Is there a generic way to determine the URL scheme implemented by any app?

How can I know if an application is capable of开发者_JAVA技巧 being launched from another application i.e. whether or not it implements a URL scheme. And if it does, how can I know what it is?

You can't just determine any app's scheme programmatically at runtime, but if you know the specific apps you need, just ask them directly. Or check the handy (but incomplete) site "HandleOpenURL"