Architecting Qt Mobile Applications: Frameworks, Code Generators and Beyond
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This document summarizes Sandro Andrade's talk "Architecting Qt Mobile Applications: Frameworks, Code Generators and Beyond" presented at Akademy 2017. The talk introduces Meg, a code generator that enables the productive creation of modular RESTful servers and Qt mobile applications through templates. Currently available templates include a Sinatra RESTful server, Sinatra service plugins, and Qt mobile apps and plugins. A demo shows using Meg to generate a sample Sinatra RESTful server and plugins, and a corresponding Qt mobile client and plugins to access the server's REST API. Future work is discussed to expand Meg's capabilities.
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Architecting Qt Mobile Applications: Frameworks, Code Generators and Beyond
- 1. [email protected] @andradesandro Sandro Andrade Architecting Qt Mobile Applications Frameworks, Code Generators and Beyond Akademy 2017
- 4. What is this talk about?
- 5. What is this talk about?
- 6. What is this talk about? ● Qt offers a stable UI framework for cross- platform mobile applications development ● Large and complex Qt mobile applications still lack some architectural-level support ● A lot of functionalities are recurrent and amenable to automatic code generation
- 7. What is this talk about? ● Some Qt disabilities in mobile development: – Lack of high-level frameworks delivering modular and reusable architectural solutions for mobile apps – KDE Frameworks 5 is likely to be cumbersome and/or introduce unwanted dependencies – Lack of high-level reusable UI components (KDE Kirigami to the rescue)
- 8. What is this talk about? ● Some Qt disabilities in mobile development: – No built-in support for JSON-based RESTful communication (lack of a JSONListModel) – No built-in support for disconnected operations (with automatic sync upon reconnected) – No built-in cross-platform support for receiving push notifications – Issues with deployment of read-write files across platforms
- 9. What is this talk about? ● We’ve been working on some mobile Qt development projects at IFBA over the last 1.5 years ● Such Qt disabilities has motivated us to investigate to which extent such problems can be alleviated with the use of well- thought architectures and effective tooling
- 10. Introducing Meg = + Meg A lean dynamic QML-based architecture for Qt cross-platform mobile applications A code generator which Enables the productive creation of modular RESTful servers and Qt mobile applications
- 11. Introducing Meg ● Implemented as a Ruby Thor-based CLI ● Templates are specified in Embedded RuBy (ERB) ● Generators are modular (Thor with modules) ● Provides a JSONListModel QML object ● Automatic download of Google Material Icons
- 12. Introducing Meg ● Currently available templates: ● Sinatra RESTful server with modular architecture (sinatra-server) ● Ruby Sinatra RESTful service plug-in (sinatra-service- plugin) ● Simple Qt mobile app with plugin-based architecture (simple-app) ● Qt mobile RESTful app with plugin-based architecture (restful-app) ● Qt mobile RESTful client plug-in (restful-client-plugin)
- 13. Meg – quick demo ● Installing meg: – git clone https://github.com/sandroandrade/meg.git – install ruby – run ‘gem install bundler’ – Run ‘bundle install’ – CLI is in ‘./bin/meg’
- 14. Meg – quick demo ● Creating a simple Qt plugin-based mobile app: – ./bin/meg new SimpleApp -t simple-app ● Creating some plug-ins: – ./bin/meg generate plugin students -t basic-plugin -a simpleapp/ – ./bin/meg generate plugin teachers -t basic-plugin -a simpleapp/
- 15. Meg – quick demo ● Creating a modular Sinatra RESTful server: – ./bin/meg new myserver -t sinatra-server ● Creating some plug-ins: – ./bin/meg generate plugin Conference -t sinatra-service- plugin -a myserver/ acronym:string name:string city:string country:string venue:string start_date:datetime end_date:datetime – ./bin/meg generate plugin Speaker -t sinatra-service- plugin -a myserver/ name:string affiliation:string shortbio:string
- 16. Meg – quick demo ● Running the server: – run ‘rake db:migrate’ – populate database with some data – start the server: ‘ruby myserver.rb’ ● Checking the services: – curl http://localhost:4567/conferences | python -m json.tool – curl http://localhost:4567/speakers | python -m json.tool
- 17. Meg – quick demo ● Creating a mobile Qt RESTful client: – ./bin/meg new MyApp -t restful-app ● Creating the RESTful client plug-ins: – ./bin/meg generate plugin conferences -t restful-client- plugin -a myapp -i name -c action/ic_speaker_notes acronym:string name:string city:string venue:string start_date:datetime end_date:datetime – ./bin/meg generate plugin speakers -t restful-client-plugin -a myapp -i name -c action/ic_record_voice_over name:string affiliation:string shortbio:string
- 18. Meg – quick demo ● Qt RESTful client:
- 19. Meg – quick demo ● Future work: – Add templates for full CRUD support – Add template for kirigami-based UI workflows – Support relationships between models – Support push notification ● Try it! Contributions welcome!
- 20. Questions?