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In my app B, I need to check if app A ever installed. If A has been installed, B will invoke A.

If A has not been installed, B will go to marketplace to download A.

how to implement this???
ANY ADVICE WILL BE GREAT！
THANKS!

Den
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IloveIniesta
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2 Answers2

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There is currently no way for you to check whether a third-party application was installed on the device. However, it you are the publisher of that application, you can use:

IEnumerable<Package> apps = Windows.Phone.Management.Deployment.InstallationManager.FindPackagesForCurrentPublisher();
apps.First().Launch(string.Empty);

This capability is documented here.

Den
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1

If app A and app B are not from the same publisher there is no direct way to get this. However, if you were able to work with the developer of app B to register a custom URI association, app A could interact with the app by launching the custom URI.

http://msdn.microsoft.com/en-us/library/windowsphone/develop/jj206987(v=vs.105).aspx

David Gordon
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