nsarray – 带有数组和UIView的Swift循环中的注释错误

概述我认为采用一个小的Obj-C库并将其转换为 Swift是一个很好的学习实验.由于我最终想在应用程序中使用此库,因此我在此处找到了Path app菜单示例： https://github.com/yourabi/PathMenuExample 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. ExpandableNavig 我认为采用一个小的Obj-C库并将其转换为 Swift是一个很好的学习实验.由于我最终想在应用程序中使用此库,因此我在此处找到了Path app菜单示例： https://github.com/yourabi/PathMenuExample

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 Foundationimport 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)}

为了安全起见,Swift不会为你进行任何隐式的施法.它不会在没有显式强制转换的情况下将AnyObject(NSArray存储的类型)强制转换为UIVIEw.您应该执行以下 *** 作：

for obj : AnyObject in menuItems {    if let vIEw = obj as? UIVIEw {        vIEw.center = self.mainbutton.center;    }}

这将使用AnyObject循环遍历菜单项数组,并在将obj作为一个视图投射之前检查obj是否为视图.

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