I'm struck to implement it. I want to display a menu, which is already pushed into navigation controller. I know i have to use transition with animation method in which i have to increase the width from 0 to required value. But this is not helpful coz navigation controller takes care of presenting VC when we pop it. So how to implement it in ios?
Use a separate UIWindow for the menu, so you do not interfere with the UINavigationController.
You can have the menu behind your content window and move the content window to make the menu visible.
Related
In the youtube app there's a possibility to collapse video into a small preview window with a playback and controls while you navigating in the different parts of the app. By tapping on the window you can always switch to full screen mode again.
I wonder: what't the best approach to implement similar functionality? For now I see few options but I'm not very well aware of the implications of these options.
Note: I have an iPhone tabbar based app.
Create a popover modal view controller, that is presented on top of current navigation stack in a current tab
Create a view and stick it to the bottom of the screen.
Create a view in bounds of a tabbar controller
Create a modal view controller embedded in tabbar controller.
Just from the list I suspect that using a specialized UIView (2) would be the worst possible way to do this. But I don't know about the rest. Any advice would be greatly appreciated.
I have a small UI dialog box (UIView) I will be showing at one point (in fact a pop-up over a mapkit map. In this dialog I wish to have a navigation bar at the top that let's a user step through different data item (so a Back/Next set of buttons in the navigation bar).
Question: Should I look to try to utilise an IOS UINavigationBar and/or UINavigationController etc to build this little pop up? Or should I just build this in XCode by hand (e.g. draw a navigation bar and put normal buttons in myself). [Also if you can let me know why re your response so I can learn].
Background: At the moment I have an XIB dialog box in XCode which I have size set to "freeform", and then I instantiate this using:
calloutView = NSBundle.mainBundle().loadNibNamed("GCCallout", owner: self, options: nil).first as! GCCallout
I would say, it depends on your dialog box requirement
You mentioned, that you need back and next button in navigation bar, as I understand, you simply want to manipulate the data in dialog box or do some operation using it.
If you would want series of view controllers inside dialog box, pushing after each other, then only navigation controller would be good to use in your dialog box
Otherwise, using it simply for navigation bar would be overkill.
UINavigationControlker is a Container Controller and is optimized for keeping view controllers in stack and pop them up.
I suggest, go for custom UIView from xib or if dialog box have much code to handle than, implement your dialog box in view controller, and add it as child view controller.
I am a newbie to IOS programming and currently i have a tab bar application with two tabs. I have two questions.
The first tab shows a map, imagine it with some pushpins. There is a button on the navigation bar and when this is clicked i want the map view to to move out and a list view to come in. You can see the UI from the image. The button is called list.
Now when i click list I want this view to go away and the list view to come in. So here are my questions ?
1) How do i do this ? I tried the navigation model but i don't want that because I do not want a back button. I tried to make two different views and just dragged the button to that view but the app crashes. I just want the list button on the nab bar and when clicked the view changes to the list view and the button text changes to map. So now if I click the button again it should go back to the map view and the button changes to list.
2) How do i achieve the animations for this ? Ive seen some app where the page flips around and I've seen some options like reducing the opacity etc but I want to achieve the flip animation.
Thank You for any help I get. I really appreciate it.
Interface Builder can do most of this. Hold down the control key and drag from your map View Controller's UIBarButtonItem titled "List" to your list View Controller, then choose the Action Segue "modal". An arrow appears representing the segue; click on it and use the Attributes Inspector to change the Transition to "Flip Horizontal". Here's a video
Or, you could do this programmatically with presentViewController:animated:completion.
Now to get back to the map from the list, I believe that must be done programatically. Create a method that calls dismissViewControllerAnimated:completion: and make your list View Controller's UIBarButtonItem titled "Map" trigger it.
After reading your comments, I am wondering... if the structure of your app is logically a tabbed app structure (as indeed you refer to it as a 'tab bar application'), shouldn't you consider using the UITabViewController instead of a NavigationController? That is what it is designed to do, after all.
If you do use a TabViewController you should reconsider your desire for flip animation, as that doesn't really make UI-sense for tabs. If you can dispense with the flip animation, TabViewController could be a good way to go and you should at least experiment with that before dismissing the idea. It is also designed to grow... you can incorporate any number of tabs in a tab bar. Check out the apple docs (with pictures!)
You will notice that tabs are at the foot of the screen, whereas your 'tab' navController buttons are in a navbar at the top of the screen. This also helps as your app grows, as it is straightforward - from a UI design point of view and programmatically - to incorporate navControllers as navigation tools within individual tabs. For example, if your map/list flip routine does indeed make sense for this part of you app, you can keep this as a single tab (in it's own navigationController) and add other tabs for other parts of the app...
update
From your comment, you are saying that you are interested in the navController-inside-tabBarController setup. In this case here are some ways to get flip transitions AND no back button..
(1) modal presentation
The easiest way to get what you want is to set up one of your viewControllers (say the map view) to present the other one (the list view) modally.
If in the storyboard:
embed your mapViewController in a navController with a navbar button for navigation to the listView as in your picture
add your listViewController to the storyboard and embed it in it's own navContoller (not the mapViewController's navController). Drag a barButtonItem to this navController and wire it up to an IBAction in listViewController
CTRL-drag from mapViewController's 'list' button to the listViewController to create a segue. Select the segue and in the attributes inspector set the segue type to 'modal', with transition 'flips horizontal' and 'animated' checked. Give it a name in case you want to refer to it in code.
in the listViewController's IBAction add this:
[[self presentingViewController] dismissViewControllerAnimated:YES completion:nil];
That should achieve your result. You can use the completion block to send information back from the list view to the map view, and/or set the map view as the listView's delegate.
If you are not using the storyboard check this apple guide
Presenting View Controllers from Other View Controllers
especially "Presenting a View Controller and Choosing a Transition Style".
There is one catch with this approach - when the presented view flips onto the screen, the entire previous view, including the tab bar, is flipped out of the way. The idea is that this is a modal view which the user is required to dismiss before doing anything else in the app.
(2) push/pop in a single navController If this does not suit your intent, you can navigate using a single NavigationController with push and popping of views, and you can hide the back button ... but you really would need to keep the back button functionality as you do want to go back to the mapView, not on to a new map view.
To hide the back button try:
self.navigationItem.hidesBackButton = YES
in the uppermost viewControllers' viewDidLoad
Then you can add a barButtonItem in the xib/storyboard, with this kind of IBAction:
[self popViewControllerAnimated:NO]
or
[self popToRootViewControllerAnimated:NO]
You would have to construct the flip animation in code as it is not supported as a built-in with UINavigationController (best left as an exercise for the reader!)
(3) swapping views in a single viewController As ghettopia has suggested, you could use a single viewController inside a navController (or with a manually place navBar) and swap two views around using the UIView class methods
transitionFromView:toView:duration:options:animations:completion
transitionWithView:duration:options:animations:completion.
This could be a good simplifying solution as your list and map are essentially two views of the same data model.
i am making one iOS tabbar application in that i have put 4 different tabs and whenever i click on 1 st tab and load another view after clicking of the first tab. After that when i press back button then tabbar is not displaying .So that i want hint that how can i show that
back the tabbar when we move from one tab from another and yes how i can use consistent the tabbar in whole application can you just guys help me on this i am new to iOS development.
here i am put the screen shot ...
here first screen is this one..
when i tap the video button that are first in the view then another window open
which are as under and see the tabbar is not there...
when in video controller there is tabbar is there but i drag and connect to that then tabbar is disabled
Looking at your screen snapshots, do I correctly assume you're attempting to transition to the "Videos" scene by touching the big "Videos" button in the center of the "Home" scene (rather than touching the tab bar button at the bottom of the screen, which I assume works fine)? If that's the case, you need to have your button tell the view controller's tab bar controller that you want to change the index of the tab bar, and it takes care of it for you. You cannot do the transition using a segue (or at least not without a custom segue, which is even more complicated than the procedure I outline below). If you're changing the view some other way (e.g. using a standard segue or using presentViewController, pushViewController programmatically, etc.), your tab bar can disappear on you.
You later said:
when in video controller there is tabbar is there but i drag and connect to that then tabbar is disabled
Yes, that's true. You cannot use a segue from one of your big buttons to one of the tabs in your tab bar. (Or technically, if you wanted to use a segue, it would be a custom segue which would do something very much like my below code, though perhaps a tad more complicated.) So, rather than using a segue for your big button, you need to write an IBAction (connected to the big Videos button on the Home scene), that tells the tab bar to change its selection:
- (IBAction)clickedVideosButton:(id)sender
{
[self.tabBarController setSelectedIndex:1];
}
A couple of comments:
My answer was predicated on the assumption that your tab bar works as expected when you tap on the buttons of the tab bar, itself. If you tap the buttons at the bottom of the screen, do you transition to your other views correctly and preserve the tab bar? If so, my answer above should solve your issues in getting the big buttons to work. If not, though, then the problem rests elsewhere and you need to show us your code that might account for that (either you're something non-standard in the UITabBarControllerDelegate methods, or your viewDidLoad of the view is doing something nonstandard).
If I understand your user interface design right, you have the tab bar at the bottom as well as the big buttons in the middle, which presumably do the same thing. That is, no offense, a curious user interface design (duplicative buttons, requiring extra tap on a button, etc.). You might want to choose to either use either big buttons (in which you can retire the tab bar, eliminate the IBAction code I've provided above, and just use a nice simple navigation controller and push segues, for example), or just use the tab bar (and lose the home screen, lose the big buttons, etc.).
You also made reference to "press back button", and I don't see any "back" button on any of your screen snapshots. Do I infer that you have a navigation controller and you're doing a pushViewController or push segue somewhere? If you're doing something with back buttons, you might need to clarify your question further.
My iOS 5 app uses storyboarding with a UITabBarController. There are three "tabs" each displaying a view controller which has been linked using a relationship back to the UITabBarController. At the moment each view controller appears when you tap the relevant tab, as expected. However, for a more gracious transition I would like to slide the view controllers on and off screen.
By way of example, if I am currently on Tab 0 and then select Tab 1 the view controller on screen (for Tab 0) should slide off to the left-hand side of the screen, and the new view controller (for Tab 1) should slide on from the right-hand side of the screen.
I have been able to achieve this behaviour using a custom UIView as the tab bar but would like to know whether this is possible with a custom segue in storyboarding, as that would certainly save a lot of coding (and also would keep things a fair bit neater in the project)?
Thanks in advance for any assistance.
I am trying to do the same thing.
Unfortunately I think the relationship segue does not allow any customization as it just connect tab bar and the tab bar items together, and not a transition.
My guess is we have to do the transition ourselves when the view appeared.