The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2010/06/25/adding-a-hover-glow-filter-to-an-mx-image-control-in-flex-4/ -->
<s:Application name="MX_Image_filters_GlowFilter_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx"
        xmlns:comps="comps.*">
    <s:layout>
        <s:HorizontalLayout horizontalAlign="center" verticalAlign="middle" />
    </s:layout>
 
    <fx:Script>
        <![CDATA[
            import flash.filters.GlowFilter;
 
            protected function img_rollOverHandler(evt:MouseEvent):void {
                Image(evt.currentTarget).filters = [new GlowFilter(0xFF0000)];
            }
 
            protected function img1_rollOutHandler(evt:MouseEvent):void {
                Image(evt.currentTarget).filters = [];
            }
        ]]>
    </fx:Script>
 
    <mx:Image id="img1"
            source="http://helpexamples.com/flash/images/image1.jpg"
            rollOver="img_rollOverHandler(event);"
            rollOut="img1_rollOutHandler(event);" />
 
</s:Application>

View source is enabled in the following example.

Or, instead of specifying the rollOver and rollOut event handlers for each Image component instance, you could create a custom component that extends the MX Image control and adds the rollOver/rollOut logic, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2010/06/25/adding-a-hover-glow-filter-to-an-mx-image-control-in-flex-4/ -->
<s:Application name="MX_Image_filters_GlowFilter_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx"
        xmlns:comps="comps.*">
    <s:layout>
        <s:HorizontalLayout horizontalAlign="center" verticalAlign="middle" />
    </s:layout>
 
    <comps:GlowImage id="img2"
            source="http://helpexamples.com/flash/images/image2.jpg"
            scaleX="0.5" scaleY="0.5" />
 
    <comps:GlowImage id="img3"
            source="http://helpexamples.com/flash/images/image3.jpg"
            scaleX="0.5" scaleY="0.5" />
 
</s:Application>

And the custom MX Image control, comps/GlowImage.mxml, is as follows:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2010/06/25/adding-a-hover-glow-filter-to-an-mx-image-control-in-flex-4/ -->
<mx:Image name="GlowImage"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx"
        rollOver="rollOverHandler(event);"
        rollOut="rollOutHandler(event);">
 
    <fx:Script>
        <![CDATA[
            import flash.filters.GlowFilter;
 
            protected function rollOverHandler(evt:MouseEvent):void {
                filters = [new GlowFilter(0xFF0000)];
            }
 
            protected function rollOutHandler(evt:MouseEvent):void {
                filters = [];
            }
        ]]>
    </fx:Script>
 
</mx:Image>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see http://www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.
For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/09/21/fading-two-images-using-the-crossfade-effect-in-flex-4/ -->
<s:Application name="Spark_CrossFade_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
    <s:controlBarContent>
        <mx:Button id="btn"
                label="Play CrossFade effect"
                click="button1_click(event);" />
    </s:controlBarContent>
 
    <fx:Script>
        <![CDATA[
            [Embed("assets/fl_player_appicon.jpg")]
            private const FlashPlayerIcon:Class;
 
            [Embed("assets/fx_appicon.jpg")]
            private const FlexPlayerIcon:Class;
 
            protected function button1_click(evt:MouseEvent):void {
                xFade.stop();
                xFade.bitmapFrom = new FlexPlayerIcon().bitmapData;
                xFade.bitmapTo = new FlashPlayerIcon().bitmapData;
                xFade.play();
            }
        ]]>
    </fx:Script>
 
    <fx:Declarations>
        <s:CrossFade id="xFade" target="{logo}" duration="3000" />
    </fx:Declarations>
 
    <s:VGroup horizontalCenter="0" verticalCenter="0">
        <mx:Image id="logo" source="{FlexPlayerIcon}" />
    </s:VGroup>
 
</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

 

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/11/09/opening-a-new-browser-window-by-double-clicking-an-image-control-in-flex/ -->
<mx:Application name="Image_doubleClick_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import flash.net.navigateToURL;

            private function img_doubleClick(evt:MouseEvent):void {
                var src:String = evt.currentTarget.source;
                var urlReq:URLRequest = new URLRequest(src);
                navigateToURL(urlReq, "_blank");
            }
        ]]>
    </mx:Script>

    <mx:Image id="img1"
            source="http://www.helpexamples.com/flash/images/image1.jpg"
            doubleClickEnabled="true"
            doubleClick="img_doubleClick(event);" />

    <mx:Image id="img2"
            source="http://www.helpexamples.com/flash/images/image2.jpg"
            doubleClickEnabled="true"
            doubleClick="img_doubleClick(event);" />

</mx:Application>

 

Full code after the jump.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/09/09/rounding-the-corners-of-an-image-control-in-flex-using-a-mask/ -->
<mx:Application name="Image_mask_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        initialize="init();">
 
    <mx:Script>
        <![CDATA[
            import mx.events.ResizeEvent;
 
            private var roundedMask:Sprite;
 
            private function init():void {
                roundedMask = new Sprite();
                canvas.rawChildren.addChild(roundedMask);
            }
 
            private function image_resize(evt:ResizeEvent):void {
                var w:Number = evt.currentTarget.width;
                var h:Number = evt.currentTarget.height;
                var cornerRadius:uint = 60;
                roundedMask.graphics.clear();
                roundedMask.graphics.beginFill(0xFF0000);
                roundedMask.graphics.drawRoundRect(0, 0,
                            w, h,
                            cornerRadius, cornerRadius);
                roundedMask.graphics.endFill();
                image.mask = roundedMask;
            }
        ]]>
    </mx:Script>
 
    <mx:Canvas id="canvas">
        <mx:Image id="image"
                source="http://www.helpexamples.com/flash/images/image1.jpg"
                resize="image_resize(event);">
        </mx:Image>
    </mx:Canvas>
 
</mx:Application>

View source is enabled in the following example.

If you wanted to round specific corners on an Image control, see “Rounding individual corners of an Image control in Flex using a mask”.

 

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/29/setting-a-complete-effect-on-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            private function button_click(evt:MouseEvent):void {
                image.load("assets/Fx.png");
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:Button id="button"
                label="Load Image"
                click="button_click(event);" />
    </mx:ApplicationControlBar>

    <mx:Image id="image"
            completeEffect="Fade"
            maintainAspectRatio="true"
            width="100%"
            height="100%" />

</mx:Application>

View source is enabled in the following example.

You can also set the completeEffect effect using an external .CSS file or <mx:Style /&gt block, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/29/setting-a-complete-effect-on-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            private function button_click(evt:MouseEvent):void {
                image.load("assets/Fx.png");
            }
        ]]>
    </mx:Script>

    <mx:Style>
        Image {
            completeEffect: Fade;
        }
    </mx:Style>

    <mx:ApplicationControlBar dock="true">
        <mx:Button id="button"
                label="Load Image"
                click="button_click(event);" />
    </mx:ApplicationControlBar>

    <mx:Image id="image"
            maintainAspectRatio="true"
            width="100%"
            height="100%" />

</mx:Application>

Or, you can set the completeEffect effect using ActionScript, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/29/setting-a-complete-effect-on-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.effects.*;

            private function init():void {
                image.setStyle("completeEffect", Fade);
            }

            private function button_click(evt:MouseEvent):void {
                image.load("assets/Fx.png");
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:Button id="button"
                label="Load Image"
                click="button_click(event);" />
    </mx:ApplicationControlBar>

    <mx:Image id="image"
            maintainAspectRatio="true"
            width="100%"
            height="100%"
            initialize="init();" />

</mx:Application>

Due to popular demand, here is the “same” example in a more ActionScript friendly format:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/29/setting-a-complete-effect-on-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        initialize="init();">

    <mx:Script>
        <![CDATA[
            import mx.containers.ApplicationControlBar;
            import mx.controls.Button;
            import mx.controls.Image;
            import mx.effects.*;

            private var button:Button;
            private var image:Image;

            private function init():void {
                button = new Button();
                button.label = "Load Image";
                button.addEventListener(MouseEvent.CLICK, button_click);

                var appControlBar:ApplicationControlBar;
                appControlBar = new ApplicationControlBar();
                appControlBar.dock = true;
                appControlBar.addChild(button);
                Application.application.addChildAt(appControlBar, 0);

                image = new Image();
                image.maintainAspectRatio = true;
                image.percentWidth = 100;
                image.percentHeight = 100;
                image.setStyle("completeEffect", Fade);
                addChild(image);
            }

            private function button_click(evt:MouseEvent):void {
                image.load("assets/Fx.png");
            }
        ]]>
    </mx:Script>

</mx:Application>

 

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/29/preventing-an-image-from-automatically-loading-in-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:ApplicationControlBar dock="true">
        <mx:Button id="btn"
                label="Load Image"
                click="img.load();" />
    </mx:ApplicationControlBar>

    <mx:Image id="img"
            autoLoad="false"
            source="assets/Fx.png"
            maintainAspectRatio="true"
            percentWidth="100"
            percentHeight="100" />

</mx:Application>

View source is enabled in the following example.

Due to popular demand, here is the “same” example in a more ActionScript friendly format:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/29/preventing-an-image-from-automatically-loading-in-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        initialize="init();">

    <mx:Script>
        <![CDATA[
            import mx.containers.ApplicationControlBar;
            import mx.controls.Button;
            import mx.controls.Image;

            private var btn:Button;
            private var img:Image;

            private function init():void {
                btn = new Button();
                btn.label = "Load Image";
                btn.addEventListener(MouseEvent.CLICK, btn_click);

                var appControlBar:ApplicationControlBar = new ApplicationControlBar();
                appControlBar.dock = true;
                appControlBar.addChild(btn);
                Application.application.addChildAt(appControlBar, 0);

                img = new Image();
                img.autoLoad = false;
                img.source = "assets/Fx.png";
                img.maintainAspectRatio = true;
                img.percentWidth = 100;
                img.percentHeight = 100;
                addChild(img);
            }

            private function btn_click(evt:MouseEvent):void {
                img.load();
            }
        ]]>
    </mx:Script>

</mx:Application>

 

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/28/maintaining-an-images-aspect-ratio-on-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            private function reset():void {
                img.invalidateDisplayList();
                validateNow();
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="maintainAspectRatio:">
                <mx:CheckBox id="checkBox"
                        selected="false"
                        change="callLater(reset);" />
            </mx:FormItem>
            <mx:FormItem label="percentWidth:"
                    direction="horizontal">
                <mx:HSlider id="pWidth"
                        minimum="10"
                        maximum="100"
                        value="100"
                        snapInterval="1"
                        tickInterval="10"
                        liveDragging="true" />
                <mx:Label text="{img.width} px" />
            </mx:FormItem>
            <mx:FormItem label="percentHeight:"
                    direction="horizontal">
                <mx:HSlider id="pHeight"
                        minimum="10"
                        maximum="100"
                        value="100"
                        snapInterval="1"
                        tickInterval="10"
                        liveDragging="true" />
                <mx:Label text="{img.height} px" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:Image id="img"
            source="assets/Fx.png"
            maintainAspectRatio="{checkBox.selected}"
            percentWidth="{pWidth.value}"
            percentHeight="{pHeight.value}" />

</mx:Application>

View source is enabled in the following example.

Due to popular demand, here is the “same” example in a more ActionScript friendly format:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/28/maintaining-an-images-aspect-ratio-on-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        creationComplete="init();">

    <mx:Script>
        <![CDATA[
            import mx.containers.ApplicationControlBar;
            import mx.containers.Form;
            import mx.containers.FormItem;
            import mx.containers.FormItemDirection;
            import mx.controls.CheckBox;
            import mx.controls.HSlider;
            import mx.controls.Image;
            import mx.controls.Label;
            import mx.events.SliderEvent

            private var checkBox:CheckBox;
            private var pWidth:HSlider;
            private var pHeight:HSlider;
            private var pWidthLbl:Label;
            private var pHeightLbl:Label;
            private var img:Image;

            private function init():void {
                checkBox = new CheckBox();
                checkBox.selected = false;
                checkBox.addEventListener(Event.CHANGE, reset);

                pWidth = new HSlider();
                pWidth.minimum = 10;
                pWidth.maximum = 100;
                pWidth.value = 100;
                pWidth.snapInterval = 1;
                pWidth.tickInterval = 10;
                pWidth.liveDragging = true;
                pWidth.addEventListener(SliderEvent.CHANGE, pWidth_change);

                pHeight = new HSlider();
                pHeight.minimum = 10;
                pHeight.maximum = 100;
                pHeight.value = 100;
                pHeight.snapInterval = 1;
                pHeight.tickInterval = 10;
                pHeight.liveDragging = true;
                pHeight.addEventListener(SliderEvent.CHANGE, pHeight_change);

                pWidthLbl = new Label();
                pHeightLbl = new Label();

                var formItem1:FormItem = new FormItem();
                formItem1.label = "maintainAspectRatio:";
                formItem1.addChild(checkBox);

                var formItem2:FormItem = new FormItem();
                formItem2.label = "percentWidth:";
                formItem2.direction = FormItemDirection.HORIZONTAL;
                formItem2.addChild(pWidth);
                formItem2.addChild(pWidthLbl);

                var formItem3:FormItem = new FormItem();
                formItem3.label = "percentHeight:";
                formItem3.direction = FormItemDirection.HORIZONTAL;
                formItem3.addChild(pHeight);
                formItem3.addChild(pHeightLbl);

                var form:Form = new Form();
                form.styleName = "plain";
                form.addChild(formItem1);
                form.addChild(formItem2);
                form.addChild(formItem3);

                var appControlBar:ApplicationControlBar = new ApplicationControlBar();
                appControlBar.dock = true;
                appControlBar.addChild(form);
                Application.application.addChildAt(appControlBar, 0);

                img = new Image();
                img.source = "assets/Fx.png";
                img.maintainAspectRatio = checkBox.selected;
                img.percentHeight = pHeight.value;
                img.percentWidth = pWidth.value;
                addChild(img);

                callLater(doInit);
            }

            private function doInit():void {
                pWidth_change(new SliderEvent(SliderEvent.CHANGE));
                pHeight_change(new SliderEvent(SliderEvent.CHANGE));
            }

            private function pWidth_change(evt:SliderEvent):void {
                img.percentWidth = pWidth.value;
                pWidthLbl.text = img.width.toString() + " px";
            }

            private function pHeight_change(evt:SliderEvent):void {
                img.percentHeight = pHeight.value;
                pHeightLbl.text = img.height.toString() + " px";
            }

            private function reset(evt:Event):void {
                img.maintainAspectRatio = evt.target.selected;
                callLater(doReset);
            }

            private function doReset():void {
                img.invalidateDisplayList();
                validateNow();
            }
        ]]>
    </mx:Script>

</mx:Application>

 

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/27/detecting-when-the-source-changes-on-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;

            private function init():void {
                img.addEventListener("sourceChanged", image_sourceChanged);
            }

            private function image_sourceChanged(evt:Event):void {
                Alert.show(evt.toString(), evt.type);
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:Button label="Flash"
                click="img.source = 'assets/fl_appicon.jpg';" />
        <mx:Button label="Flash Player"
                click="img.source = 'assets/fl_player_appicon.jpg';" />
        <mx:Button label="Flex"
                click="img.source = 'assets/fx_appicon.jpg';" />
    </mx:ApplicationControlBar>

    <mx:Image id="img"
            source="assets/fx_appicon.jpg"
            initialize="init();"
            width="100"
            height="100" />

</mx:Application>

View source is enabled in the following example.

Due to popular demand, here is the “same” example in a more ActionScript friendly format:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/27/detecting-when-the-source-changes-on-an-image-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        initialize="init();">

    <mx:Script>
        <![CDATA[
            import mx.containers.ApplicationControlBar;
            import mx.controls.Alert;
            import mx.controls.Button;
            import mx.controls.Image;

            private var button1:Button;
            private var button2:Button;
            private var button3:Button;
            private var img:Image;

            private function init():void {
                button1 = new Button();
                button1.label = "Flash";
                button1.addEventListener(MouseEvent.CLICK, function():void {
                    img.source = "assets/fl_appicon.jpg";
                });

                button2 = new Button();
                button2.label = "Flash Player";
                button2.addEventListener(MouseEvent.CLICK, function():void {
                    img.source = "assets/fl_player_appicon.jpg";
                });

                button3 = new Button();
                button3.label = "Flex";
                button3.addEventListener(MouseEvent.CLICK, function():void {
                    img.source = "assets/fx_appicon.jpg";
                });

                var appControlBar:ApplicationControlBar = new ApplicationControlBar();
                appControlBar.dock = true;
                appControlBar.addChild(button1);
                appControlBar.addChild(button2);
                appControlBar.addChild(button3);
                Application.application.addChildAt(appControlBar, 0);

                img = new Image();
                img.source = "assets/fx_appicon.jpg";
                img.width = 100;
                img.height = 100;
                img.addEventListener("sourceChanged", image_sourceChanged);
                addChild(img);
            }

            private function image_sourceChanged(evt:Event):void {
                Alert.show(evt.toString(), evt.type);
            }
        ]]>
    </mx:Script>

</mx:Application>