在Piotr Tomasik的优雅解决方案的基础上:如果你想在按钮标签和图像之间有一点间距，那么包括在你的边缘嵌入如下(复制我的代码在这里完美地为我工作):

    CGFloat spacing          = 3;
    CGFloat insetAmount      = 0.5 * spacing;

    // First set overall size of the button:
    button.contentEdgeInsets = UIEdgeInsetsMake(0, insetAmount, 0, insetAmount);
    [button sizeToFit];

    // Then adjust title and image insets so image is flipped to the right and there is spacing between title and image:
    button.titleEdgeInsets   = UIEdgeInsetsMake(0, -button.imageView.frame.size.width - insetAmount, 0,  button.imageView.frame.size.width  + insetAmount);
    button.imageEdgeInsets   = UIEdgeInsetsMake(0, button.titleLabel.frame.size.width + insetAmount, 0, -button.titleLabel.frame.size.width - insetAmount);

感谢Piotr的解决方案!

Erik

Xcode 11.4 Swift 5.2

对于任何试图镜像后退按钮样式的人，像这样的雪佛龙:

import UIKit

class NextBarButton: UIBarButtonItem {

    convenience init(target: Any, selector: Selector) {

        // Create UIButton
        let button = UIButton(frame: .zero)

        // Set Title
        button.setTitle("Next", for: .normal)
        button.setTitleColor(.systemBlue, for: .normal)
        button.titleLabel?.font = UIFont.systemFont(ofSize: 17)

        // Configure Symbol
        let config = UIImage.SymbolConfiguration(pointSize: 19.0, weight: .semibold, scale: .large)
        let image = UIImage(systemName: "chevron.right", withConfiguration: config)
        button.setImage(image, for: .normal)

        // Add Target
        button.addTarget(target, action: selector, for: .touchUpInside)

        // Put the Image on the right hand side of the button
        // Credit to liau-jian-jie for this part
        button.transform = CGAffineTransform(scaleX: -1.0, y: 1.0)
        button.titleLabel?.transform = CGAffineTransform(scaleX: -1.0, y: 1.0)
        button.imageView?.transform = CGAffineTransform(scaleX: -1.0, y: 1.0)

        // Customise spacing to match system Back button
        button.imageEdgeInsets = UIEdgeInsets(top: 0.0, left: -18.0, bottom: 0.0, right: 0.0)
        button.titleEdgeInsets = UIEdgeInsets(top: 0.0, left: -12.0, bottom: 0.0, right: 0.0)

        self.init(customView: button)
    }
}

实现:

override func viewDidLoad() {
    super.viewDidLoad()
    let nextButton = NextBarButton(target: self, selector: #selector(nextTapped))
    navigationItem.rightBarButtonItem = nextButton
}

@objc func nextTapped() {
    // your code
}

最简单的解决方案:

iOS 10及以上版本，Swift:

button.transform = CGAffineTransform(scaleX: -1.0, y: 1.0)
button.titleLabel?.transform = CGAffineTransform(scaleX: -1.0, y: 1.0)
button.imageView?.transform = CGAffineTransform(scaleX: -1.0, y: 1.0)

在iOS 10之前，Swift/Obj-C:

button.transform = CGAffineTransformMakeScale(-1.0, 1.0);
button.titleLabel.transform = CGAffineTransformMakeScale(-1.0, 1.0);
button.imageView.transform = CGAffineTransformMakeScale(-1.0, 1.0);

iOS 9及以上版本，Swift:(推荐)

button.semanticContentAttribute = .forceRightToLeft

做你自己。Xcode10 swift4,

用于编程UI设计

 lazy var buttonFilter : ButtonRightImageLeftTitle = {
    var button = ButtonRightImageLeftTitle()
    button.setTitle("Playfir", for: UIControl.State.normal)
    button.setImage(UIImage(named: "filter"), for: UIControl.State.normal)
    button.backgroundColor = UIColor.red
    button.contentHorizontalAlignment = .left
    button.titleLabel?.font = UIFont.systemFont(ofSize: 16)
    return button
}()

边缘插入值应用于矩形以收缩或展开 用矩形表示的面积。通常，使用边缘嵌入 在视图布局期间修改视图的框架。积极的价值观 将被插入(或缩小)指定数量的帧。负 值使帧由指定的对象开始(或展开) 量。

class ButtonRightImageLeftTitle: UIButton {

    override func layoutSubviews() {
        super.layoutSubviews()

        guard imageView != nil else { return }

        imageEdgeInsets = UIEdgeInsets(top: 5, left: (bounds.width - 35), bottom: 5, right: 5)
        titleEdgeInsets = UIEdgeInsets(top: 0, left: -((imageView?.bounds.width)! + 10), bottom: 0, right: 0 )

    }
}

用于StoryBoard UI设计

对于这个问题，你可以在“label with UIImage view”中创建UIView，并将UIView类设置为UIControl，并创建IBAction为tuch up inside

iOS 15带来了一个更新，现在你可以用一种更简单而不混乱的方式来处理按钮中的图像放置。没有insets。

在XIB /故事板: 简单地设置按钮的“位置”属性为领先/训练/顶部/底部后，添加一个图像属性按钮。由于它是领导/培训，所以它支持RTL有一个额外的优势

**在代码中(编程方式):** 以编程方式使用“按钮配置”属性

这不是一个向后兼容的功能，只能在iOS15+中工作，正如WWDC '21 - https://developer.apple.com/videos/play/wwdc2021/10064/?time=236所演示的那样

开发人员文档:https://developer.apple.com/documentation/uikit/uibutton/configuration?changes=_4