I was having memory management issues, finally found out the problem, I keep instantiating new view controllers. When the app launches it goes straight to the FirstViewController which is an element inside of UITabBarController in the storyboard.
I then show FilterViewController with this method:
- (IBAction)searchOptions:(id)sender {
FilterViewController *ctrl = [[FilterViewController alloc] init];
[UIView transitionFromView:self.view toView:ctrl.view duration:1
options:UIViewAnimationOptionTransitionCurlUp completion:nil];
self.filterViewController = ctrl;
[self.navigationController pushViewController:self.filterViewController
animated:NO];
}
Which works fine and brings up FilterViewController which has its own .xib, so it is not in the storyboard.
Now when trying to pop back to FirstViewController I use this method:
- (IBAction)backToMap:(id)sender {
// i used the below when trying to push another view controller
/*UIStoryboard *storyboard = [UIStoryboard storyboardWithName
:#"MainStoryboard" bundle:nil];
FirstViewController *fvc = [storyboard
instantiateViewControllerWithIdentifier:#"FirstViewController"];
fvc.modalTransitionStyle = UIModalTransitionStyleCoverVertical;*/
[self.navigationController popViewControllerAnimated:YES];
}
However it doesnt do anything. Nothing at all, I cant see what is wrong here?
popViewontrollerAnimated is only used when you have pushed your view controller onto a navigation stack, so it won't do anything here unless there is one in your project.
When you use transitionFromView... you are replacing your current view with the new view so you will need to call it again to get back to your old one.
Related
I have created storyboard which I want to open on top of another view or in childView so that when I close or destroy this view of storyboard the earlier view on which the storyboard is opened remains the same.
When I run the following code:-
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main_iPad" bundle:nil];
ViewController *detailViewController = [storyboard instantiateViewControllerWithIdentifier:#"neolick"];
[[UIApplication sharedApplication].keyWindow setRootViewController:detailViewController];
First, the storyboard opens but I don't know whether it opens on top of previous view or it destroys the previous view & then open.
Second, the functions needed on that storyboard runs automatically which is as I want but how these things are working.
If anyone can help me understand the above code and its working.
NOTE: I cannot call the earlier view again in same state because of some reason.
Thanks in Advance!!
Here you are setting root view controller
it will not keep your back screen as it is what you want
If you want to keep current screen and show other screen on that
you have two approaches
1) Present ViewController
2) Push View Controller
1) Present ViewController
for this you can present your screen on top of other screen which is visible
for example
- (IBAction)btnNextTapped:(id)sender {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main_iPad" bundle:nil];
ViewController *detailViewController = [storyboard instantiateViewControllerWithIdentifier:#"neolick"];
[self presentViewController:detailViewController animated:true completion:nil]
}
2) Push View Controller
For that you need NavigationController and need to push your ViewController from current visible screen
i.e
[self.navigationController pushViewController:vc animated:true];
EDIT
as per discussion you need to find current top view controller then you should present it
Add this method below your method
- (UIViewController*) topMostController
{
UIViewController *topController = [UIApplication sharedApplication].keyWindow.rootViewController;
while (topController.presentedViewController) {
topController = topController.presentedViewController;
}
return topController;
}
And Replace this method with code
- (void)goToNewPage:(CDVInvokedUrlCommand*)command
{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main_iPad" bundle:nil];
ViewController *detailViewController = [storyboard instantiateViewControllerWithIdentifier:#"neolick"];
[[self topMostController] presentViewController:detailViewController animated:true completion:nil];
}
I added one ViewController to my project and created one class.
After I bind this class to my ViewController.
In another controller I have method:
- (IBAction)login:(id)sender {
// How here I can do redirect to controllerViewController
}
There are two ways to push view controllers in the application.
1) by Segue
2) By View controller identifier
1) By Segue :
[self performSegueWithIdentifier:"SegueIdentifier" sender:self];
2) By View controller identifier :
Yourclassname *gotoYourClass = [self.storyboard instantiateViewControllerWithIdentifier:#"ViewControllerIdentifier"];
[self.navigationController pushViewController:gotoYourClass animated:YES];
- (IBAction)login:(id)sender {
ViewController *vc = [[ViewController alloc]initWithNibName:#"ViewController" bundle:nil];
[self presentViewController:vc animated:YES completion:nil]; }
In the storyboard give your view controller an identifier (under the Attributes Inspector) then use the following code, to bring that view forward.
IF YOU WANT TO USE PUSH THEN USE THIS CODE
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"STORYBOARDNAME" bundle:nil];
UIViewController *vc = [mainStoryboard instantiateViewControllerWithIdentifier:#"VIEWCONTROLLERIDENTIFIER"];
[self.navigationController pushViewController:vc animeted:YES];
IF YOU WANT TO PRESENT THEN USE THIS CODE
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"STORYBOARDNAME" bundle:nil];
UIViewController *vc = [mainStoryboard instantiateViewControllerWithIdentifier:#"VIEWCONTROLLERIDENTIFIER"];
[self presentModalViewController:vc animated:YES];
Note: In UIViewController please enter your view controller name which you want to push into another view.
If you want to comeback to the current ViewController later then use Navigation ViewController or else just use the presentedViewController of self(your current viewController)- no going back business, like they have previously illustrated.
For a simple block of execution(demo or practice) it's all the same but for a project application it completely matters to make the correct choice.
In my app after pressing the login button in my loginViewController, it push to front viewController of my SWRevealViewController. In my RearViewController I have the sign out button. When I press it it should pop to the back viewController again (LoginViewController). But even though I set the button click event like this it doesnt navigate to the loginViewController.
-(void)signOutClick :(id)sender
{
[self performSelectorInBackground:#selector(moveToLoginView) withObject:nil];
}
-(void)moveToLoginView
{
[self.navigationController popToRootViewControllerAnimated:YES];
}
But when I swipe the view it gose to the back view.I want to disable that swipe feature to the back view. And I want to go to the back view when click on the sign out button in my RearViewController. How can I do that? Please help me.
Thanks
I am not sure but instead of using
[self.navigationController popToRootViewControllerAnimated:YES];
try using,
[self.navigationController popViewControllerAnimated:YES];
And to stop swipe gesture you can use code like,
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
self.revealViewController.panGestureRecognizer.enabled = NO;
}
You need to reset the top view controller if you want to perform these kind of actions off of a click. E.g.
get an instance of the ECSlidingViewController
ECSlidingViewController *slidingController = self.slidingViewController;
get the view controller you wish to be on the top
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UIViewController *vc = [mainStoryboard instantiateViewControllerWithIdentifier:#"mainViewController"];
UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController:vc];
set the topViewController property
slidingController.topViewController = nc;
[slidingController resetTopViewAnimated:NO];
In my AppDelegate I have the following code which is executed after receiving a notification:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UINavigationController *navigationController = (UINavigationController *)[storyboard instantiateViewControllerWithIdentifier:#"VideoPlayback"];
VideoPlaybackViewController *videoPlaybackViewController = (VideoPlaybackViewController *)[navigationController topViewController];
videoPlaybackViewController.publishing = YES;
[(UINavigationController*)self.window.rootViewController pushViewController:navigationController animated:NO];
That successfully brings up the new ViewController and apparently adds it to the navigation stack, since I can use the back button on the navigation bar to go back and subsequently dismiss the view controller.
The problem is, I don't want to use the navigation bar. In fact, I would like to hide the back button. Unfortunately, when I try to dismiss the viewcontroller using the method(s) it should use, it does nothing. I've tried using both of these to dismiss the view controller:
[self dismissViewControllerAnimated:YES completion:nil];
[self.navigationController popViewControllerAnimated:YES];
What am I doing wrong? Thanks.
You're trying to push a navigation controller into a navigation controller, which won't end well.
[(UINavigationController*)self.window.rootViewController pushViewController:navigationController animated:NO];
probably needs to be changed to:
[(UINavigationController*)self.window.rootViewController pushViewController:videoPlaybackViewController animated:NO];
I'm new on IOS platform and after study a little about how does it works, i had one doubt about how to call a new class/view and overlay the current view when a button is pressed. In android i do:
Intent intent = new Intent(a.class, b.class);
startActivity(intent);
Searching on internet, i noticed that i have to use navigation bars to do it. I start an app with tab bar controller and putted a navigation controller. I used the code below:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Storyboard" bundle:nil];
UIViewController *myController = [storyboard instantiateViewControllerWithIdentifier:#"Dicas"];
[self.navigationController pushViewController: myController animated:YES];
and the return:
There is a way to overlay the current view? I always have to use navigation bars to call another class (use bottom e upper controllers will make my app ugly)?
To hide the navigation bar:
[[self navigationController] setNavigationBarHidden:YES animated:YES];
To hide tab bar:
yourViewController.hidesBottomBarWhenPushed = YES;
You can also call another viewController by using presentViewController function of a viewController class.
[self presentViewController: myController animated:YES completion:nil];
As you said u want to overlay your current view so not sure but You can show your view controller using model view like this
yourViewController *secView = [[YourViewController alloc] initWithNibName:#"YourViewController" bundle:nil];
[secView setModalPresentationStyle:UIModalPresentationPageSheet];//u can use different UIModalPresentationStyle
[secView setModalTransitionStyle:UIModalTransitionStyleCoverVertical];
[self.navigationController presentViewController:secView animated:YES completion:nil];
Above one will show your view controller over existing view controller, once presented you need to make provision to dismiss this modal view.
Simple way to present new class or ViewController like this..
ViewController *view = [self.storyboard instantiateViewControllerWithIdentifier:#"ViewController"];
[self presentViewController:view animated:YES completion:nil];