Associate file extension with Xamarin Android application

Question

I am trying to associate a custom file extension with my Xamarin-based Android application. I would like my application to open when the user chooses a particular type of file from the file manager.

My files use the extension ".label" but for some reason I cannot get Android to add my app to the chooser listen when selecting a file with such file extension.

However, if I use the ".xml" extension it seems to work. Here is the IntentFilter I am using:

[IntentFilter(new[] { Intent.ActionView, Intent.ActionEdit },
Categories = new[] { Intent.CategoryDefault, Intent.CategoryBrowsable },
DataScheme = "file",
DataHost = "*",
DataMimeType = "*/*",
DataPathPattern = ".*\\.xml")]

you need to speify mime type of your extension .Look at this http://stackoverflow.com/questions/14256537/android-intent-filter-for-custom-file-extension — Jagadeesh Govindaraj, Sep 11 '15 at 14:30
actually, removing DataMimeType completely worked out for me. — gonzobrains, Sep 11 '15 at 15:19

score 4 · Accepted Answer · answered Sep 11 '15 at 16:41

This ended up working for me:

[IntentFilter(new[] { Intent.ActionView, Intent.ActionEdit },
    Categories = new[] { Intent.CategoryDefault, Intent.CategoryBrowsable },
    DataScheme = "file", 
    DataHost = "*",     
    DataPathPattern = ".*\\\\.label")]

Associate file extension with Xamarin Android application

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