ios - HMSegmentedControl 在 Swift 中将分段控件绑定(bind)到 ScrollView ？

Question

我正在使用流行的 HMSegmentedControl 在我的项目中呈现片段。但是现在我面临着一个灾难性的问题，因为我无法将我的片段绑定(bind)到 ScrollView 。由于示例在 objective-c 中。在 Swift 中这样做变得越来越困难。代码是这样的——

 self.segmentedControl4 = [[HMSegmentedControl alloc] initWithFrame:CGRectMake(0, 260, viewWidth, 50)];
self.segmentedControl4.sectionTitles = @[@"Worldwide", @"Local", @"Headlines"];
self.segmentedControl4.selectedSegmentIndex = 1;
self.segmentedControl4.backgroundColor = [UIColor colorWithRed:0.7 green:0.7 blue:0.7 alpha:1];
self.segmentedControl4.titleTextAttributes = @{NSForegroundColorAttributeName : [UIColor whiteColor]};
self.segmentedControl4.selectedTitleTextAttributes = @{NSForegroundColorAttributeName : [UIColor colorWithRed:0.1 green:0.1 blue:0.1 alpha:1]};
self.segmentedControl4.selectionIndicatorColor = [UIColor colorWithRed:0.3 green:0.3 blue:0.3 alpha:1];
self.segmentedControl4.selectionStyle = HMSegmentedControlSelectionStyleBox;
self.segmentedControl4.selectionIndicatorLocation = HMSegmentedControlSelectionIndicatorLocationUp;
self.segmentedControl4.tag = 3;

__weak typeof(self) weakSelf = self;

[self.segmentedControl4 setIndexChangeBlock:^(NSInteger index)
{
    [weakSelf.scrollView scrollRectToVisible:CGRectMake(viewWidth * index, 0, viewWidth, 200) animated:YES];
}];

[self.view addSubview:self.segmentedControl4];

self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 310, viewWidth, 210)];
self.scrollView.backgroundColor = [UIColor colorWithRed:0.7 green:0.7 blue:0.7 alpha:1];
self.scrollView.pagingEnabled = YES;
self.scrollView.showsHorizontalScrollIndicator = NO;
self.scrollView.contentSize = CGSizeMake(viewWidth * 3, 200);
self.scrollView.delegate = self;
[self.scrollView scrollRectToVisible:CGRectMake(viewWidth, 0, viewWidth, 200) animated:NO];
[self.view addSubview:self.scrollView];

谁有做过这个第三方的能给我一些解决方案吗？

Answer 1

这是滚动分段控件的代码。您也可以从 here 下载源代码.

import UIKit
import HSegmentControl

class ViewController: UIViewController, HSegmentControlDataSource {

    @IBOutlet weak var segmentControl: HSegmentControl!
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.


        segmentControl.dataSource = self
        segmentControl.numberOfDisplayedSegments = 3
        segmentControl.segmentIndicatorViewContentMode = UIViewContentMode.bottom
//        segmentControl.selectedTitleFont = UIFont.boldSystemFont(ofSize: 17)
        segmentControl.selectedTitleColor = UIColor.white
//        segmentControl.unselectedTitleFont = UIFont.systemFont(ofSize: 17)
//        segmentControl.unselectedTitleColor = UIColor.darkGray
//        segmentControl.segmentIndicatorImage = UIImage(named: "ind_img")
        segmentControl.segmentIndicatorView.backgroundColor = UIColor(red: 31.0/255.0, green: 48.0/255.0, blue: 93.0/255.0, alpha: 1.0)

        segmentControl.selectedIndex = 2
    }

    // MARK: - HSegmentControlDataSource protocol
    func numberOfSegments(_ segmentControl: HSegmentControl) -> Int {
        return 5
    }

    func segmentControl(_ segmentControl: HSegmentControl, titleOfIndex index: Int) -> String {
        return ["Kavin","Sitharth", "Raj", "Selva", "Rajesh"][index]
    }

    func segmentControl(_ segmentControl: HSegmentControl, segmentBackgroundViewOfIndex index: Int) -> UIView {
        let view = UIView()
//        view.backgroundColor = UIColor(red: CGFloat(drand48()), green: CGFloat(drand48()), blue: CGFloat(drand48()), alpha: 1)
        return view
    }

    @IBAction func valueChanged(_ sender: AnyObject) {
        print("value did change to \((sender as! HSegmentControl).selectedIndex)")
    }
}