自动调整UITextView大小以实现兼容性- Swift 3

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var textView: UITextView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 设置UITextView的属性和约束
        
        // 监听设备方向变化的通知
        NotificationCenter.default.addObserver(self, selector: #selector(deviceOrientationDidChange), name: UIDevice.orientationDidChangeNotification, object: nil)
    }
    
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        
        // 初始调整UITextView的大小
        adjustTextViewSize()
    }
    
    @objc func deviceOrientationDidChange() {
        // 设备方向变化时调整UITextView的大小
        adjustTextViewSize()
    }
    
    func adjustTextViewSize() {
        textView.sizeToFit()
    }
}