I am making app with Video Player in it and my whole struct is made for only portrait view, except this video player. I want to enable landscape rotation just for this view. But I've chacked lots of forums and every answere was to add some code to App Delegate, and i don't have it. What can i do then.
1 Answers
Here's a demo for you. You can change the orientation to the one you like by calling the function changeOrientation. You can also reverse an orientation change after it's done, using the .onReceive. The .onReceive is called every time there is an orientation change, so you can reverse a orientation change that you don't like.
I know this is not optimal, but this is the best i could find without using a lot of UIKit and AppDelegate. You can use AppDelegate for a better result (i think).
import SwiftUI
import UIKit
struct ContentView: View {
private let rotationChangePublisher = NotificationCenter.default
.publisher(for: UIDevice.orientationDidChangeNotification)
@State private var isOrientationLocked = false
var body: some View {
VStack {
Button("Change orientation") {
if UIDevice.current.orientation.isPortrait {
changeOrientation(to: .landscapeLeft)
} else {
changeOrientation(to: .portrait)
}
}.padding()
Button("Orientation is \(isOrientationLocked ? "" : "NOT ")Locked to portrait-only") {
isOrientationLocked.toggle()
}.padding()
}
.font(.system(size: 17, weight: .semibold))
.onReceive(rotationChangePublisher) { _ in
// This is called when there is a orientation change
// You can set back the orientation to the one you like even
// if the user has turned around their phone to use another
// orientation.
if isOrientationLocked {
changeOrientation(to: .portrait)
}
}
}
func changeOrientation(to orientation: UIInterfaceOrientation) {
// tell the app to change the orientation
UIDevice.current.setValue(orientation.rawValue, forKey: "orientation")
print("Changing to", orientation.isPortrait ? "Portrait" : "Landscape")
}
}
Also, make sure you've allowed different orientations that you'd like to use, beforehand:
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