下载应用程序时的本地通知

Posted 2023-03-15

【中文标题】下载应用程序时的本地通知

【英文标题】：Local Notification When App is Downloaded

【发布时间】：2013-06-27 13:37:35

【问题描述】：

我希望在应用程序从应用商店下载并打开后立即显示本地通知。谢谢。

【问题讨论】：

您是否也希望在应用程序升级到新版本后首次启动时收到此通知？

不，仅适用于我当前的更新。

【参考方案1】：

您可以在应用代理的 didFinishLaunchingWithOptions 中执行此操作。在这个方法中你需要做以下事情：

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

    ....
    //Get the version number of the application using this technique: http://***.com/questions/458632/how-can-my-iphone-app-detect-its-own-version-number
    NSString version = [self appVersion];
    //Because you only want to display the notification on first launch so have a flag in user defaults to track that. Also note that you need to include this in your registerDefaults and set to NO
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; 
    BOOL alreadyDisplayedNotification = [defaults boolForKey:@"alreadyDisplayedNotificationOnStartForVersion"];
    if ([version isEqualToString:@"VersionForWhichYouWantNotification"] && !alreadyDisplayedNotification) 
        //Display Notification...

        // Set the flag in user default to track that notification has been displayed
        [defaults setBool:YES forKey:@"alreadyDisplayedNotificationOnStartForVersion"]; 
    
    .....