如何在适用于 Android 和 iOS 的 Xamarin Cross-Plotform 应用程序中的应用程序图标上显示徽章计数 [英] How to Show Badge count on App icon in Xamarin Cross-Plotform Application for both Android and iOS

问题描述

我正在尝试在收到通知时在 iOS 应用程序中添加图标徽章.我有一个 PCL 项目，并且我已经从 Nuget 安装了 Xam.Plugin.Badge ，所以在我的 AppDelegate.cs 文件中我添加了以下内容iOS 代码行

I am trying to add the icon badge in iOS application when a notification is received. I have a PCL Project, And i have installed Xam.Plugin.Badge from Nuget , so in my AppDelegate.cs file i have added following line of code for iOS

CrossBadge.Current.SetBadge(number);

但在 Mac 模拟器中运行应用程序时，应用程序图标上未显示徽章.任何人都可以纠正我做错的地方.

But Badge is not showing on App icon when running the app in Mac simulator. Can any one correct me where i am doing wrong please.

最好的问候，斯里尼瓦斯.

Best regards, Srinivas.

推荐答案

根据官方文档 ApplicationIconBadgeNumber，在 iOS8+ 上，我们需要注册用户通知才能设置应用程序图标徽章编号:

According to the official documentation ApplicationIconBadgeNumber, On iOS8+ we need to register for user notifications to be able to set the application icon badge number:

//Register this in the Appdelegate
UIUserNotificationSettings settings = UIUserNotificationSettings.GetSettingsForTypes(UIUserNotificationType.Badge, null);
UIApplication.SharedApplication.RegisterUserNotificationSettings(settings);

然后您可以使用 CrossBadge.Current.SetBadge(number);

另外如果你想在原生iOS平台上设置徽章，你可以直接尝试UIApplication.SharedApplication.ApplicationIconBadgeNumber = number;.

Moreover if you want to set the badge on the native iOS platform, you can try UIApplication.SharedApplication.ApplicationIconBadgeNumber = number; directly.

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