Developing for Android with the Flash Platform

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Copyright 2010 Adobe Systems Incorporated. All rights reserved. Adobe con!dential. 1

Developing for Android with the Flash Platform

Mihai Corlan Platform Evangelist, Adobe

gotoAndSki(), June 2010

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What Android phones?

  Flash Player 10.1 runs only on Android 2.2 or newer

  Adobe AIR runs on Android 2.1 and 2.2

  Phones: Motorala Droid, HTC Desire, Google Nexus One (ARMv7 processor)

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API’s & Features

  Multi-Touch   Works on Desktop for both Flash Player 10.1 and AIR

  On Android works only in AIR

  System.Capabilities.TouchScreenType (!nger, none)

  Mobile text input   If no physical keyboard then the virtual one is bring on for text input !elds

  Accelerometer input   Accelerometer class allows developer to read acceleration values on X,Y, and Z axes

  Accelerometer.isSupported

  "ash.events.StatusEvent

  "ash.events.AccelerometerEvent (UPDATE)

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API’s and Features

  Screen Orientation   Stage object dispatches a StageOrientationEvent object when the orientation of the screen

containing the stage changes

  stage.orientation

  StageOrientationEvent.ORIENTATION_CHANGING

  StageOrientationEvent.ORIENTATION_CHANGE

  Camera and Mic access don’t work on mobile

  Geolocation   Geolocation class

  geoLocation.addEventListener(GeolocationEvent.UPDATE, handleLocationRequest);

  GeolocationEvent properties: latitude, longitude, altitude, heading, speed, H&V accuracy, timestamp

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  Listening for Hardware bu"ons (Back, Menu, Search)   Keyboard.MOBILE_BACK_KEY

  Keyboard.MOBILE_MENU_KEY

  Keyboard.MOBILE_SEARCH_KEY

  Focused Mode (single tap)

  Smartzoom (double tap)

  Full-Screen AS-only   stage.displayState = StageDisplayState.FULL_SCREEN;

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Integration with the device Phone, Messaging, Email, Browser:

  navigateToURL(new URLRequest("tel:” + “00407668”));

  navigateToURL(new URLRequest("sms:” + “00407668”);

  navigateToURL(new URLRequest("mailto:"+ “[email protected]”))

  navigateToURL(new URLRequest(“h#p://corlan.org”));

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Optimizations

  Smart Rendering   Flash content that’s not visible to the user will not be rendered and will receive limited CPU

time

  Sleep Mode   #e player will be put to sleep along with the device to conserve power

  Out-of-Memory Management   “click-to-play” bu"on that the user can control as necessary

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What languages/frameworks

  For browser you should stick to ActionScript projects. While Flex 4 works in browser, you might not get the performance you are looking for

  For AIR I found Flex 4 framework could be a good choice. Test for your speci!c use case because your mileage could vary

  A number of people created light-weight components for mobile development:   h"p://dgrigg.com/post.cfm/04/28/2010/Alpha-Release-of-Skinnable-Minimal-Components

  h"p://blog.kevinhoyt.org/?p=548

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Android SDK

  You have to download the Android SDK

  #is offers the command line tools necessary for installing/uninstalling APK !les, displaying the Console, screen capturing and so on

h"p://developer.android.com/sdk/

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Download Flash Player 10.1 and AIR runtime/SDK

  h"p://labs.adobe.com   AIR 2.5 Runtime Device (Éclair / FroYo) (APK !les)

  AIR 2.5 SDK Windows / Mac / Linux

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Installing APK !les to your Android

  Connect your phone to your computer using the USB cable

  Navigate to Android SDK/tools/ folder and run adb command:

adb devices

#is command should list your device

  Run this command to install APK !les:

adb install Runtime_Device_Froyo_20100517.apk

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Tools for developing AIR apps for Android

  Flash CS 5. You can install a plug-in for Android

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Tools for developing AIR apps for Android

Flash Builder 4

  Download AIR SDK 2.5 for your OS

  Create an AIR app

  If you use Flex, change the root node from WindowedApplication to Application

  Application descriptor !le:   <application xmlns="h!p://ns.adobe.com/air/application/2.5">

  <supportedPro!les>mobileDevice</supportedPro!les>

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Deploying from Flash Builder 4

  You can use Serge Jespers’s Package Assistant Pro h"p://www.webkitchen.be/package-assistant-pro/

  Can package your project as an APK !le

  #en you can use “adb install appname.apk” command

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Deploying from Flash Builder 4

Or you can create a script (sh / bat) that grabs the !les from bin-debug, package them as an APK !le, uninstall the app from the phone, install the new app

rm -f install.apk

/Users/mcorlan/Desktop/Android/android-sdk-mac_86/tools/adb uninstall app.aTabSpli"erSkunkwork

java -jar /Users/mcorlan/Desktop/Android/adt.jar -package -target apk -storetype pkcs12 -keystore /Users/mcorlan/Desktop/Android/mcorlan2.pfx -storepass 12cor13 install.apk main-app.xml main.swf

/Users/mcorlan/Desktop/Android/android-sdk-mac_86/tools/adb install -r install.apk

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Seeing the Android console

  Connect your Android Phone

  Enable debugging on device

  Open a terminal window and execute this command: adb logcat

  You’ll see all the traces and exceptions in the console

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Device Central CS5

  You can use Device Central CS 5 for testing your Flash Application

  Doesn’t support AIR

  You publish from Flash CS5 your application

  In Device Central you add a Nexus One pro!le and load the SWF

  #en you can use the emulator for testing the app on the phone, including the accelerometer, keyboard

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Resources

  Gotoandlearn.com – tutorial on installing the Android SDK, AIR runtime, and AIR extension for Flash CS5

  h"p://www.webkitchen.be/package-assistant-pro/

  h"p://%ashmobileblog.com

  h"p://corlan.org

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Q & A

#ank You!

h"p://corlan.org

Twi"er: mcorlan

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Packaging & Pricing – Available for purchase March 22, 2010

Flash Builder 4 Standard

$249 / $99 €175 / €69

Y30000 / Y12000

Flash Builder 4 Premium

$699 / $299 €519 / €229

Y85000 / Y36000

Adds profilers, network monitor, unit testing harness and integration, command-line build

Includes ColdFusion Builder

ColdFusion Builder

$299 €215

Y34000

Standalone or included in Flash Builder 4 Premium

Standalone or included in ColdFusion Builder

Free for Education Free for Education Includes Flash Builder 4 Standard

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Documents

Developing for Android with the Flash Platform