如何使用 Swift 从资产加载特定图像 [重复]

Question

:

Accessing an image with specific resolution in the Asset Catalog (1 answer)

Closed 3 years ago .

I'm new to Swift and I want to load a special image from assets. For example I have:

image 1 for iphone 4s = green-square@2x.png
image 2 for iphone 5/5s = green-square-Retina@2x.png
image 3 for iphone 6s = green-square@3x.png

and I want to load for iphone 6 a specific image like

self.GSquare = SKSpriteNode(imageNamed: "./Images.xcassets/green-square-Retina@2x.png")

Is it possible?

Answer 1

你不能直接用@2x或@3x加载图片，系统会自动选择合适的图片，只需使用UIImage指定名称：

UIImage(named: "green-square-Retina")

Answer 2

Since swift 3.0 there is more convenient way: #imageLiterals here is text example. And below animated example from here :

Answer 3

You can easily pick image from asset without UIImage(named: "green-square-Retina") .

Instead use the image object directly from bundle.
Start typing the image name and you will get suggestions with actual image from bundle. It is advisable practice and less prone to error.

See this Stackoverflow answer for reference.