滑动选择器

PPFSelectViewDemo

效果

PPFSelectView

引用

pod 'PPFSelectView', '~> 0.1.0'

怎么用

let l = PPFSelectView(color: UIColor.red, itemWidthRate: 0.2,itemHeight: 2)
l.frame.size = CGSize(width: 200, height: 40)
l.setAnimationType(.type0)
l.dataSource = self
l.delegate = self
view.addSubview(l)
l.reloadDataSource()//刷新!一定要调用一下这个

PPFSelectView_dataSource

// MARK: - PPFSelectView_dataSource
extension ViewController:PPFSelectView_dataSource {
    /// 有几个可选择对象
    func ppfSelectViewHasNumberOfItems(_ sView: PPFSelectView) -> Int {
        return 3
    }
    
    /// 当前索引要显示的View
    func ppfSelectView(_ sView: PPFSelectView, viewAtIndex index: Int) -> UIView {
        let l = UILabel()
        l.textAlignment = .center
        l.text = "\(index)"
        l.textColor = UIColor.black
        return l
    }
}

PPFSelectView_delegate

/// 点击的回调
extension ViewController:PPFSelectView_delegate {
    func ppfSelectView(_ sView: PPFSelectView, didSelectAtIndex index: Int) {
        print("已选中:\(index)")
    }
    func ppfSelectView(_ sView: PPFSelectView, animationDurationForBegin layer: CAShapeLayer) -> CFTimeInterval {
        return 0.3
    }
    func ppfSelectView(_ sView: PPFSelectView, animationDurationForEnd layer: CAShapeLayer) -> CFTimeInterval {
        return 0.2
    }
}