当app在前台时,横幅iO推送通知

Question

当应用程序在前台运行时,是否可以触发横幅推送通知的显示,就像它在后台一样？

我正在使用React-Native版本41.2和react-native-push-notification 2.2.1

我在搜索中注意到,通过在AppDelegate中添加以下内容,iOs 10应该是可能的:

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

但是,这似乎没有被击中,而是正在点击didReceiveLocalNotification方法,如下所示:

// Required for the localNotification event.
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
[RCTPushNotificationManager didReceiveLocalNotification:notification];
}

React-Native是否可以访问userNotificationCenter？或者是否可以使用其他方法获得类似的结果？

谢谢.

Answer 1

以下是我设法让这个工作的方法.

在该AppDelegate.h文件中,您需要导入UserNotifications并设置UNUserNotificationCenterDelegate,如下所示:

#import <UIKit/UIKit.h>
#import <UserNotifications/UserNotifications.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate, UNUserNotificationCenterDelegate>

然后在AppDelegate.m文件中,您需要[[UNUserNotificationCenter currentNotificationCenter] setDelegate:self];在didFinishLaunchingWithOptions方法中添加内容.

然后你必须删除didReceiveLocalNotification和didReceiveRemoteNotification,因为它们似乎优先于userNotificationCenter.

然后添加userNotificationCenter处理程序,如下所示.

- (void)userNotificationCenter:(UNUserNotificationCenter* )center willPresentNotification:(UNNotification* )notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler {

    completionHandler(UNNotificationPresentationOptionAlert);

  }

希望这能帮助其他一些反应原生的开发人员像我一样不熟悉iOs开发.