为什么 navigationItem.leftBarButtonItem 没有显示在左侧？

Question

我已经设置了一个NavigationBar，并且正在尝试在左侧添加一个png，作为左BarbuttonItem，但它出现在NavigationBar的中间。

private func configureNavBar() {
    var image = UIImage(named: "netflixLogo") // PNG
    image = image?.withRenderingMode(.alwaysOriginal)
    //self.navigationController?.navigationBar.topItem?.leftBarButtonItem = UIBarButtonItem(image: image, style: .done, target: self, action: nil) This didn't work either.
    
    navigationItem.leftBarButtonItem = UIBarButtonItem(image: image, style: .done, target: self, action: nil)
    
    //These buttons are working, they are on the right side.
    navigationItem.rightBarButtonItems = [
        UIBarButtonItem(image: UIImage(systemName: "person"), style: .done, target: self, action: nil),
        UIBarButtonItem(image: UIImage(systemName: "play.rectangle"), style: .done, target: self, action: nil),
    ]
    
    navigationController?.navigationBar.tintColor = .white
}

这就是我在模拟器上看到的：

Answer 1

它在左侧，但图像太宽，太高了，对于NAV栏而言，显示在其边界的中心安装的方面

Answer 2

我有同样的问题。

试试这个：

extension UIImage {
    func resizeTo(size: CGSize) -> UIImage {
        let renderer = UIGraphicsImageRenderer(size: size)
        let image = renderer.image { _ in
            self.draw(in: CGRect.init(origin: CGPoint.zero, size: size))
        }
        
        return image.withRenderingMode(self.renderingMode)
    }
}