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Subviews becomes nil - UIStoryboard


Subviews becomes nil - UIStoryboard

By : user2948190
Date : November 14 2020, 04:48 PM
I wish this helpful for you Until you present view controller or load view explicitly, the subviews in that view controller will be nil.
So, the simply way to trigger your view controller to initialize all subviews, is to call
code :


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How can I loop through all subviews of a UIView, and their subviews and their subviews

How can I loop through all subviews of a UIView, and their subviews and their subviews


By : Rahul Kumar
Date : March 29 2020, 07:55 AM
will help you How can I loop through all subviews of a UIView, and their subviews and their subviews? , Use recursion:
code :
// UIView+HierarchyLogging.h
@interface UIView (ViewHierarchyLogging)
- (void)logViewHierarchy;
@end

// UIView+HierarchyLogging.m
@implementation UIView (ViewHierarchyLogging)
- (void)logViewHierarchy
{
    NSLog(@"%@", self);
    for (UIView *subview in self.subviews)
    {
        [subview logViewHierarchy];
    }
}
@end

// In your implementation
[myView logViewHierarchy];
UIStoryboard open from another UIStoryboard

UIStoryboard open from another UIStoryboard


By : morpheus
Date : March 29 2020, 07:55 AM
around this issue I have a problem with calling one UIStoryboard from the second. My first Storyboard - Main, second - Management. When you click UIButton no action occurs. My source code: , Need replace old code by this.
code :
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Management" bundle:[NSBundle mainBundle]];
                                            UIViewController *yourViewController = [storyboard instantiateViewControllerWithIdentifier:@"ManagementIDS"];
                                            [self presentViewController:yourViewController animated:YES completion:nil];
TreeView in IOS rearrange following Subviews after adding or removing subviews from Scrollview

TreeView in IOS rearrange following Subviews after adding or removing subviews from Scrollview


By : Arjun Iyer
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , You already realized a lot of code? Because I probably would use a tableview.
As datasource of the table you can use an array of dictionary; and in each dictionary you can store the rows informations like:
Setting the constraints of a views subviews without knowing the amount of subviews there are

Setting the constraints of a views subviews without knowing the amount of subviews there are


By : akshay
Date : March 29 2020, 07:55 AM
With these it helps So my view is pretty simple to setup but I can't figure out how to do a specific task. ,
So first i add the imagesviews to the view
How to add subviews in Table View Cell while Expanding them and perform actions on their elements of SubViews?

How to add subviews in Table View Cell while Expanding them and perform actions on their elements of SubViews?


By : Ryan Paul-Henry Sain
Date : March 29 2020, 07:55 AM
wish help you to fix your issue You can design your cell for a expanded mode in interface builder and set the auto layout constraint correctly instead of adding subview to the tableView cell while cell is expanding.
1) In interface builder design your cell's view for expanded cell and add subviews in a view which you want to be added while cell is expanded.
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