iOS: Replacing modal ViewController with UIModalTransitionStyleFlipHorizontal - iphone

I present a modal ViewController using presentViewController. Now I want to flip this modal view using UIModalTransitionStyleFlipHorizontal so from within the presented ViewController I call:
flipsideView.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentViewController:flipsideView animated:YES completion:^{}];
The animation looks fine. But when I dismiss the flipsideView first modal view is still visible.
Is there a way to dismiss both modal views at once using the UIModalTransitionStyleCoverVertical. Or is it possible to replace the first modal view with the flipsideView using the flip-animation?
Thanks!

You can go back to the first controller like this, from a button in the flipsideView:
-(IBAction)goBackToFirst:(id)sender {
self.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self.presentingViewController.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}

Related

Pop to the main view controller

In my app I've 2 view controller that they appears by using a modal transition, now I developed the 3rd view controller and I put a button to go back to the main view controller, but how I can go back to the main view controller?
I tried with this:
[self dismissViewControllerAnimated:YES completion:nil];
but with this code I go back to the 2nd view controller. How I fix it?
Thank you!
Assuming your first modal presented the second modal, the following should work:
__weak UIViewController *vcThatPresentedCurrent = self.presentingViewController;
[self dismissViewControllerAnimated:YES completion:^{
[vcThatPresentedCurrent dismissViewControllerAnimated:YES completion:nil];
}];
Try with this....
[self.presentingViewController.presentingViewController
dismissViewControllerAnimated:YES completion:nil];
Let me know if you have any problem.

navigation bar is hidden when i return back to view in iOS

I am new in iPhone development. I created an app which use a navigation bar using storyboard. My problem is that i am opening a viewB programmatically from viewA on button click and it successful. Now to go back to viewA i have used cancel button. when i click on cancel button (previous) the (viewA) is opened but navigation bar is not shown. and viewA have navigation bar control but viewB does not.
Thanks in advance
View A
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
EditViewController *viewController = (EditViewController *)[storyboard instantiateViewControllerWithIdentifier:#"EditViewController"];
[self presentViewController:viewController animated:NO completion:NULL];
View B:
- (IBAction)cancelButtonPressed:(id)sender {
if ( lables != NULL) {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
ScannerViewController *viewController = (ScannerViewController *)[storyboard instantiateViewControllerWithIdentifier:#"ScannerViewController"];
[self presentViewController:viewController animated:NO completion:NULL];
}
else{
[self.navigationController popViewControllerAnimated:YES];
}
You are presenting the viewB & popping it using self.navigationController, you should use one way, either use presentviewcontroller & dismissviewcontroller.
[self dismissViewControllerAnimated:YES completion:nil];
For your scenario it is best to use UINavigationController
e.g
Pushing:
[self.navigationController pushViewController:viewController animated:YES];
Closing
[self.navigationController popViewControllerAnimated:YES];
You have to use a navigation controller, in your StoryBoard select your view A, Editor Menu > Embed In > Navigation controller.
http://developer.apple.com/library/ios/#documentation/WindowsViews/Conceptual/ViewControllerCatalog/Chapters/NavigationControllers.html
If you are using storyboard no need to present the viewController programmatically. press and hold ctrl, drag from viewCA to viewCB and select model from popup menu.
For dismissing the viewController
[self dismissViewControllerAnimated:YES completion:nil];
If you want to send any data to viewCB give segue identifier (for example "segid")
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([[segue identifier] isEqualToString:#"segid"])
{
//write your code here.
}
}
This method will get called automatically (delegate) while presenting (of pushing) viewController.
I was also facing the same problem. The solution is to never select the modal on click on the back button, because modal covers your whole view and that's why on the back screen navigation controller is not showing. So don't make connection for back button, just write the code for back button.
[self dismissViewControllerAnimated:YES completion:nil];
When you needed (e.g. viewDidAppear method) use,
[self.navigationController setNavigationBarHidden:NO animated:YES];

Back to main view controller from modal View controller

I want to make a back button from a modal view to the Main view.
The View Controller is embedded in the navigation controller. The menu button take me to the Second View Controller. There I have a back button who works fine using this:
[self.navigationController popViewControllerAnimated:YES];
I want to go back to the Main View Controller from the Page Two VC.
I have tried:
- (IBAction)goToRootView:(id)sender {
[self.presentingViewController dismissViewControllerAnimated:(NO) completion:nil];
[self.navigationController popViewControllerAnimated:YES];
}
and:
- (IBAction)goToRootView:(id)sender {
[self dismissViewControllerAnimated:(NO) completion:nil];
[self.navigationController popViewControllerAnimated:YES];
}
The first just goes back to the Second VC, the last sends and lldb error.
How can I go from Mantras Page Two VC to Main VC?
Thank you for your help!
You can tray this...
CHS_View_Controller *oldView = [self.storyboard instantiateViewControllerWithIdentifier:#"CHS_View"];
UINavigationController *yourNavigationController = [[UINavigationController alloc] initWithRootViewController:oldView];
yourNavigationController.modalTransitionStyle= UIModalTransitionStyleCrossDissolve;
[self presentViewController:yourNavigationController animated:YES completion:nil];
for that you must:
1) import you dest controller
#import "CHS_View_Controller.h" // your controller name
and
2)
set an Identifier for your CHS_Controller, "CHS_View" in the bellow example (into the Storyboard Editor and in the Attributes Inspector)
In the first snippet, instead of
[self.navigationController popViewControllerAnimated:YES];
try
[self.navigationController popToRootViewControllerAnimated:YES];

Dismiss ModalView does not work here

So I have a tabBarController as a modalview, and it shows up fine. As I click some of the tabs, the views are loading properly. I want to dismiss the modalView when I click on tabBarController.selectedIndex ==4
So I write in the viewDidLoad and also tried in the viewWillAppear of that view controller to dismissModalViewController and it does not work.
I tried
[self.parentViewController dismissModalViewControllerAnimated:YES];
// ... And also //
[self dismissModalViewControllerAnimated:YES];
Could someone point out why it does not work ?
All you have to do is pass a reference to the modally presented VC pointing on the VC that will present it modally.
Define a weak reference as a property in the UITabBarController subclass, and send a message to dismiss it when required.
For example using a property named mainViewController :
MySubclass *tbController = [[MySubclass ....];
tbController.mainViewController = self;
[self presentModalViewController:tbController animated:YES];
Then in MySubclass define
#property(assign) UIViewController *mainViewController;
and synthesize it, then when the tab you want gets selected :
[self.mainViewController dismissModalViewControllerAnimated:YES];
I think the 4th view controller (of the tab bar controller) is trying to get dismissed by the line
[self.parentViewController dismissModalViewControllerAnimated:YES];
Since this 4th view controller was not presented by any controller, this wont work.
And it is dismissing it's modal view controller by the line
[self dismissModalViewControllerAnimated:YES];
Since, this 4th view controller did not presented any view controller, this again should not work.
You want to dismiss the tab bar controller and not its 4th view controller.
Basically, you can get the reference of tab bar controller from the 4th view controller.
As, [yourFourthViewController.tabBarController.parentViewController dismissModalViewControllerAnimated:YES];
I am guessing this without actually trying. Let me know if this works.
If you have the UINavigationController as the parent controller then the following line will work for you.
[self dismissModalViewControllerAnimated:YES];
But here I think you have the UIViewController is the parent controller instead of the UINavigationController. So, You can do one thing when presentModalViewController.
if(objView == nil)
objView = [[YourViewController alloc] initWithNibName:#"YourViewController" bundle:nil];
UINavigationController *navigationController1 = [[UINavigationController alloc] initWithRootViewController:objView];
[self presentModalViewController:navigationController1 animated:YES];
Let me know if you need more help or any questions.

After dismissModalViewControllerAnimated: my tabbar disappears

I have an app which consists of three layers of view controllers: UITabBarController => UINavigationController => UIViewController. They are all generated in code rather than using IB. The tab bar is on the bottom as per the usual design guidelines. In my UIViewController I am using this code to present the modalViewController:
myModalVC = [[MyModalViewController alloc] init];
[self.navigationController presentModalViewController:myModalVC animated:YES];
This work fine and the modal view controller pops up and covers the entire screen.
However when a button is pressed within the modal view controller, I run this:
[self dismissModalViewControllerAnimated:YES];
And the modal view controller animates away. However I can see the original UIViewcontroller view but the tab bar disappears completely. I've googled a lot but I can't find anyone that has this same problem.
You should delegate your modal view controller to your parent view controller. [self dismissModalViewControllerAnimated:YES]; should be done by the delegate and not the modal view itself, parent view are responsible for dismissing the modal view.
Actually I found this by googling a bit more. I made my tab bar controller a property of the app delegate and when it presents the modal vc, it does this
UIApplication *myApp = [UIApplication sharedApplication];
noIBAppDelegate*appDelegate = (noIBAppDelegate*)myApp.delegate;
[appDelegate.tabBarController presentModalViewController:myModalVC animated:YES];
Then it dismisses it by this bit of code
UIApplication *myApp = [UIApplication sharedApplication];
noIBAppDelegate*appDelegate = (noIBAppDelegate*)myApp.delegate;
[appDelegate.tabBarController dismissModalViewControllerAnimated:YES];
This fixes the the tab bar disappearing.
Try
[self.navigationController dismissModalViewControllerAnimated:YES];
Thanks for your answer! I had the same problem, but I'm writing in Swift, so thought I'd include my solution that I figured out from looking at yours. I only had to use these two lines to fix the problem. Nothing else was needed.
tabBarController?.presentViewController(viewController, animated: true, completion: nil)
and
tabBarController?.dismissViewControllerAnimated(true, completion: nil)
I should also mention that the line: tabBarController?.delegate = self, is in the viewDidLoad function of my NavigationController.