Xcode界面构建器中的图像资产大小 [英] Image asset size in Xcode interface builder

问题描述

如果我将图像视图添加到Xcode的界面生成器中，并且具有200 x 100的尺寸(Xcode中的尺寸)，我怎么知道将1x，2x和3x的图像资源制作成什么尺寸.

If I add an image view onto interface builder in Xcode and it has a size of 200 x 100 (size in Xcode), how do I know what size to make the image asset for 1x 2x and 3x.

如果我在Photoshop中将其设置为3x 600x300像素，然后尝试使用此图像，则在iPhone 7 plus上看起来不太清晰，所以我如何知道给定图像视图的图像资源应具有的分辨率大小

If I make it 600x300 pixels in photoshop for the 3x and then try to use this image it doesn't look very clear on an iPhone 7 plus so how do I know what resolution the image assets should be for a given image view size

推荐答案

如果我将图像视图添加到Xcode的界面生成器中，并且尺寸为200 x 100(在Xcode中为尺寸)，那么我如何知道将1x，2x和3x的图像资源制作成什么尺寸.

If I add an image view onto interface builder in Xcode and it has a size of 200 x 100 (size in Xcode), how do I know what size to make the image asset for 1x 2x and 3x.

分辨率是点和像素之间的对应关系.如果所需图片尺寸为200x100点，则可以提供以下三种图片尺寸:

Resolution is a matter of the correspondence between points and pixels. If the desired image size is 200x100 points, then you would provide these three image sizes:

• 1x:200x100像素
• 2倍:400x200像素
• 3倍:600x300像素

例如，如果我们在2x分辨率的设备上运行，则将以scale设置为2加载图像，以便2个像素对应1个点.

If we are running on, say, a 2x-resolution device, the image will be loaded with its scale set to 2, so that 2 pixels will correspond to 1 point.

请注意，您不应不要尝试通过简单地放大1x图像来制作3x图像.那显然很可怕.您应该以600x300的原始尺寸开始和缩小比例来获取2x和1x图像.

Note that you should not attempt to make the 3x image by simply upscaling the 1x image. That will obviously look terrible. You should start with a 600x300 original and downscale to get the 2x and 1x images.

这篇关于Xcode界面构建器中的图像资产大小的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！