当app在前台时，避免显示通知警报

Question

嗨我用这个UNUserNotificationCenterDelegate来避免在应用程序处于这个功能的前台时发出警报通知

-(void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler  API_AVAILABLE(ios(10.0)){
    completionHandler(UNNotificationPresentationOptionAlert);
}

但是我收到了两个选项Alert＆amp;旗帜 如何在应用程序处于前台时删除警报？

Answer 1

你必须在willPresent方法中应用条件，检查应用程序的状态，如果State是UIApplecationStateForeGround则不执行任何操作，否则它们将遵循UNNotificationPresentationOptionAlert。

Answer 2

我发现如何解决一个信号init的选项，以避免显示警告

[OneSignal initWithLaunchOptions:launchOptions appId:@"YOURE_KEY" handleNotificationReceived:nil handleNotificationAction:nil
                            settings:@{kOSSettingsKeyInAppAlerts:@NO}];

并且要显示为横幅，您必须添加此代码

-(void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler  API_AVAILABLE(ios(10.0)){
    completionHandler(UNNotificationPresentationOptionAlert);
}