let randomColor = UIColor.randomColor()
let hexColor = UIColor.randomColor("#ffffff")
let rgb = UIColor.red.getRGBWithColor() 

let randomColor = UIColor.randomColor()
let hexColor = UIColor.randomColor("#ffffff")
let rgb = UIColor.red.getRGBWithColor() 

To note here, need to cooperate with OC, we create a OC any file, Xcode will prompt us to generate a bridge - Bridging - the Header file XXX. H, here we need # import < CommonCrypto/CommonCrypto.h>, Command + B compiler through. Complete

let md5 = "password".getMd5()
let sha1 = "password".getSha1()

let redImage = UIImage.imageWithColor(color: .red)

let customSizeImage = UIImage(named: "image").imageWithNewSize(size: mySize)

let cycleImage = UIImage(named: "image")?.clipToCycle(withBorder: 1, withColor: .red)

"alert like android toast"
view.showToast(withString: "I'm a toast", 1.5, 2.5)

let cachePath = cacheDir()
        let documentPath = documentDir()
        let tempPath = tempDir()
        
        getDirectoryCache(path) { (size) in
            // get all the file sizes through the path
        }
        
        cleanFolder(path) { (completed) in
            // remove all files by the path
        }

"Refresh For TableView , CollectionView O ScrollView"
 let refresh = JSRefreshControl()
 tableView.addSubview(refresh)
refresh.addTarget(self, action: #selector(your function), for: .valueChanged)

"now you can to refresh"
refresh.beginRefreshing()
refresh.endRefreshing()

"http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4" for test
JSDownLoadManager.shareInstance.downLoadWithInfo(urlName: url, statusType: { (status: JSDownLoadState) in
      //
    }, progresesType: { (progress) in
      //
    }, totalSize: { (fileSize) in
      //
    }) { (filePath) in
      //
    }
    
    // JSDownLoadManager.shareInstance.resumeWithURL(url: url)
    // JSDownLoadManager.shareInstance.pauseWithURL(url: url!)
    // JSDownLoadManager.shareInstance.cancelWithURL(url: url!)
    // JSDownLoadManager.shareInstance.cancelAndCleanWithURl(url: url!)
    // JSDownLoadManager.shareInstance.cancelAll()

There will be more, if i have time