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首页 > 解决方案 > 当我更改设备的方向时，为什么框架中的值比等于特定大小不做同样的工作？

ios - 当我更改设备的方向时，为什么框架中的值比等于特定大小不做同样的工作？

问题描述

我有一段代码允许我在更改UIImageView设备方向期间更改 an 的大小。

height = self.view.frame.size.height我硬编码了这个值（高度 = 896 和宽度 = 414），它工作得很好，但是当我想通过放置动态值（和）来做一个动态大小时width = self.view.frame.size.width，它不起作用......

但是，self.view.frame.size.height= 896 和self.view.frame.size.width= 414 这很奇怪......我错过了一些我认为的东西。

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
    super.viewWillTransition(to: size, with: coordinator)

    if UIDevice.current.orientation.isLandscape {
        print("Landscape")
        self.newImageView?.frame.size.height = 414
        self.newImageView?.frame.size.width = 896
        navBar?.frame = CGRect(x: 0, y: 0, width: 896, height: 100)
    } else {
        print("Portrait")
        self.newImageView?.frame.size.height = 896
        self.newImageView?.frame.size.width = 414
        navBar?.frame = CGRect(x: 0, y: 40, width: 414, height: 100)
    }
}

编辑（解决方案）：对于信息，我在代码中使用了这种方式，但票证中的解决方案更短，更现代 

 //Share bar
        let shareBar: UIBarButtonItem = UIBarButtonItem.init(barButtonSystemItem:.action, target: self, action: #selector(userDidTapShare))
        self.navigationItem.rightBarButtonItem = shareBar
        if UIDevice.current.orientation.isLandscape {
            let width =  max(self.view.frame.size.width, self.view.frame.size.height)
            let height = min(self.view.frame.size.width, self.view.frame.size.height)
            self.newImageView?.frame.size.height = height
            self.newImageView?.frame.size.width = width
            navBar = UINavigationBar(frame: CGRect(x: 0, y: UIApplication.shared.statusBarFrame.height, width: width, height: 100))
        } else {
            let width =  min(self.view.frame.size.width, self.view.frame.size.height)
            let height = max(self.view.frame.size.width, self.view.frame.size.height)
            self.newImageView?.frame.size.height = height
            self.newImageView?.frame.size.width = width
            navBar = UINavigationBar(frame: CGRect(x: 0, y: UIApplication.shared.statusBarFrame.height, width: width, height: 100))
        }
        view.addSubview(navBar!)

有任何想法吗？

标签： iosswiftuiviewuiviewcontrolleruiimageview

解决方案

如果要调整导航栏的大小

 self.navBar.autoresizingMask = (UIView.AutoresizingMask(rawValue: UIView.AutoresizingMask.RawValue(UInt8(UIView.AutoresizingMask.flexibleRightMargin.rawValue) | UInt8(UIView.AutoresizingMask.flexibleLeftMargin.rawValue) | UInt8(UIView.AutoresizingMask.flexibleBottomMargin.rawValue) | UInt8(UIView.AutoresizingMask.flexibleTopMargin.rawValue))))

把它放在你的 view.addSubview(navBar!) 之后

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