<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns="*" layout="vertical" creationComplete="initApp()">
<mx:states>
<!--新建“index”State-->
<mx:State name="index">
<!--移除“登录框”-->
<mx:RemoveChild target="{panel1}"/>
<!--添加新的组件-->
<mx:AddChild position="lastChild">
<mx:Label x="231" y="174" text="欢迎来到主页" fontFamily="Georgia" fontSize="20" />
</mx:AddChild>
</mx:State>
</mx:states>
<mx:Script>
<![CDATA[
import mx.controls.Alert;
private function initApp():void{
lblCheckCode.text=GenerateCheckCode();
}
private function loginHandle():void{
if(txtUsername.text=="" || txtPassword.text==""){
Alert.show("用户名或者密码输入不完整!");
}
if(txtUsername.text=="licui"&& txtPassword.text=="123" && txtCheckCode.text.toLocaleLowerCase()==lblCheckCode.text.toLocaleLowerCase()){
currentState="index";
}else{
if(txtCheckCode.text.toLocaleLowerCase()!=lblCheckCode.text.toLocaleLowerCase()){
Alert.show("验证码不正确:");
lblCheckCode.text=GenerateCheckCode();
}else{
Alert.show("用户名或者密码输入不正确!");
}
}
}
private function resetHandle():void{
txtUsername.text="";
txtPassword.text="";
txtCheckCode.text="";
}
private function GenerateCheckCode():String{
var ran:Number;
var number:Number;
var code:String;
var checkcode:String="";
//生成四为随机数
for(var i:int=0;i<4;i++){
ran=Math.random();
number=Math.round(ran*1000);
if(number%2==0)
code=String.fromCharCode(48+(number%10));
else
code=String.fromCharCode(65+(number%26));
checkcode+=code;
}
return checkcode;
}
]]>
</mx:Script>
<mx:Panel x="108" y="71" width="349" height="257" layout="absolute" title="用户登录" fontFamily="Georgia" fontSize="12" id="panel1">
<!-- "用户名"标签 -->
<mx:Label x="41.5" y="33" text="用户名"/>
<!-- "密码"标签 -->
<mx:Label x="42.5" y="81" text="密码"/>
<!-- "用户名"输入框 -->
<mx:TextInput x="94.5" y="33" id="txtUsername"/>
<!-- "密码"输入框 -->
<mx:TextInput x="95.5" y="81" id="txtPassword" displayAsPassword="true"/>
<!-- "登录"按钮 -->
<mx:Button x="82.5" y="159" label="登录" id="btnLogin" click="loginHandle()"/>
<!-- "重置"按钮 -->
<mx:Button x="181.5" y="159" label="重置" id="btnReset" click="resetHandle()"/>
<!-- "校验码"标签 -->
<mx:Label x="165.5" y="125" id="lblCheckCode" width="42.5" color="#377CD0"/>
<mx:LinkButton x="216" y="123" label="看不清楚?" id="linkbtnReGenerate" click="lblCheckCode.text=GenerateCheckCode();" fontFamily="Georgia" fontSize="11"/>
<mx:Label x="39.5" y="123" text="校验码"/>
<!-- "校验码"输入框 -->
<mx:TextInput x="96.5" y="121" id="txtCheckCode" width="61" maxChars="4"/>
</mx:Panel>
</mx:Application>
flex登录界面实例2
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