9種原生js動畫效果(轉)

1，勻速動畫效果

window.onload = function(){
 var odiv = document.getElementById('odiv');
 odiv.onmouseover = function(){
  startMover(0);
 }
 odiv.onmouseout = function(){
  startMover(-200);
 }
}
var timer = null;
function startMover(itarget){//目標值
 clearInterval(timer);//執行當前動畫同時清除之前的動畫
 var odiv = document.getElementById('odiv');
 timer = setInterval(function(){
 var speed = 0;
 if(odiv.offsetLeft > itarget){
  speed = -1;
 }
 else{
  speed = 1;
 }
 if(odiv.offsetLeft == itarget){
  clearInterval(timer);
 }
 else{
  odiv.style.left = odiv.offsetLeft+speed+'px';
  }
 },30);
}

 

2，緩沖動畫效果

window.onload = function(){
 var odiv = document.getElementById('odiv');
 odiv.onmouseover = function(){
  startMover(0);
 }
 odiv.onmouseout = function(){
  startMover(-200);
 }
}
var timer = null;
function startMover(itarget){//速度和目標值
 clearInterval(timer);//執行當前動畫同時清除之前的動畫
 var odiv = document.getElementById('odiv');
 timer = setInterval(function(){
 var speed = (itarget-odiv.offsetLeft)/10;//緩沖動畫的速度參數變化值
 //如果速度是大於0，說明是向右走，那么就向上取整
 speed = speed>0?Math.ceil(speed):Math.floor(speed);
 //Math.floor();向下取整
 if(odiv.offsetLeft == itarget){
  clearInterval(timer);
 }
 else{
  //clientLeft 返回對象的offsetLeft屬性值和到當前窗口左邊的真實值之間的距離 
  odiv.style.left = odiv.offsetLeft+speed+'px';
  }
 },30);
}

 

3，透明度動畫

window.onload = function(){
 var odiv = document.getElementsByTagName('div');
 for(var i=0;i<odiv.length;i++)
 {
   odiv[i].onmouseover = function(){
   startOP(this,100);
  }
  odiv[i].onmouseout = function(){
   startOP(this,30);
  }
  odiv[i].timer = null;//事先定義
  odiv[i].alpha = null;//事先定義
  //這里發現一個問題，對象的動畫屬性可以不定義，但是透明度屬性必須定義，否則報錯
 }
}
function startOP(obj,utarget){
  clearInterval(obj.timer);//先關閉定時器
  obj.timer = setInterval(function(){
  var speed = 0;
  if(obj.alpha>utarget){
  speed = -10;
  }
  else{
  speed = 10;
  }
  obj.alpha = obj.alpha+speed;
  if(obj.alpha == utarget){
  clearInterval(obj.timer);
  }
  obj.style.filter = 'alpha(opacity:'+obj.alpha+')';//基於IE的
  obj.style.opacity = parseInt(obj.alpha)/100;
  },30); 
}

 

4，多物體動畫

window.onload = function(){
 var olist = document.getElementsByTagName('li');
 for(var i=0; i<olist.length;i++)
 {
  olist[i].onmouseover = function(){
  startmov(this,400);
  };
  olist[i].onmouseleave = function(){
  startmov(this,200);
  };
  olist[i].timer = null;
 }
 function startmov(obj,itarget){
  clearInterval(obj.timer);//執行動畫之前清除動畫
  obj.timer = setInterval(function(){
   var speed =0;
   speed = (itarget - obj.offsetWidth)/8;
   speed = speed>0?Math.ceil(speed):Math.floor(speed);
   if(obj.offsetWidth == itarget){
   clearInterval(obj.timer);
   }
   else{
   obj.style.width = obj.offsetWidth+speed+'px';
   }
  },30);
 }
}

 

5，獲取樣式動畫

window.onload = function(){
        var odiv = document.getElementById('odiv');
        odiv.onmouseover = function(){
            startMov(this);
        };
        function startMov(obj){
            setInterval(function(){
                obj.style.width = parseInt(getStyle(obj,'width'))+1+'px';
                obj.style.fontSize = parseInt(getStyle(obj,'fontSize'))+1+'px';
            },30);
        }
        function getStyle(obj,attr)
        {
            if(obj.currentStyle){
                return obj.currentStyle[attr];
            }
            else{
                return getComputedStyle(obj,false)[attr];
            }
        }
    }

 

6，多物體復雜動畫

window.onload = function(){
 var li1 = document.getElementById('li1');
 var li2 = document.getElementById('li2');
 li1.onmouseover = function(){
  startMov(this,400,'width');
 };
 li1.onmouseout = function(){
  startMov(this,200,'width');
 };
 li2.onmouseover = function(){
  startMov(this,200,'height');
 };
 li2.onmouseout = function(){
  startMov(this,100,'height');
 };
 function startMov(obj,itarget,attr){
  clearInterval(obj.timer);//執行動畫之前清除動畫
  obj.timer = setInterval(function(){
   var icur = parseInt(getStyle(obj,attr));
   var speed =0;
   speed = (itarget - icur)/8;
   speed = speed>0?Math.ceil(speed):Math.floor(speed);
   if(icur == itarget){
   clearInterval(obj.timer);
   }
   else{
   obj.style[attr] = icur+speed+'px';
   }
  },30);
 }
 function getStyle(obj,attr)
 {
  if(obj.currentStyle){
  return obj.currentStyle[attr];
  }
  else{
  return getComputedStyle(obj,false)[attr];
  }
 }
}

 

7，多物體復雜動畫（帶透明度的）

window.onload = function(){
 var li1 = document.getElementById('li1');
 var li2 = document.getElementById('li2');
 li1.onmouseover = function(){
  startMov(this,100,'opacity');
 };
 li1.onmouseout = function(){
  startMov(this,30,'opacity');
 };
 li2.onmouseover = function(){
  startMov(this,200,'height');
 };
 li2.onmouseout = function(){
  startMov(this,100,'height');
 }
 li1.timer = null;
 li2.timer = null;
 function startMov(obj,itarget,attr){
  clearInterval(obj.timer);//執行動畫之前清除動畫
  obj.timer = setInterval(function(){
   var icur = 0;
   if(attr == 'opacity'){
   icur = Math.round(parseFloat(getStyle(obj,attr))*100);//轉換成整數,並且四舍五入下
   //計算機在計算小數的時候往往是不准確的！
   }
   else{
   icur = parseInt(getStyle(obj,attr));
   }
   var speed =0;
   speed = (itarget - icur)/8;
   speed = speed>0?Math.ceil(speed):Math.floor(speed);
   if(icur == itarget){
   clearInterval(obj.timer);
   }
   else{
    if(attr == 'opacity'){
    obj.style.filter = 'alpha(opacity:'+(icur+speed)+')';
    obj.style.opacity = (icur+speed)/100;
    }
    else{
    obj.style[attr] = icur+speed+'px';
    } 
   }
  },30);
 }
 function getStyle(obj,attr)
 {
  if(obj.currentStyle){
  return obj.currentStyle[attr];
  }
  else{
  return getComputedStyle(obj,false)[attr];
  }
 }
}

 

8，鏈式動畫

window.onload = function(){
 var li1 = document.getElementById('li1');
 li1.onmouseover = function(){
  startMov(li1,400,'width',function(){
   startMov(li1,200,'height',function(){
   startMov(li1,100,'opacity');
   });
  });
 };
 li1.onmouseout = function(){
  startMov(li1,30,'opacity',function(){
   startMov(li1,100,'height',function(){
   startMov(li1,100,'width');
   });
  });
 };
 li1.timer = null;
 function startMov(obj,itarget,attr,fn){//fn回調函數
  clearInterval(obj.timer);//執行動畫之前清除動畫
  obj.timer = setInterval(function(){
   var icur = 0;
   if(attr == 'opacity'){
   icur = Math.round(parseFloat(getStyle(obj,attr))*100);//轉換成整數,並且四舍五入下
   //計算機在計算小數的時候往往是不准確的！
   }
   else{
   icur = parseInt(getStyle(obj,attr));
   }
   var speed =0;
   speed = (itarget - icur)/8;
   speed = speed>0?Math.ceil(speed):Math.floor(speed);
   if(icur == itarget){
   clearInterval(obj.timer);
   if(fn){
    fn();
   }
   }
   else{
    if(attr == 'opacity'){
    obj.style.filter = 'alpha(opacity:'+(icur+speed)+')';
    obj.style.opacity = (icur+speed)/100;
    }
    else{
    obj.style[attr] = icur+speed+'px';
    } 
   }
  },30);
 }
 function getStyle(obj,attr)
 {
  if(obj.currentStyle){
  return obj.currentStyle[attr];
  }
  else{
  return getComputedStyle(obj,false)[attr];
  }
 }
}

 

9，多物體同時運動動畫

window.onload = function(){
 var li1 = document.getElementById('li1');
 li1.onmouseover = function(){
  startMov(li1,{width:201,height:200,opacity:100});
 };
 li1.onmouseout = function(){
  startMov(li1,{width:200,height:100,opacity:30});
 };
 li1.timer = null;
 function startMov(obj,json,fn){//fn回調函數
  clearInterval(obj.timer);//執行動畫之前清除動畫
  var flag = true;//是否動畫都完成了
  obj.timer = setInterval(function(){
   for(var attr in json){
   var icur = 0;
   if(attr == 'opacity'){
   icur = Math.round(parseFloat(getStyle(obj,attr))*100);//轉換成整數,並且四舍五入下
   //計算機在計算小數的時候往往是不准確的！
   }
   else{
   icur = parseInt(getStyle(obj,attr));
   }
   var speed =0;
   speed = (json[attr] - icur)/8;
   speed = speed>0?Math.ceil(speed):Math.floor(speed);
   if(icur != json[attr]){
   flag = false;
   }
   if(attr == 'opacity'){
   obj.style.filter = 'alpha(opacity:'+(icur+speed)+')';
   obj.style.opacity = (icur+speed)/100;
   }
   else{
   obj.style[attr] = icur+speed+'px';
   }
   if(flag){
   clearInterval(obj.timer);
   if(fn){
    fn();
   }
   }
  }
  },30);
 }
 function getStyle(obj,attr)
 {
  if(obj.currentStyle){
  return obj.currentStyle[attr];
  }
  else{
  return getComputedStyle(obj,false)[attr];
  }
 }
}