How to check if Facebook is installed or not WP8?

Question

Below link help to open facebook app, If, installed

Launcher.LaunchUriAsync(new Uri("fb://"))

I need to know facebook installed or not like below condition,

if(installed)
{
//my code
}
else
{
"not installed"
};

Thanks

Answer 1

You cannot check if third party apps like Facebook, Soundhound are installed. The only thing that you can check is the list of apps those you published that are installed on the device.

You can try this out,

var success = await Windows.System.Launcher.LaunchUriAsync(new Uri("fb://"));

if (success)
{
   // URI launched
}
else
{
   // URI launch failed
}