I have a tab bar controller and some nav controllers containing view controllers. In those view controllers I want to be able to have a timed banner that will animate up from the bottom of the view.
I started making a subclass of UIViewController with the images, but when I add it to my viewControlers it renders anything beneath it not clickable.
What is the best way of achieving this ad pop up and have it be reusable in all my viewControllers?
Make sure the main view of this ad popup is not of zero width or height - banners from many ad networks will actually be displayed if you add them to such a view, but won't be clickable.
Also make sure the ad view is in front (bringSubviewToFront:) and, if you have a tab bar, try adding it to the main app's window, rather then to the current view. Tab bar can play tricks with Action Sheets (basically some buttons will be unclickable) which are solved by adding the Action Sheet to the main window. This may help with your popup ad views, too.
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I am working on a tab bar application. Is there a way I can programmatically hide one view controller from the scroll down list and from the "edit" list (but still be able to pop it on screen with a certain action, i.e. by calling its tabbarcontroller index)?
The problem is that I have now so many viewcontrollers that completely fill the "edit" screen. So I want to hide some of them and be able to trigger the hidden ones trough some action performed on one of the visible ones.
Thanks
I would like to develop a ipad apps which has a menu at the top of the screen as well as at the bottom.
There are four buttons on the top of the screen, and there are 10+ buttons at the bottom tab bar, which can be scrolled horizontally.
How can I write the root view controller as a framework for this operation?
Should I customize the UIViewController class or UITabBarViewController?
Thanks
EDIT:
Sorry for being unclear. Let me restate my question.
Actually my app will have the following hierarchy.
'Front Page' is simply a page (view controller) for user to choose language. After choosing the language, 'Menu Page' view controller is displayed.
Starting from Menu page and ALL view controllers (VC) in below, the page layout is something like this.
As you can see, there are top menu and bottom menu. Clicking on the buttons the app will quickly jump to the corresponding view controller (3rd level in the tree, VC1,VC2,VC3 etc) . And for every view, there is a BACK button on every page, clicking which will back to the parent view controller.
I was thinking to implement this by using a tab bar view controller and a navigation view controller but I still do not have a clear idea how to implement this.
Or maybe should I just use the navigation view controller and hide the top tool bar except the back button, and display an overlay UIView as menu which is on top of all other UIViews.
Can somebody help me? Thanks.
Since this is the outermost container for my app I hope to do it properly at start..
Sorry for my long question.
If you really want to develop a framework for this logic .You need to create Manager, ViewController, View, DAO ,Model and other classes according to your needs.
I assume you want to add the buttons dynamically to the tabbar (and if it scrollable , it must be a scrollview).You can use Toolbar for upper view but then it won't be in sync with the bottom-view(visually).In that case you will have to create your own customized views to look like a tabbar.
The manager will basically keep a track of all the buttons and different states of events and action on the views and the same information can be accessed via a static method form the viewcontroller.
Well you have not detailed on your needs , so it's difficult to predict the entire architecture.
You need a container view controller to manage selection of VC's 1-4.
clicking which will back to the parent view controller
Parent view controller is used to mean the container vc in a container view controller scheme - I'm not sure that's what you mean in this comment. Where exactly does the back button go?
See this link for more info about container VC's.
https://developer.apple.com/library/ios/featuredarticles/ViewControllerPGforiPhoneOS/CreatingCustomContainerViewControllers/CreatingCustomContainerViewControllers.html
You should be able to embed a tab bar controller in the content view of the container VC. Should be able to but it might be really buggy if there is a lot of communication between the child vc's.
The hard part is the back button. Basically it must be a button that goes back to VC 1-4 depending on which section you are in. The easiest way to do it is to make sure that when you cycle view controllers, pass the back button information as to which VC is the current child so it knows which VC to navigate to when you press it.
I'm making an app with interface builder using storyboarding.
I want to have a tab bar where no item is selected. This can be accomplished by setting
TabBar.SelectedItem = null;
But if you try to do that, you get the following error:
'Directly modifying a tab bar managed by a tab bar controller is not allowed.'
So I can't use the standard UITabBarController. I've created a custom UIViewController, and added a UITabBar. Switching between tabs is working fine, and having no selection is also working as it should.
But I have no idea how to show my other view controllers from my custom view controller with the tab bar. Remember that I'm using interfacebuilder, so I can't just create my view controllers in code as new objects and add them to the view. (as suggested in UITabBar funcionality without UITabBarController)
So how do I show my own views without using the UITabBarViewController?
Edit: Still haven't found a solution, but I did a hacky fix. Simple create an other tab bar and place it on top of the original tab bar. Listen to those events and use SelectedIndex to change the view displayed. Then add some function that will select / deselect the items on your own tab bar.
In fact, even if you design your others UIViewControllers from IB, you can instantiate them from code. You'll probably have to play a bit with frame and autoresizing properties to make them fit the part of your main view you want them to display inside, but it's possible.
So, knowing that, a simple solution is to create a simple UIView (we'll call it 'tabFrame') in your main UIViewController, which fill the screen from the top of your UITabBar to the top of the screen; instantiate the UIViewController corresponding to your tabs and add their view as subview of tabFrame. Now you just have to catch item selection from tabbar to hide or show the desired subviews.
Hope I'm clear enough, else don't hesitate to question!
EDIT: pointed out this morning that in storyboarding context, you can effectively instantiate viewControllers / scene from code, but for not loosing designer settings it must NOT be done through directly calling their constructors, but through StoryBoard.InstantiateViewController("vc_identifier") calls, after having set identifiers to VCs in storyboard editor.
See http://docs.xamarin.com/ios/recipes/General/Storyboard/Storyboard_a_TableView for example
I want to use Tabview for my whole app. However in certain view, I have more operations than I can fit in the navigator bar. So I thought of using Toolbar but toolbar should be located at the bottom, right? Toolbar looks weird to be on top of the tabview, and hiding tabview for one view doesn't really make sense. I guess I can go with more buttons in the main view, but any other alternatives?
What can one use to add more operation(s) to tabview?
Thanks
In regards to keeping the UI simple, Apple recommends using a "More" button on the tab bar to fit additional functionality in on a tableview or some other NIB.
Additionally, you could always have another NIB that is hidden unless they hit a certain area or button and then it pops into view for controls, options, etc.
I am trying to set up a Modal View Controller, that that lies below a fixed toolbar. therefore the toolbar is supposed to stay on top while the modal view rolls in.
the Safari-App does that for example, when hitting the bookmarks-button. the toolbar stays, the buttons change..
I tried a couple of things like pushing the toolbar to the front and ended up not using the presentModalViewController method at all, and animating the new View manually into a subview instead. but that brought a couple of other issues along.
I'm not sure what you are saying, when you press add bookmark in safari, a new modal view shows with no tool bar. The navigation bar at the top is not a tool bar if that is what you mean. They are UIToolbarItem set into self.navigationItem.
All modal views I've seen are animated until they take up the whole of the screen. Those modal-like views that only scroll up to a certain point in some apps, are done by hand. Maybe you can cover those issues encountered when doing this by hand in another post?