How to detect if Facebook app is installed on iOS? [duplicate]

Question

On iOS, you can launch the Facebook app and link to a profile by opening a url like this: fb://profile/12345

The only problem is that if the Facebook app isn't installed, nothing happens.

Is there a way to detect if the app is installed or if the url scheme fb:// is supported?

This would apply broadly to other apps like Twitter as well.

Answer 1

BOOL isInstalled = [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"fb://"]]  if (isInstalled) {  } else {  } 

Answer 2

Try just using the canOpenURL: function

NSURL *fbURL = [NSURL URLWithString:@"fb://"];//or whatever url you're checking  if ([[UIApplication sharedApplication] canOpenURL:fbURL]) {   //open it etc   }