Time for action – controlling audio

Let's simulate our own little music player by creating user interface buttons that will control the audio calls as follows:

1. In the Chapter 6 folder, copy the Controlling Audio project folder to your desktop. You will notice several art assets, a ui.lua library, config.lua file, and a song2.mp3 file inside. You can download the project files accompanying this book from the Packt Publishing website.

   

2. In the same project folder, create a brand new main.lua file.

3. Load the audio file via loadStream(), name it music, and call the UI library. Also add it in a local variable called myMusic:

   local ui = require("ui")
   local music = audio.loadStream( "song2.mp3" ) local myMusicChannel

4. Create a local function called onPlayTouch() with an event parameter to play the audio file. Add an if statement that contains event.phase == "release" so that the music starts playing when the button releases. Apply the playBtn display object as a new UI button:

   local onPlayTouch = function...