Determine on iPhone if user has enabled push notifications
我正在寻找一种方法来确定用户是否通过设置启用或禁用了我的应用程序的推送通知。
Call enabledRemoteNotificationsTypes and check the mask.
For example:
UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
if (types == UIRemoteNotificationTypeNone)
// blah blah blah
iOS8 and above:
[[UIApplication sharedApplication] isRegisteredForRemoteNotifications]
I can't comment (not enough reputation), but re: quantumpotato's issue:
Where types is given by
UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
one can use
if (types & UIRemoteNotificationTypeAlert)
instead of
if (types == UIRemoteNotificationTypeNone)
will allow you to check only whether notifications are enabled (and don't worry about sounds, badges, notification center, etc.). The first line of code ( types & UIRemoteNotificationTypeAlert ) will return YES if "Alert Style" is set to "Banners" or "Alerts", and NO if "Alert Style" is set to "None", irrespective of other settings.
In the latest version of iOS this method is now deprecated. To support both iOS 7 and iOS 8 use:
UIApplication *application = [UIApplication sharedApplication];
BOOL enabled;
// Try to use the newer isRegisteredForRemoteNotifications otherwise use the enabledRemoteNotificationTypes.
if ([application respondsToSelector:@selector(isRegisteredForRemoteNotifications)])
{
enabled = [application isRegisteredForRemoteNotifications];
}
else
{
UIRemoteNotificationType types = [application enabledRemoteNotificationTypes];
enabled = types & UIRemoteNotificationTypeAlert;
}
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