Android OPEN spinner with single button click

Question

I have implemented button which clicks and opens dialog with spinner inside as described here

However this is two clicks. One to open dialog and one to open spinner. I want the spinner to open with a single click of the button? How can this be done?

Is there anyway to just open spinner from button click w/o going to dialog. If not how can I open dialog view and have the spinner open at same time.

Answer 1

把它放在你的按钮中。单击

spinner.performClick();

Answer 2

在活动中定义一个微调器，在xml中有0高度和0宽度，然后onItemSelected将起作用