我认为我已经做好了转换和搜索答案的工作,因为我刚刚开始使用Obj-C和Swift.但现在我遇到了一个我无法找到解决方案的错误.

ExpandableNavigation.swift

import Foundation
import UIKit;

class ExpandableNavigation: NSObject {

    var mainButton: UIButton;
    var menuItems: NSArray;
    var radius: CGFloat;
    var speed: CGFloat;
    var bounce: CGFloat;
    var bounceSpeed: CGFloat;
    var expanded: Bool;
    var transition: Bool;


    init(menuItems: NSArray,mainButton: UIButton,radius: CGFloat) {
            self.menuItems = menuItems;
            self.mainButton = mainButton;
            self.radius = radius;
            self.speed = 0.15;
            self.bounce = 0.225;
            self.bounceSpeed = 0.1;
            expanded = false;
            transition = false;

            super.init()

            if self.mainButton != nil {
                for view: UIView in self.menuItems {
                    view.center = self.mainButton.center;
                }

                self.mainButton.addTarget(self,action:"press",forControlEvents: UIControlEvents.TouchUpInside);
            }
    }

    func expand() -> Void {
        transition = true;

        UIView.animateWithDuration(0.15,animations: {
            self.mainButton.transform = CGAffineTransformMakeRotation(45.0 * M_PI/180)
        })

        for view: UIView in self.menuItems {
            var index: Int? = findIndex(self.menuItems,valueToFind: view);
            var oneOverCount: Float;
            if self.menuItems.count <= 1 {
                oneOverCount = 1.0;
            } else {
                oneOverCount = (1.0 / Float(self.menuItems.count - 1));
            }
            var indexOverCount: CGFloat = CGFloat(index!) * CGFloat(oneOverCount);
            var rad: CGFloat = (1.0 - CGFloat(indexOverCount)) * 90.0 * CGFloat(M_PI) / 180.0;
            var rotation: CGAffineTransform = CGAffineTransformMakeRotation(rad);
            var x: CGFloat = (self.radius + self.bounce * self.radius) * rotation.a;
            var y: CGFloat = (self.radius + self.bounce * self.radius) * rotation.c;
            var center: CGPoint = CGPointMake(view.center.x + x,view.center.y + y);
            UIView.animateWithDuration(self.speed,delay: self.speed * indexOverCount,options: UIViewAnimationOptions.CurveEaseIn,animations: {
                    view.center = center;
                },completion: {(finished: Bool) in
                    UIView.animateWithDuration(self.bounceSpeed,animations: {
                            var x: CGFloat = self.bounce * self.radius * rotation.a;
                            var y: CGFloat = self.bounce * self.radius * rotation.c;
                            var center: CGPoint = CGPointMake(view.center.x + x,view.center.y + y);
                            view.center = center;
                        });
                    if view == (self.menuItems.endIndex - 1) {
                        self.expanded = true;
                        self.transition = false;
                    }
                })

        }
    }

    func collapse() -> Void {
        transition = true;

    }

    @IBAction func press(sender: AnyObject) {
        if !self.transition {
            if !self.expanded {
                self.expand();
            } else {
                self.collapse();
            }
        }
    }

    func findIndex<T: Equatable>(array: T[],valueToFind: T) -> Int? {
        for (index,value) in enumerate(array) {
            if value == valueToFind {
                return index
            }
        }
        return nil
    }
}

ExpandableNavigation.swift出错

错误：类型注释与上下文类型“AnyObject”不匹配

在init()和expand()方法中都会出现此错误
for view：UIView in self.menuItems {
我尝试制作数组UIView [],但这导致其他错误.

ViewController.swift – 供参考

class ViewController: UIViewController {
@IBOutlet var expandNavMainButton: UIButton;
@IBOutlet var expandNavCheckInButton: UIButton;
@IBOutlet var expandNavReviewButton: UIButton;
@IBOutlet var expandNavPhotoButton: UIButton;
@IBOutlet var expandNavStatusButton: UIButton;
var expandableNavigation: ExpandableNavigation;

init(coder aDecoder: NSCoder!) {
    var buttons: NSArray = [expandNavCheckInButton,expandNavReviewButton,expandNavPhotoButton,expandNavStatusButton];
    var myRadius: CGFloat = 120.0
    self.expandableNavigation = ExpandableNavigation(menuItems: buttons,mainButton: self.expandNavMainButton,radius: myRadius);
    super.init(coder: aDecoder)
}