new/CommonFrame/UIButton+Virgil.swift

//
//  UIButton+Virgil.swift
//  DragonflySchool
//
//  Created by virgil on 16/2/20.
//  Copyright © 2016年 virgil. All rights reserved.
//

import UIKit

extension UIButton {

    func loadImage(imgUrl: String, defaultImage: String) {
        if imgUrl != "" {
            let url = URL(string: imgUrl)
            if url != nil {
               self.sd_setImage(with: url!, for: .normal, placeholderImage: UIImage(named: defaultImage) )

            } else {
                self.setImage(UIImage(named: defaultImage), for: .normal)
            }
        } else {
            self.setImage(UIImage(named: defaultImage), for: .normal)
        }

    }
    func loadImage(imgUrl: String, defaultImage: String, completedBlock:@escaping SDExternalCompletionBlock) {
        if imgUrl != "" {
            let url = URL(string: imgUrl)
            if url != nil {
                self.sd_setImage(with: url!, for: .normal) { (img, error, cacheType, url) in
                    completedBlock(img, error, cacheType, url)
                }
                //self.sd_setImage(with: url!, for: .normal, placeholderImage: UIImage(named: defaultImage) )

            } else {
                self.setImage(UIImage(named: defaultImage), for: .normal)
            }
        } else {
            self.setImage(UIImage(named: defaultImage), for: .normal)
        }

    }
    func loadBackgroudImage(imgUrl: String, defaultImage: String) {
        if imgUrl != "" {
            let url = URL(string: imgUrl)
            if url != nil {
                self.sd_setBackgroundImage(with: url!, for: .normal, placeholderImage: UIImage(named: defaultImage) )
            } else {
                self.setBackgroudImage(name: defaultImage)

            }
        } else {
            self.setBackgroudImage(name: defaultImage)
        }

    }
}