Call a third party app from another app
<p>Is it possible to launch any iPhone/iPad application from within another app?
For example in my application if I want the user to read a document say a pdf file from any of the installed apps on iphone or an ipad say PDFReaderLite.
How can i launch this app from my app.</p>

<p>How can we know which all installed apps support reading of documents and show a list to open with any of these apps from my app?</p>

<p>How do we get the URL Schemes for the installed apps?</p>
