导航项的 titleView 移到了左边？

Question

我有一个带有左（汉堡包）navigationItem.leftBarButtonItem 的应用程序，我们已将 titleView 设置为公司的徽标。问题是他们想要汉堡包旁边的徽标。汉堡包按钮设置在 Storyboard 的 ViewController 中，徽标以编程方式设置，如下所示：

let logo = UIImage(named: "logo.png")
let imageView = UIImageView(image:logo)
imageView.frame = CGRect(x: 0, y: 0, width: 120, height: 60)
navigationItem.titleView = imageView

有办法把它移到左边吗？

更新： 关于使用leftBarButtonItems

的建议

我在另一个 UIViewController 中完成了此操作，但结果与我预期的不同。这是代码：

let logo    = UIImage(named: "logo")!
let karambaButton   = UIBarButtonItem(image: logo,  style: .plain, target: self, action: nil)
let backBTN = UIBarButtonItem(image: UIImage(named: "back"), style: .plain, target: navigationController, action: #selector(UINavigationController.popViewController(animated:)))

navigationItem.leftBarButtonItems = [backBTN, logoButton]

结果如下：

(深色块是图片，因为是客户端所以不得不遮住)

Answer 1

UINavigationItem 有一个名为 leftBarButtonItems 的属性。

将您的徽标 imageView 放入 UIBarItem 和 size it correctly 的 customView 属性中，您应该已准备就绪。只需将它与汉堡包按钮一起添加到数组中即可。

编辑添加 -- 尝试使用自定义视图，即：

if let logo = UIImage(named: "logo") {

  let imageView = UIImageView(image:logo)

  let karambaButton = UIBarButtonItem(customView: imageView)

  let backBTN = UIBarButtonItem(image: UIImage(named: "back"), style: .plain, target: navigationController,
action: #selector(UINavigationController.popViewController(animated:)))

  navigationItem.leftBarButtonItems = [backBTN, logoButton]

}

Answer 2

您还可以通过编程方式设置自动布局。

    imageView.translatesAutoresizingMaskIntoConstraints = false
    let horizontalConstraint = imageView.leadingAnchor.constraint(equalTo: hamburgerButton.trailingAnchor, constant: 10)
    let verticalConstraint = newView.centerYAnchor.constraint(equalTo: hamburgerButton.centerYAnchor)
    let widthConstraint = newView.widthAnchor.constraint(equalToConstant: 120)
    let heightConstraint = newView.heightAnchor.constraint(equalToConstant: 120)
    imageView.addConstraints([horizontalConstraint, verticalConstraint, widthConstraint, heightConstraint])

Answer 3

您可以通过访问设置多个左栏按钮项目：

navigationItem.leftBarButtonItems = [barItem1, barItem2]

右侧同理。 :)

导航项的 titleView 移到了左边？

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