笔记：iOS 与 JavaScript 的交互（三）

ViewController.swift

progressView = UIProgressView(
  frame: CGRect(
    origin: CGPoint(x: 0, y: 64),
    size: CGSize(width: self.view.frame.width, height: 1)
  )
)

let width = self.view.bounds.size.width
let height = self.view.bounds.size.height

wkWebView.frame = CGRect(
  origin: CGPoint(x: 0, y: 0),
  size: CGSize(width: width, height: height)
)

wkWebView.addSubview(progressView)
self.view.addSubview(wkWebView)