我得到这个背景图片滑块的东西在chrome和safari工作,但它没有做任何事情在firefox.任何帮助？
$(function(){
var image= ".main-content";
var button_left= "#button_left";
var button_right= "#button_right";
var animation= "eaSEOutQuint";
var time= 800;
var jump= 800;
var action= 0;
$(button_left).click(function(){
right();
});
$(button_right).click(function(){
left();
});
$(document).keydown(function(event){
if(event.keyCode == '37'){
right();
}
});
$(document).keydown(function(event){
if(event.keyCode == '39'){
left();
}
});
function left(){
if(action == 0){
action= 1;
$(image).animate({backgroundPositionX: '-='+jump+'px'},{duration: time,easing: animation});
setTimeout(anim,time);
}
}
function right(){
if(action == 0){
action= 1;
$(image).animate({backgroundPositionX: '+='+jump+'px'},time);
}
}
function anim(){
action= 0;
}
});
我也试过这个,但也没有做
$(image).animate({backgroundPosition: '500px 0px'},800);
解决方法
这里试试这个背景动画,
(function($) {
if(!document.defaultView || !document.defaultView.getComputedStyle){
var oldCurCSS = jQuery.curCSS;
jQuery.curCSS = function(elem,name,force){
if(name === 'background-position'){
name = 'backgroundPosition';
}
if(name !== 'backgroundPosition' || !elem.currentStyle || elem.currentStyle[ name ]){
return oldCurCSS.apply(this,arguments);
}
var style = elem.style;
if ( !force && style && style[ name ] ){
return style[ name ];
}
return oldCurCSS(elem,'backgroundPositionX',force) +' '+ oldCurCSS(elem,'backgroundPositionY',force);
};
}
var oldAnim = $.fn.animate;
$.fn.animate = function(prop){
if('background-position' in prop){
prop.backgroundPosition = prop['background-position'];
delete prop['background-position'];
}
if('backgroundPosition' in prop){
prop.backgroundPosition = '('+ prop.backgroundPosition;
}
return oldAnim.apply(this,arguments);
};
function toArray(strg){
strg = strg.replace(/left|top/g,'0px');
strg = strg.replace(/right|bottom/g,'100%');
strg = strg.replace(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");
var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);
return [parseFloat(res[1],10),res[2],parseFloat(res[3],res[4]];
}
$.fx.step. backgroundPosition = function(fx) {
if (!fx.bgPosReady) {
var start = $.curCSS(fx.elem,'backgroundPosition');
if(!start){//FF2 no inline-style fallback
start = '0px 0px';
}
start = toArray(start);
fx.start = [start[0],start[2]];
var end = toArray(fx.options.curAnim.backgroundPosition);
fx.end = [end[0],end[2]];
fx.unit = [end[1],end[3]];
fx.bgPosReady = true;
}
//return;
var nowPosX = [];
nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];
fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1];
};
})(jQuery);
像这样调用它,
$(this).animate({backgroundPosition: '0 0'})
