flex and flash are two heads better than one l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Flex and Flash : Are Two Heads Better Than One? PowerPoint Presentation
Download Presentation
Flex and Flash : Are Two Heads Better Than One?

Loading in 2 Seconds...

play fullscreen
1 / 28

Flex and Flash : Are Two Heads Better Than One? - PowerPoint PPT Presentation


  • 452 Views
  • Uploaded on

Flex and Flash : Are Two Heads Better Than One? Speaker Information Windows-based Developer - Since ‘85 Senior ColdFusion MX Developer - Since ‘99 Technical Instructor - Since ‘85 Flash Developer - Since ’99 Flex Developer – Since ’05 theo@teratech.com http://therush.wordpress.com

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Flex and Flash : Are Two Heads Better Than One?' - ostinmannual


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
speaker information
Speaker Information
  • Windows-based Developer - Since ‘85
  • Senior ColdFusion MX Developer - Since ‘99
  • Technical Instructor - Since ‘85
  • Flash Developer - Since ’99
  • Flex Developer – Since ’05

theo@teratech.com

http://therush.wordpress.com

presentation agenda
Presentation Agenda
  • Advantages of Flash and Flex
  • Flash and Flex Audience
  • Producing the Same Results (kinda)
  • Everything Old is New Again
  • Using LocalConnection
  • Using ExternalInterface
  • Other Considerations
advantages flash
AdvantagesFlash
  • Longevity
  • Thousands of Flash related resources
  • Thousands of community created components and samples
  • Great authoring tool for designers
  • Visual drawing environment
advantages flex
AdvantagesFlex
  • Improved ASv3 architecture
  • Improved components
  • Developer-centric Eclipse based development environment
  • Predefined effects and transitions
the flash audience
The Flash Audience

Timelines

Layers

Stage

Designer

Canvas

MovieClip

the flex audience
The Flex Audience

Actionscript

Tags

Data Services

Developer

Perspectives

Source View

producing the same results kinda
Producing the Same Results (kinda)

Version 9 only

Version 8 and below

in the bad ol e days
In the “Bad Ol’e Days” …
  • Used getUrl() and fscommand() to communicate from Flash to JavaScript.
  • Used setVariable() to communicate from JavaScript to Flash.
  • fscommand() used VBScript that could conflict with other VBScript on the page and can only pass one string parameter.
everything old is new again
Everything Old is New Again

LocalConnection

  • Invoke methods between Flash apps/movies
  • Pass data between Flash apps/movies

ExternalInterface

using localconnection why use localconnection
Using LocalConnectionWhy use LocalConnection?
  • Supported by Flash Player version 6 and above
  • Uses a one-way “Channel” to communicate
  • Supports asynchronous communication
  • Pass multiple variables
using localconnection how does it work step 1
Using LocalConnectionHow does it work? Step 1

SENDER:

  • Create a new LocalConnection object (1)
  • Use send() method of the localconnection object (2)

1) myLC:LocalConnection = new LocalConnection();

2) myLC.send(swf1, myName, name_txt.text);

using localconnection how does it work step 2
Using LocalConnectionHow does it work? Step 2

RECIEVER:

  • Create a new LocalConnection object (1)
  • Prepare to receive commands (2)
  • Define function that will be called by SENDER (3)

1) myLC:LocalConnection = new LocalConnection();

2) myLC.connect(swf1);

3) myLC.myName = function(param) {

reciever_txt.text = param;

}

using localconnection how does it work
Using LocalConnectionHow does it work?

setClock

clockStopped

Provides direct one-way communication between swfs

using exteranalinterface why use externalinterface
Using ExteranalInterfaceWhy use ExternalInterface?
  • Supports synchronous communication
  • Easier to implement
  • Uses JavaScript as a “proxy” between
  • Pass multiple variables
  • Supports multiple data types

Note: Only supported by Flash Player version 8 above

using externalinterface how does this work step 1
Using ExternalInterfaceHow does this work? Step 1

SEND TO JS:

  • Import ExternalInterface class
  • Use call() method of ExternalInterface object

Import flash.external.ExternalInterface

ExternalInterface .call(“alert”, “Hello from Flash”);

using externalinterface how does this work step 2
Using ExternalInterfaceHow does this work? Step 2

RECIEVE FROM JS:

  • Import ExternalInterface class
  • Use addCallBack() method of ExternalInterface object

Import flash.external.ExternalInterface

ExternalInterface.addCallBack(“tweenMe”, this, tweenMe);

using externalinterface how does this work step 3
Using ExternalInterfaceHow does this work? Step 3

SEND TO FLASH:

  • Get reference to Flash object
  • Use object reference to call Flash function

// for IE use

myFlash = window[“flashmovie”];

// otherwise use

myFlash = document[“flashmovie”];

myFlash.tweenMe(“Hello from JS”)

using externalinterface got another example
Using ExternalInterface Got another example?

The African Country Guide ver .5

other considerations
Other Considerations
  • Flash 8 Security Model
  • Frame Rate
other considerations flash 8 security model
Other ConsiderationsFlash 8 Security Model
  • By default, local SWFs can no longer contact the Internet, perform HTTP communication, or communicate with local HTML files.
  • SWF and HTML content from non-local URLs may no longer load any content (SWF, HTML, PNG, and so on) from local paths.
  • Use localConnection.allowDomain to permit cross-domain scripting.
  • Use a crossdomain.xml policy file to permit cross-scripting operations.
other considerations flash 8 security model cont
Other ConsiderationsFlash 8 Security Model (cont.)
  • Use allowScriptAccess to handle communication with Javascript.
  • allowScriptAccess
    • Never: outbound scripting fails
    • Always: outbound scripting succeeds (default)
    • sameDomain: outbound scripting allowed only if swf resides in same domain (default in FP 8+)
other considerations frame rate
Other ConsiderationsFrame Rate
  • Flex’s default frame rate is 24
  • Adjust your Flash movie accordingly
  • You can reset the default Flex frame rate
  • Open Project Properties >> Flex Compiler
  • Add the following into "Additional compiler arguments:" in single line:

-default-frame-rate int

Note: The maximum frame rate is limited to machine performance, if this value is set too high the player will simply run at the fastest rate that it can on the given machine.

additional resources
Additional Resources
  • http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=tn_16243
  • http://livedocs.macromedia.com/flex/2/langref/flash/net/LocalConnection.html
  • http://www.adobe.com/devnet/flash/articles/external_interface_05.html
  • http://livedocs.macromedia.com/flex/2/langref/flash/external/ExternalInterface.html
  • http://therush.wordpress.com
additional resources28
Additional Resources

Flash / JavaScript Integration Kit (Beta)

http://weblogs.macromedia.com/flashjavascript/

Flex-Ajax Bridge

http://labs.adobe.com/wiki/index.php/Flex_Framework:FABridge