protected void startApp()
{
 pusher.RegisterAppleService(new ApplePushChannelSettings(File.ReadAllBytes(CertificatePath), CertificatePassword));
 pusher.OnDeviceSubscriptionChanged += pusher_OnDeviceSubscriptionChanged;
 pusher.OnDeviceSubscriptionExpired += pusher_OnDeviceSubscriptionExpired;
 pusher.OnNotificationSent += pusher_OnNotificationSent;
 pusher.OnNotificationFailed += pusher_OnNotificationFailed;

}
static void pusher_OnNotificationFailed(object sender, INotification notification, Exception error)
{
    var n = (AppleNotification)notification;
    //error.Message ...获取推送出错的信息
    Log.Error("推送出错的信息", error);
}

static void pusher_OnNotificationSent(object sender, INotification notification)
{
    //消息推送成功后
    var n = (AppleNotification)notification;
    //n.Payload.Alert.Body  获取推送的消息内容...
    Log.Error("推送内容"+n.Payload.Alert.Body);
}

static void pusher_OnDeviceSubscriptionExpired(object sender, string expiredSubscriptionId, DateTime expirationDateUtc, INotification notification)
{
    // 从数据库删除过期的expiredSubscriptionId
}

static void pusher_OnDeviceSubscriptionChanged(object sender, string oldSubscriptionId, string newSubscriptionId, INotification notification)
{
    // 把数据库中的oldSubscriptionId更新为newSubscriptionId
}

pusher.QueueNotification(new AppleNotification().ForDeviceToken(TokenID)  .WithAlert("推送的内容").WithBadge(1).WithSound("default"));// 从数据库或者其他等地方获取设备的TokenID，每个iphone一个TokenID