是否可以检查用户何时下载我的ios应用程序？ [英] Is it possible to check when user downloaded my ios app?

问题描述

是否可以检查用户何时下载了我的iOs应用程序，如果可以，是否可以通过以下方式制作if语句：

Is it possible to check when the user downloaded my iOs app, and if so, is it possible to make a if statement out of it like:

  if(downloadDate>1march) {

        }

<抱歉，如果您认为这个问题很糟糕，那么任何代码都会非常受欢迎：D

sorry if you think the question is bad... any code would be greately appreciated though :D

也应该提到我的应用已经在AppStore上了六个月......

should also probably mention that my app has been on the AppStore for six months...

推荐答案

我不确定是否有办法自动检查下载日期。

I'm not sure if there's a way to automatically check a download date.

但您当然可以设置应用程序首次启动的日期。在您的app delegate中的appDidFinishLaunching方法中：

But you can certainly set a date for when the app was very first launched. In your appDidFinishLaunching method in your app delegate:

if (![[NSUserDefaults standardDefaults] objectForKey:@"FirstLaunch"]) {
    [[NSUserDefaults standardDefaults] setObject:[NSDate date] forKey:@"FirstLaunch"];
}

此后的任何一点，您都可以查看此日期并将其与您的任何日期进行比较想要。

Any point after this, you can check this date and compare it to whatever you want.

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