wear-os – Android穿样本代码异常

我建立了示例代码并将其安装在我的Nexus 4上.
我使用 Eclipse并导入WearableNotificationsSample,以及 AndroidWearPreview的ElizaChat示例代码.
它失败了.为什么？

03-20 14:34:34.418: E/AndroidRuntime(9989): Process: com.example.android.preview.support.wearable.notifications, PID: 9989
03-20 14:34:34.418: E/AndroidRuntime(9989): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.android.preview.support.wearable.notifications/com.example.android.preview.support.wearable.notifications.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.android.preview.support.wearable.notifications.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.android.preview.support.wearable.notifications-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.android.preview.support.wearable.notifications-2, /vendor/lib, /system/lib]]
03-20 14:34:34.418: E/AndroidRuntime(9989):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2121)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at android.app.ActivityThread.access$800(ActivityThread.java:135)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at android.os.Handler.dispatchMessage(Handler.java:102)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at android.os.Looper.loop(Looper.java:136)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at android.app.ActivityThread.main(ActivityThread.java:5017)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at java.lang.reflect.Method.invokeNative(Native Method)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at java.lang.reflect.Method.invoke(Method.java:515)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at dalvik.system.NativeStart.main(Native Method)
03-20 14:34:34.418: E/AndroidRuntime(9989): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.android.preview.support.wearable.notifications.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.android.preview.support.wearable.notifications-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.android.preview.support.wearable.notifications-2, /vendor/lib, /system/lib]]
03-20 14:34:34.418: E/AndroidRuntime(9989):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
03-20 14:34:34.418: E/AndroidRuntime(9989):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2112)

我注意到源代码在java文件夹中.要在eclipse上运行它,修复是右键单击java文件夹并选择Build Path – >用作源文件夹

当然还要添加支持和android wearable-preview库