Увеличение высоты контроллера вида хостинго ⇐ IOS

[Anonymous]

`Итак, в основном у меня есть сценарий, где мне нужно показать быстрый пользовательский интерфейс, который содержит цвет фона и текстовое поле внизу, в сочетании оба этого будут отображаться внизу экрана. И я покажу этот ответ в качестве текста выше ввода поле. Слишком много вещей ничего не работает. Может ли кто -нибудь, пожалуйста, помочь
Вот мини -версия того, что я пытаюсь сделать в двух словах < /p>
//
// ViewController.swift
// dynamicHeight
//
// Created by pranjal.agarwal on 17/09/25.
//

import UIKit
import SwiftUI

class ViewController: UIViewController {

private let tableView = UITableView()
private let floatingActionButton = UIButton(type: .system)
private var swiftUIHostingController: UIHostingController?
private var isSwiftUIViewVisible = false
private var heightConstraint: NSLayoutConstraint?

override func viewDidLoad() {
super.viewDidLoad()
setupTableView()
setupFloatingActionButton()
}

private func setupTableView() {
// Add table view to view hierarchy
view.addSubview(tableView)

// Set up constraints - pin to edges, respect top safe area
tableView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
tableView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor)
])

// Configure table view
tableView.dataSource = self
tableView.register(UITableViewCell.self, forCellReuseIdentifier: "Cell")
}

private func setupFloatingActionButton() {
// Configure floating action button
floatingActionButton.setTitle("+", for: .normal)
floatingActionButton.titleLabel?.font = UIFont.systemFont(ofSize: 24, weight: .bold)
floatingActionButton.backgroundColor = .systemBlue
floatingActionButton.setTitleColor(.white, for: .normal)
floatingActionButton.layer.cornerRadius = 28
floatingActionButton.layer.shadowColor = UIColor.black.cgColor
floatingActionButton.layer.shadowOffset = CGSize(width: 0, height: 2)
floatingActionButton.layer.shadowOpacity = 0.3
floatingActionButton.layer.shadowRadius = 4

// Add to view and set constraints
view.addSubview(floatingActionButton)
floatingActionButton.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
floatingActionButton.widthAnchor.constraint(equalToConstant: 56),
floatingActionButton.heightAnchor.constraint(equalToConstant: 56),
floatingActionButton.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor, constant: -16),
floatingActionButton.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -16)
])

// Add action
floatingActionButton.addTarget(self, action: #selector(floatingActionButtonTapped), for: .touchUpInside)
}

@objc private func floatingActionButtonTapped() {
if isSwiftUIViewVisible {
hideSwiftUIView()
} else {
showSwiftUIView()
}
}

private func showSwiftUIView() {
let swiftUIView = SwiftUIView()
swiftUIHostingController = UIHostingController(rootView: swiftUIView)

guard let hostingController = swiftUIHostingController else { return }

addChild(hostingController)
view.addSubview(hostingController.view)
hostingController.view.backgroundColor = .yellow
hostingController.didMove(toParent: self)

// Set up constraints
hostingController.view.translatesAutoresizingMaskIntoConstraints = false
heightConstraint = hostingController.view.heightAnchor.constraint(equalToConstant: 300)
NSLayoutConstraint.activate([
hostingController.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),
hostingController.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
hostingController.view.bottomAnchor.constraint(equalTo: view.bottomAnchor),
heightConstraint!
])

// Add tap gesture to dismiss when tapping outside
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(backgroundTapped))
tapGesture.cancelsTouchesInView = false
view.addGestureRecognizer(tapGesture)

// Initial position (off-screen) - use constraint height for consistency
hostingController.view.transform = CGAffineTransform(translationX: 0, y: 300)

// Animate in
UIView.animate(withDuration: 0.3, delay: 0, usingSpringWithDamping: 0.8, initialSpringVelocity: 0, options: .curveEaseOut) {
hostingController.view.transform = .identity
}

isSwiftUIViewVisible = true

// Schedule height increase after 5 seconds
DispatchQueue.main.asyncAfter(deadline: .now() + 5.0) {
self.increaseSwiftUIViewHeight()
}
}

private func hideSwiftUIView() {
guard let hostingController = swiftUIHostingController,
let heightConstraint = heightConstraint else { return }

// Remove tap gesture recognizer
view.gestureRecognizers?.removeAll { $0 is UITapGestureRecognizer }

// Use current constraint height for consistent animation
let currentHeight = heightConstraint.constant

UIView.animate(withDuration: 0.3, delay: 0, options: .curveEaseIn) {
hostingController.view.transform = CGAffineTransform(translationX: 0, y: currentHeight)
} completion: { _ in
hostingController.willMove(toParent: nil)
hostingController.view.removeFromSuperview()
hostingController.removeFromParent()
self.swiftUIHostingController = nil
self.heightConstraint = nil
}

isSwiftUIViewVisible = false
}

private func increaseSwiftUIViewHeight() {
guard let heightConstraint = heightConstraint, isSwiftUIViewVisible else { return }

// Animate height change from 300 to 400
heightConstraint.constant = 400
self.view.layoutIfNeeded()
// UIView.animate(withDuration: 0.3, delay: 0, options: [.curveEaseInOut, .allowUserInteraction]) {
//
// }
}

@objc private func backgroundTapped(_ gesture: UITapGestureRecognizer) {
let location = gesture.location(in: view)

// Check if tap is outside the SwiftUI view
if let hostingController = swiftUIHostingController,
!hostingController.view.frame.contains(location) {
hideSwiftUIView()
}
}
}

// MARK: - UITableViewDataSource
extension ViewController: UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 20 // You can change this number as needed
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
cell.textLabel?.text = "cell - \(indexPath.row)"
return cell
}
}

// MARK: - SwiftUI View
struct SwiftUIView: View {
@State private var inputText: String = ""

var body: some View {

VStack {
Spacer()

HStack {
TextField("Ask me anything about travel", text: $inputText)
.textFieldStyle(RoundedBorderTextFieldStyle())
.padding(.horizontal, 20)
}
}

.ignoresSafeArea(.all)
.background(Color.blue)
}
}


Подробнее здесь: https://stackoverflow.com/questions/797 ... i-big-time