ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Displaying HTML content in mobile apps
package {
import flash.display.MovieClip;
import flash.media.StageWebView;
import flash.geom.Rectangle;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
}
public class StageWebViewExample extends MovieClip{
}
var webView:StageWebView = new StageWebView();
public function StageWebViewExample()
{
webView.stage = this.stage;
webView.viewPort = new Rectangle( 0, 0, stage.stageWidth, stage.stageHeight );
webView.loadURL( "http://www.adobe.com" );
}
Focus
stage.addEventListener( KeyboardEvent.KEY_DOWN, onKey );
private function onKey( event:KeyboardEvent ):void
{
if( event.keyCode == Keyboard.BACK && webView.isHistoryBackEnabled )
{
trace("back");
webView.historyBack();
event.preventDefault();
}
if( event.keyCode == Keyboard.SEARCH && webView.isHistoryForwardEnabled )
{
trace("forward");
webView.historyForward();
}
}
Even though it is not a display object, the StageWebView class contains members that allow you to manage the focus
transitions into and out of the control.
When the StageWebView object gains focus, it dispatches a focusIn event. You use this event to manage the focus
elements in your application, if necessary.
When the StageWebView relinquishes the focus, it dispatches a focusOut event. A StageWebView instance can
relinquish focus when a user “tabs” past the first or last control on the web page using a device trackball or directional
arrows. The direction property of the event object lets you know whether the focus flow is rising up past the top of
the page or down through the bottom of the page. Use this information to assign focus to the appropriate display object
above or below the StageWebView.
On iOS, focus cannot be set programmatically. StageWebView dispatches focusIn and focusOut events with the
direction property of FocusEvent set to none. If the user touches inside the StageWebView, the focusIn event is
dispatched. If the user touches outside the StageWebView, the focusOut event is dispatched.
Last updated 6/6/2012
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