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Sinan the Thinker
7,980 Pointsproblems with tab bar controllers
Hi guys,
i am developing a ribbit like app with two tab bar controllers for two different of users one.
Now when I press on one of the tabbaritems -of one of the two tabbarcontrollers- like the "friends" tab in the Ribbit app, the added "edit" bar button is not visible in the navigation of this tableviewcontroller.
I think the tabbarcontroller wont function well, otherwise it should automatically show the table view controller with the added bar buttons on it right?
here you can see my mainstoryboard https://docs.google.com/document/d/1hQjuJxESVq9c0rWWlURkcF3ckd5Hjga1p468rDxWe1U/edit?usp=sharing
4 Answers
Sinan the Thinker
7,980 PointsI couldnt solve it, therefore I made two different apps. For eacht tab controller one app.
Ben Jakuben
Treehouse TeacherSo what exactly happens when you tap on the tab? Is the new view controller loaded, but empty? It's hard for me to tell from your screenshots, but what you seem to be describing sounds like it should work. Tapping on the tab can display a new table view controller that should have bar button items, just like the Friends tab in the Ribbit app.
Sinan the Thinker
7,980 PointsWhen i tap on the tab bar item it stays on the tabbarviewcontroller, dont go throug the "friends"table view..but when I change the initial starting arrow to this tabbarcontroller, than it function well...what does that little arrow at the beginning viewcontroller mean in the main storyboard in fact?
Soojin Ro
13,331 PointsThe arrow indicates which view controller will be shown when you first start the app. If you click a view controller and see the 'attributes inspector', there is a checkbox called "Is Initial View Controller". If you check that box, that view controller becomes the first view of your app.
Ben Jakuben
Treehouse TeacherIt sounds like the tab bar item may not be correctly hooked up to your "friends" table view. You might want to try deleting the segue in your storyboard and then recreating it to make sure you're doing it like in this video. If you hook it up correctly you should at least be able to view the appropriate view controller when you tap on the tab.
Sinan the Thinker
7,980 PointsI did it like that video, checked again it has to be with the initial function. If i set the initial screen to that particular tabbarcontroller, it function right. When I make the loginviewcontroller the initial vc, than the tabbar wont function well....So...I really dont know how to solve..?
Ben Jakuben
Treehouse TeacherAh, I think it may be difficulties in trying to use a tab bar controller that isn't at the root level of your navigation. Apple recommends only using tab bar controllers at the root level (which is the same thing as you moving the entry point arrow). But your storyboard has a regular navigation controller spawning a tab bar controller later on. It's not impossible, but if you google "tab bar controller inside navigation controller" or something like that then you can read more about possible solutions or changes.
Sinan the Thinker
7,980 PointsYes, besides that I think the little arrow/initial screen function give different functions to this initial screen...why would otherwise function the tabbarcontroller like it shoulds (if it is set as initial view)....if it is not set as initial view, the tabbarviews wont appear and shows arrow back to the loginvc (root)...which I also dont want...i think that the tabbarcontroller dont function well because it is not the rootvc?