objective-c - UILocalNotification

Question

我有 UILocalNotification，它有两个按钮，一个是取消按钮，一个是查看按钮，当应用程序在后台时出现警报，我单击查看按钮，它在应用程序上打开，但我有一个方法调用，如果启动选项有一个不工作的 UILocalNotification 对象

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
 //notifcation key
    UILocalNotification *notifcation = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];


        if (notifcation) {
           NSLog(@"working");
       }
}

Answer 1

当您的应用程序在后台时，didFinishLaunchingWithOptions 将不会在这种情况下调用使用 -

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

此处 userInfo 与 UIApplicationLaunchOptionsLocalNotificationKey 相同。