使用 kingfisher lib 插入授权头字段 [英] Insert Authorization Header field with kingfisher lib

问题描述

我正在使用 Kingfisher 显示来自 url 的图像，但我的端点需要授权标头.如何在 iOS 的 Kingfisher 或 SDWebImage 中使用这些 url?

I'm using Kingfisher to show image from url, but my endpoint requires a Authorization header. How to use these kind of url with Kingfisher or SDWebImage in iOS?

推荐答案

使用 Kingfisher，您需要创建一个请求修饰符(AnyModifier 类型)并将其作为参数传递到 options .kf.setImage 方法的一部分，然后使用尾随闭包来实际设置图像.

With Kingfisher you need to make a request modifier (of type AnyModifier) and pass it as a parameter in the options part of the .kf.setImage method, and then use the trailing closure to actually set the image.

示例:

import Kingfisher

let modifier = AnyModifier { request in
    var r = request
    // replace "Access-Token" with the field name you need, it's just an example
    r.setValue(<YOUR_TOKEN>, forHTTPHeaderField: "Access-Token")
    return r
}

let url = URL(string: <YOUR_URL>)

let iView = <YOUR_IMAGEVIEW>

iView.kf.setImage(with: url, options: [.requestModifier(modifier)]) { (image, error, type, url) in
    if error == nil && image != nil {
        // here the downloaded image is cached, now you need to set it to the imageView
        DispatchQueue.main.async {
            iView.image = image
        }
    } else {
        // handle the failure
        print(error)
    }
}

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