Tọọ mmetụta nke ịpị akara ngosi rọketi jquery pịgharịa gaa na koodu JS dị n'elu

kesaa otuWordPressMee mmetụta nke "ịpị rọketi ka ịlaghachi n'elu" na isiokwu.

• Ọ bụrụ na ị bụ whiz WordPress, ị maara ka esi ebufe ya na isiokwu WordPress.
• Akụkọ a dabarakwawuo webụsaịtịonye mbido.

Rọket mgbago azụ na foto kacha elu

Budata ihe oyiyi dị n'elu tupu oge eruo, a na-atụ aro ka itinye ya na nchekwa ihe oyiyi n'okpuru ndekọ isiokwu.

Kwụpụ 1: Budata faịlụ ọba akwụkwọ jQuery

• Budata faịlụ ọba akwụkwọ jQuery, ọ bụrụ na ebugolarị isiokwu WordPress, ị nwere ike ileghara usoro a anya;

WordPress ewebata ọba akwụkwọ jQuery nke atọ, biko lelee nkuzi a▼

Otu esi ebudata ọba akwụkwọ jQuery? WordPress ewebata ọba akwụkwọ jQuery nke atọ

WordPress na-abịa na ọba akwụkwọ jQuery, mana ọbá akwụkwọ jQuery nke ya ka agbanwere ntakịrị.Ọ bụrụ na ị mụta iji ya, ị gaghị enwe ike nweta mmetụta jQuery.Ọbá akwụkwọ jQuery na-abụkarị 50-90kb buru ibu, ọ bụrụ na onye ọbịa gị adịghị eme nke ọma, mgbe ahụ weebụsaịtị gị na-ebu ibu.

Kwụpụ 2: Tinye koodu na faịlụ footer.php

Tinye koodu a na ebe kwekọrọ na isiokwu footer.php ▼

<div class="one"></div>
<div id="backtotop" style="display:none;"></div>

Kwụpụ 3: Tinye koodu na faịlụ CSS

Tinye koodu CSS a na faịlụ style.css isiokwu ▼

.one {width:100%;height:3000px;}
#backtotop {background:url(images/rocket_up.png) 0px 0px no-repeat;position:fixed;bottom:0px;right:10px;width:149px;height:260px;cursor: pointer;z-index:1000;}

Kwụpụ 4: Tinye azụ n'elu koodu JS

Maka koodu js na-esonụ, ị nwere ike ịmepụta faịlụ js ọzọ;

ma ọ bụ jikọta ya na faịlụ js dị mkpa nke isiokwu dị adị (atụ aro);

ma ọ bụ ị nwere ike kechie ya na footer.php Ọkara ▼

var scrollTT = {
tTSpeed : 800, // 滚动到顶部的时间
startFlyTime : 1000, // 火箭起飞的时间
restartTime : 1200, // 重置火箭位置的时间
flySpeed : 50, // 火箭向上飞行的速度
obj : $("#backtotop"), // 回到顶部的dom
flyTemp : '', // 一个setInterval的临时变量
/**
* 
* 初始化 scrollTT 函数
* 主要是像对象添加事件
*
*/
init : function( obj, tTSpeed, startFlyTime, restartTime, flySpeed ) {
scrollTT.tTSpeed = scrollTT.tTSpeed || tTSpeed;
scrollTT.startFlyTIme = scrollTT.startFlyTIme || startFlyTime;
scrollTT.restartTime = scrollTT.restartTime || restartTime;
scrollTT.flySpeed = scrollTT.flySpeed || flySpeed;
scrollTT.obj = scrollTT.obj || obj;

// 向window 绑定scroll 事件
scrollTT.onScroll();


scrollTT.obj.click(function(){
// 关闭默认的scroll事件
$(window).off("scroll");
// 页面向上滚动
$('html,body').animate({scrollTop: '0px'}, this.tTSpeed);
// 火箭向上飞行
scrollTT.objFly();
// 火箭的喷气效果
scrollTT.blow();

});

// 鼠标在火箭上的效果
scrollTT.obj.mouseenter(function() {
$(this).css('background-position', '-149px 0px');
});
// 鼠标移开的效果
scrollTT.obj.mouseleave(function() {
$(this).css('background-position', '0px 0px');
});

}, 
/*
* 向window 绑定scroll 事件
*
*/
onScroll : function() {
$(window).on('scroll', function() {
if ($(window).scrollTop()>500){
scrollTT.obj.fadeIn(500);
}else{
scrollTT.obj.fadeOut(1500);
}
});
},
/**
* dom对象向上飞行
*
*/
objFly : function() {
var fly = setTimeout(function(){
scrollTT.obj.animate({top: '-500px'} ,'normal', 'swing');
scrollTT.resetFly();
clearTimeout(fly);
clearInterval(scrollTT.flyTemp);
}, scrollTT.startFlyTime);
},
/**
* dom 对象飞行完毕回到原来的位置
*
*/
resetFly : function() {
var fly2 = setTimeout(function() {
scrollTT.obj.hide();
scrollTT.obj.css("top", 'auto');
scrollTT.obj.css("background-position", '0px 0px');
scrollTT.onScroll();
clearTimeout(fly2);
},scrollTT.restartTime);
},
/**
* dom 对象的喷气效果
*
*/
blow : function() {
var topPosiiton = -149;
scrollTT.flyTemp = setInterval(function() {
topPosiiton += -149;
if(topPosiiton < -743) {
topPosiiton = -149
}
scrollTT.obj.css('background-position', topPosiiton + 'px 0px');
}, this.flySpeed);
}
};

scrollTT.init();