I cannot show PKToolPicker(ios14.1)

Question

Created Nov ’20

Replies 2

Boosts 0

Views 1.1k

Participants 2

environment
・MacOS: 10.15.7
・Xcode: 12.1
・iOS: 14.1

I'm trying to make a paint app But I cannot show PKToolPicker. I set my code as below.

Code Block import UIKit
import PencilKit
class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        // Three Lines of Code ここに3行のコードを足す
        let canvas = PKCanvasView(frame: view.frame)
        view.addSubview(canvas)
        canvas.tool = PKInkingTool(.pen, color: .black, width: 30)
        
        canvas.drawingPolicy = .anyInput
         //PKToolPicker: ドラッグして移動できるツールパレット (ペンや色などを選択できるツール)
        if let window = UIApplication.shared.windows.first {
            if let toolPicker = PKToolPicker.shared(for: window) {
                toolPicker.addObserver(canvas)
                toolPicker.setVisible(true, forFirstResponder: canvas)
                canvas.becomeFirstResponder()
            }
        }
    }
}

Line 37　I get a warning here↓
'shared(for:)' was deprecated in iOS 14.0: Create individual instances instead.

So I changed it like this

Code Block         let toolPicker = PKToolPicker.init()
        toolPicker.addObserver(canvas)
        toolPicker.setVisible(true, forFirstResponder: canvas)
        canvas.becomeFirstResponder()

But I did not succeed.

What should i do in this case？

Answered by KentaZZ in 648061022

I solved it like this

Code Block toolPicker.addObserver(canvas)
toolPicker.setVisible(true, forFirstResponder: canvas)
canvas.becomeFirstResponder()

Boost

Answer 1

KentaZZ OP

Nov ’20

Accepted Answer

I solved it like this

Code Block toolPicker.addObserver(canvas)
toolPicker.setVisible(true, forFirstResponder: canvas)
canvas.becomeFirstResponder()

0

Answer 2

vincemansel OP

Aug ’21

First declare an individual instance of the toolPicker for the ViewController:

let toolPicker = PKToolPicker.init()

Then later, in viewWillAppear(_ :)

toolPicker.addObserver(canvas)
toolPicker.setVisible(true, forFirstResponder: canvas)
canvas.becomeFirstResponder()

0