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iOS应用图标右上角的未读数无法清除
手机型号:iPhone 13 Pro iOS版本号:iOS 18.6.2 (22G100) 用户开启了应用的系统通知功能,在收到离线推送后应用右上角展示未读消息数。在APP启动或者从后台恢复的时候,应用会用如下方法清理应用桌面图标的未读数角标。但是在部分机型上,应用转为“后台模式”时仍然会出现一个未读角标,且每次都是一个固定值;如果直接kill进程就不会出现未读角标。请问如何能够【完全】清理消息未读数,确保不会在退后台的时候再次出现呢? [[UIApplication sharedApplication] setApplicationIconBadgeNumber:0]; [[UIApplication sharedApplication] cancelAllLocalNotifications]; if (@available(iOS 16.0, *)) { [[UNUserNotificationCenter currentNotificationCenter] setBadgeCount:0 withCompletionHandler:nil]; [[UNUserNotificationCenter currentNotificationCenter] removeAllPendingNotificationRequests]; [[UNUserNotificationCenter currentNotificationCenter] removeAllPendingNotificationRequests]; } UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init]; content.badge = @(-1); UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@"clearBadge" content:content trigger:nil]; [[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) { // Do nothing }];
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Jan ’26