Handing a response in a controller after segueing to another controller

Handing a response in a controller after segueing to another controller

By : frank
Date : November 20 2020, 11:01 PM
wish help you to fix your issue From Cloudinary perspective you could use one of the following approaches:
code :

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Keep elements in Navigation Controller when segueing on iOS

Keep elements in Navigation Controller when segueing on iOS

By : Grigor Grigoryan
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Ok I finally figured it out. I think the best way to implement this kind of behavior is not using a segue between viewcontrollers. Since both views are different ways to present the same data, I implemented a controller that has the two views (list and map), and then use a button to perform an action that swaps views, as comented in apple developer library:
code :
- (IBAction)toggleMainViews:(id)sender {
    [UIView transitionFromView:(displayingPrimary ? primaryView : secondaryView)
        toView:(displayingPrimary ? secondaryView : primaryView)
        options:(displayingPrimary ? UIViewAnimationOptionTransitionFlipFromRight :
        completion:^(BOOL finished) {
            if (finished) {
                displayingPrimary = !displayingPrimary;
How to ensure that View Controller does not reload when segueing?

How to ensure that View Controller does not reload when segueing?

By : nate
Date : March 29 2020, 07:55 AM
this one helps. I had a client that wanted to use MFSideMenu, and the solution I used was to place a UINavigationVC as the center vc. Instead of segues, the app uses pops and pushes to navigate. This has the desired behavior of maintaining the app's main view controller in the navigation stack while user interacts with the push-ed view controller.
The side menus are table views, so when a table row gets selected, a message is sent to the center vc's root vc and it does basically this:
code :
- (void)sideMenu:(MFSideMenuContainerViewController *)menuVC didSelectItemAtIndex:(NSInteger)index {

    // we keep an array of vs classes to instantiate for each menu item
    Class *klass = self.menuVCClasses[index];

    // client also wanted each vc in it's own nib.  I would have preferred storyboard, but...
    NSString *nibName = NSStringFromClass(klass);
    UIViewController *vc = [[klass alloc] initWithNibName:nibName bundle:[NSBundle mainBundle]];

    // or from storyboard
    UIViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier:NSStringFromClass(klass)]; 

    // here's the punch line.  pop without animation, push with animation
    // this will keep the main vc around at the bottom of the stack
    [self.navigationController popToRootViewControllerAnimated:NO];
    [self.navigationController pushViewController:vc animated:YES];
Is it safe to import a view controller to another controller for segueing?

Is it safe to import a view controller to another controller for segueing?

By : user7351371
Date : March 29 2020, 07:55 AM
Hope this helps Yes it is safe to import view controllers. There are a few caveats however,
Do not import 2 headers into each other, this will cause non-obvious error.
code :
#import "Screen2ViewController.h"

#import "Screen1ViewController.h"
#import "Screen2ViewController.h"

//No imports

#import "Screen1ViewController.h"
How to add buttons to navigation controller visible after segueing?

How to add buttons to navigation controller visible after segueing?

By : missie bullard
Date : March 29 2020, 07:55 AM
I hope this helps you . For XCode 6, the UINavigationItem for the 2nd view controller onwards is not added automatically on the View Controller Object inside the storyboard. You will have to drag the UINavigationItem onto the Navigation Bar for that view Controller Object before adding UIBarButtonItem on top of it.
I am not sure why it is designed that way. I only discovered about this a few weeks ago.
Segueing to another view controller without displaying the first in iOS 8

Segueing to another view controller without displaying the first in iOS 8

By : Habib Ridho
Date : March 29 2020, 07:55 AM
it fixes the issue I've developed well over 50 applications with more UI that I would probably like to. At the beginning, I also did the UI this way - have login controller first, then do seque, remove login controller.. The problem is that if your navigation tree grows more complicated, having login controller as your root starts to present serious issues.
UI Dispatcher
code :
// --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
// MARK: - Login

func showLoginIfNeededAnimated(animated : Bool, completion : (() -> Void)?) {

    // Show login if user is not logged-in, for example
    if loginShouldAppearCondition {

        // Instantiate login VC from storyboard
        let storyboard : UIStoryboard = UIStoryboard(name: APPLICATION_UI_STORYBOARD_NAME_IPHONE_MAIN_FLOW, bundle: NSBundle.mainBundle())
        let loginVC : LoginVC = storyboard.instantiateViewControllerWithIdentifier(STORYBOARD_NAME_LOGIN) as! LoginVC

        // Present it
        self.baseController.presentViewController(baseNC, animated: animated, completion: completion)

        *Note - keep reference for login because of ARC!
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