My application requires users to hold down the trackball in order to access an a开发者_开发百科dvanced menu. Not all phones have a trackball, however, so I need to remove this requirement for such phones. Is there a way to detect if the phone has a trackball?
Use the Configuration
object, specifically the navigation
and navigationHidden
fields. You can get a Configuration
object via getResources().getConfiguration()
.
精彩评论