我有一个适用于 Android 设备的 multidex 项目。我使用 Flexjson。我已经用 flexjson 3.3 和 2.x 对其进行了测试。
它在 android 5.x 中运行良好，但在 Android 4.4.4 中崩溃。
看起来 Dex 支持库不适用于较旧的 Android 版本，但我无法确定。
这是我的堆栈跟踪：
06-29 03:50:44.763 11884-11884/com.pigdroid.gameboard E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.pigdroid.gameboard, PID: 11884
flexjson.JSONException: [ layers.values ]: Could not load com.pigdroid.game.board.tile.model.IntTileLayer
at flexjson.ObjectBinder.findClassInMap(ObjectBinder.java:250)
at flexjson.ObjectBinder.findClassName(ObjectBinder.java:213)
at flexjson.ObjectBinder.bind(ObjectBinder.java:92)
at flexjson.ObjectBinder.bindIntoCollection(ObjectBinder.java:110)
at flexjson.factories.ListObjectFactory.instantiate(ListObjectFactory.java:13)
at flexjson.ObjectBinder.bind(ObjectBinder.java:95)
at flexjson.ObjectBinder.bindIntoObject(ObjectBinder.java:149)
at flexjson.factories.ExistingObjectFactory.instantiate(ExistingObjectFactory.java:25)
at flexjson.ObjectBinder.bind(ObjectBinder.java:95)
at flexjson.ObjectBinder.bind(ObjectBinder.java:74)
at flexjson.JSONDeserializer.deserialize(JSONDeserializer.java:241)
at flexjson.JSONDeserializer.deserializeInto(JSONDeserializer.java:301)
at com.pigdroid.game.model.memento.UndoableObject.from(UndoableObject.java:35)
at com.pigdroid.game.controller.GameController.loadModelFromSerialized(GameController.java:108)
at com.pigdroid.gameboard.view.detail.game.tile.TileBoardGameFragmentController.setGame(TileBoardGameFragmentController.java:692)
at com.pigdroid.gameboard.view.detail.game.GameDetailFragment.onKickOff(GameDetailFragment.java:168)
at com.pigdroid.gameboard.view.ServiceFragment.kickOffIf(ServiceFragment.java:71)
at com.pigdroid.gameboard.view.detail.game.GameDetailFragment.kickOffIf(GameDetailFragment.java:159)
at com.pigdroid.gameboard.view.ServiceFragment$3.bound(ServiceFragment.java:52)
at com.pigdroid.gameboard.view.ServiceFragment$3.bound(ServiceFragment.java:48)
at com.pigdroid.android.hateaidl.HateAIDLConnection$3.onServiceConnected(HateAIDLConnection.java:118)
at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1101)
at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1118)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
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$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.pigdroid.game.board.tile.model.IntTileLayer" on path: DexPathList[[directory "."],nativeLibraryDirectories=[/system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at android.app.LoadedApk$WarningContextClassLoader.loadClass(LoadedApk.java:430)
at flexjson.ObjectBinder.findClassInMap(ObjectBinder.java:243)
at flexjson.ObjectBinder.findClassName(ObjectBinder.java:213)
at flexjson.ObjectBinder.bind(ObjectBinder.java:92)
at flexjson.ObjectBinder.bindIntoCollection(ObjectBinder.java:110)
at flexjson.factories.ListObjectFactory.instantiate(ListObjectFactory.java:13)
at flexjson.ObjectBinder.bind(ObjectBinder.java:95)
at flexjson.ObjectBinder.bindIntoObject(ObjectBinder.java:149)
at flexjson.factories.ExistingObjectFactory.instantiate(ExistingObjectFactory.java:25)
at flexjson.ObjectBinder.bind(ObjectBinder.java:95)
at flexjson.ObjectBinder.bind(ObjectBinder.java:74)
at flexjson.JSONDeserializer.deserialize(JSONDeserializer.java:241)
at flexjson.JSONDeserializer.deserializeInto(JSONDeserializer.java:301)
at com.pigdroid.game.model.memento.UndoableObject.from(UndoableObject.java:35)
at com.pigdroid.game.controller.GameController.loadModelFromSerialized(GameController.java:108)
at com.pigdroid.gameboard.view.detail.game.tile.TileBoardGameFragmentController.setGame(TileBoardGameFragmentController.java:692)
at com.pigdroid.gameboard.view.detail.game.GameDetailFragment.onKickOff(GameDetailFragment.java:168)
at com.pigdroid.gameboard.view.ServiceFragment.kickOffIf(ServiceFragment.java:71)
at com.pigdroid.gameboard.view.detail.game.GameDetailFragment.kickOffIf(GameDetailFragment.java:159)
at com.pigdroid.gameboard.view.ServiceFragment$3.bound(ServiceFragment.java:52)
at com.pigdroid.gameboard.view.ServiceFragment$3.bound(ServiceFragment.java:48)
at com.pigdroid.android.hateaidl.HateAIDLConnection$3.onServiceConnected(HateAIDLConnection.java:118)
at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1101)
at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1118)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
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)
编辑：我已经向 Android 开发团队提出了一个问题，他们已经注意到这个错误是一个特性，即使它在后面的版本中运行得很好。如果有人觉得这很烦人，请尝试为重新开放投票：https ://code.google.com/p/android/issues/detail?id=178607