I have a tabbar controller which includes six tab bar item. But the problem lies in the more button appears and the whole view get distract due to it. So how do i set all the six controller in the tab bar controller. I dont want to use any customized class.
If i creating a view manually in xib file. Then the tabbar is allowed having six item. Please see the attached images
In above image you can see a favourite tab bar controller which is created manually in xib, so if that is valid. Then how can i create like six tabbaritem in the uitabbarcontroller defined in app delegate. Please reply me back and dont give suggestion for using external classes or customize class.
Five is the most it will display. The standard icons won't fit otherwise. From the documentation:
The tab bar has limited space for displaying your custom items. If you add six or more custom view controllers to a tab bar controller, the tab bar controller displays only the first four items plus the standard More item on the tab bar. Tapping the More item brings up a standard interface for selecting the remaining items.
More than five will show in interface builder because it has no other way of showing you which items are linked to the controller.
So, at risk of a downvote, you'll have to use a custom container that can show more than five options.
Related
I need to select a bottom horizontal list of items. and the data should be changed for each item for selection(like bottom navigation)
I tried with collection view but it's not working
It sounds like what you are looking for is the UITabBarController.
The tab bar interface displays tabs at the bottom of the window for selecting between the different modes and for displaying the views for that mode. This class is generally used as-is, but may also be subclassed.
Each tab of a tab bar controller interface is associated with a custom view controller. When the user selects a specific tab, the tab bar controller displays the root view of the corresponding view controller, replacing any previous views.
I've searched for a suffice answer to this question but I've been unable to come across one that fits my dilemma. How do I implement a tab bar within my already single view application? My storyboard consist of four view controllers, a navigation view as the initial view, and 3 following table views. Now i know the order of containment must have the tab bar controller first so i embedded my navigation controller with a tab bar controller. doing this has given every view controller on my storyboard a dark gray tab bar silhouette on the bottom of each view, so i have no way of manually editing and selecting my tab bar views.
My goal is to assign my third table view controller in my storyboard as the first tab bar item. how should i do this programmatically? the first view controller acts as the default for the tab bar item. how do i change this programmatically?
here is screenshot of my storyboard:
https://41.media.tumblr.com/c3146efea93d2aeeccdcc55a6104674d/tumblr_nqqlieVI8f1tupbydo1_1280.png
here is the documentation provided by apple on the correct coding to properly assign and configure your views but its very depreciated:
https://40.media.tumblr.com/172a516075baed44cde104abf50d91aa/tumblr_nqqmngJLoA1tupbydo1_1280.png
I'm trying to create a tabbed application with navigation elements inside the tab bar, as seen in the picture below (the red bar) using Swift/XCode 6.2. Basically those three icons in the middle will direct the user to different view controllers. The other two icons would be context-based. For example, on a table view page you would see the menu icon and add new icon as seen in the image. However, clicking on a row would change the menu icon to a back icon, and the add icon to something else.
That's the general idea, but I'm having a very hard time implementing something even close to this. The first issue is that whenever I embed a view in a Tab Bar Controller, I can't move the tab bar to the top. However, when I create a custom UITabView in a View Controller, Control + Click and dragging a Tab Bar Item to another view doesn't create a segue. I haven't even begun to tackle having the navigation elements inside the bar.
I guess what I'm asking is just for a little guidance on what route to take to tackle this. I'm assuming I can't use a Tab Bar Controller or Navigation Controller because it doesn't seem like I can customize them all that much. So custom Tab Bar and Navigation Bars, and then implemnt the segues and button changes programmatically?
Thanks.
I will try to guide you from an architectural perspective (so you won't find much code below).
Using a UITabBarController
In order to achieve what you are suggesting, you are right you cannot use a UITabBarController straight away, among several reasons, the most immediate one is that they are meant to be always at the bottom and you want it in top (check Apple's docs). The good news is that probably you don't need it!
Note: If you still want to go with a UITabBarController for whatever reason, please see #Matt's answer.
Using a UINavigationController
You can use a UINavigationController to solve this task, since the UINavigationBar of a UINavigationController can be customized. There are multiple ways on how you can organize your view's hierarchy to achieve what you propose, but let me elaborate one option:
To customize a UINavigationBar's to add buttons, you just need to set its navigationItem's title view:
// Assuming viewWithTopButtons is a view containing the 3 top buttons
self.navigationItem.titleView = viewWithTopButtons
To add the burger menu functionality on a UINavigationController you can find several posts on how to do it and infinite frameworks you can use. Check this other SO Question for a more detailed answer (e.g. MMDrawerController, ECSlidingViewController to mention a couple).
About organizing your view hierarchy, it really depends on if when the user taps one of the main top buttons, it will always go to the first view controller in the new section or if you want to bring him back to the last view in the section where he was.
3.1 Switching sections displays the first view of the new section
Your app's UIWindow will have a single UINavigationController on top of the hierarchy. Then each of the 3 top buttons, when tapped, will change the root view controller of the UINavigationController.
Then, when the user changes section, the current navigation hierarchy is discarded by setting the new section view controller as the UINavigationController root view controller.
self.navigationController = [sectionFirstViewController]
3.2 Switching sections displays the last displayed view in the new section
This will require a slightly modified version of the above, where your each of your sections will have its own UINavigationController, so you can always keep a navigation hierarchy per section.
Then, when the user taps one of the top buttons to switch section, instead of changing as previously described, you will change the UIWindowroot view controller to the new section's UINavigationController.
window.rootViewController = sectionNavigationController
Using a custom implementation
Of course, the last and also very valid option would be that you implement yourself your own component to achieve your requirements. This is probably the option requiring the biggest effort in exchange of the highest customizability.
Choosing this option is definitely not recommend to less experienced developers.
I'd like to take a stab at this--I think it is possible to use a tab bar controller here.
Your topmost-level view controller will be a UITabBarController with a hidden UITabBar.
Each tab is contained in a UINavigationController.
All view controllers in the navigation controller will be a subclass of a view controller (say, SwitchableViewController).
In SwitchableViewController's viewDidLoad, you set the navigation item's title view (i.e. whatever's at the center; self.navigationItem.titleView) to be the view that holds the three center buttons. Could be a UISegmentedControl, or a custom view.
Whenever you tap on any of the buttons, you change the topmost UITabBarController's selected index to the view controller you want to show.
Issues you may encounter:
Table views inside tabs will have a scrollIndicatorOffset at the bottom even if the tab bar is hidden.
Solution: Play around with the automaticallyAdjustsScrollViewInsets of the tab bar controller, or the inner view controller. https://stackoverflow.com/a/29264073/855680
Your title view will be animated every time you push a new view controller in the navigation stack.
Solution: Take a look at creating a custom transition animation for the UINavigationController.
I'm quite new to Swift and am working on an app where I'm not sure how to setup the navigation. It works with a tab bar, except that I want the bar to display nomatter what view is being displayed. There are 4 "main" views that the user should always be able to get to. The problem comes when I get into subviews of one of those main views.
I have the tab bar with the 4 icons for the primary views. It's currently displaying the "activity list". When the user clicks on an activity, it will display a list at the next level of detail. However, that view is not one of the primary ones that is represented in the tab bar, so it has no tab bar and no way to transition directly to one of the primary views. You have to back your way out to the Activity list before you can select a different tab.
Say that the main views (represented in the tab bar) are A, B, C, and D. I want to be able to display the same toolbar on all sub-views (e.g. C-1, C-2, etc.) and allow direct transition to any of the other main views, without the user having to manually back out of each sub-view.
What is the "best" way to accomplish this?
1) Should I be creating a custom toolbar object that gets implemented on every view controller?
2) Should it be a combination of tab bar and tool bars?
3) If I have drilled into a stack of views, do I need to pop all of those views individually before I can switch to a different tab?
4) What do I use as my "root" view?
Thanks for any suggestions. I have hunted, but haven't found an example of a scenario quite like this.
I think I figured it out. I needed to embed each "tab" view in a navigation controller.
So...
Tab Bar Controller --> Navigation Controller --> View Controller --> "view stack"
The tab bar now remains at the bottom for every view, and if I touch the tab icon a second time, it goes back to the original tab view controller.
This may be a completely meaningless question, but I got lost. Why should one use tabbarcontroller instead of using tab bar and tab bar items?
As can be seen in the image, I can put a Tab Bar and Tab Bar Items inside a root view, so why should I use tabbarcontroller?
You use a UITabBarController when you want a simple way to switch between different view controllers using a tab bar.
You use a UITabBar when you want your own custom behavior attached to the tab bar.
A view (UITabbar) object knows how to display data to a user and accept user input. UITabBar is a subclass of UIView, display a list of tabs items to the user, and how to display feedback to the user when the user interacts with the tabs. UITabItems are similar to any other UIElements but specially designed to be used within UITabbar due to the unique design and property such as badges.
A controller (UITabbarController) object that knows what data to display to a user and what to do with user input. A UITabBarController is a subclass of UIViewController, It knows what tabs to display to the user, and what to do when the user chooses a tab. This class acts as a convenient base class from which you can derive your controller and also has property's that make it easier to reference when developing.