how would is change background image using UIsegmented control - ios

Question

how would is change background image using UIsegmented control ?
i want to change the background image using segment control and after select that image for above process.

Answer 1

Here's a link to the documentation for UISegmentedControl.
Edit
Maybe I had misunderstood your question. If you want to change the background image of a view, you can add your controller as a target for the segmented control.
[segmentedControl addTarget:self action:#selector(updateBackgroundImage:) forControlEvents:UIControlEventValueChanged];
When the UIControlEventValueChanged gets triggered for your control you can use any of this methods to change the background image you want.
- (void)updateBackgroundImage:(UISegmentedControl *)sender {
self.imageView = [UIImage imageNamed:(sender.selectedSegmentIndex ? #"foo": #"bar")];
}
Original Answer
As you'll find it that document you can change the appearance of the control in different ways. A few examples.
-[UISegmentedControl setBackgroundImage:forState:barMetrics:]
-[UISegmentedControl dividerImageForLeftSegmentState:rightSegmentState:barMetrics:]
-[UISegmentedControl setImage:forSegmentAtIndex:]
When the UIControlEventValueChanged gets triggered for your control you can use any of this methods to change the sender's appearance.

Answer 2

You have to add Target to segmented controller like
Then, when you click on any segment your "action" method will get called , change background image or do anything in "action" method
[segmentedControl addTarget:self action:#selector(action:)forControlEvents:UIControlEventValueChanged];
Method implementation should like
-(void)action:(id)sender
{
//code for setting background image.
}

Answer 3

Set the IBAction to your segmentbar with UIControlEventValueChanged event type and based on selected index you can change the image of your imageView
-(IBAction)segmentedChartButtonChanged:(id)sender
{
switch (self.segmentedButton.selectedSegmentIndex) {
case 0:
self.imageView.image = [UIImage imagenamed:#"imageName"];
break;
case 1:
self.imageView.image = [UIImage imagenamed:#"imageName"];
break;
default:
break;
}
}

Answer 4

Try this one.. May be it will help you..
First take UIImageView and set IBOutlet of that and give name like Backgroundimg And also add Segment value change method And also set outlet to Imageview in xib and outlet of method to UISegmentControl.
//.h file
IBOutlet UIImageView *Backgroundimg;
-(IBAction)SegmentChanged:(id)sender;
And just add below code in .m file
//.m file
-(IBAction)SegmentChanged:(id)sender
{
UISegmentedControl *seg=(UISegmentedControl *)sender;
if(seg.selectedSegmentIndex==0)
{
[Backgroundimg setImage:[UIImage imageNamed:#"intro1.png"]];
}
else if(seg.selectedSegmentIndex==1)
{
[Backgroundimg setImage:[UIImage imageNamed:#"intro2.png"]];
}
}