如何随机滑动视图

Question

在我的viewController中，我有6个视图。 顶视图是源视图，底视图是目标视图。 我想在源视图以及目标视图上添加随机化器。 我想随机改变视角。因此，请给我任何解决方案。 我想随机滑动源视图和目标视图的位置。 下面是我的代码...

@IBOutlet weak var circle_source: UIView!
@IBOutlet weak var circle_destination: UIView!
@IBOutlet weak var square_source: UIView!
@IBOutlet weak var square_destination: UIView!
@IBOutlet weak var triangle_source: UIView!
@IBOutlet weak var triangle_destination: UIView!

Answer 1

class VC: UIViewController {
    @IBOutlet weak var circle_source: UIView!
    @IBOutlet weak var circle_destination: UIView!
    @IBOutlet weak var square_source: UIView!
    @IBOutlet weak var square_destination: UIView!
    @IBOutlet weak var triangle_source: UIView!
    @IBOutlet weak var triangle_destination: UIView!

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

        let allViews = [circle_source, circle_destination, square_source, square_destination, triangle_source, triangle_destination].compactMap { $0 }
        let positions = allViews.map { $0.frame.origin }.shuffled() // randomize all posible positions
        positions.enumerated().forEach { (index, position) in
            allViews[index].frame.origin = position
        }
    }
}

extension Array {
    func shuffled() -> [Element] {
        var results = [Element]()
        var indexes = (0 ..< count).map { $0 }
        while indexes.count > 0 {
            let indexOfIndexes = Int(arc4random_uniform(UInt32(indexes.count)))
            let index = indexes[indexOfIndexes]
            results.append(self[index])
            indexes.remove(at: indexOfIndexes)
        }
        return results
    }

}