I have a simple activity consisting in 4 views defined in an xml file. For the sake of performance, is it better to access my views by their id or to have member referencing them in my activity ? Is it notably different ?
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I have a simple activity consisting in 4 views defined in an xml file. For the sake of performance, is it better to access my views by their id or to have member referencing them in my activity ? Is it notably different ?
Thanks
You should call
findViewById()just once for each view that you need to reference in your app. Make this call inonCreate()and save the returned view instances in private member variables. Then you can reference them directly later.findViewById() is expensive, especially if you have a lot of views.
This is pretty much standard Android practice.