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2014/10/15 ¤U¤È 10:13:59

iphone Programming Glossary: setselectedsegmentindex

UISegmentedControl register taps on selected segment

http://stackoverflow.com/questions/1620972/uisegmentedcontrol-register-taps-on-selected-segment

iphone uisegmentedcontrol share improve this question You can subclass UISegmentedControl and then override setSelectedSegmentIndex void setSelectedSegmentIndex NSInteger toValue if self.selectedSegmentIndex toValue super setSelectedSegmentIndex UISegmentedControlNoSegment.. share improve this question You can subclass UISegmentedControl and then override setSelectedSegmentIndex void setSelectedSegmentIndex NSInteger toValue if self.selectedSegmentIndex toValue super setSelectedSegmentIndex UISegmentedControlNoSegment else super.. setSelectedSegmentIndex void setSelectedSegmentIndex NSInteger toValue if self.selectedSegmentIndex toValue super setSelectedSegmentIndex UISegmentedControlNoSegment else super setSelectedSegmentIndex toValue If using IB make sure you set the class of your..

UISegmentedControl setSelectedSegmentIndex: without valueChanged Action

http://stackoverflow.com/questions/4570941/uisegmentedcontrol-setselectedsegmentindex-without-valuechanged-action

setSelectedSegmentIndex without valueChanged Action I'm setting the selectedSegmentIndex of an UISegmentedControl via code. Whenever I do this..

UISegmentedControl change event not firing in iOS5

http://stackoverflow.com/questions/8054728/uisegmentedcontrol-change-event-not-firing-in-ios5

UIControlEventValueChanged yourself. However you have to be careful with this. Say you do segmentedControl setSelectedSegmentIndex newIndex segmentedControl sendActionsForControlEvents UIControlEventValueChanged If you build and run this on iOS 5 it works.. on iOS 5 it works as you expect. If you build and run this on iOS 4 you'll get your actions fired twice once when you setSelectedSegmentIndex and again when you sendActions... . The way around this is to do some sort of guard. This could be a runtime check to indicate.. or could even be something more mundane like this changingIndex is a BOOL ivar changingIndex YES segmentedControl setSelectedSegmentIndex newIndex changingIndex NO segmentedControl sendActionsForControlEvents UIControlEventValueChanged and then in your action..