我有一个自定义的UIView类,它带有多个参数,并覆盖了一个空的故事板UIView(子类为MultiPositionTarget类而不是UIview),如下图所示。共9次观看。)>
// Initialize the targets
target1 = MultiPositionTarget(.zero,"targetTemp.png","David","Target")
target1.parentVC = self
targetList.append(target1)
但是,它不接受参数。并且仅加载视图。这是我的下课:
class MultiPositionTarget: UIView{
var targetName: String!
var bottomLabelName: String!
var imageName: String!
var isSelected: Bool!
var labelTop: UILabel!
var labelBottom: UILabel!
var parentVC: SelectTargetViewController!
init(_ frame: CGRect,_ imagName: String,_ targetname: String,_ targetlabel: String){
self.imageName = imagName
self.targetName = targetname
self.bottomLabelName = targetlabel
super.init(frame: frame)
setUp()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
setUp()
}
func setUp(){
let viewWidth = self.bounds.width
let viewHeight = self.bounds.height
// Add top label
labelTop = UILabel(frame: CGRect(x: 0, y: 0, width: viewWidth, height: viewHeight/5))
//labelTop.center = CGPoint(x: 160, y: 285)
labelTop.textAlignment = .center
labelTop.font = UIFont(name:"System",size:6)
labelTop.text = self.imageName
labelTop.textColor = UIColor.white
labelTop.backgroundColor = hexStringToUIColor(hex: "#770B2C")
//labelTop.alpha = 0.5
self.addSubview(labelTop)
let image = UIImage(named: "targetTemp.png")
let imageView = UIImageView(image: image!)
imageView.frame = CGRect(x: 0, y: (viewHeight-viewHeight * 4/5), width: viewWidth, height: (viewHeight * 4/5))
self.addSubview(imageView)
// Add bottom Label
labelBottom = UILabel(frame: CGRect(x: 0, y: (viewHeight * 4/5), width: viewWidth, height: viewHeight/5))
//labelBottom.center = CGPoint(x: 160, y: 285)
labelBottom.textAlignment = .center
labelBottom.text = self.bottomLabelName
labelBottom.font = UIFont(name:"System",size:10)
labelBottom.textColor = UIColor.white
labelBottom.backgroundColor = hexStringToUIColor(hex: "770B2C")
labelBottom.alpha = 0.95
self.addSubview(labelBottom)
self.isUserInteractionEnabled = true
let viewTap = UITapGestureRecognizer(target: self, action: #selector(singleTap))
self.addGestureRecognizer(viewTap)
}
}
感谢您的帮助或提示。预先感谢堆栈溢出系列。
<<
此行正在创建一个
新
视图:
target1 = MultiPositionTarget(.zero,"targetTemp.png","David","Target")
新视图与屏幕上显示的视图无关。实际上,新视图根本不在屏幕上,因为您尚未将其添加到视图层次结构中。即使您这样做,它也是不可见的,因为它的帧为零。
简而言之,您不能调用自定义初始化程序并且也
在情节提要中设计视图。您也可以在情节提要中或在代码中初始化所需的属性。
如果还要初始化情节提要中的属性,则可以使用imageName
修改bottomLabelName
,targetName
和@IBInsepctable
:@IBInsepctable var targetName: String!
@IBInsepctable var bottomLabelName: String!
@IBInsepctable var imageName: String!
// or, if you want to directly select an image from the storyboard:
// @IBInsepctable var image: UIImage!
这样,这些属性将显示在情节提要中的属性检查器中。
如果要在代码中进行初始化,则必须使用赋值语句而不是初始化程序进行设置:target1.targetName = "David"
target1.bottomLabelName = "Target"
target1.imageName = "targetTemp.png"
target1.parentVC = self
targetList.append(target1)