Spinner with drawSelectorOnTop

问题:

What is the purpose of drawSelectorOnTop in a Spinner? Whether I set this flag to "true" or "false", I cannot see any difference.

Thanks

回答1:

Well, like the name says it displays the selector control on top of the contents of the Spinner.

Whether or not there will be visual differences will depend on the style/contents of the Spinner. This is an example.

You'll note that the selector control appears to be on top of the Spinner

回答2:

Spinner does NOT support android:drawSelectorOnTop, as it does not use a selector, from Romain Guy from Google

https://groups.google.com/forum/?fromgroups=#!topic/android-developers/c0OcLBrxsaU