iOS：有没有办法知道用户是否选择了退出通知？

Question

与CLAuthorizationStatus我可以确切地知道用户是否拒绝了应用程序权限（kCLAuthorizationStatusDenied）或状态未定（kCLAuthorizationStatusNotDetermined）。

...那么有没有类似的通知服务？我似乎无法找到任何内容，似乎无法区分拒绝权限的用户和尚未显示弹出权限的用户。

Answer 1

UIUserNotificationSettings *currentSettings = [[UIApplication sharedApplication] currentUserNotificationSettings]; 

此代码将给出与通知相关的最新设置。

Answer 2

if ([[[UIDevice currentDevice]systemVersion]floatValue] >= 8.0) { 
    UIUserNotificationSettings *current = [[UIApplication sharedApplication]currentUserNotificationSettings]; 
    if (current.types != UIUserNotificationTypeNone){ 
     NSLog(@"Notifications Enabled ios 8"); 
    } else { 
     NSLog(@"Notifications not Enabled ios 8"); 
    } 

} else { 
    UIRemoteNotificationType types = [[UIApplication sharedApplication]enabledRemoteNotificationTypes]; 
    if (types != UIRemoteNotificationTypeNone) 
    { 
     NSLog(@"Notifications Enabled"); 
    } 
    else 
    { 
     NSLog(@"Notifications not Enabled"); 
    } 
}