检测应用程序首先启动Windows手机

Question

我在windows phone dev上很新。我想检测用户何时第一次启动我的应用程序以显示解释框架，例如通过调用：

if(firstLaunch)
showTheFrameToTheGuyBecauseHeLaunchedTheAppForTheFirstTime();

如果有人能向我们展示如此小的剧本，我会非常高兴......

先谢谢你们！

Answer 1

我建议你使用内置的应用程序设置。

const string settingsAppLaunched = "appLaunched";

public static bool IsFirstLaunch(){
    IsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;
    return !(settings.Contains(settingsAppLaunched) && settings[settingsAppLaunched]);
}

public static bool Launched(){
    if(IsFirstLaunch()){
        IsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;
        settings.Add(settingsAppLaunched, true);
        settings.Save();
    }
}

//usage:
if(IsFirstLaunch()){
    showTheFrameToTheGuyBecauseHeLaunchedTheAppForTheFirstTime();
    Launched();
} 

有关Windows Phone中的设置的Microsoft文档可用here。

Answer 2

您只需使用IsolatedStorageSettings。

if(!IsolatedStorageSettings.ApplicationSettings.Contains("first"))
{
   // Do your stuff
   IsolatedStorageSettings.ApplicationSettings["first"] = true;
   IsolatedStorageSettings.ApplicationSettings.Save();
}

此代码将执行此操作。