swift中UIProgressView的使用

UIProgressView的使用

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.setupProgressView()
    }
    
    func setupProgressView() {
    
        // 创建progressView
        let progressView = UIProgressView(progressViewStyle: .default)
        progressView.center = self.view.center
        // 默认进度50%
        progressView.progress = 0.5
        progressView.setProgress(0.5, animated: true)
        // 已有进度颜色
        progressView.progressTintColor = UIColor.red
        // 剩余进度颜色
        progressView.trackTintColor = UIColor.blue
        self.view.addSubview(progressView)
        
    }
}