I'm developing for iPad and I have the following problem:
I'm trying to show a modal with his own size and his own UINavigationController, I already done that, but when I present the modal with his UINavigationController, I get this:
I want the UINavigationController to fit to modal size. I leave the code of how I'm presenting the modal:
- (void)createANewEvent:(id)sender
{
AddEditEventViewController *addEditEventViewController = [[(ScheduleViewController *)self.viewContainer storyboard] instantiateViewControllerWithIdentifier:#"AddEditEventViewControllerID"];
addEditEventViewController.modalPresentationStyle = UIModalPresentationFormSheet;
addEditEventViewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:addEditEventViewController];
[self.viewContainer presentViewController:navigationController animated:YES completion:nil];
}
How I resize the modal:
AddEditEventViewController.m
// Resize the view
- (void)viewWillLayoutSubviews
{
[super viewWillLayoutSubviews];
self.view.superview.bounds = CGRectMake(0, 0, 548, 768);
self.view.superview.backgroundColor = [UIColor clearColor];
}
Hope you can help me!
Thanks in advance! :)
A view should never modify its superview's size or position.
The problem is that you're setting modalPresentationStyle on the root view controller instead of the view controller you're presenting, navigationController.
Delete:
addEditEventViewController.modalPresentationStyle = UIModalPresentationFormSheet;
addEditEventViewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
Delete the viewWillLayoutSubviews method you posted.
Add:
navigationController.modalPresentationStyle = UIModalPresentationFormSheet;
navigationController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
I would sub-class UINavigationController and implement the method:
preferredContentSize
Something like
- (CGSize) perferredContentSize {
return CGSizeMake(548,768);
}
That's all you should need to do to have properly resized modal views.
and have it return a CGSize structure with the size that you want the modal to be. This is the 'correct' way to do it per Apple documentation.
In conjunction, remove the viewWillLayoutSubviews method, that's just going to cause problems sometime in the future.
After [self.viewContainer presentViewController....] add:
navigationController.view.superview.bounds = CGRectMake(0, 0, 548, 768);
and get rid of your viewWillLayoutSubviews
Related
I am updating an old app to the new adaptive size way of doing things and having difficulty getting a popover with a navigation controller to work.
My goal: I want to be able to open a popover from a button when the app is either compact and regular horizontal. The popover has a tableview and uses a navigation controller to push view controllers when the user touches a row on the table. I can get the popover to open correctly, but I can’t figure out who to make the pushes work.
Here’s the code that opens the popover:
OptionsController *vc = [[OptionsController alloc] initWithNibName:#"OptionsView" bundle:nil];
vc.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popover = [vc popoverPresentationController];
popover.delegate = self;
[self presentViewController:vc animated: YES completion: nil];
popover.permittedArrowDirections = UIPopoverArrowDirectionUp; // change as necessary
popover.sourceView = self.view;
CGRect popoverRect = [self.view convertRect:[sender frame] fromView:[sender superview]];
popover.sourceRect = popoverRect;
This code correctly opens a popover in either compact or regular size.
In the OptionsController’s didSelectRowAtIndexPath method, I have this(controllersArray is an array of UIViewControllers, each of which corresponds to a row in the table):
UIViewController *nextController = [self.controllersArray objectAtIndex: [indexPath row]];
[self.navigationController pushViewController:nextController animated:YES];
All this executes, but no push occurs, so the next view never appears.
I clearly am not understanding something about using the UIViewController’s navigationController, or how to install a navigationController to make this work. After three or four days of digging around to try to understand how to make this work, I'd appreciate any insights, or links to documentation about how to do this. Thanks in advance.
Crud - this has a very easy answer. Just took me thinking a different way and digging through Larcerax's comments. Here's how to make this work:
OptionsController *vc = [[OptionsController alloc] initWithStyle:UITableViewStylePlain];
vc.title = #"Options";
UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController: vc];
nc.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popover = [nc popoverPresentationController];
popover.delegate = self;
[self presentViewController:nc animated: YES completion: nil];
popover.permittedArrowDirections = UIPopoverArrowDirectionUp; // change as necessary
popover.sourceView = self.view;
CGRect popoverRect = [self.view convertRect:[sender frame] fromView:[sender superview]];
popover.sourceRect = popoverRect;
The difference is that I create the UINavigationController in the usual manner...
UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController: vc];
...set the navigationController's presentation style to popover, then get the popoverPresentationController from the navigationController - before I was doing those two methods on the UIViewController.
nc.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popover = [nc popoverPresentationController];
Finally, I present the navigationController:
nc.modalPresentationStyle = UIModalPresentationPopover;
UIPopoverPresentationController *popover = [nc popoverPresentationController];
This approach presents a popover, in compact and regular horizontal sizes, that contains navigation controller functionality: just what I wanted.
Thanks again to Larcerax whose answer wasn't what I needed, but made me re-think what I was doing in a different way. As usual, StackOverflow comes through.
Here's what you should try. I use about 10-40 navigation controllers per app for the apps I work on and I've had this same sort of issue, I've not used popovers, but I've subclassed the crap out of navigation controllers and view controllers to have encountered your same problem. The thing is that if you do this:
UIViewController * ff = [UIViewController new]
[self presnetViewController:ff ... blah blah blah
There is apparently NO navigation system attached to the modal view controller and therefore you can't navigate to anything else, you can only close the modal and move on. So, this is what I do to resolve this and it works everytime, well it works everytime for UIViewControllers, give it a shot
see the following, it's not for popovers, but the principle is the same:
NSHTermsOfServiceViewController * pvc = [NSHTermsOfServiceViewController new];
UIBarButtonItem * backBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:#"exit-button"] style:UIBarButtonItemStylePlain target:self action:#selector(backerPressed)];
NSHNavigationController * ssf = [[NSHNavigationController alloc] initWithRootViewController:pvc];
[[pvc navigationItem] setLeftBarButtonItem:backBarButtonItem];
[[self navigationController] presentViewController:ssf animated:true completion:nil];
NSHTermsOfServiceViewController <== is a subclass of another subclass of a UIViewcontroller, it's basically a UIViewController on steroids, that's all
NSHNavigationController is a UINavigationController that is subclassed and pumped up on steroids for animations
The flow is this:
create a viewController
create a new UINavigationController
Set the view controller you created in step 1 as the root view controller of the navigation controller created in step 2
present the NAVIGATION CONTROLLER, not the UIViewController, you can present this navigationController from a view controller like so ..
v
[self presentViewController:ssf animated:true completion:nil];
or you can present it from the current view controller's navigation controller which is what I prefer, like so:
[[self navigationController] presentViewController:ssf animated:true completion:nil];
Your code, modified, the only problem is that I don't know if you can present a UIPopOverViewController by rooting it inside a navigation controller
OptionsController *vc = [[OptionsController alloc] initWithNibName:#"OptionsView" bundle:nil];
UIPopoverPresentationController *popover = [vc popoverPresentationController];
UINavigationController * stuff = [[NSHNavigationController alloc] initWithRootViewController:popover];
stuff.modalPresentationStyle = UIModalPresentationPopover;
stuff.delegate = self;
[self.navigationController presentViewController:stuff animated: YES completion: nil];
popover.permittedArrowDirections = UIPopoverArrowDirectionUp; // change as necessary
popover.sourceView = self.view;
CGRect popoverRect = [self.view convertRect:[sender frame] fromView:[sender superview]];
popover.sourceRect = popoverRect;
Yep, my bad, doesn't work for popover, I just tried it
So, with that said, is it absolutely necessary to use a popover? Why are you using this and now just a UIViewcontroller that you reconfigure to look like a popover and then you have what you need?
Here's this, I just tried it with the Ipad simulator, and it allowed a push, just as it should have.
NSHLoginViewController * pvc = [NSHLoginViewController new];
UINavigationController *navController = [[UINavigationController alloc]initWithRootViewController:pvc];
UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:navController];
UIView * stuff = [[UIView alloc] initWithFrame:CGRectMake(50, 50, 1000, 1000)];
[self.view addSubview:stuff];
[popover presentPopoverFromRect:[[self contentView] nameField].frame inView:stuff permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
this: [[self contentView] nameField].frame is just a uitextfield, nothing special, that's all, and the method above presented the login viewcontroller, when I put in my credentials, I pressed log in and it pusehed the next viewcontroller as it normally would, there's probalby something wrong with the touches being intercepted by your uitableview or whatever, perhaps not, but this method did work for me.
That simple example but that don't work;
I have ViewController where inside on NavigationConroller, then I want to add new ViewConroller with its self navigation controller.
In main viewController:
CustomViewController *vc = [[CustomViewController alloc] init];
NewNavigationVC *nav = [[NewNavigationVC alloc] initWithRootViewController:vc];
[self presentViewController:nav animated:NO completion:nil];
Two controllers has a background color clear, but still black color.
Navigation bar I can do clear, but not a view.
UPDATE:
if i change self.window.backroundColor to red for example, that work but not clear
UPDATE 2:
[self addChildViewController:vc];
[self.view addSubview:vc.view];
[vc didMoveToParentViewController:self];
and when I want to dealloc vc
[vc willMoveToParentViewController:nil];
[vc.view removeFromSuperview];
[vc removeFromParentViewController];
All work ok without navigation controller
A viewController's view's backgroundColor can't be clear (as in showing the previous viewController's view on the stack). Pushing or presenting a viewController will put the new viewController on the stack and hide the previous viewController completely.
If you want a clear backgroundColor on the view, you will need to either:
1) set the viewController as a childViewController of the previous viewController - then animate the transition yourself.
Or
2) transplant the viewController logic into the previous viewController and have a new uiview act as that view (you also need to animated the transition yourself).
The solution is as follows. For clear example we use tableViewController:
UITableViewController *modalVC = [UITableViewController new];
UINavigationController *modalNVC = [[UINavigationController alloc] initWithRootViewController:modalVC];
UIViewController *mainVC = [UIViewController new];
UINavigationController *mainNVC = [[UINavigationController alloc] initWithRootViewController:mainVC];
modalVC.view.backgroundColor = UIColor.clearColor;
mainVC.view.backgroundColor = UIColor.redColor;
mainNVC.modalPresentationStyle = UIModalPresentationCurrentContext;
[mainNVC presentViewController:modalNVC animated:YES completion:NULL];
The key feature is that you have to set modalPresentationStyle of presentingViewController to UIModalPresentationCurrentContext.
It works fine BUT without slide animation. You will get result immediately.
But you can still use "blood hack" to retain visual animation by successive presenting, dismissing and presenting again:
modalVC.view.backgroundColor = UIColor.clearColor;
mainVC.view.backgroundColor = UIColor.redColor;
[mainNVC presentViewController:modalNVC animated:YES completion:^{
[modalNVC dismissViewControllerAnimated:NO completion:^{
mainNVC.modalPresentationStyle = UIModalPresentationCurrentContext;
[mainNVC presentViewController:modalNVC animated:NO completion:NULL];
}];
}];
You basically need to tell the navigation controller to:
navigation.modalPresentationStyle = .overCurrentContext
In other words:
A presentation style where the content is displayed over another view controller’s content.
and that's it.
You can also make sure that:
navigation.view.backgroundColor = .clear
In Storyboard I have a TabBarController set as the initial view controller which connects ("view controller" relationship) to a Navigation Controller, which in turn connects to a View controller (iphone5VC).
How is it possible to programmatically change the view controller iphone5VC to iphone4VC? I have to decide which of iphone5VC or iphone4VC I will display depending on the phone size (iphone4, 5)
Thanks a lot to both of you. I finally decided to have only one Storyboard and use specific viewcontrollers on an adhoc basis when the 3.5 screen really needs to have a slightly different layout.
What I did is:
Added <UITabBarControllerDelegate> in the viewcontroller .h file from which the user presses on the TabBar to select the view.
Added in the viewdidLoad of the .m file:
UITabBarController *tbc = self.tabBarController;
[tbc setDelegate:self];
and then added in the same file:
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController
{
UIStoryboard *myStoryBoard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
CGSize result = [[UIScreen mainScreen] bounds].size;
if (tabBarController.selectedIndex == 1) // button # 2 pressed
{
if (result.height == IPHONE4_HEIGHT)
{
navController = (UINavigationController *) [myStoryBoard instantiateViewControllerWithIdentifier:#"ViewControlleriphone4"];
[self presentViewController:navController animated:NO completion:nil];
}
else
{
navController = (UINavigationController *) [myStoryBoard instantiateViewControllerWithIdentifier:#"ViewControlleriphone5"];
[self presentViewController:navController animated:NO completion:nil];
}
}
}
If I'm reading your question correctly, you want to include a "check" in your app where the result will set the size of your view controllers, and I'm assuming the layout of the views contained within, based upon which phone the user has. If I have this correct, check out this thread. Also, I would strongly recommend using Auto Layout, which will automatically place the views inside your view controller, regardless of screen size and layout (portrait/landscape).
If I'm not understanding your question, maybe paste a screenshot or some code. Hope this helps, good luck!
So if i am understanding you correctly, you really want to load a separate storyboard (and associated viewController)depending on the device type.
if so, what you need to do is have your main storyboard only contain the initial TabBarController, Navigation Controller, and a subclass of UIViewController we'll call dynamicViewController. The dynamicViewController will load the appropriate storyboard based on the device type. Obviously the various storyboards will need to exist (in the code below, the storyboards are named iphoneV4.storyboard and iphoneV5.storyboards)
So your dynamicViewController, simply needs the following -(void)viewDidLoad method;
- (void)viewDidLoad {
[super viewDidLoad];
UIViewController __unused * targetViewController = nil;
CGRect screenBounds = [[UIScreen mainScreen] bounds];
UIStoryboard *targetStoryboard = (screenBounds.size.height == 568) ? [UIStoryboard storyboardWithName:#"iphoneV5" bundle:nil] : [UIStoryboard storyboardWithName:#"iphoneV4" bundle:nil];
targetViewController = [targetStoryboard instantiateInitialViewController];
if (self.parentViewController && ![self.parentViewController isKindOfClass:UITabBarController.class] && ![self.parentViewController isKindOfClass:UINavigationController.class]) {
// replace self with the target view controller
[self.parentViewController addChildViewController:targetViewController];
[self.view.superview insertSubview:targetViewController.view aboveSubview:self.view];
[self.view removeFromSuperview];
[self removeFromParentViewController];
} else { // tab bars, nav controllers, and modal dialogs
[self addChildViewController:targetViewController];
CGRect f = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
targetViewController.view.frame = f;
[self.view addSubview:targetViewController.view];
}
}
How to I change the size of modal dialog? Why is this not working?
SlingDialogViewController *slingDialog = [[SlingDialogViewController alloc] init];
slingDialog.modalPresentationStyle = UIModalPresentationFormSheet;
slingDialog.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
slingDialog.view.superview.frame = CGRectMake(0, 0, 900, 700);
[self presentModalViewController:slingDialog animated:YES];
Do this:
SlingDialogViewController *slingDialog = [[SlingDialogViewController alloc] init];
slingDialog.modalPresentationStyle = UIModalPresentationFormSheet;
slingDialog.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentViewController:navController animated:YES completion:nil];
slingDialog.view.superview.frame = CGRectMake(0, 0, 900, 700);
slingDialog.view.superview.center = self.view.center;
It's important to call presentViewController:animated:completion first, from my experience at least.
The modal controllers in iOS have fixed sizes. I don't recommend trying to change them, it never works reliably.
A workaround is to implement it by yourself. A modal (presented) controller is a very simple functionality:
A view overlapping your presenting controller, so that it can't be clicked (and it is dimming the contents to make them look backgroundish)
A child view controller (and its view) added to your controller.
I have this:
And have this, when presenting modally:
Some code jsut before presenting webview:
webViewController.modalInPopover = YES;
webViewController.modalPresentationStyle = UIModalTransitionStyleCoverVertical;
And have this in webViewController's viewDidLoad template:
self.contentSizeForViewInPopover = CGSizeMake(320.0, 436.0);
I've looked for every frame of every role playing view, but frame.sizes are correct.
Anybody with similar experience with a solution for that?
First I assigned a transistion style to presentation style.
And that was the enum for fullscreen.
Having this in webViewController init...
self.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
self.modalPresentationStyle = UIModalPresentationCurrentContext;
...solved the problem.
I'll try to move it to -(void)awakeFromNib; to get rid of hardcoded size.