Any MergeCursor sample for android?

I want to join the results of multiple cursors and I found that the SDK provides the MergeCursor class but I am not sure how to use it. Does anyone know where to find a sample code please?

To be more precise I want a sample for sorting a MergeCur开发者_如何学编程sor...

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You can take a look at MergeCursorTest in the Compatibility Test Suite (CTS). It gives you a good overview how to use it.