Powerful file downloads for iOS 7+ with NSURLSession in Swift.

TCBlobDownloadSwift makes it easy to quickly download one or several large file(s) from your backend or the Internet right into your app. Give it an URL, a directory (or not, it can also download into the user's tmp folder), a name (or not, it can also give your file a default name), and it will take care of everything.

See the Usage section for examples.

Features

• [x] File downloads with NSURLSession (including background downloads/pause/resume)
• [x] File management (download directory + customizable filename)
• [x] Download tasks configuration (cookies, timeout, number of concurrent connections...)
• [x] Progression/Completion Protocol (delegate style)
• [x] Progression/Completion Closures
• [x] Complete example project with concurrent file downloading

Requirements

• iOS 7.0+ / Mac OS X 10.9+

Installation

Import as an embedded framework

• Drag and drop TCBlobDownloadSwift.xcodeproj from the Finder to your opened project's file navigator.
• Project's Target -> Build Phases -> Target Dependencies -> add TCBlobDownloadSwift.framework.
• Click on the + button at the top left of the panel and select "New Copy Files Phase". Set the "Destination" to "Frameworks", and add TCBlobDownloadSwift.framework.

Import source files

For iOS 7 and other targets which do not support embedded frameworks, copy the source files (Source/*.swift}) into your project.

Usage

Before checking the iOS example project, here is how TCBlobDownloadSwift works in a few lines of code:

Closures

Coming!

Delegate

import TCBlobDownloadSwift

// Here is a simple delegate implementing TCBlobDownloadDelegate.
class DownloadHandler: NSObject, TCBlobDownloadDelegate {
  init() {}

  func download(download: TCBlobDownload, didProgress progress: Float, totalBytesWritten: Int64, totalBytesExpectedToWrite: Int64) {
    println("\(progress*100)% downloaded")
  }

  func download(download: TCBlobDownload, didFinishWithError error: NSError?, atLocation location: NSURL?) {
    println("file downloaded at \(location)")
  }
}

let fileURL = NSURL(string: "http://some.huge/file.mp4")
let download = TCBlobDownloadManager.sharedInstance
                                    .downloadFileAtURL(fileURL!, toDirectory: nil, withName: nil, andDelegate: DownloadHandler())

Roadmap

• [ ] Documentation set
• [ ] Full background download example
• [ ] File upload