WakefulBroadcastReceiver无法解析为一种类型

Question

我的项目显示错误消息WakefulBroadcastReceiver cannot be resolved to a type。我出于所有可能想到的原因抬起头来。我已设定android-support-library和google play services的路径。即使我的mapView可以正常工作（如果我在下面的代码中评论），这意味着google play service已正确添加到项目中。

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // Explicitly specify that GcmIntentService will handle the intent.
        ComponentName comp = new ComponentName(context.getPackageName(),
            GcmIntentService.class.getName());
        // Start the service, keeping the device awake while it is launching.
        startWakefulService(context, (intent.setComponent(comp)));
        setResultCode(Activity.RESULT_OK);
    }
}

知道为什么会出错吗？

Answer 1

确保您已将最新的Android支持程序包添加到项目中。例如，此示例项目有一个合适的示例，android- support-v4.jar并演示了的用法WakefulBroadcastReceiver。