在设置contentInset
的{{1}}之后,我发现如果我使用默认的滑动手势在页面之间导航,WKWebView
将不会保留WKWebView
,而只会跳转 到顶部,有人知道如何解决吗?谢谢!
我的示例代码:
contentInset
答案 0 :(得分:2)
如果为WKWebView的滚动视图设置contentInset,则需要将WKWebview的另一个属性设置为相同的值。 view.setValue(UIEdgeInsets,forKey:“ _obscuredInsets”)
请参阅:https://opensource.apple.com/source/WebKit2/WebKit2-7600.1.4.11.10/ChangeLog
private lazy var webView: WKWebView = {
let view = WKWebView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height))
view.allowsBackForwardNavigationGestures = true
view.scrollView.contentInsetAdjustmentBehavior = .never
let edgeInsets = UIEdgeInsets(top: 50, left: 0, bottom: 0, right: 0)
view.setValue(edgeInsets, forKey: "_obscuredInsets")
view.scrollView.contentInset = edgeInsets
return view
}()
如果您设置contentInsetAdjustmentBehavior = .automatic,则状态栏会有额外的边缘。您还需要将状态栏的高度添加到obscuredInsets中。
view.scrollView.contentInsetAdjustmentBehavior = . automatic
webView.scrollView.contentInset = UIEdgeInsets(top: 50, left: 0, bottom: 0, right: 0)
webView.setValue(UIEdgeInsets(top: 50 + 44, left: 0, bottom: 0, right: 0), forKey: "_obscuredInsets")
44是状态栏的高度(safeArea)。