iOS app can support landscape orientation for only one tabBar item?

Question

I’m making iOS application using swift. My app has many view and all view has UITabBar as root view. I need to support landscape orientation for only one tabbar item.

tabBar 1 - Portrait only
tabBar 2 - Portrait only
tabBar 3 - Portrait only
tabBar 4 - Landscape & Portrait

How can i do that?

This could be simpler to implement. It seems like a similar problem. http://stackoverflow.com/questions/25651969/setting-device-orientation-in-swift-ios — Güngör Basa, Jul 15 '15 at 17:29
Okay I will manage orientation per view But I have a question. When my app are current landscape mode in tabBar 4. when I move to another tabBar my app not back to portrait mode. Should I check per view and force rotation, right ? ps.sorry for my bad english — jeanzuck, Jul 15 '15 at 17:37

score 2 · Answer 1 · edited May 23 '17 at 12:33

I have a working solution based on this answer here: https://stackoverflow.com/a/24928474/1359306

So first off, make sure the supported orientations are checked in Target Settings > General > Deployment Info.

Add this code (taken from the linked answer) to your app delegate:

internal var shouldRotate = false
func application(application: UIApplication, supportedInterfaceOrientationsForWindow window: UIWindow?) -> UIInterfaceOrientationMask {
  if shouldRotate {
    return .AllButUpsideDown
  } else {
    return .Portrait
  }
}

Then in your landscape only view controller, put the following code in viewDidAppear (NOT viewDidLoad!) to enable both portrait and landscape view:
```
let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
appDelegate.shouldRotate = true
```

And the opposite to viewWillDisappear to disable landscape again.

let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
appDelegate.shouldRotate = false

I am also hiding my tabs and status bar when the app is in landscape, which feels like a much better UX than tapping a tab and automatically rotating the screen.

There are a few things which in my case I don't have to worry about.

Displaying a modal view from a landscape view would cause issues

A votedown with no comment :/ If this answer is wrong or can be improved then comment. I have this code in prod. — Patrick, Feb 09 '17 at 13:11

iOS app can support landscape orientation for only one tabBar item?

1 Answers1