The obvious battery issue with an iPhone is we want it to last as long as we require it. Now with every passing year, although they are shipped embedded with high-end processors, better display with higher resolution but the progress in terms of battery technology is not at par. Before getting any deeper let me tell you that there are two factors that need to be taken care of parallel or optimized together for experiencing the best phase of your iPhone battery life or any other apple device.
Swift is a new programming language that is purely compatible with objective C. This makes it possible to use objective C file code in Swift file. Apple claims the co-existence of Swift and Objective C in an application but, this does not relate to re-using old classes made in Objective-C whilst building new classes in Swift. The reason being as Objective-C is a platform-independent language unlike Swift is platform-dependent. Now, implementing non-platform-dependent code in Swift won’t be fruitful. henceforth, writing platform dependent code in Swift would be absolutely fine.
In order to create beautiful Background View Using UIWebView in Objective-C & Swift 3.0
Do Pre-work: Processing the Video
Prepare a video that you desire to play as background. There are hundreds of software and web applications that help in converting video to GIF file and also crop them into the iPhone screen size for best result. This guide tell in detail how to do that and more resources are available online. Here I will use software GIF Brewery.
An Apple Developer Account is the primary requirement to publish your iOS application on the Apple App Store. The same account serves the purpose of multiple application submission. You can watch the video to set up your Apple developer account or follow the step mentioned below to quickly create an iOS Developer Account.