How to place an ImageView in the center of a UIView?-CodePudding

How to place an ImageView in the center of a UIView? Code:

let dailyUIView = UIView(frame: CGRect(x: 0, y: 420, width: view.frame.size.width, height: 40))
dailyUIView.layer.masksToBounds = true
dailyUIView.backgroundColor = UIColor(named: "dailyTest")
scrollView.addSubview(dailyUIView)

let weatherIconImageView = UIImageView(frame: CGRect(x: 70, y: 0, width: 60, height: 60))
weatherIconImageView.image = UIImage(named: "01d")
dailyUIView.addSubview(weatherIconImageView)

CodePudding user response：

   let dailyUIView = UIView(frame: CGRect(x: 0, y: 420, width: view.frame.size.width, height: 40))
   dailyUIView.layer.masksToBounds = true
   dailyUIView.backgroundColor = UIColor(named: "dailyTest")
   scrollView.addSubview(dailyUIView)

   let weatherIconImageView = UIImageView(frame: CGRect(x: 70, y: 0, width: 60, height: 60))
   weatherIconImageView.image = UIImage(named: "01d")
   dailyUIView.addSubview(weatherIconImageView)
        
   weatherIconImageView.translatesAutoresizingMaskIntoConstraints = false         
   NSLayoutConstraint.activate([
            weatherIconImageView.widthAnchor.constraint(equalToConstant: 60),
            weatherIconImageView.heightAnchor.constraint(equalToConstant: 60),
            weatherIconImageView.centerXAnchor.constraint(equalTo: dailyUIView.centerXAnchor),
            weatherIconImageView.centerYAnchor.constraint(equalTo: dailyUIView.centerYAnchor),
        ])

CodePudding user response：

try this it will maybe help

 let dailyUIView = UIView(frame: CGRect(x: 0, y: 420, width: view.frame.size.width, height: 40))
    dailyUIView.layer.masksToBounds = true
    dailyUIView.backgroundColor = UIColor(named: "dailyTest")
    scrollView.addSubview(dailyUIView)

    let weatherIconImageView = UIImageView(frame: CGRect(x: 70, y: 0, width: 60, height: 60))
    weatherIconImageView.image = UIImage(named: "01d")
    dailyUIView.addSubview(weatherIconImageView)
    weatherIconImageView.translatesAutoresizingMaskIntoConstraints = false
    
    weatherIconImageView.heightAnchor.constraint(equalToConstant: 60).isActive = true
    weatherIconImageView.widthAnchor.constraint(equalToConstant: 60).isActive = true
    
    weatherIconImageView.centerXAnchor.constraint(equalTo: dailyUIView.centerXAnchor).isActive = true
    weatherIconImageView.centerYAnchor.constraint(equalTo: dailyUIView.centerYAnchor).isActive = true