運動，其實就是在一段時間內改變 left
、 right
、 width
、 height
、 opactiy
的值，到達目的地之后停止
-
位移
top,left -
折疊
width,height -
淡入淡出
opacity -
時間有關系
-
setInterval -
setTimeout
-
- 用javascript直接獲取行間樣式很容易，但如果要獲取非行間樣式那我們只能借助函數了。我這里編寫了一個名為getStyle的函數，專門處理取非行間的樣式
functiongetStyle(obj,attr){
return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr];
}
1.2 一些案例演示
1.2.1 運動之速
lt;divid="box"gt;lt;/divgt;
#box {
width: 100px;
height: 100px;
background: red;
position: relative;
left: 0;
}
var box = document.getElementById("box");
var speed = 0; //步長
var target = 600;
var timer = null;
timer = setInterval(function(){
var curr = parseInt(getStyle(box,"left")); //去除getStyle(box,"left")的單位
if(curr == target){
clearInterval(timer);
speed = 0;
alert("運動結束");
}else{
speed =10;
box.style.left = speed "px";
}
},1000/30);
//監控left的值的變化 怎么樣拿到left的值
//alert(getComputedStyle(box)["width"]);
//alert(box.currentStyle["left"]);
// currentStyle --IE
// getComputedStyle -- 非IE
functiongetStyle(obj,attr){
return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr];
}
1.2.2 運動速度之封裝1
lt;divid="ball"gt;lt;/divgt;
#ball {
width: 100px;
height: 100px;
background: blue;
}
var ball = document.getElementById("ball");
ball.onmouseover = function(){
//同時變換 用的最多
//move(this,"width",500,10);
//move(this,"height",500,10);
move(ball,{"width":400,"height":300},10);
}
ball.onmouseout = function(){
//move(this,"width",100,-10);
//move(this,"height",100,-10);
move(ball,{"width":100,"height":100},-10);
}
functionmove(obj,json,speed){
clearInterval(obj.timer);
var mark = true;
obj.timer = setInterval(function(){
for(var attr in json){
var curr = parseInt(getStyle(obj,attr));
var target = json[attr];
if(curr != target){
obj.style[attr] = curr speed "px";
mark = false;
}
}
if(mark){
clearInterval(obj.timer);
}
},1000/30);
}
functiongetStyle(obj,attr){
return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr];
}
-
需要注意的地方
- 當需要兩個動畫的時候，會執行后面一個，解決辦法如下，回調函數
- 當需要兩個以上的時候，需要考慮是否可寫一行代碼變換多個屬性
- 變換不一致的時候，定時器被提前清除
1.2.3 運動速度之封裝2–增加opacity
lt;divid="ball"gt;lt;/divgt;
#ball {
position: relative;
left: 0;
top: 0;
width: 100px;
height: 100px;
background: blue;
opacity: 1;
}
var ball = document.getElementById("ball");
ball.onmouseover = function(){
move(ball,{"width":300,"height":300,"opacity":0.3});
}
// ball.onmouseout = function(){
// move(ball,{"width":100,"height":100},-10);
// }
functionmove(obj,json){
clearInterval(obj.timer);
var mark = true;
obj.timer = setInterval(function(){
for(var attr in json){
var curr = null;
var target = json[attr];
var speed = null;
if(attr == "opacity"){
curr = getStyle(obj,attr)*100;
speed = (target*100-curr)*0.15;
}else {
curr = parseInt(getStyle(obj,attr));
speed = (target - curr)*0.15;
}
speed = speedgt;0 ? Math.ceil(speed):Math.floor(speed);
if(curr != target){
if(attr == "opacity"){
obj.style[attr] = (curr speed)/100;
}else {
obj.style[attr] = curr speed "px";
}
mark = false;
}
}
if(mark){
clearInterval(obj.timer);
}
},1000/30);
}
functiongetStyle(obj,attr){
return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr];
}
-
需要注意的地方
- 當需要兩個動畫的時候，會執行后面一個，解決辦法如下，回調函數
- 當需要兩個以上的時候，需要考慮是否可寫一行代碼變換多個屬性
- 變換不一致的時候，定時器被提前清除
-
速度
speed不要寫死
1.3 運動框架之應用
1.3.1 分享按鈕
lt;divid="ball"gt;lt;/divgt; lt;divid="box1"gt; lt;divid="box2"gt;分享到lt;/divgt; lt;/divgt;
var box1 = document.getElementById("box1");
var ball = document.getElementById("ball");
box1.onmouseover = function(){
move(this,"left",0,10);
}
box1.onmouseout = function(){
move(this,"left",-100,-10);
}
//問題一：當需要兩個動畫的時候，會執行后面一個，解決辦法如下，回調函數
ball.onmouseover = function(){
//同時變換 用的最多
//move(this,"width",500,10);
//move(this,"height",500,10);
//列隊在執行
move(ball,"width",500,10,function(){
move(ball,"height",500,10);
});
}
ball.onmouseout = function(){
//move(this,"width",100,-10);
//move(this,"height",100,-10);
move(ball,"width",100,-10,function(){
move(ball,"height",100,-10);
});
}
var timer = null;
functionmove(obj,attr,target,speed,callback){
clearInterval(timer); //obj.timer緩存到各自的obj下
timer = setInterval(function(){
var curr = parseInt(getStyle(obj,attr));
if(curr == target){
clearInterval(timer);
callback callback();
}else {
obj.style[attr] = curr speed "px";
}
},1000/30);
}
functiongetStyle(obj,attr){
return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr];
}
1.3.2運動框架之輪播圖應用
1.3.2.1 焦點輪播–左右-無縫-速度版實現
lt;divid="box"gt;
lt;ulid="imgBox"gt;
lt;ligt;lt;/ligt;
lt;ligt;lt;/ligt;
lt;ligt;lt;/ligt;
lt;ligt;lt;/ligt;
lt;ligt;lt;/ligt;
lt;/ulgt;
lt;olid="btn"gt;
lt;liclass="active"gt;1lt;/ligt;
lt;ligt;2lt;/ligt;
lt;ligt;3lt;/ligt;
lt;ligt;4lt;/ligt;
lt;/olgt;
lt;/divgt;
lt;scriptsrc="http://7xq6al.com1.z0.glb.clouddn.com/Animate.min.js"gt;lt;/scriptgt;
lt;scripttype="text/javascript"gt;
var box = document.querySelector("#box");
var imgUl = document.querySelector("#imgBox");
var btns = document.querySelector("#btn").querySelectorAll("li");
var len = btns.length;
var lenImg = imgUl.querySelectorAll("li").length;
var index = 0; //控制img的索引
var cindex = 0;//控制按鈕的索引
var timer = null;
for (var i=0;ilt;len;i ) {
(function(index){
btns[index].onmouseover = function(){
for (var j=0;jlt;len;j ){
btns[j].className = "";
}
cindex = index;//保持索引同步
animateSpeed(imgUl,{"left":-970*index});
this.className = "active";
}
})(i);
}
functionautoPlay(){
index ;
cindex ;
cindex %=len;//限制長度
for (var j=0;jlt;len;j ){
btns[j].className = "";
}
animateSpeed(imgUl,{"left":-970*index},function(){
if(index == lenImg-1){
this.style.left = 0;
index = 0;
}
});
btns[cindex].className = "active";
}
timer = setInterval(autoPlay,2000);
box.onmouseover = function(){
clearInterval(timer);
}
box.onmouseout = function(){
timer = setInterval(autoPlay,2000);
}
lt;/scriptgt;
*{
padding: 0;
margin: 0;
}
body{
font-size: 14px;
font-family: "微軟雅黑";
}
ul,li{
list-style: none;
}
#box {
position: relative;
width: 970px;
height: 350px;
margin: 30px auto;
overflow: hidden;
}
#imgBox {
width:1000%;/*自動計算百分比*/
position: absolute;
left: 0;
}
#imgBox li{
width: 970px;
height: 350px;
float: left;
}
#imgBox li img {
width: 970px;
height: 350px;
}
#btn {
width: 120px;
position: absolute;
right: 10px;
bottom: 10px;
}
#btn li {
width: 20px;
height: 20px;
line-height: 20px;
border-radius: 50%;
text-align: center;
cursor: pointer;
background: #fff;
margin: 0 2px;
float: left;
}
#btn li.active {
background: #F17A5C;
color: #fff;
}
//速度版本
(function(win){
functionmove(obj,json,callback){
clearInterval(obj.timer);
obj.timer = setInterval(function(){
var mark = true;
for(var attr in json){
var cur = null;
if(attr == "opacity"){
cur = getStyle(obj,attr)*100;
}else{
//如果沒寫 默認填充成0
cur = parseInt(getStyle(obj,attr))||0;
}
var target = json[attr];
var speed = (target - cur)*0.2;
speed = speedgt;0?Math.ceil(speed):Math.floor(speed);
if(cur != target){
if(attr == "opacity"){
//IE opacity兼容問題
obj.style.filter = "alpha(opacity=" (cur speed) ")";
obj.style[attr] = (cur speed)/100;
}else{
obj.style[attr] = cur speed "px";
}
mark = false;
};
}
if(mark){
clearInterval(obj.timer);
callback callback.call(obj);
}
},1000/30);
}
win.animateSpeed = move;
})(window);
functiongetStyle(obj,attr){
return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr];
}
functiongetId(id){
return document.getElementById(id);
}
二、JavaScript運動框架之時間版
2.1 關于運動
- 速度的運動 通過速度來控制元素的 位移 / 折疊 / 淡入淡出
- 時間的運動 通過時間來控制元素的 位移 / 折疊 / 淡入淡出(jQuery)
- 時間的運動 基于一些數學公式 勻速運動 在路程的每一個點 速度都一樣
2.2 一些案例演示
2.3 運動框架之時間版本-借助animate一些函數實現–綜合完整版
lt;divid="box2"gt;lt;/divgt;
lt;divid="box3"gt;lt;/divgt;
lt;divid="box4"gt;lt;/divgt;
lt;divid="box5"gt;lt;/divgt;
lt;scripttype="text/javascript"gt;
//時間版本
getId("box2").onclick = function(){
animateTime(getId("box2"),{
"left":500,
"opacity":100
},1000,"elasticOut",function(){
this.innerHTML = "我是時間版本";
});
}
getId("box3").onclick = function(){
animateTime(getId("box3"),{
"left":500,
"opacity":100
},1000,"backIn",function(){
this.innerHTML = "我是時間版本";
});
}
getId("box4").onclick = function(){
animateTime(getId("box4"),{
"left":500,
"opacity":100
},1000,"bounceIn",function(){
this.innerHTML = "我是時間版本";
});
}
getId("box5").onclick = function(){
animateTime(getId("box5"),{
"left":500,
"opacity":100
},1000,"bounceBoth",function(){
this.innerHTML = "我是時間版本";
});
}
lt;/scriptgt;
#box1,#box2,#box3,#box4,#box5 {
position: relative;
width: 100px;
height: 100px;
line-height: 100px;
text-align: center;
background: red;
color: #fff;
font-size: 12px;
opacity: 0.5;
filter:alpha(opcity=20);/**兼容IE*/
margin: 10px;
}
/*t b c d
t current time :nTime-sTime
b begining time :curr
c chang in value :變化量end-curr
d duration :持續時間 time */
/**
*
* @param {Object} obj 元素對象
* @param {Object} json 多個屬性
* @param {Object} time 變化時間
* @param {Object} prop 運動函數
* @param {Object} callback 回調函數
*/
//時間版本
(function(win){
functionmove(obj,json,time,prop,callback){
//一般定時器結束后最好清除
clearInterval(obj.timer);
var curr = {};
var end = {};
//通過for in 在上車前把所有東西裝到包里
for(var attr in json){
if(attr == "opacity"){//opacity特殊東西特殊對待
curr[attr] = getStyle(obj,attr)*100;//化為整數好計算
}else{
curr[attr] = parseInt(getStyle(obj,attr))||0;
}
end[attr] = json[attr];
}
//如果沒寫默認值 默認就是0 不然在IE出問題
//var curr = parseInt(getStyle(obj,attr))||0;
//var end = target;
var sTime = new Date();//開始時間T0
//開始變換了
obj.timer = setInterval(function(){
var nTime = new Date();//當前時間Tt
var t = nTime -sTime;
var d = time;
//St = (Tt-T0)/Time*(S-S0) S0
//(nTime-sTime)/time 比例最多為1
/*var prop = (nTime-sTime)/time; */
if(t gt;=d){
t = d;
clearInterval(obj.timer);
callback callback.call(obj);
}
for(var attr in json){
var b = curr[attr];
var c = end[attr] - b;
if(attr == "opacity"){
//var s = prop*(end[attr]-curr[attr]) curr[attr];
var s = Tween[prop](t,b,c,d);
obj.style[attr] = s/100;
obj.style.filter = "alpha(opacity=" s ")";
}else{
//var s = prop*(end[attr]-curr[attr]) curr[attr];
var s = Tween[prop](t,b,c,d);
obj.style[attr] = s "px";
}
}
},13);
var Tween = {
linear: function(t, b, c, d){ //勻速
return c*t/d b; // t/d = prop;
},
easeIn: function(t, b, c, d){ //加速曲線
return c*(t/=d)*t b;
},
easeOut: function(t, b, c, d){ //減速曲線
return -c *(t/=d)*(t-2) b;
},
easeBoth: function(t, b, c, d){ //加速減速曲線
if ((t/=d/2) lt; 1) {
return c/2*t*t b;
}
return -c/2 * ((--t)*(t-2) - 1) b;
},
easeInStrong: function(t, b, c, d){ //加加速曲線
return c*(t/=d)*t*t*t b;
},
easeOutStrong: function(t, b, c, d){ //減減速曲線
return -c * ((t=t/d-1)*t*t*t - 1) b;
},
easeBothStrong: function(t, b, c, d){ //加加速減減速曲線
if ((t/=d/2) lt; 1) {
return c/2*t*t*t*t b;
}
return -c/2 * ((t-=2)*t*t*t - 2) b;
},
elasticIn: function(t, b, c, d, a, p){ //正弦衰減曲線（彈動漸入）
if (t === 0) {
return b;
}
if ( (t /= d) == 1 ) {
return b c;
}
if (!p) {
p=d*0.3;
}
if (!a || a lt; Math.abs(c)) {
a = c;
var s = p/4;
} else {
var s = p/(2*Math.PI) * Math.asin (c/a);
}
return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) b;
},
elasticOut: function(t, b, c, d, a, p){ //正弦增強曲線（彈動漸出）
if (t === 0) {
return b;
}
if ( (t /= d) == 1 ) {
return b c;
}
if (!p) {
p=d*0.3;
}
if (!a || a lt; Math.abs(c)) {
a = c;
var s = p / 4;
} else {
var s = p/(2*Math.PI) * Math.asin (c/a);
}
return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) c b;
},
elasticBoth: function(t, b, c, d, a, p){
if (t === 0) {
return b;
}
if ( (t /= d/2) == 2 ) {
return b c;
}
if (!p) {
p = d*(0.3*1.5);
}
if ( !a || a lt; Math.abs(c) ) {
a = c;
var s = p/4;
}
else {
var s = p/(2*Math.PI) * Math.asin (c/a);
}
if (t lt; 1) {
return - 0.5*(a*Math.pow(2,10*(t-=1)) *
Math.sin( (t*d-s)*(2*Math.PI)/p )) b;
}
return a*Math.pow(2,-10*(t-=1)) *
Math.sin( (t*d-s)*(2*Math.PI)/p )*0.5 c b;
},
backIn: function(t, b, c, d, s){ //回退加速（回退漸入）
if (typeof s == 'undefined') {
s = 1.70158;
}
return c*(t/=d)*t*((s 1)*t - s) b;
},
backOut: function(t, b, c, d, s){
if (typeof s == 'undefined') {
s = 3.70158; //回縮的距離
}
return c*((t=t/d-1)*t*((s 1)*t s) 1) b;
},
backBoth: function(t, b, c, d, s){
if (typeof s == 'undefined') {
s = 1.70158;
}
if ((t /= d/2 ) lt; 1) {
return c/2*(t*t*(((s*=(1.525)) 1)*t - s)) b;
}
return c/2*((t-=2)*t*(((s*=(1.525)) 1)*t s) 2) b;
},
bounceIn: function(t, b, c, d){ //彈球減振（彈球漸出）
return c - Tween['bounceOut'](d-t, 0, c, d) b;
},
bounceOut: function(t, b, c, d){
if ((t/=d) lt; (1/2.75)) {
return c*(7.5625*t*t) b;
} else if (t lt; (2/2.75)) {
return c*(7.5625*(t-=(1.5/2.75))*t 0.75) b;
} else if (t lt; (2.5/2.75)) {
return c*(7.5625*(t-=(2.25/2.75))*t 0.9375) b;
}
return c*(7.5625*(t-=(2.625/2.75))*t 0.984375) b;
},
bounceBoth: function(t, b, c, d){
if (t lt; d/2) {
return Tween['bounceIn'](t*2, 0, c, d) * 0.5 b;
}
return Tween['bounceOut'](t*2-d, 0, c, d) * 0.5 c*0.5 b;
}
};
}
win.animateTime = move;
})(window);
三、運動框架之時間速度版完整封裝
/*t b c d
t current time :nTime-sTime
b begining time :curr
c chang in value :變化量end-curr
d duration :持續時間 time */
/**
*
* @param {Object} obj 元素對象
* @param {Object} json 多個屬性
* @param {Object} time 變化時間
* @param {Object} prop 運動函數
* @param {Object} callback 回調函數
*/
//時間版本
(function(win){
functionmove(obj,json,time,prop,callback){
//一般定時器結束后最好清除
clearInterval(obj.timer);
var curr = {};
var end = {};
//通過for in 在上車前把所有東西裝到包里
for(var attr in json){
if(attr == "opacity"){//opacity特殊東西特殊對待
curr[attr] = getStyle(obj,attr)*100;//化為整數好計算
}else{
curr[attr] = parseInt(getStyle(obj,attr))||0;
}
end[attr] = json[attr];
}
//如果沒寫默認值 默認就是0 不然在IE出問題
//var curr = parseInt(getStyle(obj,attr))||0;
//var end = target;
var sTime = new Date();//開始時間T0
//開始變換了
obj.timer = setInterval(function(){
var nTime = new Date();//當前時間Tt
var t = nTime -sTime;
var d = time;
//St = (Tt-T0)/Time*(S-S0) S0
//(nTime-sTime)/time 比例最多為1
/*var prop = (nTime-sTime)/time; */
if(t gt;=d){
t = d;
clearInterval(obj.timer);
callback callback.call(obj);
}
for(var attr in json){
var b = curr[attr];
var c = end[attr] - b;
if(attr == "opacity"){
//var s = prop*(end[attr]-curr[attr]) curr[attr];
var s = Tween[prop](t,b,c,d);
obj.style[attr] = s/100;
obj.style.filter = "alpha(opacity=" s ")";
}else{
//var s = prop*(end[attr]-curr[attr]) curr[attr];
var s = Tween[prop](t,b,c,d);
obj.style[attr] = s "px";
}
}
},13);
var Tween = {
linear: function(t, b, c, d){ //勻速
return c*t/d b; // t/d = prop;
},
easeIn: function(t, b, c, d){ //加速曲線
return c*(t/=d)*t b;
},
easeOut: function(t, b, c, d){ //減速曲線
return -c *(t/=d)*(t-2) b;
},
easeBoth: function(t, b, c, d){ //加速減速曲線
if ((t/=d/2) lt; 1) {
return c/2*t*t b;
}
return -c/2 * ((--t)*(t-2) - 1) b;
},
easeInStrong: function(t, b, c, d){ //加加速曲線
return c*(t/=d)*t*t*t b;
},
easeOutStrong: function(t, b, c, d){ //減減速曲線
return -c * ((t=t/d-1)*t*t*t - 1) b;
},
easeBothStrong: function(t, b, c, d){ //加加速減減速曲線
if ((t/=d/2) lt; 1) {
return c/2*t*t*t*t b;
}
return -c/2 * ((t-=2)*t*t*t - 2) b;
},
elasticIn: function(t, b, c, d, a, p){ //正弦衰減曲線（彈動漸入）
if (t === 0) {
return b;
}
if ( (t /= d) == 1 ) {
return b c;
}
if (!p) {
p=d*0.3;
}
if (!a || a lt; Math.abs(c)) {
a = c;
var s = p/4;
} else {
var s = p/(2*Math.PI) * Math.asin (c/a);
}
return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) b;
},
elasticOut: function(t, b, c, d, a, p){ //正弦增強曲線（彈動漸出）
if (t === 0) {
return b;
}
if ( (t /= d) == 1 ) {
return b c;
}
if (!p) {
p=d*0.3;
}
if (!a || a lt; Math.abs(c)) {
a = c;
var s = p / 4;
} else {
var s = p/(2*Math.PI) * Math.asin (c/a);
}
return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) c b;
},
elasticBoth: function(t, b, c, d, a, p){
if (t === 0) {
return b;
}
if ( (t /= d/2) == 2 ) {
return b c;
}
if (!p) {
p = d*(0.3*1.5);
}
if ( !a || a lt; Math.abs(c) ) {
a = c;
var s = p/4;
}
else {
var s = p/(2*Math.PI) * Math.asin (c/a);
}
if (t lt; 1) {
return - 0.5*(a*Math.pow(2,10*(t-=1)) *
Math.sin( (t*d-s)*(2*Math.PI)/p )) b;
}
return a*Math.pow(2,-10*(t-=1)) *
Math.sin( (t*d-s)*(2*Math.PI)/p )*0.5 c b;
},
backIn: function(t, b, c, d, s){ //回退加速（回退漸入）
if (typeof s == 'undefined') {
s = 1.70158;
}
return c*(t/=d)*t*((s 1)*t - s) b;
},
backOut: function(t, b, c, d, s){
if (typeof s == 'undefined') {
s = 3.70158; //回縮的距離
}
return c*((t=t/d-1)*t*((s 1)*t s) 1) b;
},
backBoth: function(t, b, c, d, s){
if (typeof s == 'undefined') {
s = 1.70158;
}
if ((t /= d/2 ) lt; 1) {
return c/2*(t*t*(((s*=(1.525)) 1)*t - s)) b;
}
return c/2*((t-=2)*t*(((s*=(1.525)) 1)*t s) 2) b;
},
bounceIn: function(t, b, c, d){ //彈球減振（彈球漸出）
return c - Tween['bounceOut'](d-t, 0, c, d) b;
},
bounceOut: function(t, b, c, d){
if ((t/=d) lt; (1/2.75)) {
return c*(7.5625*t*t) b;
} else if (t lt; (2/2.75)) {
return c*(7.5625*(t-=(1.5/2.75))*t 0.75) b;
} else if (t lt; (2.5/2.75)) {
return c*(7.5625*(t-=(2.25/2.75))*t 0.9375) b;
}
return c*(7.5625*(t-=(2.625/2.75))*t 0.984375) b;
},
bounceBoth: function(t, b, c, d){
if (t lt; d/2) {
return Tween['bounceIn'](t*2, 0, c, d) * 0.5 b;
}
return Tween['bounceOut'](t*2-d, 0, c, d) * 0.5 c*0.5 b;
}
};
}
win.animateTime = move;
})(window);
//速度版本
(function(win){
functionmove(obj,json,callback){
clearInterval(obj.timer);
obj.timer = setInterval(function(){
var mark = true;
for(var attr in json){
var cur = null;
if(attr == "opacity"){
cur = getStyle(obj,attr)*100;
}else{
//如果沒寫 默認填充成0
cur = parseInt(getStyle(obj,attr))||0;
}
var target = json[attr];
var speed = (target - cur)*0.2;
speed = speedgt;0?Math.ceil(speed):Math.floor(speed);
if(cur != target){
if(attr == "opacity"){
//IE opacity兼容問題
obj.style.filter = "alpha(opacity=" (cur speed) ")";
obj.style[attr] = (cur speed)/100;
}else{
obj.style[attr] = cur speed "px";
}
mark = false;
};
}
if(mark){
clearInterval(obj.timer);
callback callback.call(obj);
}
},1000/30);
}
win.animateSpeed = move;
})(window);
functiongetStyle(obj,attr){
return getComputedStyle(obj)[attr]?getComputedStyle(obj)[attr]:obj.currentStyle[attr];
}
functiongetId(id){
return document.getElementById(id);
}
- 更多使用記錄，詳情 https://github.com/poetries/Animate
Tags: JavaScript
文章來源：http://blog.poetries.top/2017/01/12/js-animate/