Adventures in Cross Platform

My Talk from Day 2 of TiConf US 2014 on cross-platform lessons learnt.

Transcript

1. Adventures in cross platform Jason Kneen
2. +BTPO
   ,OFFO http://twitter/jasonkneen http://github.com/jasonkneen http://jasonified.com http://bouncingfish.com App Developer, TCE Certified Titanium “Titan”
3. • Breakdown pricing; Core, iOS, Android • Factor in platform, form factors • Include costs for AppStore submissions, re-submissions Pricing
4. Design Retina Dimensions No font details Designed for iOS
5. • Acknowledge OS differences (Nav, back buttons) • Educate the client / designer • Give examples / links to tools • Send them images folder structure Design
6. • Real devices • hdpi, ldpi, etc • Multiple OSs • Don’t forget 2.3.x Testing
7. • TestFlight • Installrapp Delivery
8. • Free, easy • Fast • Google APIs, Play support, simple “hack” • Great GPS, Mapping tools • Android first! Genymotion
9. Android development before Genymotion
10. Android development after Genymotion
11. • See changes (almost) instantly • Works on simulator, emulator, device • Instantly resolve platform differences as you go • Don’t get “locked in” to one platform • But, there be dragons! Use TiShadow / Liveview
12. • Separation of business logic & UI • Isolate code with OS_IOS, OS_ANDROID • Platform, formfactor specific elements • Only relevant code / files are included in a build • Makes cross-plaform easier Alloy
13. • Separate business logic • APIs, Social, GPS etc • Better memory management • Easier to re-use commonJS
14. • Define granular classes • Test layouts on both platforms • app.tss for global classes • “reset” for Android • Platform specific overrides app.tss, classes
15. • Use dp/dip (ti.ui.defaultunit) • Avoid fixed widths / heights, unless.. • Top, Left, Bottom, Right is the same on all devices • %age and fluid layouts • Dynamic buttons Flexible layouts
16. • Very granular • Long, NotLong, Landscape, Portrait • Keep it simple • Retina images and Android ! ! Density Images
17. • iOS style stretchable images • Splash screens • Android version of leftCap, topCap • Editor built-in to Android SDK • http://9patch.fokkezb.nl/ ! 9-Patch images
18. • Reduce “over the bridge” calls • TableViews - classname • ImageViews vs Views • ListViews over TableViews • Reduce views, especially in tables Android Performance
19. • Views = screens • Swipe between (great for prototyping / demos) • Disable manual swiping • Simple view stack management • Super-fast and smooth animation on Android ScrollableView Navigation
20. • Simple “inheritance” for Alloy Controllers • Re-use controllers, views • Create cross-platform template wrappers Base Controllers
21. • <require src=“controllerName”/> • Latest Alloy supports require/widgets with children • Create a wrapper template controller Require templates
22. • Little-known feature of Alloy • Override Alloy Tags to provide per-platform support • Create your own tags! • Not a replacement for Widgets, just different The “module” attribute
24. Thank you!
25. +BTPO
    ,OFFO http://twitter/jasonkneen http://github.com/jasonkneen http://jasonified.com http://bouncingfish.com