support.wearable.view.WatchViewStub.onApplyWindowInsets(WatchViewStub.java:148)
            at android.view.View.dispatchApplyWindowInsets(View.java:6514)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5782)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5786)
            at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:5786)
            at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchApplyWindowInsets(PhoneWindow.java:2333)
            at android.view.ViewRootImpl.dispatchApplyInsets(ViewRootImpl.java:1205)
            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1423)
            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1054)
            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5779)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
            at android.view.Choreographer.doCallbacks(Choreographer.java:580)
            at android.view.Choreographer.doFrame(Choreographer.java:550)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
    Suppressed: java.lang.ClassNotFoundException: android.support.v4.util.ArrayMap
            at java.lang.Class.classForName(Native Method)
            at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
            at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
            ... 36 more
     Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

这是 gradle 配置和模块的视觉效果：

【问题讨论】：

“放置在我的 Android 应用程序中使用的类文件”是什么意思 - 是否有理由不将可穿戴设备支持库作为依赖项添加到 build.gradle 文件中？
我无法在可穿戴应用中使用主应用中的命名空间和后续类，因为它是一个单独的模块，并且该模块不是库。所以我将它们复制到一个库中，以便能够在穿戴应用程序中使用它们。您是说穿戴应用程序不应该在 Android Studio 中设置为单独的模块吗？谢谢！
我添加了几个屏幕截图以增加清晰度，以防我解释得不好。

标签： java android classnotfoundexception wear-os

【解决方案1】：

我在您的 logcat 跟踪中看到了这个 java.lang.ClassNotFoundException: android.support.v4.util.ArrayMap。而且我认为您的v4 和v7 的版本可能会导致此错误。您的v4 和v7 支持库是最新的吗？顺便说一句，ArrayMap 只能用于Android API 21+

【讨论】：

好收获。我的菜鸟错误。谢谢！

【解决方案2】：

在我的情况下，我通过删除 android-support-v4.jar 解决了这个问题，因为它很旧并且实际上没有 ArrayMap.class 我把那个来自我的 lib 文件夹中的 \extras\android\support\v4 然后将它添加到 Java 构建路径中，它终于工作了。希望对你有帮助:)

【讨论】：

【解决方案3】：

我的情况是升级后的

    compile 'com.google.android.gms:play-services:8.1.0'

到

    compile 'com.google.android.gms:play-services:8.3.0'

回到 8.1.0 为我解决了这个问题

【讨论】：

这不是一个好的解决方案。您应该将支持库升级到包含ArrayMap 的版本，而不是降级 Google Play 服务库。
我的回答是具体关于什么对我有用，从来没有提到它是最优化的。此外，由于我不需要最新的功能，因此降级完全没有影响

【解决方案4】：

你可以找到解决这个错误here的方法。

错误很清楚（基本上ArrayMap不见了）：

java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/util/ArrayMap;

发生这种情况是因为支持库版本旧，而另一个库（可能是 Google Play 服务）在其上找不到 ArrayMap。

解决方案是将支持库升级到包含ArrayMap的新版本。这就是我所做的，它奏效了。

另外，根据linked solution你还应该：

确保您的 compileSdkVersion 与依赖

【讨论】：