How to change value in UISegmentedControl? - xcode

Question

I have set up a segmented control in my project. I want to use it in my settings scene to control whether the orientation is landscape left or landscape right. I have in set up in my storyboard and here is my code in my SettingsViewController.h
#import <UIKit/UIKit.h>
#interface SettingsViewController : UIViewController
{
IBOutlet UISegmentedControl *orientation;
}
#property (nonatomic, retain) UISegmentedControl *orientation;
- (IBAction) setOrientation;
#end
and here is my code in SettingsViewController.m
#import "SettingsViewController.h"
#implementation SettingsViewController
#synthesize orientation;
- (IBAction)setOrientation
{
NSLog(#"index = %d\n", orientation.selectedSegmentIndex);
if (orientation.selectedSegmentIndex == 0) {
NSLog(#"left\n");
}
if (orientation.selectedSegmentIndex == 1) {
NSLog(#"right\n");
}
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
#end
I was wondering why the value isn't changing from 0 to 1 when I select the right side of the control. Also I was wondering if in my .h I need to declare IBOutlet because I dont use the segmented control as an outlet. I just use it to take in which side is selected and then use that to set the orientation of the app.

Answer 1

Try this. Hook it up in the Storyboard to the segmentedControl using valueChanged.
- (IBAction)segmentedControlChanged:(id)sender {
UISegmentedControl *segmentedC = (UISegmentedControl *)sender;
if (segmentedC.selectedSegmentIndex == 0) {
// NSLog(#"selectedSegmentIndex == 0");
[self selectFirstSegment];
}
}

Answer 2

in segment action set the orientation landscape or potriat..and in .m file end of bool orientation type method set
return yes;
in all .m files .