![]() This indicates that the method may raise an error and as a best practice, you should gracefully handle the error and show an appropriate error message to the user. When you’re coding, you’ll see methods that have the throws keyword. If you’d like a longer read, check out the Swift error handling documentation. The storyboard will allow actual input processing from the user and in our case, it will be done so by using the button we created.Learn how to handle your errors and crashes gracefully in Swift with try catch blocks and more! You’ll see the most common error handling code samples below. This can be done using AVPlayerFoundation with the help of the storyboard that we created. AVPlayer requires a link to the actual mp4 file, and not a link to another video player or to a page. In order to get people started we provide Swift Playgrounds, demonstration. There are several methods that we can implement using the AVPlayerFoundation object, like the play/pause functionality common in almost all audio media apps. Please note that YouTube links are not supported with AVPlayer as the links arent direct links to the video file, but rather links to the page or player itself. First, we hope that learning to program with AudioKit is easy for anybody. Pausing and Resuming sound using AVAudioPlayer Note: the question mark is used to first make sure that input is not null, avoiding errors when testing. play(), and so to access the Audioplayer object and play the content we use player?.play(). To play the file, the function used is.Here, try! is important because it catches the error if no such file exists. try! AVAudioPlayer(contentsOf: url) transfers the player object. The audio player expects an NSURL, so next we use the fileURLWithPath: method to convert the NSString to an NSURL.Here happybirthday is the name of the file, whereas the ofType parameter is the type of mile ( mp3, wav, etc.) is a method to locate the file in Xcode.References will be made to “ player“, or any variable name. “ player” is now an AVAudioPlayer object.This can be done by creating a folder in the package named as “Sounds” or any name of choice. You must import the audio file in Xcode, or else it won’t work.Player = try! AVAudioPlayer(contentsOf: url) Let url = (forResource: "happybirthday", withExtension: "mp3") This is how you can use it to play an mp3 file: Control relative playback level for each sound you are playing. Play sounds from files or memory buffers. Although this object traditionally uses files of type “.wav”, we can use the in-built methods to modify the function to play an MP3 file. Using an audio player you can: Play sounds of any duration. The AVAudioPlayer is an object that allows you to play audio through a file or buffer. To play any sound in Swift, we need the AVAudioPlayer frameworks. Play an MP3 File using AVAudioPlayer in Swift For this reason, the most common IBAction is the “Touch up Inside” which acts like a normal button triggered when pressed and released. There are several actions that can trigger a button such as releasing the button, holding a button, or the most common clicking a button.Name this function “playOrPause”, as it will help with playing or pausing the sound later on. For our button, we can simply create this function by opening the Assistant, shortcut: Control + Option + Command + Enter, and while holding the Control key drag the button on the code editor. Piano is a convenient and easy-to-use wrapper around the AVFoundation and UIHapticFeedback frameworks, leveraging the full capabilities of the Taptic Engine, while following strict Apple guidelines to preserve battery life. For Action elements, that require input from the user like buttons, checkboxes, or textfields, we need to create an Action function that runs every time a button is clicked, held or released. Easily play combinations of sound effects and Taptic Engine vibrations on iOS.To add the elements to our canvas, simply drag and drop the elements from the library. To add elements like buttons, labels etc, we can browse through the library (Indicated by the “+” button) on our storyboard page.For this tutorial, we will be using a simple label and button as shown: To do this, simply open Xcode and select new project, or use the shortcut Cmd + N. After you will need to edit the default Main.Storyboard file, and customize it for your needs. To see the frameworks responsible for audio is Swift, we will need to create an Xcode Project File. In this tutorial, we discuss the main and easiest methods of playing an MP3 File in Swift Making the Storyboard The basic Xcode firmware contains the AVFoundation module, but the constraint to using it is you will only able to play sound with “.wav” extension and is not able to play MP3 sound.
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