Remove view of UIViewController from UIWindow

Question

When user click on add button, I'm adding view on UIWindow. Now If user clicks on add button again I want to first remove that view and add it again.

I have used this code to add view on UIWindow :

ProgressVC *vc = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"IDProgressVC"];
[[[[UIApplication sharedApplication] delegate]window] addSubview:vc.view];

For Remove I have tried this code :

[vc.view removeFromSuperview];
[[[[UIApplication sharedApplication] delegate]window] setNeedsLayout];
vc = nil;

Any help will be appreciated.

Answer 1

Try This

// Make this global property

@property(nonatomic, strong) UIView * currentView;

//store the view in gloabal property
ProgressVC *vc = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"IDProgressVC"];
currentView = vc.view;
[[[[UIApplication sharedApplication] delegate]window] addSubview:currentView];

//remove it 
[currentView removeFromSuperview];
[[[[UIApplication sharedApplication] delegate]window] setNeedsLayout];
currentView = nil;