What does it mean to "chain to a superclass"?

Question

I am using CommonsWare's Android CWAC-Camera Library and trying to use my own UI for the camera fragment. Please forgive me if this is a dumb question. I am following the README file specifically this part:

"You can subclass CameraFragment and override onCreateView(). Chain to the superclass to get the CameraFragment's own UI, then wrap that in your own container with additional widgets, and return the combined UI from your onCreateView()."

Has anyone used this and can provide an example? Thanks!

score 4 · Accepted Answer · edited Aug 06 '13 at 23:14

4

They mean something like this:

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
  View camera = super.onCreateView(inflater, container, savedInstanceState);

  // wrap camera in some other container that you inflate or instantiate

  return yourView;
}

edited Aug 06 '13 at 23:14

CommonsWare

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answered Aug 06 '13 at 23:11

Rene M.

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Precisely, though I edited your answer to put in the right parameters. – CommonsWare Aug 06 '13 at 23:14
ah ok! Thanks for the help and thank you CommonsWare for the excellent library! – IZI_Shadow_IZI Aug 07 '13 at 00:19
can you please provide more specific example? I am facing some problems with it now – Geralt_Encore Aug 31 '13 at 10:54
What problem? The example is complete – Rene M. Sep 12 '13 at 10:10

What does it mean to "chain to a superclass"?

1 Answers1