Flex学习笔记

5.集合过滤
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" applicationComplete="appComplete()">
	<mx:ArrayCollection id="myColl">
		<mx:source>
			<mx:String>fLASH</mx:String>
			<mx:String>fLASH 111</mx:String>
			<mx:String>fLASH 222</mx:String>
		</mx:source>
	</mx:ArrayCollection>
	<mx:TitleWindow x="283" y="54" width="326" height="332" layout="absolute" title="过滤">
		<mx:List dataProvider="{myColl}" x="59" y="39" height="179" width="175"></mx:List>
		<mx:Button x="111" y="248" label="开始过滤" click="test(event)" />
		
	</mx:TitleWindow>
	
	<mx:Script>
		<![CDATA[
			import mx.controls.Alert;
			var i:int = 0;
			private function test(e:MouseEvent):void {
				myColl.refresh();
			}
			private function appComplete():void {
				myColl.filterFunction = filter222; //循环
			}
			private function filter222(item:String):Boolean {
				Alert.show(i + "");
				i++;
				return (item.search("fLASH 222") == -1);
			}
		]]>
	</mx:Script>
</mx:Application>


4.集合
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" applicationComplete="appComplete()">
	<mx:Script>
		<![CDATA[
			import mx.collections.ArrayCollection;
			import mx.controls.Alert;
			function appComplete():void {
				//创建一个集合
				var d:ArrayCollection = new ArrayCollection();
				//add 
				d.addItemAt("qaz",0);
				d.addItem("1");
				d.addItem("2");
				d.addItem("3");
				Alert.show("test:" + d.getItemAt(0));
				//迭代
				for each (var item:String in d) {
					Alert.show(item);
				}
			}
		]]>
	</mx:Script>
</mx:Application>


3.Bindable
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
	<mx:Script>
		<![CDATA[
			//运用绑定 可以将控件上面的值进行动态的改变 没有绑定则不能动态的改变
			[Bindable]
			public var max:Number = 15;
			
			[Bindable]
			public var min:Number = 5;
		]]>
	</mx:Script>
	<mx:Label text="{max }"  x="155" y="118"/>
	<mx:Label text="{min }"  x="368" y="118"/>
	<mx:Button click="max=20;min=10" />
</mx:Application>


2.鼠标双击
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
	<mx:Button x="251" y="219" label="鼠标双击定义事件" height="47" id="my_button" click="clickDouble(event)"/>
	
	<mx:Script>
		<![CDATA[
			import mx.controls.Alert;
			private var delay:uint = 300;//定义鼠标延迟时间
			private var firstClick:uint;
			private var lastClick:uint;
			function clickDouble(e:MouseEvent):void {
				//鼠标双击就触发该事件
				if(firstClick == 0) {
					firstClick = getTimer();
				} else {
					lastClick = getTimer();
					if((lastClick - firstClick) < delay) {
						//......
						Alert.show(firstClick + "双击");
					}
				}
				firstClick = getTimer();
			}
		]]>
	</mx:Script>
</mx:Application>

1.事件

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" applicationComplete="appComplete()">
	<mx:Button x="311" y="55" label="点击我哦" width="108" height="38" id="my_button"/>
	<mx:Script>
		<![CDATA[
			import mx.controls.Alert;
			//事件触发
			//1.
			var myClick:Function = function(e:MouseEvent) {
				//鼠标点击事件
				Alert.show("你点击了我！");
			}
			//2.监听事件
			function appComplete():void {
				//Alert.show("ss");绑定点击事件
				my_button.addEventListener("click",myClick);
			}
		]]>
	</mx:Script>
</mx:Application>