UIImageView.image比UIImageView更大 [英] UIImageView.image bigger than UIImageView

问题描述

我在自定义tableview单元格中有一个UIImageView。当我设置UIimageview属性时，uiimageview.image比uiimageview大。为什么？
以下是代码：

I have a UIImageView in a custom tableview cell. When I set the UIimageview property, the uiimageview.image is bigger than the uiimageview. Why? Here is the code:

cell.imageView.image=[UIImage imageNamed:@"BlueMooseLogo.png"];

这是一个指向单元格的链接。蓝色方块是imageview的背景，蓝色驼鹿是图像。
https://docs.google.com/document/d / 1G7BYCriYbSGYHryP5OI7XHuVpqRKiNcBrxdY14wDgoA / edit？usp = sharing

And here is a link to what the cell looks like. The blue square is the background of the imageview, and the blue moose is the image. https://docs.google.com/document/d/1G7BYCriYbSGYHryP5OI7XHuVpqRKiNcBrxdY14wDgoA/edit?usp=sharing

如果它是相关的，在界面构建器中，在我选择uiimageview之后，我将视图设置为按比例缩放以填充。

If it's relevant, within interface builder, after I select the uiimageview, I have the view set to scale to fill.

推荐答案

我遇到了同样的问题，并尝试了很多方法来解决它，最后，我做到了。当您尝试将图像分配给UIImageView时，请将图像调整为缩略图图像，然后使用此缩略图图像进行显示。以下代码仅供您参考。

I've faced the same problem, and tried a lot ways to fix it, finally, I did it. When you try to assign the image to your UIImageView, please resize your image as a thumbnail image, and use this thumbnail image to display. The following code just for your reference.

static func resizeImage(image:UIImage, toTheSize size:CGSize) -> UIImage{
    let scale = CGFloat(max(size.width/image.size.width,
    size.height/image.size.height))
    let width:CGFloat  = image.size.width * scale
    let height:CGFloat = image.size.height * scale;

    let rr:CGRect = CGRectMake( 0, 0, width, height);

    UIGraphicsBeginImageContextWithOptions(size, false, 0);
    image.drawInRect(rr)
    let newImage = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext();
    return newImage
}

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