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当应用程序在后台时显示消息框

[英]Show Message Box when application is in background

I need to show a Message box for user with two buttons(open application, cancel) when an application is in background. 当应用程序在后台时,我需要为用户显示一个带有两个按钮的消息框(打开应用程序,取消)。 How can I realise it (should it be a background task) ? 如何实现(应该是后台任务)?

You can't show custom message box from background. 您无法从后台显示自定义消息框。

As a workaround you can show Toast Notification from Background Agent . 作为解决方法,您可以显示Background Agent Toast Notification Look at ShellToast , it's made for this purpose. 看一下ShellToast ,它就是为此目的而制作的。 When toast appears, users can tap it to open application as you need. 当烤面包出现时,用户可以根据需要点击它以打开应用程序。

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