注册后更新Parse deviceToken

Question

目前，我坐着很多空的deviceToken字段。 我发现这是因为在创建安装对象之前添加组存在问题-它会阻止后续的创建工作。

我现在想做的是再次获取该deviceToken并在Parse中对其进行更新，但问题是， didRegisterForRemoteNotificationsWithDeviceToken在第一次之后就再也不会运行了……

以任何方式在对didRegisterForRemoteNotificationsWithDeviceToken的初始调用之后获取设备令牌？

Answer 1

这确实适用于iOS 8：

if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
    UIUserNotificationSettings* notificationSettings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil];
    [[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
} else {
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes: (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
}

Answer 2

didRegisterForRemoteNotificationsWithDeviceToken可以重复调用。 只需使用didFinishLaunchingWithOptions方法在AppDelegate.m调用推送注册代码。

这是我使用的：

//Check for iOS 7 vs 8
if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
    UIUserNotificationSettings* notificationSettings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil];
    [[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
} else {
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes: (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
}

就是这样-如果您每次都调用它，那么每次加载时，您都会获得一个对didRegisterForRemoteNotificationsWithDeviceToken的委托回调。