iOS Tutorial => Initialize with then

Example

This is similar in syntax to the example that initializes using positional constants, but requires the Then extension from https://github.com/devxoul/Then (attached below).

let label = UILabel().then {
    $0.textAlignment = .Center
    $0.textColor = UIColor.blackColor(
    $0.text = "Hello, World!"
}

The Then extension:

import Foundation

public protocol Then {}

extension Then 
{
    public func then(@noescape block: inout Self -> Void) -> Self {
        var copy = self
        block(&copy)
        return copy
    }
}

extension NSObject: Then {}

PDF - Download iOS for free

Previous Next

iOS

Fastest Entity Framework Extensions

Example

Got any iOS Question?

iOS

iOS Initialization idioms Initialize with then

Fastest Entity Framework Extensions

Example

Got any iOS Question?