关于image set里面”Multiple”,”Single Vector”和”Vector with overrides”

前天留下来的问题
昨天咨询了下几位开发结果居然都没有答案(人家根本就用不到这个说…)
同时也发现xcode里面的确存有好多小”死角”, 因为google了一下也没有找到非常完整的有人解释的
只有一些闲杂的讨论里面有相关的内容
先整起来如果发现有更好的再来更新吧~

When I go to image set, I only see scale factors where Image type is in this video. In addition when you click on that you get Multiple, single vector and vector with override as options. Did things change ? what should I do now? or did I just not follow the step properly?

I think that “multiple” allows you to put any type of image such as jpeg, png, ….(to be short, it is like a default setting), and the other options are just specific options about the type of image that you have such as vectors for example. When you use those, you don’t need to have different sizes, Xcode will adjust the images by itself on any devices. It is very convenient.

Yes, vectors are the best choice. It saves you to resize the image for each device. It all depends on the images that you have. Let’s say that you designed images for your app to jpeg or png format for example, with these type of image you will need to use “multiple”.In the other hand, if you designed as vectors, you will have to change the scale factors to “single vector”. I prefer to use multiple because I’m not thsat good at making vector image.

Actually Vector itself is not a type but vector images are of type “.pdf”. To create a vector image, you can use the famous Photoshop, Sketch 3. you can use also Affinity Designer (available on the Appstore at $49.99 but you can head on their website and get the trial version for free to see if it will fit your expectations). There is a bunch of good vectors application on the Appstore and that I know, these 3 I listed above are well rated for vector assets. Yes Indeed, you are right. Vectors image are more resourceful than jpeg.

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