Audio

DUE Wed, 10/02, 2 pm

This assignment may be completed individually or in team of at most 2. You can partner differently for each lab.

For this iteration of Chatter, we’ll add audio handling to the app.

The amount of work to be done in the back end is minimal. There are a number of TODOs in this lab, to give you a chance to excercise your undertanding of the code. So this lab is not just cut-and-paste and it could take about 5 hours to complete.

Assignment specs

You must first upgrade one of the three alternative back-end server (note that mada.eecs.umich.edu was provided only to support the Chatter lab and none of the subsequent labs):

• Audio Back End

then:

• Audio SwiftUI

Objectives

• Learn how to use a finite-state machine (FSM) to transition UI/UX. <!– Android:
• Learn about enums and sealed classes on Android
• Learn usage of MediaPlayer and MediaRecorder
• Learn about affecting side effects from composables
• ViewModel
• Property delegation

iOS: –>

• Learn about enums with associated values and pattern matching in Swift
• Learn about property wrapper in Swift
• Learn about use of environment objects in SwiftUI
• Learn about affecting side effects from SwiftUI Views
• Learn usage of AVAudioPlayer and AVAudioRecorder of iOS

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Prepared for EECS 441 by Sugih Jamin

Last updated: September 15th, 2024