INotificationManager的兑现

INotificationManager的实现
INotificationManager

interface INotificationManager
{
    void enqueueNotification(String pkg, int id, in Notification notification, inout int[] idReceived);
    void cancelNotification(String pkg, int id);
    void cancelAllNotifications(String pkg);

    void enqueueToast(String pkg, ITransientNotification callback, int duration);
    void cancelToast(String pkg, ITransientNotification callback);
}

实现类是:com.android.server.NotificationManagerService