ios swift alert 自定义弹框 点击半透明部分弹框消失

1.BaseAlertVC

import UIKitclass BaseAlertVC: GLBaseViewController {let centerView = UIView()override func viewDidLoad() {super.viewDidLoad()view.backgroundColor = UIColor(displayP3Red: 0, green: 0, blue: 0, alpha: 0.3)let tap = UITapGestureRecognizer.init(target: self, action: #selector(tapView))tap.delegate = selfview.addGestureRecognizer(tap)view.addSubview(centerView)}@objc func tapView() {dismiss()}}extension BaseAlertVC: UIGestureRecognizerDelegate {func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {if (touch.view?.isDescendant(of: centerView))! {return false;}else{return true;}}}

2.BindFrameNumAlertVC

import UIKit
import XHToastSwiftclass BindFrameNumAlertVC: BaseAlertVC,UITextFieldDelegate {let textField = UITextField()func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {// Get the new text after the user enters or deletes characterslet newText = (textField.text as NSString?)?.replacingCharacters(in: range, with: string) ?? ""// Limit the text field to 15 charactersreturn newText.count <= 15}override func viewDidLoad() {super.viewDidLoad()centerView.backgroundColor = .whitecenterView.snp.makeConstraints { make inmake.width.equalTo(300)make.height.equalTo(250)make.center.equalToSuperview()}centerView.layer.cornerRadius = 10let titleLabel = UILabel()centerView.addSubview(titleLabel)titleLabel.text = LocalizableManager.localValue("binding_frame_number")titleLabel.snp.makeConstraints { make inmake.centerX.equalToSuperview()make.top.equalToSuperview().offset(20)}textField.delegate = selftextField.backgroundColor = UIColor.rgbColor(red: 219, green: 219, blue: 219)textField.keyboardType = .numberPadtextField.textAlignment = .centercenterView.addSubview(textField)textField.snp.makeConstraints { make inmake.centerX.equalToSuperview()make.width.equalTo(220)make.height.equalTo(50)make.top.equalTo(titleLabel.snp_bottom).offset(30)}textField.layer.cornerRadius = 10//限制textField只能输入15个字符let alertLabel = UILabel()alertLabel.numberOfLines = 0alertLabel.font = UIFont(name: "PingFang SC", size: 13)alertLabel.textColor = .grayalertLabel.text = LocalizableManager.localValue("input_corresponding_code")centerView.addSubview(alertLabel)alertLabel.snp.makeConstraints { make inmake.top.equalTo(textField.snp_bottom).offset(10)make.left.equalTo(textField).offset(10)make.right.equalTo(textField)}let sureBtn = UIButton()sureBtn.backgroundColor = UIColor.rgbColor(red: 219, green: 219, blue: 219)sureBtn.setTitleColor(.black, for: .normal)sureBtn.addTarget(self, action: #selector(sureBtnClick), for: .touchUpInside)sureBtn.setTitle(LocalizableManager.localValue("sure"), for: .normal)centerView.addSubview(sureBtn)sureBtn.snp.makeConstraints { make inmake.left.equalToSuperview().offset(30)make.bottom.equalToSuperview().offset(-20)make.width.equalTo(100)make.height.equalTo(40)}sureBtn.layer.cornerRadius = 20let cancelBtn = UIButton()cancelBtn.backgroundColor = newUIYellowcancelBtn.addTarget(self, action: #selector(cancelBtnClick), for: .touchUpInside)cancelBtn.setTitle(LocalizableManager.localValue("cancel"), for: .normal)centerView.addSubview(cancelBtn)cancelBtn.snp.makeConstraints { make inmake.right.equalToSuperview().offset(-30)make.bottom.equalToSuperview().offset(-20)make.width.equalTo(100)make.height.equalTo(40)}cancelBtn.layer.cornerRadius = 20}@objc func sureBtnClick(){print(textField.text)guard let str = textField.text,str.count == 15 else {XHToast.showBottomWithText(LocalizableManager.localValue("input_only_six_num"))return}}@objc func cancelBtnClick(){}}