ios - 在 ios 9 中设置应用角标(Badge)编号

Question

我用过

[UIApplication sharedApplication].applicationIconBadgeNumber = 5;

用于设置应用角标(Badge)编号。它不能单独在 ios 9 中工作。

谁能告诉我为什么？

我试过了，

[[UIApplication sharedApplication] setApplicationIconBadgeNumber:5];

Answer 1

您好，您需要像这样注册 UIUserNotificationSettings

UIUserNotificationSettings* notificationSettings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil];

[[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings];

[UIApplication sharedApplication].applicationIconBadgeNumber = 1;