问题描述
如果我有UIImage的数组，像这样：
If I have an array of UIImage like so:
newImageArray = [UIImage(named:"Red.png")!,
UIImage(named:"Green.png")!,
UIImage(named:"Blue.png")!, UIImage(named:"Yellow.png")!]
我怎样才能提取或确定某一指数以后的图像的文件名？例如：
How can I extract or determine the filename of an image of a certain index later on? For example:
println("The first image is \(newImageArray[0])")
而不是返回可读的文件名，则返回：
Instead of returning a readable filename, it returns:
The first image is <UIImage: 0x7fe211d2b1a0>
我可以转换这个输出成可读的文本，或者是有距离的UIImage数组？
Can I convert this output into readable text, or is there a different method of extracting filenames from UIImage arrays?
推荐答案
我有环顾四周，因为这在过去一直是个问题，我也。的UIImage不存储图像的文件名。我所做的，解决这个问题是不是图像阵列我用一本字典的键名和值作为图像。在我的for循环我摘录了每个项目的键和值到一个数组和对待他们。
I have had a look around as this has been a problem for me in the past also. UIImage does not store the filename of the image. What I did to solve the issue was instead of an image array I used a dictionary with the key as the filename and the value as the Image. In my for loop I extracted the key and value of each item into a tuple and dealt with them.
我不再有code，但作为一个快速模仿了什么，我没看到下面，（我希望这符合您的要求，因为我知道每个应用程序是不同的）
I no longer have the code but as a quick mock up of what I did see below, (I hope this fits your requirements as I know every application is different)
var imageDictionary = ["image1.png": UIImage(named: "image1.png"),
"image2.png": UIImage(named: "image2.png")]
，然后循环将看起来像：
and then the for loop will look like:
for (key, value) in imageDictionary {
println(key) // Deal with Key
println(value) // Deal with Value
}
......按我说的这个工作对我来说，我需要它的情况下，我希望你也可以用它！
...as I say this worked for me and the scenario I needed it for, I hope you can use it also!
祝你好运！
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