问Swift-将图像宽度设置为等于外部图像的宽度

EN

    view.addSubview(progressTextVisualEffectView)
    NSLayoutConstraint.activate([
        progressTextVisualEffectView.topAnchor.constraint(equalTo: iosImage.topAnchor, constant: 20),
        progressTextVisualEffectView.leftAnchor.constraint(equalTo: iosImage.leftAnchor, constant: 20),
        progressTextVisualEffectView.heightAnchor.constraint(equalToConstant: 36),
        ])
    progressTextVisualEffectView.autoresizesSubviews = true

    progressTextVisualEffectView.contentView.addSubview(progressLabel)
    NSLayoutConstraint.activate([
        progressLabel.centerXAnchor.constraint(equalTo: progressTextVisualEffectView.centerXAnchor),
        progressLabel.centerYAnchor.constraint(equalTo: progressTextVisualEffectView.centerYAnchor),
        progressLabel.rightAnchor.constraint(equalTo: progressTextVisualEffectView.rightAnchor, constant: -10),
        progressLabel.leftAnchor.constraint(equalTo: progressTextVisualEffectView.leftAnchor, constant: 10)
        ])

}

let progressLabel: UILabel = {
    let label = UILabel()
    label.translatesAutoresizingMaskIntoConstraints = false
    label.text = "1 / 111112"
    label.textColor = UIColor(white: 1, alpha: 0.7)
    label.font = UIFont.systemFont(ofSize: 15, weight: .semibold)
    label.sizeToFit()
    return label
}()

let progressTextVisualEffectView: UIVisualEffectView = {
    let blurEffect = UIBlurEffect(style: .dark)
    let blur = UIVisualEffectView(effect: blurEffect)
    blur.layer.cornerRadius = 12
    blur.clipsToBounds = true
    blur.translatesAutoresizingMaskIntoConstraints = false
    blur.sizeToFit()
    return blur
}()

progressTextVisualEffectView.autoresizesSubviews = true