iphone - 收到推送通知时如何判断我的 iPhone 应用程序是否正在运行？

Question

我正在向我的 iPhone 应用程序发送推送通知，并且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一点？

Answer 1

Here's the more appropriate way of handling active/inactive state of the app.

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {   
        // check for the app state
        UIApplicationState state = [application applicationState];

        if (state == UIApplicationStateActive) {
            //the app is in the foreground, so here you do your stuff since the OS does not do it for you
            //navigate the "aps" dictionary looking for "loc-args" and "loc-key", for example, or your personal payload)
        }

    application.applicationIconBadgeNumber = 0;
}

didReceiveRemoteNotification: 在应用程序运行时调用，是的，但是当它挂起时，iOS 会负责放置徽章等。如果应用程序在前台，操作系统不执行任何操作，只是调用您的 didReceiveRemoteNotification:。