iOS - Xcode walkthrough

1. Passing Data ->

2. Learning to Xcode Documetnation

3. State vs Binding

4. Debugging -> Ui didn't update

Passing Data

State vs Binding

State -> Parent

Binding -> Child

Binding -> Child2

Example

SRC: https://www.swiftdevjournal.com/passing-data-to-swiftui-views/

"some" keyword

var body: some View { // any type of View
        Text("Hello, World!")
    }

Feature	Playground	Xcworkspace
Purpose	Experimentation	Managing projects
File extension	.playground	.xcworkspace
Single file or container	Single file	Container
Live coding	Yes	No
Build applications	No	Yes
Include other projects	No	Yes

Showing Image from URL

0. Easy way

AsyncImage(url: URL(string: "https://image_url_address"))

1. Way API Requests

https://odenza.medium.com/how-to-display-image-from-url-string-in-swiftui-supporting-ios-13-8c988f8d24bc

2. Way URL

URL -> get Data

Why Image from URL?

1. Security

2. Size of App

3. RAM ->

using URL

extension String {
    func load() -> UIImage {
        
        do {
            guard let url = URL(string: self) else {
                return UIImage()
            }
            let data :Data = try Data(contentsOf: url)
            return UIImage(data: data) ?? UIImage()
        } catch {
            
        }
        
        return UIImage()
    }
}

Documentation

https://developer.apple.com/documentation/foundation/url_loading_system/fetching_website_data_into_memory