Developing FOSDEM Companion How to build a modern, user-friendly schedule app for Android Christophe Beyls FOSDEM 2015

About the Speaker ● Mobile developer from Brussels ● Developed a few apps during my spare time @BladeCoder 2

FOSDEM Companion ● FOSDEM schedule app for Android ● Source code available on GitHub https://github.com /cbeyls/fosdem-companion-android ● Published on: 3 ~2000 installs (2014)

History ● 2010: Original fosdem-android app by Michaël Uyttersprot, Pieter Iserbyt & Christophe Vandeplas ● 2012: Fork with small fixes by Christopher Orr ● 2013: Fork with Android 4 design (Action Bar) by Raphael Kallensee ● 2014: Rewritten from scratch Fragments, loaders, new DB layer ● 2015: Updated with Material Design. 4

Goals ● Fully Open Source (no proprietary libraries) ● Very fast ● Works offline ● Simple modern UI ● Tablet optimized track view ● Reference implementation of a few Android patterns ● Backwards compatible up to Android 2.1 5

Features 6

Features: Sessions 7 Prev. Next

Features: Maps 8

Features: Speakers 9

Features: Live Mode 10

Architecture Activity 11 Activity Fragments Loaders Database Layer UI Data

Architecture: UI Fragments everywhere 12

Architecture: Database ● No ORM library. Complex SQL Queries. ● Full Text indexes on (sub)titles, speaker names ● DB layer provides methods to map Cursor to Object model. 13 Days Tracks Events Persons Bookmarks Links Events-Pers

What’s new for 2015 Display the session in progress with a different color on track list. 14

What’s new for 2015 Improved notifications display on Android 5 and Android Wear. 15

What’s new for 2015: Material Design New text styles New icons Toolbar Material tabs (custom) 16

What’s new for 2015: Material Design Ripple effects (Android 5 only) CardView Floating Action Button (custom) 17

What’s new for 2015: Material Design 18

The End. Thank you for watching ! github.com/cbeyls/fosdem-companion-android 19 @BladeCoder