SwiftUI 如何禁止UITextView的长按放大功能?

在 SwiftUI 中，可以使用 UIViewRepresentable 将 UITextView 包装为 SwiftUI 控件，并实现 UIWebViewDelegate 来禁止长按放大功能。代码示例如下：

struct TextView: UIViewRepresentable {
    
    @Binding var text: String
    
    func makeUIView(context: Context) -> UITextView {
        let textView = UITextView()
        textView.isScrollEnabled = true
        textView.isEditable = true
        textView.isUserInteractionEnabled = true
        textView.delegate = context.coordinator
        textView.font = UIFont.preferredFont(forTextStyle: .body)
        textView.autocapitalizationType = .sentences
        textView.keyboardType = .default
        textView.returnKeyType = .default
        textView.enablesReturnKeyAutomatically = true
        textView.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
        return textView
    }
    
    func updateUIView(_ uiView: UITextView, context: Context) {
        uiView.text = text
    }
    
    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }
    
    class Coordinator: NSObject, UITextViewDelegate {
        
        var parent: TextView
        
        init(_ parent: TextView) {
            self.parent = parent
        }
        
        func textViewDidChange(_ textView: UITextView) {
            self.parent.text = textView.text
        }
        
        // 禁止长按放大功能
        func textViewDidChangeSelection(_ textView: UITextView) {
            textView.selectedTextRange = nil
        }
    }
}

在 Coordinator 中实现 textViewDidChangeSelection 方法，将 textView.selectedTextRange 设置为 nil，即可禁止长按放大功能。