如何重置目标c中的通知徽章编号？

Question

在打开上一个通知后，我无法重置下一个通知的通知徽章编号。

Answer 1

将此代码写在

-(void)applicationWillEnterForeground:(UIApplication *)application {

    [UIApplication sharedApplication].applicationIconBadgeNumber = 0;
 }

Answer 2

您可以按照以下方式从应用程序本身设置徽章编号：

[UIApplication sharedApplication].applicationIconBadgeNumber = 0;

通过将值设置为0，您将重置徽章编号

要通过推送更新徽章编号，您需要在有效负载中包含以下内容：

"badge" : 0

Answer 3

在通话前注册通知

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

[[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings];

[UIApplication sharedApplication].applicationIconBadgeNumber = 0;