CVox

Meet CVox, a client mobile app for classic audio book website Librivox (https://librivox.org/) running on Oreo (API 26).

User Interface

This app targets from Android Marshmallow (API 23) to Oreo (API 26) and applies some Material Design guidelines.

• SearchView using configuration in manifest files which define “android.app.default_searchable” and “android.app.searchable” tag
• Alert-themed activities
• Animation for activity display and image loading

Networking Handling and Concurrent Programming

• Retrieve the list of new audio book from archive.org (RSS)
• Retrieve the list of new podcast from librivox.org (RSS)
• Retrieve the list of new blog feeds from librivox (RSS)
• Lookup book’s details and list of tracks information based on book’ id (JSON)
• Increase async task priority by executing in executor thread pool

Asynchronous list image loading

• Asynchronously download and load bitmap to ImageView by matching "tag"
• Cancel previous download task for new re-use view (view holder pattern)

Media Streaming

Implement a media service to stream audio tracks (based on https://www.sitepoint.com/a-step-by-step-guide-to-building-an-android-audio-player-app/).

Media Notification

Implement Notification Channel for Oreo compatibility

Data Parsing (XML and JSON)

CVox uses AsynTask to parse:

• XML (using XmlPullParser)
• JSON (using JsonReader)

Screenshots

Main

Podcast

Blog

Comment

Book detail

Book detail (landscape)

Buffering

Playing (lanscape)

Playing

Search