要修复本地通知无效的问题,可以按照以下步骤进行操作:
import UserNotifications
UNUserNotificationCenter.current().getNotificationSettings { settings in
if settings.authorizationStatus == .authorized {
// 已经获得了权限,可以发送本地通知
} else {
// 请求权限
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { granted, error in
// 根据授权结果来处理
}
}
}
let content = UNMutableNotificationContent()
content.title = "通知标题"
content.body = "通知正文"
content.sound = UNNotificationSound.default
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 60, repeats: false)
let request = UNNotificationRequest(identifier: "NotificationIdentifier", content: content, trigger: trigger)
UNUserNotificationCenter.current().add(request) { error in
// 添加通知请求后的处理
}
检查通知标识符:确保每个通知的标识符是唯一的。如果你发送了重复的标识符,后续的通知将会覆盖之前的通知。
检查通知委托:如果你使用了通知委托来处理通知的交互和事件响应,确保委托对象已经正确配置并实现了相关的方法。
class NotificationDelegate: NSObject, UNUserNotificationCenterDelegate {
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
// 处理应用在前台时收到的通知,可以选择是否展示通知
completionHandler([.alert, .sound, .badge])
}
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
// 处理用户对通知的响应,例如点击通知后的跳转操作
completionHandler()
}
}
let notificationDelegate = NotificationDelegate()
UNUserNotificationCenter.current().delegate = notificationDelegate
通过以上步骤,你可以修复本地通知无效的问题。