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copied!<p>This might be something you're looking for: <a href="http://applookup.com/2010/09/iphone-apps-with-special-url-shortcuts/" rel="nofollow">http://applookup.com/2010/09/iphone-apps-with-special-url-shortcuts/</a></p> <p><strong>Updates</strong>: the link above is dead. And as cdm9002 suggested, for the love of dogs, here are the information (credits goes to <a href="http://iosdevelopertips.com/cocoa/launching-your-own-application-via-a-custom-url-scheme.html" rel="nofollow">iOS developer tips</a>)</p> <p>First of all, you need to use method like UIApplication:openURL: to launch an application from a webpage. For example, you can launch Apple Mail in this way:</p> <pre><code>[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto://info@iphonedevelopertips.com"]]; </code></pre> <p>To launch your own application, there are two things to do: register the custom URL schemes and handle the URL launch in your application.</p> <p>To register the custom URL schemes, you edit the info.plist. Below the custom scheme 'myapp' is registered.</p> <pre><code>CFBundleURLTypes CFBundleURLSchemes myapp CFBundleURLName com.yourcompany.myapp </code></pre> <p>Now, you can launch the app with the following URLs.</p> <pre><code>myapp:// myapp://some/path/here myapp://?foo=1&amp;bar=2 myapp://some/path/here?foo=1&amp;bar=2 </code></pre> <p>And in iPhone SDK (I think it applies to iPad as well), when launching the application in response to any of the URLs above, will send a message to the <strong>UIApplicationDelegate</strong>.</p> <p>In order to retrieve the information passed in the URL, like /some/path/here, you simply provide an implementation for the message in your delegate. </p> <pre><code>- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url { // Do something with the url here } </code></pre>

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