How to disable and enable auto rotate on swift? - ios

Question

On general settings I allow portrait and landscapeleft , landscaperight modes. I want to turn off landscape modes. On viewController I write this code:
override func shouldAutorotate() -> Bool {
return false
}
However, the auto rotation works ignoring this function. How do I disable and enable autorotation on swift? IOS programming

Answer 1

It might be the right code, but not in the right View Controller. For example, if the View Controller is embedded in a UINavigationController, the navigation controller can still rotate, causing the View Controller to still rotate. It really depends on your specific situation.

Answer 2

I had the same problem, i have fixed that.
Follow-
info --> custom ios target properties --> Support Interface Orinetations. and delete ![Delete - Landscape (left home button), Landscape (right home button), Landscape (top home button)][1]
This will help you 😊

Answer 3

You can do it by creating a subclass of UINavigationController and inside that, override the should AutoRotate function,then
return false for the viewControllers in which you want to disable autorotation
return true for the viewControllers in which you want autorotation
import UIKit
class CustomNavigationController: UINavigationController {
override func shouldAutorotate() -> Bool {
if !viewControllers.isEmpty {
// Check if this ViewController is the one you want to disable roration on
if topViewController!.isKindOfClass(ViewController) { //ViewController is the name of the topmost viewcontroller
// If true return false to disable it
return false
}
}
// Else normal rotation enabled
return true
}
}
If you want to disable autorotation throughout the navigation controller, remove the if condition and return false always

Answer 4

Extending Josh Gafni's answer and user3655266, the concept also extends to view controllers.
If we have a UIViewController that is a child of another UIViewController in the view hierarchy, overriding the child's shouldAutorotate() to false might still rotate since it parent's controller might still be returning true. It is also important to know that even though the child VC is being displayed, the parent's shouldAutoRotate function are still called. Hence the control should lie there.
Swift 5
class ParentViewController:UIViewController{
override func shouldAutorotate() -> Bool {
// Return an array of ViewControllers that are children of the parent
let childViewControllersArray = self.children
if childViewControllersArray.count > 0 {
// Assume childVC is the ViewController you are interested in NOT allowing to rotate
let childVC = childViewControllersArray.first
if childVC is ChildViewController {
return false
}
}
return true
}
}
** The same can also be done to only allow certain phone orientation **
override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
// This function is called on the parent's controller whenever the child of this parent is trying to rotate
let childrenVCArray = self.children
if childrenVCArray.count > 0 {
// assuming the array of the first element is the current childVC
let topMostVC = childrenVCArray[0]
if topMostVC is ChildViewController {
// Assuming only allowing landscape mode
return .landscape
}
}
// Return portrait otherwise
return .portrait
}

Answer 5

I am not sure if shouldAutorotate() function is still enabled in swift 5 for year 2021. However I recommend calling one of the following functions as part of standard procedure for managing rotation of ViewControllers. ("Handling View Rotations" part in apple developer webside For example preferredInterfaceOrientationForPresentation