Migeran technical presentation at Prezi HQ on 27 November 2013. Contents: - Migeran Overview - Write iOS Apps in Java - Discover the Development Tools - Live Demo

1. Migeran: Java on iOS
is
K
Gergely
CEO
http://www.migeran.com
© 2013 Migeran Ltd. All rights reserved.

2. What is Migeran?
●
Java Runtime for iOS
●
Complete Workflow
–
Eclipse & Xcode
–
On Device Debugging
–
Apps
ate iOS
Cre
n Java
i
UI Designer
© 2013 Migeran Ltd. All rights reserved.
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3. Why Migeran?
●
●
Most mobile apps are built for both iOS and
Android
Standard development methods are suboptimal
–
Java for Android
–
Objective-C for iOS
id Code
Avo
ication
Dupl
Java / Android Developers → iOS Developers
© 2013 Migeran Ltd. All rights reserved.
3

4. Single Team with Migeran
Combined Effort = Faster Time to Market
© 2013 Migeran Ltd. All rights reserved.
4

5. Available in the App Store
© 2013 Migeran Ltd. All rights reserved.
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6. Migeran Architecture
Migeran Application
3rd Party Native Library Bindings
Standard Library Bindings
3rd Party
Native
Libraries
NatJ
Migeran Dalvik Enhancements
Dalvik VM
Java
Libraries

7. Migeran Development Environment

8. Migeran Runtime
●
Based on Android's Dalvik
–
●
Hybrid Ahead of Time Compiler and Interpreter
–
●
Some restrictions due to iOS licensing
Optimize for space & performance at the same time
Whole Program Optimization
–
Do not include unused Java classes
–
Compile into a single code module

9. 0
●
Eclipse & Xcode Integrated
Migeran Project in Eclipse
–
An Xcode Project is created
automatically
–
Resources are synchronized
to Xcode
–
Integrated build system
© 2013 Migeran Ltd. All rights reserved.
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10. 0
Migeran Build System
●
Ant is used as the driver layer
●
Simple project dependency management
●
Incremental compilation supported from Eclipse
●
Xcodebuild is used to:
–
Build native components
–
Package the final applications
© 2013 Migeran Ltd. All rights reserved.
ith CI
orks w
W
ervers
S
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11. NatJ: Easy to use native bindings
●
Express native bindings in declarative Java code
●
Full support for C and Objective-C constructs

12. Debugging from Eclipse

14. Support Objective-C Features
●
Objective-C features not supported in Java
–
Categories
–
Optional Interface Methods
ywhere
d Ever
Use
Challenge: How to support them in Java?
© 2013 Migeran Ltd. All rights reserved.
14

15. Support Objective-C Features (2)
Rule 1: Do not change the Java language!
Migeran Ground Ru
les
Rule 2: Ease of use!
© 2013 Migeran Ltd. All rights reserved.
15

16. Categories
●
●
Categories Mapped to Java Extension Classes
Eclipse Content Assist extended to handle
Categories
of Use
Ease
© 2013 Migeran Ltd. All rights reserved.
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17. Optional Interface Methods
Eclipse Quick Fix
generates stubs
for optional methods

18. Advanced Editing
© 2013 Migeran Ltd. All rights reserved.
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19. Unit & UI Testing Support
●
JUnit Support in Eclipse
–
●
Migeran Test Runner & Launch Configurations
Integrated Acceptance Testing
© 2013 Migeran Ltd. All rights reserved.
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20. Android Compatibility Library
●
Implements a subset of the Android API
–
Android Logger (android.util.Log)
–
Android Graphics (android.graphics.*): 2D Canvas
–
Lightweight implementation of Binder, Intents … etc.
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21. Migeran Application Framework
●
Some functions are too different on iOS
from Android
–
●
A common abstraction is required
Example: Background Task Framework
–
On iOS, background tasks are limited to
specific use cases
–
A similar API may be implemented on Android
© 2013 Migeran Ltd. All rights reserved.
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22. Roadmap
●
December 2013
–
–
●
Pre-Order Campaign on Indiegogo
2nd private beta release
January 2014
–
Exclusive Beta Release for the Campaign Contributors
–
Based on Android KitKat (4.4)
–
Includes first release of the Android Compatibility Library

23. Live Demo
●
Launch on Simulator and Device
●
Debugging on Device
●
User Interface Design
●
Category Support
●
Unit Testing
© 2013 Migeran Ltd. All rights reserved.
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24. Questions & Answers
http://www.migeran.com
© 2013 Migeran Ltd. All rights reserved.