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/2010/05/14/detecting-an-item-click-event-on-a-spark-list-control-in-flex-4/ -->
<s:Application name="Spark_List_itemClick_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">
    <s:layout>
        <s:HorizontalLayout horizontalAlign="center" verticalAlign="middle" />
    </s:layout>
 
    <fx:Script>
        <![CDATA[
            import mx.events.ItemClickEvent;
            import spark.events.IndexChangeEvent;
 
            protected function init():void {
                lst.addEventListener(ItemClickEvent.ITEM_CLICK, lst_itemClickHandler);
            }
 
            protected function lst_itemClickHandler(evt:ItemClickEvent):void {
                addAndAutoScroll(evt);
            }
 
            protected function lst_changeHandler(evt:IndexChangeEvent):void {
                addAndAutoScroll(evt);
            }
 
            protected function addAndAutoScroll(obj:Event):void {
                arrList.addItem({time:now(), type:obj.type, item:obj.currentTarget.selectedItem});
                grid.validateNow();
                grid.verticalScrollPosition = grid.maxVerticalScrollPosition;
            }
 
            protected function now():String {
                return new Date().toTimeString();
            }
        ]]>
    </fx:Script>
 
    <s:List id="lst"
            itemRenderer="skins.CustomItemClickItemRenderer"
            horizontalCenter="0" verticalCenter="0"
            initialize="init();"
            change="lst_changeHandler(event)">
        <s:layout>
            <s:VerticalLayout gap="0"
                    horizontalAlign="contentJustify"
                    requestedRowCount="8" />
        </s:layout>
        <s:dataProvider>
            <s:ArrayList source="[One,Two,Three,Four,Five,Six,Seven,Eight,Nine]" />
        </s:dataProvider>
    </s:List>
 
    <mx:DataGrid id="grid" verticalScrollPolicy="on">
        <mx:columns>
            <mx:DataGridColumn dataField="time" width="150" />
            <mx:DataGridColumn dataField="type" />
            <mx:DataGridColumn dataField="item" />
        </mx:columns>
        <mx:dataProvider>
            <mx:ArrayList id="arrList" />
        </mx:dataProvider>
    </mx:DataGrid>
 
</s:Application>

And the custom Spark item renderer, skins/CustomItemClickItemRenderer.mxml, is as follows:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2010/05/14/detecting-an-item-click-event-on-a-spark-list-control-in-flex-4/ -->
<s:ItemRenderer name="CustomItemClickItemRenderer"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        autoDrawBackground="true"
        click="itemrenderer1_clickHandler(event);">
 
    <fx:Script>
        <![CDATA[
            import mx.events.ItemClickEvent;
 
            protected function itemrenderer1_clickHandler(evt:MouseEvent):void {
                var e:ItemClickEvent = new ItemClickEvent(ItemClickEvent.ITEM_CLICK, true);
                e.item = data;
                e.index = itemIndex;
                dispatchEvent(e);
            }
        ]]>
    </fx:Script>
 
    <s:Label id="labelDisplay"
            left="3" right="3" top="5" bottom="5" />
 
</s:ItemRenderer>

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/2009/01/30/creating-an-auto-repeating-fxbutton-control-in-flex-gumbo/ -->
<s:Application name="Spark_Button_autoRepeat_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">

    <fx:Script>
        <![CDATA[
            import mx.events.FlexEvent;

            private var clr:Boolean = false;

            private function btn_buttonDown(evt:FlexEvent):void {
                if (clr) {
                    arrList.removeAll();
                    clr = false;
                }
                doAddItem(evt);
            }

            private function btn_click(evt:MouseEvent):void {
                clr = true;
                doAddItem(evt);
            }

            private function doAddItem(evt:Event):void {
                var obj:Object = {};
                obj.type = evt.type;
                obj.currentTarget = evt.currentTarget.name;
                obj.time = new Date().toTimeString();

                arrList.addItem(obj);
                callLater(doScroll);
            }

            private function doScroll():void {
                dataGrid.scrollToIndex(arrList.length);
            }
        ]]>
    </fx:Script>

    <fx:Declarations>
        <s:ArrayList id="arrList" />
    </fx:Declarations>

    <mx:ApplicationControlBar width="100%" cornerRadius="0">
        <mx:Form styleName="plain">
            <mx:FormItem label="autoRepeat:">
                <s:CheckBox id="checkBox"
                        selected="true" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <s:VGroup width="320" horizontalCenter="0" verticalCenter="0">
        <s:Button id="btn"
                label="Spark Button"
                autoRepeat="{checkBox.selected}"
                click="btn_click(event);"
                buttonDown="btn_buttonDown(event);" />

        <mx:DataGrid id="dataGrid"
                dataProvider="{arrList}"
                verticalScrollPolicy="on"
                width="100%"
                rowCount="8" />
    </s:VGroup>

</s:Application>

View source is enabled in the following example.

You can also add the buttonDown and click event listeners using ActionScript, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/01/30/creating-an-auto-repeating-fxbutton-control-in-flex-gumbo/ -->
<s:Application name="Spark_Button_autoRepeat_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"
        initialize="init();">

    <fx:Script>
        <![CDATA[
            import mx.events.FlexEvent;
            import spark.components.Button;

            private var btn:Button;

            private function init():void {
                btn = new Button();
                btn.label = "Spark Button";
                btn.autoRepeat = true;
                btn.horizontalCenter = 0;
                btn.verticalCenter = 0;
                btn.addEventListener(FlexEvent.BUTTON_DOWN, btn_buttonDown);
                btn.addEventListener(MouseEvent.CLICK, btn_click);
                addElement(btn);
            }

            private function btn_buttonDown(evt:FlexEvent):void {
                trace(evt.type);
            }

            private function btn_click(evt:MouseEvent):void {
                trace(evt.type);
            }
        ]]>
    </fx:Script>

</s:Application>

This entry is based on a beta version of the Flex Gumbo 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 Gumbo SDK.

 

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/02/04/detecting-when-the-main-button-on-the-flex-popupbutton-control-has-been-clicked/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="top"
        backgroundColor="white">

    <mx:Style>
        PopUpButton {
            pop-up-style-name: myCustomPopUpStyleName;
        }

        .myCustomPopUpStyleName {
            fontWeight: normal;
            textAlign: left;
        }
    </mx:Style>

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

            [Bindable]
            private var menu:Menu;

            private function popUpButton_initialize():void {
                menu = new Menu();
                menu.dataProvider = arr;
            }

            private function popUpButton_click():void {
                Alert.show("You clicked me, now what?");
            }
        ]]>
    </mx:Script>

    <mx:Array id="arr">
        <mx:Object label="Alert" />
        <mx:Object label="Button" />
        <mx:Object label="ButtonBar" />
        <mx:Object label="CheckBox" />
        <mx:Object label="ColorPicker" />
        <mx:Object label="ComboBox" />
    </mx:Array>

    <mx:PopUpButton id="popUpButton"
            label="Please select an item"
            popUp="{menu}"
            initialize="popUpButton_initialize();"
            click="popUpButton_click();" />

</mx:Application>

View source is enabled in the following example.

 

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2007/12/11/creating-a-double-click-able-button-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 {
                appendText(evt.type);
            }

            private function button_doubleClick(evt:MouseEvent):void {
                appendText(evt.type);
            }

            private function appendText(str:String):void {
                var now:Date = new Date();
                textArea.text += "[" + now.toTimeString() + "] " + str + "\\n";
                textArea.validateNow();
                textArea.verticalScrollPosition = textArea.maxVerticalScrollPosition;
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="doubleClickEnabled:">
                <mx:CheckBox id="checkBox"
                        selected="true" />
            </mx:FormItem>
            <mx:FormItem>
                <mx:Button id="button"
                        label="[double] click me"
                        doubleClickEnabled="{checkBox.selected}"
                        click="button_click(event);"
                        doubleClick="button_doubleClick(event);" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:TextArea id="textArea"
            editable="false"
            width="50%"
            height="100%" />

</mx:Application>

View source is enabled in the following example.

You can also build the same sample as above using ActionScript, using the following code:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2007/12/11/creating-a-double-click-able-button-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.controls.Button;
            import mx.controls.CheckBox;
            import mx.controls.TextArea;

            private var textArea:TextArea;

            private function init():void {
                // CheckBox
                var ch:CheckBox = new CheckBox();
                ch.selected = true;

                // FormItem #1 (for CheckBox)
                var fi1:FormItem = new FormItem();
                fi1.label = "doubleClickEnabled:";
                fi1.addChild(ch);

                // Button
                var btn:Button = new Button();
                btn.label = "[double] click me";
                btn.doubleClickEnabled = true;
                btn.addEventListener(MouseEvent.CLICK, button_click);
                btn.addEventListener(MouseEvent.DOUBLE_CLICK, button_doubleClick);

                // FormItem #2 (for Button)
                var fi2:FormItem = new FormItem();
                fi2.addChild(btn);

                // Form
                var f:Form = new Form();
                f.styleName = "plain";
                f.addChild(fi1);
                f.addChild(fi2);

                // ApplicationControlBar
                var appBar:ApplicationControlBar = new ApplicationControlBar();
                appBar.dock = true;
                appBar.addChild(f);
                addChild(appBar);

                // TextArea
                textArea = new TextArea();
                textArea.percentWidth = 50;
                textArea.percentHeight = 100;
                textArea.editable = false;
                addChild(textArea);
            }

            private function button_click(evt:MouseEvent):void {
                appendText(evt.type);
            }

            private function button_doubleClick(evt:MouseEvent):void {
                appendText(evt.type);
            }

            private function appendText(str:String):void {
                var now:Date = new Date();
                textArea.text += "[" + now.toTimeString() + "] " + str + "\\n";
                textArea.validateNow();
                textArea.verticalScrollPosition = textArea.maxVerticalScrollPosition;
            }
        ]]>
    </mx:Script>

</mx:Application>