收到推送通知时，如何判断我的 iPhone 应用程序是否正在运行? [英] How do I tell if my iPhone app is running when a Push Notification is received?

问题描述

我正在向我的 iPhone 应用程序发送推送通知，我希望根据应用程序是否已启动来执行一组不同的指令.我是 iPhone 开发的新手，虽然我怀疑 UIApplication 或我项目的 AppDelegate 类有解决方案，但我还没有找到好的答案.有没有简单的方法来检查这个?

I am sending Push Notifications to my iPhone app, and I'd like a different set of instructions to execute depending on whether the app is already launched or not. I'm new to iPhone development, and while I suspect UIApplication or my project's AppDelegate class has the solution, I haven't found a good answer. Is there an easy way to check for this?

推荐答案

UIApplication委托有方法

The UIApplication delegate has the method

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo

您需要实施.这会在应用程序运行时收到通知.

which you need to implement. This receives the notification when the app is running.

如果您的应用程序当前未运行并且收到通知，则可以使用

If your app is not currently running and a notification is received then your app can be launched with

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

包含在 launchOptions 字典中的通知详细信息.如果字典为 nil，则用户照常点击应用程序图标.

with the notification details held in the launchOptions dictionary. if the dictionary is nil then the user tapped the application icon as normal.

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