Swift

• Synchronized
• Completion Handlers
• Declare closure
• @noescape
• Memory management

• Curried function in Swift (Alternated solution)

  func rideTypeFilter(type: RideType, fromRides rides: [Ride]) -> [Ride] {
    return rides.filter { $0.types.contains(type) }
  }
  
  func createRideTypeFilter(type: RideType) -> [Ride] -> [Ride] {
    return { (rides: [Ride]) -> [Ride] in
      return rideTypeFilter(type, fromRides: rides)
    }
  }
  
  let kidRideFilter = createRideTypeFilter(.Kids)
  
  print(kidRideFilter(parkRides))
  

• Functional Programming in Swift 1

• Functional Progrmming in Swift 2
• Swift guide to map filter reduce
• Map or Reduce with index
• Using bridging headers with framework targets is unsupported
• non-modular header inside framework module

• Capture whole UICollecitonView

    let seconds = 10.0
    let delay = seconds * Double(NSEC_PER_SEC)  // nanoseconds per seconds
    let dispatchTime = dispatch_time(DISPATCH_TIME_NOW, Int64(delay))
    // TODO: Simulate internel delay
    dispatch_after(dispatchTime, dispatch_get_main_queue(), { [weak self] in
        // Draw1
        let size = self?.dataSource.collectionView.contentSize
        UIGraphicsBeginImageContextWithOptions(size!, (self?.dataSource.collectionView.opaque)!, 0.0)
      self?.dataSource.collectionView.layer.renderInContext(UIGraphicsGetCurrentContext()!)
  
        // Draw2
        let heigh = (self?.dataSource.collectionView.contentSize.height)! - (self?.view.frame.height)! + 10
  
        let rect = CGRectMake(0, (self?.view.frame.height)!, CGRectGetWidth((self?.dataSource.collectionView.bounds)!), (self?.dataSource.collectionView.contentSize.height)! - heigh)
        self?.dataSource.collectionView.scrollRectToVisible(rect, animated: false)
        self?.dataSource.collectionView.layer.renderInContext(UIGraphicsGetCurrentContext()!)
  
        // Draw3
        let bottom = CGRectMake(0, heigh, CGRectGetWidth((self?.dataSource.collectionView.bounds)!), heigh)
        self?.dataSource.collectionView.scrollRectToVisible(bottom, animated: false)
        self?.dataSource.collectionView.layer.renderInContext(UIGraphicsGetCurrentContext()!)
  
        let image = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
  
        UIImageWriteToSavedPhotosAlbum(image!, nil, nil, nil);
    })
  

• Swift pattern matching in detail
• Global-vs-static-function-swift/
• Swift Imports
• solid-design-principle-using-swift