检测是否该应用程序推出/从推送通知开 [英] Detect if the app was launched/opened from a push notification

问题描述

是否有可能知道，从一个推送通知，如果应用程序发起/开？

Is it possible to know if the app was launched/opened from a push notification?

我猜启动事件都可以在这里抓到：

I guess the launching event can be caught here:

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

    if (launchOptions != nil) {
         // Launched from push notification
         NSDictionary *notification = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];

    }
}

但是，我怎么能检测到它是从一个推送通知，当打开该应用程序是在后台？

However, how can I detect it was opened from a push notification when the app was on background?

推荐答案

请参阅此code：

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
    if ( application.applicationState == UIApplicationStateInactive || application.applicationState == UIApplicationStateBackground  )
    {
         //opened from a push notification when the app was on background
    }
}

同

-(void)application:(UIApplication *)application didReceiveLocalNotification (UILocalNotification *)notification

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