Beispielcode für den horizontalen Schiebebildschirm des Mobilterminals und den Spezialeffekt „Gummiband'.

//动画形式公式
var Tween = {
linear: function (t, b, c, d){
return c*t/d + b;
},
EASYIN: function(t, b, c, d){
return c*(t/=d)*t + b;
},
EASYOUT: function(t, b, c, d ){
return -c *(t/=d)*(t-2) + b;
},
equalBoth: function(t, b, c, d){
if ( (t/=d/2) < 1) {
return c/2*t*t + b;
}
return -c/2 * ((--t)*(t- 2) - 1) + b;
},
equalInStrong: function(t, b, c, d){
return c*(t/=d)*t*t*t + b;
},
equalOutStrong: function(t, b, c, d){
return -c * ((t=t/d-1)*t*t*t - 1) + b;
},
lockerBothStrong: function(t, b, c, d){
if ((t/=d/2) < 1) {
return c/2*t*t *t*t + b;
}
return -c/2 * ((t-=2)*t*t*t - 2) + b;
},
elasticIn: Funktion (t, b, c, d, a, p){
if (t === 0) {
return b;
}
if ( (t /= d) == 1 ) {
return b+c;
}
if (!p) {
p=d*0.3;
}
if (!a || a < 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){
if (t === 0) {
return b;
}
if ( (t /= d ) == 1 ) {
return b+c;
}
if (!p) {
p=d*0.3;
}
if (!a || a < 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 < Math.abs(c) ) {
a = c;
var s = p/4;
}
else {
var s = p/(2*Math.PI) * Math.asin (c/a);
}
if (t < 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){
if (typeof s = = 'undefiniert') {
  s = 1.70158;
}
return c*(t/=d)*t*((s+1)*t - s) + b;
} ,
backOut: function(t, b, c, d, s){
if (typeof s == 'undefiniert') {
s = 2.70158;  //回缩的距离
}
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 ) < 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){
return c - Tween['bounceOut'](d-t, 0, c, d) + b;
},      
bounceOut: function(t, b, c, d){
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 + 0.75) + b;
} else if (t < (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 < 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;
}
}
// 获取或者设置样式
function css(el,attr,val){
if(arguments.length == 2){
if(el.currentStyle){
val = el.currentStyle[attr];
} else {
val = getComputedStyle(el) [attr];
}
return parseFloat(val);
} else {
if(attr == "opacity"){
el.style.opacity = val;
el.style.filter = "alpha(opacity= "+val*100+")";
} else if(attr == "zIndex"){
el.style[attr] = Math.round( val);
}else {
el.style[attr] = val + "px";
}
}
}
//执行动画
function startMove( init){
clearInterval(init.el.timer);
var t = 0;
var b = {};
var c = {};
var d = init.time/20;
for( var s in init.target){
b[s] = css(init.el,s);
c[s] = init.target[s] - b[s];
}
init.el.timer = setInterval(function(){
t++;
if(t > d){
clearInterval(init.el.timer);
init.callBack&&init.callBack();
} else {
for(var s in init.target){
var val = Tween[init.type](t,b[s],c[s],d);
css(init.el,s,val);
}
}
},20);
}

Das obige ist der detaillierte Inhalt vonBeispielcode für den horizontalen Schiebebildschirm des Mobilterminals und den Spezialeffekt „Gummiband'.. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!