我正在尝试访问 CATextlayer 中的文本值，我可以访问其他值但无法访问此字符串属性，它甚至没有显示在智能上。还有其他方法可以访问它吗？我是 swift 的新手。我有以下内容：
let textLayer = CATextLayer()
textLayer.isHidden = true
textLayer.contentsScale = UIScreen.main.scale
textLayer.fontSize = 14
textLayer.font = UIFont(name: "textLayer = CATextLayer()
textLayer.isHidden = true
textLayer.contentsScale = UIScreen.main.scale
textLayer.fontSize = 14
textLayer.font = UIFont(name: "Avenir", size: textLayer.fontSize)
textLayer.alignmentMode = kCAAlignmentCenter", size:textLayer.fontSize)
textLayer.string = "someText"
textLayer.foregroundColor = textColor.cgColor
textLayer.backgroundColor = color.cgColor
textLayer.isHidden = false
textLayer.contentsScale = UIScreen.main.scale
textLayer.name="someText"
我想访问这个字符串属性值
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first
guard let point = touch?.location(in: cameraView) else { return }
print(self.selectedObject = cameraView.layer.sublayers![2].string!)
self.selectedObject = cameraView.layer.sublayers![2].name!//Textlayer
// print(cameraView.layer.sublayers![3])//shapelayer
}
该sublayers属性被声明为基类[CALayer]
要从特定CALayer 子类获取值，您必须强制转换类型
if let textLayer = cameraView.layer.sublayers?[2] as? CATextLayer {
print(textLayer.string!)
}
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