UIImageView与贴纸并在贴纸上添加手势
问题描述:
我有一个ImageView和贴纸上它现在我想在该贴纸上添加手势,一切工作正常,但是,我的贴纸从UIImageView的图层出去,如图所示。我只想在ImageView的边界内粘贴手势。UIImageView与贴纸并在贴纸上添加手势
以下是我的代码:
func addStickers(image: UIImage) {
gesture = "Stickers"
imgSticker = UIImageView(frame: CGRect.init(x: 0.0, y: 0.0, width: 80, height: 80))
imgSticker.center = view.center
imgSticker.image = image
imgSticker.contentMode = UIViewContentMode.scaleAspectFill
imgSticker.isUserInteractionEnabled = true
self.view.addSubview(imgSticker)
//imgImage.addSubview(imgSticker)
panGesture = UIPanGestureRecognizer.init(target: self, action: #selector(handlePanGesture(_:)))
panGesture.delegate = self
pinchGesture = UIPinchGestureRecognizer.init(target: self, action: #selector(handlePinchGesture(_:)))
pinchGesture.delegate = self
rotateGesture = UIRotationGestureRecognizer.init(target: self, action: #selector(handleRotateGesture(_:)))
rotateGesture.delegate = self
imgSticker.addGestureRecognizer(panGesture)
imgSticker.addGestureRecognizer(pinchGesture)
imgSticker.addGestureRecognizer(rotateGesture)
}
我调用这个函数和我的把手方法如下:
addStickers(image: #imageLiteral(resourceName: "Sticker1.png"))
FUNC handlePanGesture(_识别:UIPanGestureRecognizer){
if gesture == "Stickers" {
let recognizerCenter = recognizer.location(in: self .view)
imgSticker.center = recognizerCenter
} else {
let recognizerCenter = recognizer.location(in: self.view)
txtLabel.center = recognizerCenter
}
}
func handlePinchGesture(_ recognizer: UIPinchGestureRecognizer) {
if gesture == "Stickers" {
imgSticker.transform = imgSticker.transform.scaledBy(x: recognizer.scale, y: recognizer.scale)
recognizer.scale = 1.0
} else {
txtLabel.transform = txtLabel.transform.scaledBy(x: recognizer.scale, y: recognizer.scale)
recognizer.scale = 1.0
}
}
func handleRotateGesture(_ recognizer: UIRotationGestureRecognizer) {
if gesture == "Stickers" {
imgSticker.transform = imgSticker.transform.rotated(by: recognizer.rotation)
recognizer.rotation = 0.0
} else {
txtLabel.transform = txtLabel.transform.rotated(by: recognizer.rotation)
recognizer.rotation = 0.0
}
}
答
尝试将self.viewself.view.addSubview(imgSticker)
替换为正在编辑的图像的ImageView,即将贴图粘贴到其上的那个图像。希望能帮助到你。
所以,它应该是这样的 - imageView.addSubview(stickerOnImg)
。我之前有同样的问题,这对我有用。
我目前正在解决同样的问题。到目前为止,花费的时间并不多,但这里有一个潜在的有用链接 - 诀窍是*写*代码以使其保持在您希望保留的范围内。 https://*.com/questions/16460229/why-a-subview-wont-stay-in-the-parent-frame#16460566(它似乎是示例代码 - 是的,复数 - 所有的行为也是这样。) – dfd