ios - UISegmentedControl won't change value -


i trying create uisegmentedcontrol programatically. have uiviewcontroller in storyboard nothing in it.

.h file

uisegmentedcontrol *segmentedcontrol; nsstring *feedbackbuttontitle; nsstring *contactsbuttontitle;

and here property declarations.

@property (nonatomic,retain) iboutlet uisegmentedcontrol *segmentedcontrol; -(void) segmentedcontrolindexchanged;

in viewdidload: have initalized , added uisegmentedcontrol.

   nsstring *language = [[nslocale preferredlanguages] objectatindex:0]; if ([language isequaltostring:@"en"]){     contactsbuttontitle = [[[configfiledictionary objectforkey:@"contacts"] objectforkey:@"label"] objectforkey:@"en"];     feedbackbuttontitle = [[[[[configfiledictionary objectforkey:@"contacts"] objectforkey:@"contact"]objectforkey:@"feedback"]objectforkey:@"label"]objectforkey:@"en"]; } else if([language isequaltostring:@"fr"]){     contactsbuttontitle = [[[configfiledictionary objectforkey:@"contacts"] objectforkey:@"label"] objectforkey:@"fr"];     feedbackbuttontitle = [[[[[configfiledictionary objectforkey:@"contacts"] objectforkey:@"contact"]objectforkey:@"feedback"]objectforkey:@"label"]objectforkey:@"fr"];  } nsarray *itemsarray = [[nsarray alloc] initwithobjects:contactsbuttontitle, feedbackbuttontitle, nil]; segmentedcontrol = [[uisegmentedcontrol alloc] initwithitems:itemsarray]; segmentedcontrol.segmentedcontrolstyle = uisegmentedcontrolstyleplain; //segmentedcontrol.selectedsegmentindex = 0; segmentedcontrol.frame = cgrectmake(0.0f, 0.0f, 320.0f,40.0f); [segmentedcontrol addtarget:self action:@selector(segmentedcontrolindexchanged) forcontrolevents:uicontroleventvaluechanged];   //  [self.view addsubview:segmentedcontrol];  // create view contact display. [self createviews];

and (void)segmentedcontrolindexchanged

-(void)segmentedcontrolindexchanged {     switch (self.segmentedcontrol.selectedsegmentindex)     {         case 0:             [self createviews];             break;         case 1:             [self showfeedbackform];             break;         default:             break;     } }

this showing segmented control on screen fine, when click on options in segmentedcontrol, goes option case 0. segmented control , opens [self createviews];

on inserting breakpoints @ line case 0, noticed option _selectedsegment in segmentedcontrol 1. doesn't make sense.

ok created in uiviewcontroller property segmentedcontrol , wrote code:

- (void)viewdidload {     [super viewdidload];     nsarray *itemsarray = [[nsarray alloc] initwithobjects:@"a", @"b", nil];      self.segmentedcontrol = [[uisegmentedcontrol alloc] initwithitems:itemsarray];     self.segmentedcontrol.segmentedcontrolstyle = uisegmentedcontrolstyleplain;     self.segmentedcontrol.selectedsegmentindex = 0;     self.segmentedcontrol.frame = cgrectmake(0.0f, 0.0f, 320.0f,40.0f);     [self.segmentedcontrol addtarget:self action:@selector(segmentedcontrolindexchanged) forcontrolevents:uicontroleventvaluechanged];     [self.view addsubview:self.segmentedcontrol]; }      -(void)segmentedcontrolindexchanged {     switch (self.segmentedcontrol.selectedsegmentindex)     {         case 0:             nslog(@"createviews");             break;         case 1:             nslog(@"showfeedbackform");             break;         default:             break;     } }

it works me - logging proper choices.

as _segmentedcontrol right - notice use dot notation segmentedcontrol. might case since when you're not using dot notation - you're not calling getter.

edit

to sum little - segmentedcontrol .h file redundant - it's uisegmentedcontrol. property can referenced dot notation - self.segmentedcontrol. or synthesized name (made default) _segmentedcontrol.

so you're doing referencing .h object when initializing , adding uisegmentedcontroller when segmentedcontrolindexchanged called - change in property not visible.


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