打印图像尺寸-错误：“尺寸”使用不正确

Question

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {

    if let originalImage = info["UIImagePickercontrollerOriginalImage"] {
        print(originalImage.size)
    }

}

xCode给我错误

  

“歧义使用'size'”

有什么帮助吗？

Answer 1

您有两个问题：

1. originalImage是AnyObject，而不是UIImage。
2. 您为didFinishPickingMediaInfo签名错误。

您的固定代码为：

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    if let originalImage = info["UIImagePickercontrollerOriginalImage"] as? UIImage {
        print(originalImage.size)
    }
}

Answer 2

我建议使用Swift 5.0的代码---> func imagePickerController（_ picker：UIImagePickerController，didFinishPickingMediaWithInfo info：[UIImagePickerController.InfoKey：Any]）{

    if let originalImage = info[UIImagePickerController.InfoKey.originalImage] as? UIImage {
        print(originalImage.size)
    }
}

Answer 3

您需要

if let originalImage = info["UIImagePickercontrollerOriginalImage"] as? UIImage {--}

info是[String : AnyObject]，因此您需要将AnyObject强制转换为UIImage