Cwangcisa isiphumo sokunqakraza i icon rocket jquery skrola emva phezulu JS ikhowudi

Yabelana ngendlela yokwenzaWordPressUmxholo usebenzisa "isiphumo sokucofa i-rocket ukubuyela phezulu".

• Ukuba uyi-WordPress guru, uyazi indlela yokuyifaka kwi-WordPress theme.
• Eli nqaku likwafanelekileukwakha iwebhusayithiumqali.

I-Rocket Ascent Buyela kuMfanekiso oPhezulu

Khuphela lo mfanekiso ungentla kwangaphambili, kuyacetyiswa ukuba uwubeke kwifolda yemifanekiso phantsi komxholo wolawulo.

Inyathelo 1: Layisha iifayile zethala leencwadi zejQuery

• Layisha ifayile yelayibrari ye-jQuery Ukuba umxholo we-WordPress sele ulayishiwe, unokungahoyi eli nyathelo;

I-WordPress yazisa ilayibrari ye-jQuery yomntu wesithathu, nceda ujonge esi sifundo ▼

Ukhuphela njani ithala leencwadi lejQuery? I-WordPress yazisa ithala leencwadi le-3rd le-jQuery

Iinqanawa ze-WordPress ezinelayibrari yejQuery, kodwa inelayibrari yayo eguqulwe kancinane yejQuery. Ukuba ufunda ukuyisebenzisa xa usakha iwebhusayithi, usenokungakwazi ukufikelela kwiziphumo ezithile zejQuery. Ithala leencwadi le-jQuery lidla ngokuba yi-50-90kb enkulu. Ukuba umamkeli wakho akaqhubi kakuhle, iwebhusayithi yakho iya kulayisha...

Inyathelo 2: Yongeza ikhowudi kwifayile ye-footer.php

Yongeza le khowudi ilandelayo kwindawo efanelekileyo kumxholo wakho wefooter.php ▼

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

Inyathelo 3: Yongeza ikhowudi kwifayile yeCSS

Yongeza le khowudi ilandelayo ye-CSS kwifayile yakho ye-style.css ▼

.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;}

Inyathelo 4: Yongeza ukubuyisela kwikhowudi ye-JS ephezulu

Kwikhowudi elandelayo yejs, ungenza enye ifayile yejs;

Okanye udibanise kwifayile ye-js efanelekileyo yomxholo okhoyo (ecetyiswayo);

Okanye ungayisonga kwi-footer.php Phakathi ▼

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();