如何查询UIUserNotificationSettings类型

Question

我正在尝试实施application:didRegisterUserNotificationSettings: App Delegate方法，以尝试确定是否允许我向iOS 8中的用户发送本地通知。以下是我尝试的方法实现，但这显然是不正确的方式。

- (void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings
{

    if (notificationSettings.types /*How do i check which types are contained */) {

        NSLog(@"Allowed");

    } else {

        NSLog(@"Not Allowed");
    }

}

Answer 1

你去吧

if (notificationSettings.types == UIUserNotificationTypeNone) {
      NSlog(@"Permission not Granted by user");
}
else{
      NSlog(@"Permission Granted");
}

询问特定设置：

BOOL allowsSound = (notifSettings.types & UIUserNotificationTypeSound) != 0;