Ionic framework one day training

Ionic framework one day training

• 1.
  Ionic Framework
 One DayTraining 17 January 2015 - Irvine, CA Troy Miles
• 2.
  Agenda JavaScript AngularJS PhoneGap/Cordova Plugins The Ionic Framework Debugging uirouter YP.com Google Maps Making Coffee!
• 3.
  Your clients Want goodlooking, well performing mobile apps They normally don’t care how you create them It is usually your choice of tools to use to give the clients the results they want
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  JavaScript
• 5.
  Quick History ofJavaScript Initial version built in 10 days by Brendan Eich Original name was LiveScript Greatly influenced by a language called Scheme Changed to please Sun Microsystems Converted into a curly brace language Renamed JavaScript
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  Why JavaScript Sucks? Itsuse of global variables It has strange scoping rules It thinks it is smarter than you
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  Why writing goodJS is hard? Most programmers don’t bother to learn it It is changed not embraced The page load has protected you
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  Why JS isbeautiful? It is a functional language, close to Lisp and Scheme than Java or C First class functions Dynamic objects Loose typing and more…
• 9.
  Keywords JavaScript has surprisinglyfew keywords break, case, catch, continue, debugger, default, delete, do, else, finally, for, function, if, in, instance, new return, switch, this, throw, try, typeof, var, while, with
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  Keywords not used class,enum, export, extends, import, super, implements, interface, let, package, private, protected, public, static, yield
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  Using keywords invariables Can’t be used as variables or parameters But can be used as properties Legal uses: a.import = “test”; a[“import”] = “test”; a = {import: “test”};
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  Why the weirdness? Whenthe Internet was young, pages were badly coded Both the DOM and JS interpreter tried to correct bad code The results were less than stellar
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  Coercion Attempts to forcetwo variables to be the same type Unfortunately the results are illogical Always use === and !== Never use == or !=
• 14.
  Hoisting JavaScript is functionscoped Variables have a two step creation process: declaration and assignment variables are always declared at the beginning of a function
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  Function Power! Functions arefirst class objects Functions can be treated like any other object They can make you code dynamic
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  Anonymous function Functions don’tneed to have a name Can help minimize global space pollution ex. function() {
 /* code goes here */
 }
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  Immediate functions Functions arenormally executed only when called It is possible to create a function executes itself ex. function superFunction(){
 /* code goes here */
 }();

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  Immediately Invoked Function Expression(IIFE) Has no name Immediately executed Used to create a namespaces Use in many JS libraries
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  IIFE (continued) (function() {
 /*Nothing inside of the function can be seen on
 on the outside, unless we want it to */
 }());
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  Object Literals A pairof curly braces surrounding name/value pairs Can appear anywhere an expression can The property’s name can be ANY string Quotes only need when the name is not a legal variable name
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  Object Literals var empty= {}; var name = {
 “first-name”: “Alan”,
 “last-name”: “Turing”
 };
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  Arrays vs. Objects Arraysare not true arrays Sort of a special kind of object literal Both can mix types Not the same Arrays inherit from Array.prototype Objects inherit from Object.prototype
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  More on objects JavaScriptobjects are always dynamic New properties can always be assigned There is no class in JavaScript
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  Closure defined In computerscience, a closure is a function or reference to a function together with a referencing environment—a table storing a reference to each of the non-local variables (also called free variables) of that function.[1] —Wikipedia
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  A bit morecomprehensible When an inner function has a longer lifetime than its outer function and retains access to the context in which it was created
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  Strict Mode Functional “strictmode” used heavily Eliminates many JavaScript silent errors Fixes some JavaScript mistakes https://developer.mozilla.org/en-US/docs/Web/ JavaScript/Reference/Strict_mode
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  AngularJS
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  AngularJS Created by MiškoHevery and Adam Abrons in 2009 JavaScript MVC 106 kb production version (minimized, not gzipped) Declarative programming for UI Imperative programming for business logic
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  AngularJS Key Features ModelView Controller (MVC) Data Binding HTML Templates Dependency Injection Deep Linking Directives
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  AngularJS <!DOCTYPE html>
 <html ng-app="moduleName">
 <headlang="en">
 <meta charset="UTF-8">
 <title>NG-Skeleton</title>
 </head>
 <body>
 <div ng-controller="aController">
 </div>
 <div ng-controller="anotherController">
 </div>
 
 <!-- if using jQuery it goes here -->
 <script src="../libs/angular.min.js"></script>
 <!-- other libs and script files -->
 </body>
 </html>

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  ng-app Declares the boundaryof an Angular app The first ng-app found will be auto-bootstrapped ng-app can optionally name a module Can encompass the entire page <html ng-app> Or only part of it, <div ng-app>
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  What the BrowserDoes? Loads the HTML Parses it into a Document Object Model or DOM The angular.js script is loaded and parse Angular waits for the DOMContentLoaded event AngularJS’ bootstrap code executed
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  DOMContentLoaded vs load event Theload event fires once everything has loaded The DOMContentLoaded event fires once the DOM has been created DOMContentLoaded doesn’t wait for CSS, images, or iFrames to load DOMContentLoaded fires well before load
• 34.
  AngularJS’ Bootstrap Bootstrap looksfor the ng-app directive There can only be one of these The module specification is optional The module specification tells the $injector service which defined module to load
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  Model View Controller UsesMVC or MVVM or MV* depends on who you ask The goal is clear separation of concerns The model is only concerned with data The view presents the data to the user The controller applies the business logic
• 36.
  Data Binding In Angular,binding is built into the framework Replaces text content of HTML element with the value of the expression {{ expression }} <ANY ng-bind=“expression”>…</ANY> <ANY class=“ng-bind: expression;”>…</ANY>
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  HTML Templates Many JavaScriptMVC Frameworks use a client-side templating engine AngularJS doesn’t Angular uses HTML as its templating engine No extra markup, no extra libraries
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  Dependency Injection A softwaredesign pattern that implements inversion of control and allows a program design to follow the dependency inversion principle Allows a dependency to be passed to an object Allows code to clearly state dependencies Leads to code which is easier to debug and test Makes it possible to minimize apps without breaking them
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  Dependency Injection The DIpattern in AngularJS looks funky due to JavaScript’s shortcomings The pattern is name of module, dot, name of provider, name of object, an array with the list of dependencies in strings and a function as the last item in the array tempApp.controller('CurrentCtrl', ['$scope', function ($scope) {
 $scope.temp = 17;
 }]);
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  Deep Linking Deep Linkingenables a website to restore state from a URL URL and bookmarks are key part of the web Early Single Page Apps lacked deep linking They broke SEO and user expectation
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  Directives “The coolest featureof AngularJS” - Misko Hervey Attach behavior to DOM elements Can nearly turn HTML into a DSL
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  Plain Old JavaScriptObjects Angular uses dirty checking to keep the model and view in sync Dirty checking runs equality checks over the data the view depends, it is a brute force method Watch expressions are run every time data could change Watch expression should be fast and idempotent
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  The methods onthe $scope $watch() $apply() $digest()
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  $watch() Watches for modelmutations $watch(watched expression/function, handler, …) Watch expression must be fast and idempotent
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  $apply() Called when youare transitioning from non-angular world into angular world calls $digest
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  $digest() A digest isjust plain old dirty checking It works on all browsers and is totally predictable
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  Digest Loop Possibility ofan endless loop Will only go 10 deep before exception is thrown NOT like a game loop
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  Module A collection ofconfiguration and run blocks which get applied to the app during bootstrap Most apps will have one module Most 3rd party libraries will come with their own You inject dependent modules into yours
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  Configuration Blocks Get executedduring the provider registration and configuration phase Only providers and constants can be injected into configuration blocks Shortcut methods available for some common configuration blocks
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  Configuration Shortcuts value(‘constantName’, 123) factory(‘factoryName’,function(){return 123;}) directive(‘directiveName’, …) filter(‘filterName’, …)
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  Run Blocks Closest thingAngular has to a main method Executed after services have been configured Typically contains code which is hard to unit test
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  Order of Execution Configurationblocks Run blocks Directive compile functions Controllers Directive link functions
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  $timeout guaranteed to fireafter current digest loop If you use a setTimeOut, you will also need to do $apply $timeout does this for you
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  PhoneGap/Cordova
• 55.
  The Brief Historyof Cordova 2009: 1st developed at an iPhoneDevCamp event 2009: Developers form a company, Nitobi 2011: Adobe acquires Nitobi 2011: Adobe open sources PhoneGap project to Apache 2012: Apache gives the project the name Cordova
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  What Cordova isn’t? Awebsite packaged in an app A converter which turns JavaScript into native code
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  How Cordova differsfrom PhoneGap? Cordova is an open source product It serves as the base platform for quite a few commercial implementations One of those is Adobe’s PhoneGap Others are IBM Worklight, Motorola Solutions RhoMobile Suite, Intel XDK, plus more.
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  Cordova CLI Command LineInterface Two types of commands, global & project
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  Global Commands create -creates a project help - display help text or help for a specific command
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  Project Commands info platform plugin prepare compile run serve build emulate
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  Directory structure config.xml -global configuration file hooks - scripts used to customize Cordova commands platforms - native application projects plugins - added plugins go here www - your app’s code (merges) - platform specific overrides
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  Hello Cordova Worldsteps 1. cordova create helloapp com.rnc.helloapp 2. cd helloapp 3. cordova platform add android 4. cordova build android 5. cordova run android or cordova serve
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  Plugins As of version3.0 Cordova is implemented mainly as a collection of plugins surrounding a small core Plugins are implemented in native code and/or JavaScript Without plugins your application can’t communicate with the device’s hardware Over 600 plugins currently available
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  Installing/Removing Plugins Find pluginsat: http://plugins.cordova.io/ cordova plugin add org.apache.cordova.device cordova plugin remove org.apache.cordova.device Two essential plugins are device & console Plugins not available until after deviceready event
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  Plugin Anatomy Documentation: doc/index.md Nativecode in src directory JavaScript in www directory
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  Using a Plugin Remember:You must wait for the deviceready event Read the plugin’s documentation Implement the functionality according to docs Best practice: Sniff for the property before use
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  Debugging First Look Twobrowsers have built-in remote debugging For Android, Chrome is your best friend menu -> More tools -> Inspect Devices For iOS, Safari is your best friend Preferences -> Advanced -> Show develop For both the device must be connected via USB
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  Adding Libraries Most popularopen source libraries will also work in a Cordova app Add the library with the script tag, same as always: <script src=“js/jquery.min.js”></script> For performance sake, place the minimized library in the www directory, don’t load from web
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  Simple Ajax Functionality Cordovaapps not bound by HTML same origin policy But accessible websites must be included on the whitelist By default access is allowed to all sites, but not recommended for production
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  Housekeeping At some pointin the app lifecycle, you may wish to update Cordova or one of the plugins Update Cordova: sudo npm update -g cordova Update a plugin: remove it and add it back BE CAREFUL - Newer versions may break your app
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  Problems with rawCordova No user interface No support for HTML templates No application framework
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  The Ionic Framework
• 73.
  The Ionic Framework? CombinesApache Cordova with Google's AngularJS along with lots custom JavaScript, HTML, and CSS3 to create purpose built mobile apps which perform like native ones and look beautiful
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  Supported Devices iOS 6+ Android4+ Windows Phone 8+ (coming) FireFox OS (coming)
• 75.
  Drifty Co. Founded in2012 by Ben Sperry (CEO) and Max Lynch (CTO) Based in Madison, WI Creators of Codiqa, JetStrap, and Ionic Raised $1 million from Arthur Ventures earlier this year
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  Are people actuallyusing it?
• 77.
  Mallzee Replaced their hand builtPhoneGap app with Ionic in May Excellent UI
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  Songhop The fastest wayto find new music 5 star rated iPhone only
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  Keychain Like Uber fortrucks iOS and Android version Scrapped prior version built with PhoneGap
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  Sworkit Created by RyanHanna alone Featured in the Health and Fitness section of the App Store Downloaded over 3 million times in the App Store, Google Play and Amazon Store
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  Modern Web Skills HTML5 / CSS 3 / JavaScript Comfortable with command line tools AngularJS Sass (optional)
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  Prerequisites Java SDK 6or 7 Android SDK + Eclipse/Android Studio Node / NPM Cordova Gulp Ionic
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  Why do Ineed Node? Node apps are built in JavaScript JavaScript runs on all platforms Node comes bundled with NPM, Node Package Manager It makes installing, running, and updating tools easy Hence Node is a popular way to ship tools
• 84.
  Is there aneasier way?
• 85.
  The Ionic Box InstallVirtualBox, its free and available for most platforms Install Vagrant, its free too Install the Ionic Box See blog post for complete instructions:
 http://therockncoder.blogspot.com/2014/10/getting- started-building-mobile-apps.html
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  Ionic and Cordova Ionicis built on top of Cordova It also wraps many of its commands Commands like build, platform, plugin all directly call Cordova It also adds its own like serve, which makes it easier to run apps in browser
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  Create ionic app ionicstart myApp <template> blank tabs sideMenu
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  Ionicons http://ionicons.com/ Can search from website Caneasily change size free & open source
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  ngCordova Cordova has alot of available plugins Plugins give access to the machine functions ngCordova "Angularizes" plugins for ready use You are always free to write your own wrapper code
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  What about tablets? Ionicsupports responsive design Ionic’s grid with CSS Flexbox support Side menu can be set auto open on wide displays
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  Workflow ionic serve Google Chromemobile emulator iOS Simulator / Android Emulator / Genymotion iOS / Android device
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  Crosswalk for Android Versionsof Android before 4.4 use Android’s no named default browser which is slower and less compliant than Chrome It also means you can’t be exactly sure how your Cordova app will perform on these phones Crosswalk allows you to specify a version of Chrome to run in your Android Cordova app
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  Crosswalk You can seeup to a 10x increase in HTML/CSS rendering and JavaScript performance Your app will grow 10-15 MB in size
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  Ways to breakup an app By file type Files are placed into directories by their type: js, html, etc. May be subdivided further: controllers, directives, etc By feature The files which make up a feature are placed into the same directories

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  Coffee! An ajax appwhich uses a third party services from YP.com for data and Google Maps for maps For those who have taken other classes from me, this app is simply too cool to die
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  Steps to makecoffee Make a side menu template app Modify menu markup Modify routes Add listings service Add lists
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  Steps… Add detail page Addmap page Add Google Maps Add markers to map Make markers clickable
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  Resources http://learn.ionicframework.com/ http://ionicframework.com/ https://angularjs.org/ http://www.appiconsizes.com/ http://therockncoder.blogspot.com/ https://twitter.com/therockncoder
• 99.
  Summary Cordova is aplatform which allows for the building of mobile apps using web technologies Ionic builds on top of that by providing a good looking performance driven UI and better developer tools Ionic uses AngularJS as its JavaScript MVC framework