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在运行 Android 2.3.3 及更早版本的 Android 小部件时遇到问题。

当我在屏幕上安装我的小部件时，会打印此错误：

11-03 10:26:31.127: E/AndroidRuntime(404): FATAL EXCEPTION: main
11-03 10:26:31.127: E/AndroidRuntime(404): java.lang.NoClassDefFoundError: com.app.myapp.StackWidgetService
11-03 10:26:31.127: E/AndroidRuntime(404):  at com.app.myapp.StackWidgetProvider.onUpdate(StackWidgetProvider.java:229)
11-03 10:26:31.127: E/AndroidRuntime(404):  at android.appwidget.AppWidgetProvider.onReceive(AppWidgetProvider.java:61)
11-03 10:26:31.127: E/AndroidRuntime(404):  at com.app.mobideals.StackWidgetProvider.onReceive(StackWidgetProvider.java:216)
11-03 10:26:31.127: E/AndroidRuntime(404):  at android.app.ActivityThread.handleReceiver(ActivityThread.java:1794)
11-03 10:26:31.127: E/AndroidRuntime(404):  at android.app.ActivityThread.access$2400(ActivityThread.java:117)
11-03 10:26:31.127: E/AndroidRuntime(404):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:981)
11-03 10:26:31.127: E/AndroidRuntime(404):  at android.os.Handler.dispatchMessage(Handler.java:99)
11-03 10:26:31.127: E/AndroidRuntime(404):  at android.os.Looper.loop(Looper.java:123)
11-03 10:26:31.127: E/AndroidRuntime(404):  at android.app.ActivityThread.main(ActivityThread.java:3683)
11-03 10:26:31.127: E/AndroidRuntime(404):  at java.lang.reflect.Method.invokeNative(Native Method)
11-03 10:26:31.127: E/AndroidRuntime(404):  at java.lang.reflect.Method.invoke(Method.java:507)
11-03 10:26:31.127: E/AndroidRuntime(404):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
11-03 10:26:31.127: E/AndroidRuntime(404):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
11-03 10:26:31.127: E/AndroidRuntime(404):  at dalvik.system.NativeStart.main(Native Method)

问题是由于编译器没有到达在 StackWidgetProvider 类的 onUpdate 方法中的这一行执行到 StackWidgetService 类的链接：

public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {

        // update each of the widgets with the remote adapter
        for (int i = 0; i < appWidgetIds.length; ++i) {

            // Here we setup the intent which points to the StackViewService which will
            // provide the views for this collection.
            Intent intent = new Intent(context, StackWidgetService.class);
            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);

该小部件适用于其他版本的 Android，如 3.0、4.0 等...

请帮我 ：）

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1 回答 1

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如果您已将 eclipse 插件更新到 ADT 17，您的解决方案可能在这里：Android java.lang.NoClassDefFoundError

也看看这里：http ://android.foxykeep.com/dev/how-to-fix-the-classdefnotfounderror-with-adt-17

于 2012-11-03T11:54:45.270 回答