UIView+ConstraintsHelper.swift

UIView+ConstraintsHelper.swift

//
//  UIView+ConstraintsHelper.swift
//
//  Created by Richard Adem on 5/17/16.
//  Copyright © 2016 Richard Adem. All rights reserved.
//

import UIKit

struct VFLManager {
    
    var options:NSLayoutFormatOptions
    var metrics:[String : AnyObject]?
    var views:[String : AnyObject]
    var view:UIView
    
    func add(vflString:String) {
        view.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: vflString
            , options: options
            , metrics: metrics
            , views: views))
    }
}

extension UIView {
    func setVFLWithOptions(options opts: NSLayoutFormatOptions
        , metrics: [String : AnyObject]?
        , views: [String : AnyObject]
        , block: (_:VFLManager) -> ()){
        
        let vflManager = VFLManager(options: opts, metrics: metrics, views: views, view: self)
        
        block(vflManager)
    }
}