PromiseKit导读——Day1

任务

• 阅读README，并实现例子

总结

• PromiseKit的旨要：简化异步编程。
• 一个简单的例子

func fetchImage() {
    let url = URL(string: "https://lc-AosRamJS.cn-n1.lcfile.com/2a8MKW0O4uvk33n8lL8oRkf7XGbLqMPA/0bcbea56f6794765b571d18b3b3f2fd4")
    UIApplication.shared.isNetworkActivityIndicatorVisible = true
    let fetchImage = URLSession.shared.dataTask(.promise, with: url!).compactMap { UIImage(data: $0.data) }
    let fetchLocation = CLLocationManager.requestLocation().lastValue
    
    firstly {
        when(fulfilled: fetchImage, fetchLocation)
    }.done { image, location in
        self.imageView.image = image
        self.label.text = "\(location)"
    }.ensure {
        UIApplication.shared.isNetworkActivityIndicatorVisible = false
    }.catch { error in
        self.show(UIAlertController(title: error.localizedDescription, message: nil, preferredStyle: .alert), sender: self)
    }
}

• 代码实现

问题

• pod init在xcode14下失败问题
• The app's Info.plist must contain an “NSLocationWhenInUseUsageDescription” key with a string value explaining to the user how the app uses this data
• github token问题