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Appcelerator Titanium Alloy tipstricks by Fokke Zandbergen
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Appcelerator Titanium Alloy tipstricks by Fokke Zandbergen

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Appcelerator Titanium Alloy tipstricks by Fokke Zandbergen …

Appcelerator Titanium Alloy tipstricks by Fokke Zandbergen

This is not his official account I just re uploaded it here to make it easier for people to find and learn.
you can follow him : http://fokkezb.nl/

Published in Technology , Business
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  • 1. July 23rd, 2013 London Titanium Alloy Tips & Tricks FOKKE ZANDBERGEN app imagineer
  • 2. Alloy Tips & Tricks
  • 3. Compilation process Not your mother's MVC TSS XML Views + = Definition = Models Controllers Assets config.json
  • 4. Compilation process Not your mother's MVC Definition = Models Controllers Assets config.json JS
  • 5. Compilation process Not your mother's MVC Definition = Models Controllers Assets config.json JSCommonJS
  • 6. Compilation process Not your mother's MVC Collections Sync Store Models Controllers Assets config.json JSCommonJS
  • 7. Compilation process Not your mother's MVC Collections Sync Store Models Controllers Assets config.json JSCommonJS
  • 8. Compilation process Not your mother's MVC Collections Sync Store Models Controllers Assets config.jsonAlloy.CFG JSCommonJS
  • 9. Compilation process Not your mother's MVC Collections Sync Store Models Controllers Assets config.jsonAlloy.CFG JSCommonJS
  • 10. Compiled controllers The first might be last function Controller() { ! // Controller functions function myFoo() { alert("Says bar"); } var $ = this; var exports = {}; ! // Parsed XML view $.__views.label = Ti.UI.createLabel({ id: "label" }); $.__views.label && $.addTopLevelView($.__views.label); _.extend($, $.__views); ! // Controler code $.myLabel.text = "Hello London!"; exports.myFoo = myFoo; _.extend($, exports); } var Alloy = require("alloy"), Backbone = Alloy.Backbone, _ = Alloy._; module.exports = Controller;
  • 11. Compiled controllers About $, exports and this $.label === $.__views.label === this.label; exports.label === undefined; exports.foo = 'bar'; $.bar = 'foo'; Inline code function myFunction() { ! $.label === $.__views.label; ! this.label === exports.label === undefined; ! ! $.foo === exports.foo; ! this.foo = undefined; exports.bar === undefined; } Functions
  • 12. Titanium Studio Shortcuts Be lazy ⇧⌘C New controller + view + style ⇧⌘Y New widget ⇧⌘M New model ⇧⌘I New migration More: http://go.fokkezb.nl/ttshortcuts
  • 13. Installing Alloy from Github Living on the edge sudo npm install -g git://github.com/appcelerator/alloy.git Rollback to stable sudo npm uninstall -g alloy sudo npm install -g alloy *Drop "sudo" on Windows
  • 14. Hacking Alloy Have the last word /app/assets/alloy.js /app/assets/alloy/backbone.js /app/assets/alloy/underscore.js /app/assets/alloy/sync/sql.js /app/themes/myTheme/assets/alloy/CFG.js • The SQLite sync adapter is not compatible with Backbone.js 1.x • Make sure you sync config.json changes to your CFG.js files Alloy.isTablet = function() { return (Ti.Platform.displayCaps.platformWidth > 800); } app/alloy.js .. or go wild and overwrite Extend via app.js
  • 15. WPATH Which Path | | Widget Path function WPATH(s) { var index = s.lastIndexOf("/"); var path = -1 === index ? "myWidget/" + s : s.substring(0, index) + "/myWidget/" + s.substring(index + 1); return path; } app/widgets/myWidget/assets/foo.png Resources/myWidget/foo.png app/widgets/myWidget/assets/one/two/three.png Resources/one/two/MyWidget/three.png Examples • Assets and libs the same • Place stuff in platform specific iphone, android folders • Place stuff in the images folder
  • 16. Custom sync adapters .. for widget models /app/widgets/my.widget/assets/alloy/sync/myAdapter.js Drop your sync adapter in: exports.definition = { config: { adapter: { type: 'my.widget/myAdapter' } } }; Use in widget models: /Resources/alloy/sync/my.widget/myAdapter.js It will end up in: /app/widgets/my.widget/models/myModel.js
  • 17. All-in-one widget Know the 'name' Bundle a group of widgets as one <Widget src="myMenus" /><!-- default: widget(.js) --> <Widget src="myMenus" name="slide" /> <Widget src="myMenus" name="drawer" /> *Available since Alloy 1.1 Specific controller per context <Widget src="myList" /><!-- default: widget(.js) --> <Widget src="myList" name="tab" /> <Widget src="myList" name="window" /> <Widget src="myList" name="view" /> Alloy.createWidget("nl.fokkezb.tweetsView", "widget", {      id: "myWidget",      foo: "bar" });
  • 18. Styleable & Themable widgets The . and # game Set ID and class of view components to same, globally unique value <Alloy> ! <Label id="myWidgetLabel" class="myWidgetLabel" /> </Alloy> Apply defaults styles using classes ".myWidgetLabel": { ! color: 'red' } "#myWidgetLabel": { ! color: 'blue' } Instruct developers using your widget to override using IDs More: http://go.fokkezb.nl/alloytssprio (widgets missing)
  • 19. __parentSymbol Who's your daddy? <Alloy> ! <Window> ! ! <Widget src="randomBgColor" /> ! </Window> </Alloy> __parentSymbol.backgroundColor = '#'+Math.floor(Math.random()*16777215).toString(16); app/widgets/randomBgColor/controllers/widget.js
  • 20. Stateful widgets Keeping track <Alloy> ! <Window class="container" layout="vertical"> ! ! <Widget src="stateful" /> ! ! <Widget src="stateful" /> ! </Window> </Alloy> var state = require(WPATH('state')); $.instanceCounter.text = state.counter++; exports.counter = 0; app/widgets/stateful/assets/state.js app/widgets/stateful/controllers/widget.js app/views/index.xml
  • 21. Data Binding 3 flavours <Model id="instance" src="myModel" instance="true" /> <Label id="a" text="{field}" /> <Label id="b" text="{singleton.field}" /> <Label id="c" text="{$.instance.field}" /> var $model = arguments[0] ? arguments[0]["$model"] : null; $.instance = Alloy.createModel("myModel"); $.__views.a.text = "undefined" != typeof $model.__transform["field"] ? $model.__transform["field"] : $model.get("field"); var __alloyId1 = function() { $.b.text = _.isFunction(Alloy.Models.singleton.transform) ? Alloy.Models.singleton.transform()["field"] : Alloy.Models.singleton.get("field"); }; Alloy.Models.singleton.on("fetch change destroy", __alloyId1); var __alloyId2 = function() { $.c.text = _.isFunction($.instance.transform) ? $.instance.transform()["field"] : $.instance.get("field"); }; $.instance.on("fetch change destroy", __alloyId2);
  • 22. Bind an existing model Workarounds function openDetail(e) { ! var model = col.get(e.rowData.modelId); ! model.__transform = myTransformer(model); // model.toJSON(); ! Alloy.createController('detail', { ! ! '$model': model ! }); } function openDetail(e) { ! var detailModel = col.get(e.rowData.modelId); ! detailModel.__transform = myTransformer(detailModel); ! detailModel.transform = function() { return this.__transform; }; ! Alloy.Models.detailModel = detailModel; ! Alloy.createController('detail'); } Pre-setting a singleton Emulating a dataCollection loop WARNING: No change listeners
  • 23. Main controller switching Skipping index.js var Alloy = require("alloy"), _ = Alloy._, Backbone = Alloy.Backbone; Alloy.createController("index"); • Alloy always requires index.xml app.js // $.index.open(); if (Ti.App.Properties.getBool('isLoggedIn', false)) { Alloy.createController("home"); } else { Alloy.createController("login"); } index.js <Alloy /> index.xml
  • 24. Reset your app.tss Clean slate 'Label[platform=android]': { // Instead of platform-dependent color: '#000' }   'Window': { // More common-sense default vs 'transparent' backgroundColor: '#fff' }   'Window[platform=android]': { // Never lightweight (deprecated) modal: false }   'TextField': { // More common-sense default vs un-styled borderStyle: Ti.UI.INPUT_BORDERSTYLE_ROUNDED }   'ImageView[platform=ios]': { // Never show ugly temporary image preventDefaultImage: true } } Discussion: http://go.fokkezb.nl/alloyreset
  • 25. @import TSS Or the power of alloy.jmk @import "reset.tss"; "Window": { ! backgroundColor: 'black' } Source: http://go.fokkezb.nl/alloyimport task("pre:compile", function(event, logger) { ! explodeImport(event, logger); }); task("post:compile", function(event, logger) { ! implodeImport(event, logger); }); app/alloy.jmk
  • 26. Jade 2 XML Be lazy like David Bankier <Alloy> <Window class="container"> <Label id="label" onClick="doClick">Hello, World</Label> </Window> </Alloy> Blog: http://go.fokkezb.nl/alloyjade Alloy Window.container Label#label(onClick="doClick") Hello, World app/views/index.jade • No need for closing tags • Advanced templating • Advanced conditions
  • 27. XML 2 TSS Be lazy like David Bankier <Alloy> <Window class="container"> <Label id="label" onClick="doClick">Hello, World</Label> </Window> </Alloy> Source: https://github.com/dbankier/xml2tss ".container": {} ".#label": {} xml2tss index.xml ../styles/index.tss • Will update existing TSS • Integrated in Alloy 1.2
  • 28. Less TSS Be lazy like David Bankier @primColor: "blue"; .bg (@color) { backgroundColor: $color } ".container" : { .bg($primColor); } Source: https://github.com/dbankier/ltss ".container" : { backgroundColor: "blue" } ltss index.ltss index.tss
  • 29. Detecting Alloy Using Alloy libs without Alloy var isAlloy = (typeof ENV_TEST === 'boolean'); • Alloy constants like OS_IOS don't exist at run-time • They are replaced by TRUE|FALSE during compile • Code blocks that will never execute are removed • In Vanilla Titanium they will be undefined var Alloy = require('alloy'); Alloy.infect && Alloy.infect(this); myLib.js or app.js (3.1+) Source: http://go.fokkezb.nl/alloydetect
  • 30. Wrapping Ti.UI.* components .. using widgets or CommonJS modules <ImageView image="http://my.im/age.png" /> Before <Widget src="ImageView" image="http://my.im/age.png" /> After: <ImageView module="My.UI" image="http://my.im/age.png" /> Coming in Alloy 1.2: • Pass on or intercept common parameters, functions and events /app/widgets/ImageView/controllers/widget.js require('My.UI').createImageView() <ImageView ns="require('My.UI')" image="http://my.im/age.png" /> Simple, durable workaround:
  • 31. Wrapping Ti.UI.* components Passing arguments exports.setText = function (text) { $.myVew.text = text.toUpperCase(); } _.each(['text', 'color'], function (pr) { var cam = pr[0].toUpperCase() + pr.substring(1); var get = exports['get' + cam] || ($['get' + cam] = function () { retur $.myVew[pr]; }); var set = exports['set' + cam] || ($['set' + cam] = function (val) { $.myVew[pr] = val; }); Object.defineProperty($, pr, { get: get, set: set }); }); exports.applyProperties = function(properties) { properties = _.omit(properties, 'id', '__parentSymbol', '__itemTemplate', '$model'); var apply = {}; _.each(properties, function (val, pr) { ! var fn = 'set' + pr[0].toUpperCase() + pr.substring(1); ! exports[fn] ? exports[fn](val) : (apply[pr] = val); }); _.isEmpty(apply) || $.myVew.applyProperties(apply); } exports.applyProperties(arguments[0]); • Looping _.keys($.myVew) would only give set properties • Add set/get on $ as so applyProperties can't find them • Define properties on $ as that's the final object • Filter Alloy properties as (__parentSymbol would give memory leak)
  • 32. Wrapping Ti.UI.* components Passing functions _.each(['resume', 'pause', 'hide'], function (fn) { if (!exports[fn]) { ! exports[fn] = $.myVew[fn]; } }); • Remember we already did setters and getters for properties
  • 33. Wrapping Ti.UI.* components Passing events exports.on = $.myVew.addEventListener; exports.off = $.myVew.removeEventListener; exports.trigger = $.myVew.fireEvent; • For (widget) controllers onClick translates to .on('click') <Widget src="ImageView" image="http://my.im/age.png" onClick="doClick" />
  • 34. Resources Must reads • Alloy docs http://go.fokkezb.nl/alloydocs • Backbone.js 0.9.2 http://go.fokkezb.nl/bb092 • Underscore.js http://go.fokkezb.nl/undscore • Moment.js http://go.fokkezb.nl/momentjs • Alloy Google Group http://go.fokkezb.nl/alloygroup • Alloy Q&A http://go.fokkezb.nl/alloyqa • Alloy changelog http://go.fokkezb.nl/alloylog • Alloy test apps http://go.fokkezb.nl/alloytests • Alloy compiler source http://go.fokkezb.nl/alloycompiler • Alloy widgets @ AlloyLove.com • Twitter: #TiAlloy http://go.fokkezb.nl/alloylinks
  • 35. Questions? mail@FokkeZB.nl www.FokkeZB.nl @FokkeZB