swift中UISegmentedControl的使用

UISegmentedControl的使用

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.setupSegmentedControl()
    }

    func setupSegmentedControl() {
        // 创建segmentedControl
        let items = ["Hello", "world"]
        let segmentedControl = UISegmentedControl(items: items)
        segmentedControl.center = self.view.center
        // 选项颜色
        segmentedControl.tintColor = UIColor.red
        // 默认选中第二项
        segmentedControl.selectedSegmentIndex = 1
        // 点击事件
        segmentedControl.addTarget(self, action: #selector(segmentedControlChange(_ :)), for: .valueChanged)
        self.view.addSubview(segmentedControl)
        // 添加文字选项
        segmentedControl.insertSegment(withTitle: "新增", at: 1, animated: true)
        // 添加图片选项
        let image = UIImage(named: "icon")
        segmentedControl.insertSegment(with: image, at: 1, animated: true)
        // 修改选项文字
        segmentedControl.setTitle("啊哈哈", forSegmentAt: 0)
        // 修改选项图片
        segmentedControl.setImage(image, forSegmentAt: 1)
        // 修改选项内容偏移位置
        let size = CGSize(width: 10, height: 7)
        segmentedControl.setContentOffset(size, forSegmentAt: 2)
    }

    func segmentedControlChange(_ segmented: UISegmentedControl) {
        if segmented.selectedSegmentIndex == 0 {
            print("第0个啊哈哈")
        }
        else if segmented.selectedSegmentIndex == 1 {
            print("第1个啊哈哈")
        }
        else {
            print("其他啊哈哈")
        }
    }
}