How to call a sub view from another sub view in xcode

Question

I had a main view name "View control" and two sub views view1 and view2... My application loads with view1 as a sub view in the main view .. I had a "Next" button on main view . when I press it..view1 should be replaced with view2 with in the main view... Any idea?

Answer 1

You have to use NSNotificationCenter.

Assuming you have 3 views, One main view and 2 subviews.

Main view = ContainerView

Subview1= HomeViewController

Subview2= nextViewcontroller

in Subview1 use following code.

[[NSNotificationCenter defaultCenter] postNotificationName:@"ChangetoView2" object:nil];

in Subview2 use following code.

[[NSNotificationCenter defaultCenter] postNotificationName:@"ChangetoView1" object:nil];

use the below code in the init method of ContainerView.

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(ChangeTheView1:) name:@"ChangetoView1" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(ChangeTheView2:) name:@"ChangetoView2" object:nil];

And in the same class use the following function.

- (void)ChangeTheView1:(NSNotification *)notification
{
   // Change  here.
[bViewcontroller.view RemoveFromSuperview];
aViewController = [[HomeViewController alloc] initWithNibName:@"HomeViewController" bundle:nil]; 
aViewController.showLogin = NO; 
[self.containerView addSubview:aViewController.view];
 companyLogoImage.hidden = YES;
}

- (void)ChangeTheView2:(NSNotification *)notification
{
    [aViewcontroller.view RemoveFromSuperview];
    bViewController = [[SomeViewController alloc] initWithNibName:@"SomeViewController" bundle:nil]; 
    [self.containerView addSubview:bViewController.view];
}