纯AS动感LOADING,可以开启随机12种效果

//加载需要使用的类
import?mx.transitions.Tween;
import?mx.transitions.easing.*;
//初始化各项参数
var?_this:MovieClip?=?this;//进度条总长度
var?bar_width:Number?=?200;//进度条总高度
var?bar_height:Number?=?15;//细柱进度个数
var?barItemNum:Number?=?25;
//细柱进度宽度
var?Item_width:Number?=?bar_width/barItemNum;//细柱进度间隔像素
var?Item_xInterval:Number?=?2;//细柱进度编码
var?Item_Index:Number?=?1;//是否已经结束
var?MotionEnd:Boolean=false;//正在下载的编码
var?NowDownIndex:Number;//细柱进度颜色
var?barColor:Number?=?0xffff00;//初始化效果库
var?inEffect_lib:Array?=?new?Array("Effect_fadeRandomMoveIn",?"Effect_fadeIn",?"Effect_XDropIn",?"Effect_YDropIn",?
"Effect_WindIn",?"Effect_XElasticIn",?"Effect_YElasticIn");?
var?outEffect_lib:Array?=?new?Array("Effect_fadeRandomMoveOut",?"Effect_fadeOut",?"Effect_RandomXmove",?
"Effect_RandomYmove",?"Effect_WindOut",?"Effect_ElasticYOut");//是否开启效果
var?OpenEffect:Boolean?=?true;//开始效果编号
var?StartEffect:Number?=?4;//结束效果编号
var?EndEffect:Number?=?4;//是否开启随机效果
var?RandomEffect:Boolean?=?true;
if?(RandomEffect)?{
?var?StartEffect:Number?=?random(inEffect_lib.length);
?var?EndEffect:Number?=?random(outEffect_lib.length);
}//是否显示进度数字?????
var?ShowLoadNum:Boolean?=?true;
if?(ShowLoadNum)?{
?var?TF_format:TextFormat?=?new?TextFormat();
?TF_format.color?=?barColor;
?TF_format.align?=?"right";
?var?progressNum:TextField?=?this.createTextField("progressNum",?2,?-50,?-2,?50,?20);
?progressNum.selectable?=?false;
}//是否开启背景?????
var?OpenBack:Boolean?=?true;//背景颜色
var?BackColor:Number?=?0x000000;
if?(OpenBack)?{
?var?progress_back:MovieClip?=?this.createEmptyMovieClip("progress_back",?1);
?progress_back._x?=?-5;
?progress_back._y?=?-2.5;
?roundedRectangle(progress_back,?bar_width+8,?bar_height+5,?5,?BackColor,?100);
?if?(ShowLoadNum)?{
??progress_back._x?=?-34;
??roundedRectangle(progress_back,?bar_width+36,?bar_height+5,?5,?BackColor,?100);
?}
?if?(OpenEffect)?{
??var?NewMC_tween:Object?=?new?Tween(progress_back,?"_xscale",?Elastic.easeOut,?0,?100,?1,?true);
?}
}//函数????
//创建进度条
function?buildBar(loadedBytes,?totalBytes)?{
?NowDownIndex?=?Math.round((loadedBytes/totalBytes)*barItemNum)+1;
?progressNum.text?=?Math.round((loadedBytes/totalBytes)*100)+"%";
?progressNum.setTextFormat(TF_format);
?if?(Item_IndexItem_Index)?{
??for?(var?i:Number?=?Item_Index;?i
//定义结束触发函数
var?finnishFuc:Number;
function?onLoadFinnished()?{
?finnishFuc?=?setInterval(_this,?"onAllOver",?50);
}
//结束效果完成后函数
//Back,Bounce,Elastic,None,Regular,Strong
function?onAllOver()?{
?this[outEffect_lib[EndEffect]]();
?Item_Index--;
?if?(Item_Index
//删除所有Interval
function?clearAll(Void):Void?{
?var?tmpId:Number?=?setInterval(function?()?{
?},?10);
?while?(--tmpId>0)?{
??clearInterval(tmpId);
?}
}
//loading结束后函数
function?onAllMoved()?{
?Item_Index?=?NowDownIndex;
?if?(Item_Index>=barItemNum)?{
??NewMC_tween.onMotionFinished?=?function()?{
???onLoadFinnished();
??};
?}
}
//================================================
var NewMC_tween:Object;
//退出效果
function?Effect_fadeRandomMoveOut()?{
?var?NewMC:MovieClip?=?this["rect_"+Item_Index];
?NewMC_tween?=?new?Tween(NewMC,?"_alpha",?Strong.easeIn,?100,?0,?1,?true);
?NewMC_tween?=?new?Tween(NewMC,?"_x",?Strong.easeIn,?NewMC._x,?random(Stage.width)-this._x,?1,?true);
?NewMC_tween?=?new?Tween(NewMC,?"_y",?Strong.easeIn,?NewMC._y,?random(Stage.height)-this._y,?1,?true);
}
function?Effect_fadeOut()?{
?var?NewMC:MovieClip?=?this["rect_"+Item_Index];
?NewMC_tween?=?new?Tween(NewMC,?"_alpha",?Strong.easeIn,?100,?0,?1,?true);
}
function?Effect_RandomXmove()?{
?var?NewMC:MovieClip?=?this["rect_"+Item_Index];
?NewMC_tween?=?new?Tween(NewMC,?"_alpha",?Strong.easeIn,?100,?0,?1,?true);
?NewMC_tween?=?new?Tween(NewMC,?"_x",?Strong.easeIn,?NewMC._x,?random(Stage.width)-this._x,?1,?true);
}
function?Effect_RandomYmove()?{
?var?NewMC:MovieClip?=?this["rect_"+Item_Index];
?NewMC_tween?=?new?Tween(NewMC,?"_alpha",?Strong.easeIn,?100,?0,?1,?true);
?NewMC_tween?=?new?Tween(NewMC,?"_y",?Strong.easeIn,?NewMC._y,?random(Stage.height)-this._y,?1,?true);
}
function?Effect_WindOut()?{
?var?NewMC:MovieClip?=?this["rect_"+Item_Index];
?NewMC_tween?=?new?Tween(NewMC,?"_alpha",?Strong.easeIn,?100,?0,?1,?true);
?NewMC_tween?=?new?Tween(NewMC,?"_x",?Strong.easeIn,?NewMC._x,?NewMC._x-100,?1,?true);
?NewMC_tween?=?new?Tween(NewMC,?"_y",?Strong.easeIn,?NewMC._y,?NewMC._y-50,?1,?true);
}
function?Effect_ElasticYOut()?{
?var?NewMC:MovieClip?=?this["rect_"+Item_Index];
?NewMC_tween?=?new?Tween(NewMC,?"_alpha",?Strong.easeIn,?100,?0,?1,?true);
?NewMC_tween?=?new?Tween(NewMC,?"_y",?Elastic.easeIn,?NewMC._y,?random(Stage.height)-this._y,?1,?true);
}
//进入效果
function?Effect_fadeRandomMoveIn()?{
?for?(var?i:Number?=?Item_Index;?i
//=============================================
//画圆角矩形
function?roundedRectangle(target_mc:MovieClip,?boxWidth:Number,?boxHeight:Number,?
cornerRadius:Number,?fillColor:Number,?fillAlpha:Number):Void?{?
?with?(target_mc)?{?
??clear();?
??beginFill(fillColor,?fillAlpha);?
??moveTo(cornerRadius,?0);?
??lineTo(boxWidth-cornerRadius,?0);?
??curveTo(boxWidth,?0,?boxWidth,?cornerRadius);?
??lineTo(boxWidth,?cornerRadius);?
??lineTo(boxWidth,?boxHeight-cornerRadius);?
??curveTo(boxWidth,?boxHeight,?boxWidth-cornerRadius,?boxHeight);?
??lineTo(boxWidth-cornerRadius,?boxHeight);?
??lineTo(cornerRadius,?boxHeight);?
??curveTo(0,?boxHeight,?0,?boxHeight-cornerRadius);?
??lineTo(0,?boxHeight-cornerRadius);?
??lineTo(0,?cornerRadius);?
??curveTo(0,?0,?cornerRadius,?0);?
??lineTo(cornerRadius,?0);?
??endFill();?
?}?
}
本文转自：http://www.5uflash.com/flashjiaocheng/Flash-loadingjiaocheng/2049.html