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积少成多Flash(12) - Flex 3.0 验证控件(Validator), 缓动效果(easing)


作者：webabcd


介绍
演示 Flex 3.0 中的验证控件的应用，以及各种缓动效果(easing)的应用
  • Validator - 各种验证控件的基类，其可用于必填验证
  • DateValidator - 日期验证控件
  • EmailValidator - Email 验证控件
  • RegExpValidator - 正则表达式验证控件
  • 缓动（easing） - 系统自带的动画缓动效果，以及自定义缓动效果
  • 加密/解密 - 常用加密算法的 AS3 库的应用
  • 其他 - 其他一些常用的东西
<?xml version="1.0" encoding="utf-8"?>

<!--
        各种验证控件的基类 Validator 的 Demo，其可用于必填验证
-->

<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="400" height="300"
        title="Validator - Validator (其他验证器的基类，可用于必填验证)">
        
        <mx:Validator id="validator"    
                source="{txtInput}" property="text"    
                required="true" requiredFieldError="请输入必填字段"
                trigger="{btnSubmit}" triggerEvent="click"
        />
                
        <mx:Form>
                <mx:FormItem label="必填字段: ">
                        <mx:TextInput id="txtInput"/>
                </mx:FormItem>
                <mx:FormItem >
                        <mx:Button id="btnSubmit" label="验证" />
                </mx:FormItem>
        </mx:Form>
        
</mx:Panel>
 
 
2、DateValidator.mxml
<?xml version="1.0" encoding="utf-8"?>

<!--
        应用日期验证控件的 Demo
-->

<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="400" height="300"
        title="Validator - DateValidator (日期验证)">

        <mx:DateValidator source="{txtDate}" property="text"
                required="true" requiredFieldError="请输入日期"    
                allowedFormatChars="-" inputFormat="YYYY-MM-DD"    
                trigger="{btnSubmit}" triggerEvent="click"    
                valid="mx.controls.Alert.show('验证成功');"
                invalid="mx.controls.Alert.show('验证失败');"    
                wrongDayError="日输入错误"
                wrongMonthError="月输入错误"
                wrongYearError="年输入错误"
                wrongLengthError="日期长度错误"
                invalidCharError="日期分隔符错误"
                formatError="inputFormat 配置错误"
        />
                
         <mx:Form>
                <mx:FormItem label="日期(格式 yyyy-MM-dd): ">
                        <mx:TextInput id="txtDate"/>
                </mx:FormItem>
                <mx:FormItem >
                        <mx:Button id="btnSubmit" label="验证" />
                </mx:FormItem>
        </mx:Form>
        
</mx:Panel>
 
 
3、EmailValidator.mxml
<?xml version="1.0" encoding="utf-8"?>

<!--
        应用 Email 验证控件的 Demo

-->
<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="400" height="300"
        title="Validator - EmailValidator (Email验证)">
        
        <mx:EmailValidator id="emailValidator" source="{txtEmail}" property="text"
                missingAtSignError="缺少@"    
                     valid="mx.controls.Alert.show('验证成功');"
        />
                
        <mx:Form>
                <mx:FormItem label="Email: ">
                        <mx:TextInput id="txtEmail"/>
                </mx:FormItem>
                <mx:FormItem >
                        <mx:Button id="btnSubmit" label="验证" click="emailValidator.validate();" />
                </mx:FormItem>
        </mx:Form>
        
</mx:Panel>
 
 
4、RegExpValidator.mxml
<?xml version="1.0" encoding="utf-8"?>

<!--
        应用正则表达式验证控件的 Demo
-->

<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="400" height="300"
        title="Validator - RegExpValidator (正则表达式验证)">
        
        <mx:Script>
                <![CDATA[
                
                        import mx.events.ValidationResultEvent;
                        import mx.validators.*;
                        import mx.controls.Alert;
                        
                        private function handleResult(e:ValidationResultEvent):void
                        {
                                if (e.type == ValidationResultEvent.VALID)
                                {
                                        Alert.show("验证成功");
                                }
                        }
                        
                ]]>
        </mx:Script>
        
        <mx:RegExpValidator id="regExpValidator"    
                source="{txtInput}" property="text"    
                flags="g,i" expression="^[a-z]+$"    
                valid="handleResult(event)" invalid="handleResult(event)"
                trigger="{btnSubmit}" triggerEvent="click"
                noMatchError="请输入正确的英文字母"
                required="false"
        />
                
        <mx:Form>
                <mx:FormItem label="请输入英文字母: ">
                        <mx:TextInput id="txtInput"/>
                </mx:FormItem>
                <mx:FormItem >
                        <mx:Button id="btnSubmit" label="验证" />
                </mx:FormItem>
        </mx:Form>
        
</mx:Panel>
 
 
5、Easing.mxml
<?xml version="1.0" encoding="utf-8"?>

<!--
        演示各种缓动（easing）的 Demo
        和 Silverlight 中的缓动一致 http://www.cnblogs.com/webabcd/archive/2009/08/20/1550334.html
-->

<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="400" height="300"
        title="easing 的应用(TweenEffect 的 easingFunction 属性)">
        
        <mx:Script>
                <![CDATA[
                
                        import mx.events.TweenEvent;
                        
                        import mx.effects.easing.Back;
                        import mx.effects.easing.Bounce;
                        import mx.effects.easing.Circular;
                        import mx.effects.easing.Cubic;
                        import mx.effects.easing.Elastic;
                        import mx.effects.easing.Exponential;
                        import mx.effects.easing.Linear;
                        import mx.effects.easing.Quadratic;
                        import mx.effects.easing.Quartic;
                        import mx.effects.easing.Quintic;
                        import mx.effects.easing.Sine;
                        
                        private function moveImage(e:MouseEvent):void
                        {
                                effectMove.end();        
                                effectMove.xTo = 240;
                                effectMove.yTo = 120;
                                effectMove.play();
                        }
                        
                        private function radioChangeHandler():void
                        {
                                switch (radioGroup.selectedValue)
                                {
                                        case "Back" :
                                                effectMove.easingFunction = Back.easeOut;
                                                break;
                                        case "Bounce" :
                                                effectMove.easingFunction = Bounce.easeOut;
                                                break;
                                        case "Circular" :
                                                effectMove.easingFunction = Circular.easeOut;
                                                break;
                                        case "Cubic" :
                                                effectMove.easingFunction = Cubic.easeOut;
                                                break;
                                        case "Elastic" :
                                                effectMove.easingFunction = Elastic.easeOut;
                                                break;
                                        case "Exponential" :
                                                effectMove.easingFunction = Exponential.easeOut;
                                                break;
                                        case "Linear" :
                                                effectMove.easingFunction = Linear.easeOut;
                                                break;
                                        case "Quadratic" :
                                                effectMove.easingFunction = Quadratic.easeOut;
                                                break;
                                        case "Quartic" :
                                                effectMove.easingFunction = Quartic.easeOut;
                                                break;
                                             case "Quintic" :
                                                effectMove.easingFunction = Quintic.easeOut;
                                                break;
                                        case "Sine" :
                                                effectMove.easingFunction = Sine.easeOut;
                                                break;
                                        default :
                                                break;
                                }
                        }
                        
                        private function effectEndHandler():void
                        {
                                p_w_picpath.x = 24;
                                p_w_picpath.y = 24;
                        }
                        
                ]]>
        </mx:Script>
        
        <mx:Move id="effectMove" target="{p_w_picpath}" duration="5000"
                easingFunction="{Bounce.easeOut}"    
                effectEnd="effectEndHandler();" />
        
        <mx:Canvas id="canvas" width="100%" height="100%">
                <mx:Image id="p_w_picpath" source="@Embed('p_w_picpaths/logo.png')"
                        x="24" y="24" width="48" height="48" />
                <mx:Button id="btnMove" label="移动" click="moveImage(event)" x="10" y="80"/>
                
                <mx:RadioButtonGroup id="radioGroup" change="radioChangeHandler();"/>
                <mx:RadioButton x="10" y="140" label="Back" groupName="radioGroup"/>
                <mx:RadioButton x="97" y="140" label="Bounce" groupName="radioGroup" selected="true"/>
                <mx:RadioButton x="199" y="140" label="Circular" groupName="radioGroup"/>
                <mx:RadioButton x="294" y="140" label="Cubic" groupName="radioGroup"/>
                <mx:RadioButton x="10" y="170" label="Elastic" groupName="radioGroup"/>
                <mx:RadioButton x="199" y="200" label="Exponential" groupName="radioGroup"/>
                <mx:RadioButton x="10" y="200" label="Linear" groupName="radioGroup"/>
                <mx:RadioButton x="97" y="200" label="Quadratic" groupName="radioGroup"/>
                <mx:RadioButton x="294" y="170" label="Quartic" groupName="radioGroup"/>
                <mx:RadioButton x="199" y="170" label="Quintic" groupName="radioGroup"/>
                <mx:RadioButton x="97" y="170" label="Sine" groupName="radioGroup"/>
        </mx:Canvas>
        
</mx:Panel>
 
 
6、CustomEasing.mxml
<?xml version="1.0" encoding="utf-8"?>

<!--
        实现自定义 easing 的 Demo
-->

<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="400" height="300"
        title="自定义 easing">

         <mx:Script>
                <![CDATA[
                
                        /**
                         *    @param t 当前时间，介于 0 - 持续时间 之间
                         *    @param b 动画属性的初始值
                         *    @param c 动画属性的总计变化值
                         *    @param d 运动的持续时间
                         */
                        private function myEasingFunction(t:Number, b:Number, c:Number, d:Number):Number    
                        {
                                if ((t /= d) < (1 / 2.75))    
                                {
                                        return c * (7.5625 * t * t) + b;
                                    }
                                    else if (t < (2 / 2.75))    
                                    {
                                        return c * (7.5625 * (t-=(1.5/2.75)) * t + .75) + b;
                                    }
                                    else if (t < (2.5 / 2.75))    
                                    {
                                        return c * (7.5625 * (t-=(2.25/2.75)) * t + .9375) + b;
                                    }
                                    else    
                                    {
                                            return c * (7.5625 * (t-=(2.625/2.75)) * t + .984375) + b;
                                    }
                        };
                        
                        private function moveImage(e:MouseEvent):void
                        {
                                var position:Point = new Point(stage.mouseX, stage.mouseY);
                                var localPosition:Point = canvas.globalToLocal(position);
                        
                                effectMove.end();        
                                effectMove.xTo = localPosition.x - (p_w_picpath.width / 2)
                                effectMove.yTo = localPosition.y - (p_w_picpath.height / 2)
                                effectMove.play();
                        }
                ]]>
        </mx:Script>

        <mx:Move id="effectMove" target="{p_w_picpath}" easingFunction="myEasingFunction" />
        
        <mx:Canvas id="canvas" width="100%" height="100%" mouseDown="moveImage(event)">
        
                <mx:Image id="p_w_picpath" source="@Embed('p_w_picpaths/logo.png')"
                        x="24" y="24" width="48" height="48"    
                 />
                    
        </mx:Canvas>
                
</mx:Panel>
 
 
7、Encyption3DES.mxml
<?xml version="1.0" encoding="utf-8"?>

<!--
        用 AS3 封装好的常用加密算法。详情 http://crypto.hurlant.com
        以下以 3DES 加密/解密为例
-->

<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"
        title="3DES - ECB 加密解密算法 Demo" width="424" height="382">

        <mx:Script>
                <![CDATA[
                        
                        import com.hurlant.crypto.symmetric.ICipher;
                        import com.hurlant.crypto.symmetric.PKCS5;
                        import com.hurlant.crypto.symmetric.IPad;
                        import com.hurlant.util.Base64;
                        import com.hurlant.util.Hex;
                        import com.hurlant.crypto.Crypto;
                        
                        private function encryptHandler():void    
                        {
                                var key:String = txtKey.text;
                                var keyData:ByteArray = Hex.toArray(Hex.fromString(key));

                                var plain:String = txtPlainText.text;
                                var plainData:ByteArray = Hex.toArray(Hex.fromString(plain));
                                
                                var name:String = "des3-ecb";
                                                        
                                var pad:IPad = new PKCS5;
                                var mode:ICipher = Crypto.getCipher(name, keyData, pad);
                                pad.setBlockSize(mode.getBlockSize());
                                mode.encrypt(plainData);
                                
                                var result:String = Base64.encodeByteArray(plainData);
                                txtCipherText.text = result;
                        }
                        
                        private function decryptHandler():void    
                        {
                                var key:String = txtKey.text;
                                var keyData:ByteArray = Hex.toArray(Hex.fromString(key));

                                var cipher:String = txtCipherText.text;
                                var cipherData:ByteArray = Base64.decodeToByteArray(cipher);;
                                
                                var name:String = "des3-ecb";
                                                        
                                var pad:IPad = new PKCS5;
                                var mode:ICipher = Crypto.getCipher(name, keyData, pad);
                                pad.setBlockSize(mode.getBlockSize());
                                mode.decrypt(cipherData);
                                
                                var result:String = Hex.toString(Hex.fromArray(cipherData));
                                txtPlainText.text = result;
                        }
                        
                ]]>
        </mx:Script>

        <mx:Label text="加密结果以 Base64 编码输出" x="10" y="10"/>
        <mx:Button x="286" y="184" label="加密" id="btnEncrypt" click="encryptHandler()"/>
        <mx:Button x="342" y="184" label="解密" id="btnDecrypt" click="decryptHandler()"/>
        <mx:TextInput x="53" y="34" width="337" id="txtKey" text="#s^un2ye31<cn%|aoXpR,+vh"/>
        <mx:Label x="10" y="36" text="密钥:"/>
        <mx:TextInput x="10" y="88" width="380" height="88" id="txtPlainText"/>
        <mx:TextInput x="10" y="240" width="380" height="88" id="txtCipherText"/>
        <mx:Label x="10" y="62" text="原文: "/>
        <mx:Label x="10" y="214" text="密文: "/>
        
</mx:Panel>
 
 
8、Other.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="400" height="300">
        <mx:Label text="懒了，Flex 还有好多东西啊，不过暂时先到这里吧"/>
        <mx:Label text="SoundEffect 用于播放声音"/>
        <mx:Label text="VideoDisplay 用于播放视频"/>
        <mx:Label text="调用 Flash 开发的 swc 组件时，一般将其放入 libs 目录内"/>
        <mx:Label text="减小主 Flex 程序的大小，可以把子模块写成 Module（被编译成独立的 swf） ，然后在需要的时候加载"/>
        <mx:Label text="编译 Flex 的两种方式：Merged into code；Runtime shared library (RSL)"/>
</mx:VBox>