I have created an iPhone application based on an OpenGL view. Now I
would like to show a "settings" form. Since my code runs in UIView, I have no pushViewController. How do I show a view controller on screen?
Thanks!
You can do this in one of two ways:
You can create a new view hierarchy, and then add it as a subview of your UIWindow when you want to show preferences. When you're done with your prefs, you can animate it out and then remove it as a subview.
You can switch to a UINavigationController/UIVIewController based hierarchy, and hook your current OpenGL/UIView to a UIViewController's view outlet. Then you can use all the regular UINavigationController based navigation stuff.
Related
I want to create an ios app in which I want to flip uiviewcontrollers. I want to use swipe gesture to change between uiviewcontrollers.
I have 2 uiviewcontrollers, in which I want to set one view controller to the top of uiviewcontroller cover and one view controller to the bottom ,and then make an animation that let a top uiviewcontroller slide to left to out of screen and the bottom uiviewcontroller will appear step by step.
What is the Best way to do this ?
Create a RootViewController with container views.
Add the child view controllers to the root view controller.
Add gesture recognizers to manipulate the views.
Use the "view controller containement" a feature of iOS5, to make managing the lifecycle calls easier.
As Jasper wrote you should create new UIViewController - "root" which will hold the child UIViewControllers- "bottom" and "top". It will also display their views. To achieve an effect that "bottom" is underneath, you should add its view as a subview first.
Take a look at http://developer.apple.com/library/ios/#samplecode/PageControl/Introduction/Intro.html It might give you an idea how to handle with child UIViewControllers
Im writing an application which the main view controller is a UIViewController. It has some icons in a grid and I want to dismiss (sliding down) this grid when one of the icons is clicked. This I've done already. The problem is: when the grid is dismisseed I want another View to come from the top of the screen. This view is in this same root view controller. But I want to display the content of other view controllers in this view. For example: I want this view to show a UINavigationController with a UITableView inside it, so the user can navigate through TableViews.
I'm doing this:
HorariosViewController *horarios = [[HorariosViewController alloc] init];
[vuashView addSubview:horarios.view];
HorariosViewController is a UINavigationViewController. It shows me only a blue NavigationBar and changes like self.navigationItem.title = #"Title" won't work.
Thanks!
You can show another view controller's views as subviews but their outlets and actions remain linked to their original view controller unless you write code to make new connections, so self.whatever shouldn't be expected to affect the other view controller's properties.
(Also, if HorariosViewController is a UINavigationController, it shouldn't be created as a UIViewController.)
One approach is to have the navigation controller already there, with the icon grid presented modally on top of it. (you can set the view up this way without animations, so the user doesn't see the navigation controller underneath).
Then, when it's time for the grid to go away, it can call dismissModalViewController on itself with animation.
Alright, this seems simple enough but I haven't found much documentation or posts regarding this. Basically, I want to have a completely custom tab bar at the bottom of my app. Being new to iPhone dev I thought I could do the following:
Place custom images on bottom of
screen to act as tab buttons.
Create a UIView (lets call it
"ContentView") to fill the rest of
the screen that will display the
appropriate tab's NIB. This
"ContentView" is inside the main
UIView for the NIB.
Hook up image "press" actions to the
controller managing all this.
I'm not sure how I would go about loading the appropriate NIB into the "ContentView" with this method though. From the "Touch Up" action method in the controller can I dynamically load a NIB into that "ContentView" UIView?
Something about this whole thing makes me uneasy.
Is there a better way?
To solve your problem I would create a nib with a UIView and its associated content in it. Connect the nib to a UIViewController. This will be the content of each tab. Create as many of these UIView-UIViewController combination as needed.
When the user touches a tab, create and load the UIViewController from the nib using
– initWithNibName:bundle:
Add the UIView in the nib to the main content view as a subview. Use
– addSubview:
As the user presses other tabs load the other nibs into memory and add their UIView into the main content view as a subview.
If a view is already in memory you can show and hide subviews with the following methods.
– bringSubviewToFront:
– sendSubviewToBack:
I think that would work.
You can solve this by,
either make different views with same tab bar image and custom button(load view on IBAction for button click:toucp up inside) or you can make different views for the same view(so you can hide views and show only one view at a time accordingly).
and you can load view (if you app is view based then add other views on window otherwise for navigation based app you need to pushViewController of navigation controller.
This is a tricky task but you need to handle this.
I am creating a game using OpenGLES.
Game consists of a view controller and the EAGLView.
I have created another view controller that I want to handle the extra view that go ontop of the EAGLView so things like menu and options.
I have a call from the EAGLView view controller to the extra view controller that adds an IBOUTLET UIView to the appdelegates window however its not appearing. The methods being called but no view is being added.
Probably a really easy and stupid question but I cant work it out.
Thanks for any help in advance
Ok I have done it a different way.
I use a view Controller called GameViewController to load up and i add its subview to the window in the appDelegates applicationDidFinishLaunching method
Then i call a method to add another view controllers view (my open gl view) to the subview. This means I can then put other views over the top.
I don't know why i didn't do this before to be honest
Thanks for your help
Can you be more specific with this sentence:
I have a call from the EAGLView view controller to the extra view controller that adds an IBOUTLET UIView to the appdelegates window however its not appearing.
One approach is to use navigation controller that could be initalized with EAGLView controller as root. So, you can push and pop in navigation controller another view controller that handles the game menus.
Another approach is to present menu as modal view controller. This can be invoked with presentModalViewController: in current EAGLView controller.
I have an app built from the UITabBarController starter project. The first tab is part of the main.xib that contains the tab bar. I would like to slide a view up from the bottom on top of that tab's view that only covers part of the screen. My understanding is that you can only cover part of the screen if you make the top view non-modal, but I don't see a way to do that without a NavigationController.
How can I do this?
you can add a UIView as a subview to the current view, and then animate its appearance into the screen using animation blocks, or Quartz or however you would like.
presentModalViewController: is actually a method that belongs to UIViewController, the superclass of UINavigationController, so you can use it from any view controller, not just a navigation controller.
Have you tried using a UIActionSheet? That's an easy way to get a view with a few buttons for user input to slide up and only cover the bottom portion of the current view.