Container view change view dynamically - ios

Question

I have the following layout.
Green and Orange views are extra views added to the view controller.
I want to change the contained view controllers view to be changed according to the button user clicked.

Answer 1

I have Answer Using UIContainer dynamically show two ViewControllers in ios,
I have Create BaseViewController and Two viewControllers(GreenViewController and OrangeViewController), let seen below image are
And baseView inserted two UIButton(Green and Orange button), UIContainerView and the source is below,
BaseViewController.h file:
#property (weak, nonatomic) IBOutlet UIView *containView;
#property (weak, nonatomic) UIViewController *currentViewController;
BaseViewController.m file:
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
_currentViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"GreenViewController"];
_currentViewController.view.translatesAutoresizingMaskIntoConstraints = NO;
[self addChildViewController:_currentViewController];
[self addSubview:_currentViewController.view toView:_containView];
}
- (void)addSubview:(UIView *)subView toView:(UIView*)parentView {
[parentView addSubview:subView];
NSDictionary * views = #{#"subView" : subView,};
NSArray *constraints = [NSLayoutConstraint constraintsWithVisualFormat:#"H:|[subView]|"
options:0
metrics:0
views:views];
[parentView addConstraints:constraints];
constraints = [NSLayoutConstraint constraintsWithVisualFormat:#"V:|[subView]|"
options:0
metrics:0
views:views];
[parentView addConstraints:constraints];
}
- (void)cycleFromViewController:(UIViewController*) oldViewController
toViewController:(UIViewController*) newViewController {
[oldViewController willMoveToParentViewController:nil];
[self addChildViewController:newViewController];
[self addSubview:newViewController.view toView:self.containView];
[newViewController.view layoutIfNeeded];
// set starting state of the transition
newViewController.view.alpha = 0;
[UIView animateWithDuration:0.5
animations:^{
newViewController.view.alpha = 1;
oldViewController.view.alpha = 0;
}
completion:^(BOOL finished) {
[oldViewController.view removeFromSuperview];
[oldViewController removeFromParentViewController];
[newViewController didMoveToParentViewController:self];
}];
}
Green Button Action is below
- (IBAction)greenViewAction:(id)sender {
UIViewController *newViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"GreenViewController"];
newViewController.view.translatesAutoresizingMaskIntoConstraints = NO;
[self cycleFromViewController:self.currentViewController toViewController:newViewController];
self.currentViewController = newViewController;
}
Orange Button Action is below
- (IBAction)orangeViewAction:(id)sender {
UIViewController *newViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"OrangeViewController"];
newViewController.view.translatesAutoresizingMaskIntoConstraints = NO;
[self cycleFromViewController:self.currentViewController toViewController:newViewController];
self.currentViewController = newViewController;
}
its working for me, see the output below,
hope its helpful