DevelopingFOSDEM 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

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FOSDEM Companion● FOSDEM schedule app for Android● Source code available on GitHub

https://github.com/cbeyls/fosdem-companion-android

● Published on:

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~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 scratchFragments, 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

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Features

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Features: Sessions

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Prev. Next

Features: Maps

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Features: Speakers

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Features: Live Mode

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ArchitectureActivity

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Activity

Fragments

Loaders

Database Layer

UI

Data

Architecture: UIFragments everywhere

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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.

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Days

Tracks

Events PersonsBookmarks

Links Events-Pers

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

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

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What’s new for 2015:Material Design

New text styles

New iconsToolbar

Material tabs (custom)

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What’s new for 2015:Material Design

Ripple effects (Android 5 only)

CardView

Floating Action Button (custom)

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What’s new for 2015:Material Design

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The End.

Thank you for watching !

github.com/cbeyls/fosdem-companion-android

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