首先需要检查应用的通知权限是否开启,在发送本地通知前需要进行权限申请。同时,需要确认通知的内容和标识符是否正确配置。若上述检查均已通过,则可能是通知样式配置错误导致。可尝试修改通知样式为现有样式,或自定义通知样式来解决该问题。
代码示例:
// Objective-C UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter]; [center requestAuthorizationWithOptions:(UNAuthorizationOptionAlert + UNAuthorizationOptionSound) completionHandler:^(BOOL granted, NSError * _Nullable error) { // 对权限申请结果进行处理 }];
// Swift let center = UNUserNotificationCenter.current() center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in // 对权限申请结果进行处理 }
// Objective-C UNMutableNotificationContent *content = [UNMutableNotificationContent new]; content.title = @"Notification Title"; content.body = @"Notification Body"; content.sound = [UNNotificationSound defaultSound]; NSString *identifier = @"NotificationIdentifier"; UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:identifier content:content trigger:nil]; [[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) { // 对通知发送结果进行处理 }];
// Swift let content = UNMutableNotificationContent() content.title = "Notification Title" content.body = "Notification Body" content.sound = UNNotificationSound.default let identifier = "NotificationIdentifier" let request = UNNotificationRequest(identifier: identifier, content: content, trigger: nil) UNUserNotificationCenter.current().add(request) { (error) in // 对通知发送结果进行处理 }
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