Qt as Developer Platform Tuukka Ahoniemi Digia Plc @ MoMo "Mobile Software Development Development - 3 years later", Tallinn 11.04.11

1. Qt as Developer Platform
MoMo, Tallinna, 11.4.2011
Tuukka Ahoniemi
Senior Technical Trainer
Digia Plc

2. Qt as Developer ”Platform”
• ”Platform”?
2 © 2011 Digia Plc

3. ”Platform”, or …
Symbian
???
MeeGo
Code
Embedded Linux
Desktop OSs
(Android)
3 © 2011 Digia Plc

4. Cross-Platform APIs
• Cross-platform Qt APIs are
wrappers around native services
Application 1 Application 2 Application 3
Qt APIs
Qt
Qt/Windows Qt/Mac Qt/Symbian
Win32 GDI Carbon / Cocoa S60 / OpenC
Windows Kernel Mac Symbian
HW
4

5. Developing with Qt
• High-level OOP, C++
• Signals’n’slots
• Good documentation
• Unified tools
• Quick development
• Especially Qt Quick!
5 © 2011 Digia Plc

6. Device Reach, Symbian
• ~100M active Symbian phones that support Qt
• Starting from S60 3rd ed.
• Another 100M Symbian phones to be sold more
• EMEA, India, China
6 © 2011 Digia Plc

7. MeeGo?
• ”Research platform”
• One device this year
• It is open source
• It’s not only Nokia who’s working with MeeGo…
• Netbooks, IVIs, etc…
7 © 2011 Digia Plc

8. Future Prospects –
Still Lots of Market Potential!
WP
MeeGo
Symbian Time factor unclear
S40/S30
2-3 years?
Time ??
8 © 2011 Digia Plc

9. Distribution of Qt Apps
• OVI Store
• Qt Quick just about getting supported…
• Free publishing
• Symbian Signing required
• OVI store signs for you
9 © 2011 Digia Plc

10. Why Go Qt?
• Easy to learn, Easy to master
• Efficient
• Good Ecosystem
• Reachability
10 © 2011 Digia Plc

11. http://qt.nokia.com/qt-in-use
“For 15 years, Qt has helped hundreds of
thousands of developers and companies:
• Develop advanced and highly innovative applications and
devices
• Cut their development time by nearly 50%.
• Deploy 50% faster because of better code
maintainability
• Reduce their code by more than 50%”
11 © 2011 Digia Plc

12. Obstacles
• Tools (getting there!)
• OVI store (getting there!)
• Previously had missing features in mobile platforms
• Lots of workarounds required
• Qt Quick rather new and still evolving
• Qt Components
• Best practices
• North America markets
12 © 2011 Digia Plc

13. ”Nokia sells Qt to Digia”
• Not exactly
• Qt as technology is owned and maintained by Nokia
• Nokia’s interest is in mobile platforms
• The commercial Qt business was sold to Digia
• Commercial licenses for desktop/embedded
• Support the Qt Community
13 © 2011 Digia Plc

14. Thank You!
tuukka.ahoniemi@digia.com