This project contains some alternatives to UIActivityIndicatorView. Written in Swift 2.0 in Xcode 7.
GLSBouncingBarsActivityIndicatorView
GLSImageRotationsActivityIndicatorView
GLSSpinActivityIndicatorView
GLSZoomingDotsActivityIndicatorView
Use the files in the Classes directory as you would the UIActivityIndicatorView. e.g. startAnimating()!
See LICENSE file