You can pass a bitmap between two custom classes?

I have two custom as3, TriviaGame and TriviaQuestion classes, and I try to retrieve a bitmap stored in TriviaQuestion and have found it impossible to date.

It seems that the root of my problem, is that this bitmap is somehow void in my GetImage function, even if it is class that has been defined previously in ImageLoaded() data. The only time where I am able to access the information of the bitmap (in order to add it to the display) is inside ImageLoaded().

In TriviaQuestion.as, loading the image:

private function XMLLoadedHandler (e:Event):void
        {
            xml = new XML(e.target.data);
            
            // grab title
            titleFormat = new TextFormat( font, 25, color, true, null, null, null, null, "center" );
            titleText = CreateText( xml[0].attribute("title"), titleFormat, (stageProps.stageWidth/2), (0 + margins), (stageProps.stageWidth) );
            
            // get questions/answers
            var qList:XMLList = xml.item;
            totalQuestions = qList.length();
            questions = new Array();
            
            for ( var i:int = 0; i < totalQuestions; i++ )
            {
                var myItem:XML = xml.item[i];
                var temp:TriviaQuestion = new TriviaQuestion();
                
                // set question class data
                temp.SetQuestion( myItem.question );
                if ( "image" in myItem )
                {
                    temp.SetImageProps( myItem.image, myItem.image.attribute("position") );
                }
                var answers:XMLList = myItem.answer;
                temp.SetAnswers( answers );
                temp.SetHint( myItem.hint, xml[0].attribute("ptsPerHint") );
                temp.SetFact( myItem.fact );
                temp.SetPotentialPoints( xml[0].attribute("ptsPerQuestion") );
                
                questions[i] = temp;
            }
            
            AssembleQuestion();
        }

In TriviaQuestion.as, set the class data:

public function SetImageProps( url:String, attr:String ):void
         {
            imgLoader = new Loader;
            imgLoader.contentLoaderInfo.addEventListener( Event.COMPLETE, ImageLoaded, false, 0, true );
            imgLoader.load( new URLRequest( url ) );
            
            position = attr;
        }
        
        public function ImageLoaded(e:Event):void
        {
            bitmap = LoaderInfo(e.target).content as Bitmap;
        }

In TriviaGame.as MakeQuestionSprite()

private function MakeQuestionSprite( s:Shape ):void
         {
            if ( "image" in xml.item[currentQuestion] )
            {
                var myPos:String = questions[currentQuestion].GetPosition();
                var myImg:Bitmap = questions[currentQuestion].GetImage();
                errorText.text = "Img: " + myImg.width;
            }
            var myQ:String = questions[currentQuestion].GetQuestion();
            questionText = new TextField();
            questionFormat = new TextFormat( font, 15, color, null, null, null, null, null, "center" );
            
            if ( "image" in xml.item[currentQuestion] )
            {
                if ( myPos == "right" )
                {
                    myImg.x = stageProps.stageWidth - margins - myImg.width;
                    //myImg.y = margins + s.y + (s.height / 2);
                    //myImg.visible = true;
                    //questionText = CreateText( myQ, questionFormat, margins, myImg.y, (stageProps.stageWidth - margins - myImg.width) );
                }
                //questionSprite.addChild( myImg );
            }
            else
            {
                questionText = CreateText( myQ, questionFormat, margins, (margins + s.y + s.height / 2), (stageProps.stageWidth - margins) );
            }
            
            questionSprite.addChild( questionText ); 
        }

In TriviaQuestion.as, GetImage

public function GetImage ():Bitmap
         {
            var copy:Bitmap = new Bitmap( bitmap.bitmapData.clone() );
            return copy;
        }

You could try to copy your bitmap image until it's ready. When I did this test he kept fail with the same messages that you receive, even after a different syntax in many trials. But when I split the TriviaQuestion test class and added an event listener (see the text in bold below) for once the charger has been filled, then I was able to recover the new bitmap. My two examples classes are based on your examples:

TriviaGame

package {}
import flash.display.Sprite;
Import TriviaQuestion;
Import 12345678910111213import;
import flash.display.BitmapData;
import flash.display.DisplayObject;
import flash.display.Loader;
import flash.events.Event;

SerializableAttribute public class TriviaGame extends Sprite {}

questions of private var: Array;
private var q1:TriviaQuestion;

public void TriviaGame() {}
issues = new Array();
Q1 = new TriviaQuestion();
questions.push (Q1);

MakeQuestionSprite();
}

private void MakeQuestionSprite (): void {}
var myTriviaQuestion:TriviaQuestion = issues [0];
myTriviaQuestion.addEventListener ("Ready", addNewBitmap);
this.addChild (myTriviaQuestion);
}

private void addNewBitmap(e:Event):void {}
var mybitmap:Bitmap = issues [0]. GetImage ();
MyBitmap.x = 400;
this.addChild (mybitmap);

}

} / / end of class
}

----------------------------------------

TriviaQuestion

package {}
Import 12345678910111213import;
import flash.display.Loader;
import flash.events.Event;
import flash.net.URLRequest;
import flash.display.LoaderInfo;
import flash.display.Sprite;
import flash.display.BitmapData;

SerializableAttribute public class TriviaQuestion extends Sprite {}

private var imgLoader:Loader;
public var bitmap2:Bitmap;
private var position: String;
private var _copy:Bitmap;

public void TriviaQuestion() {}
SetImageProps ("frog4.jpg");
}

public void SetImageProps (url: String, attr:String = "" "): void
{
imgLoader = new loader;
imgLoader.contentLoaderInfo.addEventListener (Event.COMPLETE, ImageLoaded, false, 0, true);
imgLoader.load (new URLRequest (url));

position = attr;

}

public void ImageLoaded(e:Event):void
{
bitmap2 = new bitmap;
bitmap2 = Bitmap (e.target.loader.content);
addFrog();
this.dispatchEvent (new Event ("Ready"));
}

public function addFrog (): void {}
this.addChild (bitmap2);

var frog: Bitmap = GetImage ();
Frog.x = 200;
this.addChild (frog);
}

public function getBitmapData (): BitmapData {}
Return bitmap2.bitmapData.clone ();
}

public function getLoader (): {charger
Return imgLoader;
}

public void GetImage (): Bitmap
{
var copy: Bitmap = new Bitmap (bitmap2.bitmapData.clone ());
return the copy;
}

} //end of class
}

Post edited by: waterlovinguy

Tags: Adobe Animate

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