我正在使用JavaScript切换通知,如下所示。
如何在display: block
和display: none;
我不想添加像jQuery这样的外部库,因为我只会单独使用toggle
效果。
var btn = document.querySelector('button');
btn.addEventListener('click', function(){
var hint = document.getElementById('hint');
if(hint.style.display == 'none'){
hint.style.display = 'block';
}
else{
hint.style.display = 'none';
}
});
div#hint{
background: gold;
color: orangered;
padding: .5em;
font-weight: bold;
}
<div id='hint'>
<p>This is some hint on how to be safe in this community </p>
<p>This is another hint on how to be safe in this community </p>
</div>
<button> show hint </button>
我知道我可以使用jQuery来实现这一点,如下所示。
$(document).ready(function(){
$('button').click(function(){
$('#hint').toggle('slow');
});
});
div#hint{
background: gold;
color: orangered;
padding: .5em;
font-weight: bold;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id='hint'>
<p>This is some hint on how to be safe in this community </p>
<p>This is another hint on how to be safe in this community </p>
</div>
<button> show hint </button>
在#hint
进行切换时,我可以逐渐上下移动按钮,就像上面的jQuery示例一样吗?我不希望按钮跳从一个位置到另一个位置。
答案 0 :(得分:11)
从技术上讲,@ vothaison希望使用setInterval
而不是setTimeout
,但我认为没有必要。这只是更多的工作。
var hint = document.getElementById('hint');
var btn = document.getElementById('btn_show');
btn.addEventListener('click', function(){
var ctr = 1;
hint.className = hint.className !== 'show' ? 'show' : 'hide';
if (hint.className === 'show') {
hint.style.display = 'block';
window.setTimeout(function(){
hint.style.opacity = 1;
hint.style.transform = 'scale(1)';
},0);
}
if (hint.className === 'hide') {
hint.style.opacity = 0;
hint.style.transform = 'scale(0)';
window.setTimeout(function(){
hint.style.display = 'none';
},700); // timed to match animation-duration
}
});
#hint {
background: yellow;
color: red;
padding: 16px;
margin-bottom: 10px;
opacity: 0;
transform: scale(0);
transition: .6s ease opacity,.6s ease transform;
}
<div id="hint" style="display: none;">
<p>This is some hint on how to be safe in this community </p>
<p>This is another hint on how to be safe in this community </p>
</div>
<button id="btn_show"> Show hint </button>
var hint = document.getElementById('hint');
var btn = document.getElementById('btn_show');
btn.addEventListener('click', function(){
hint.className = hint.className !== 'show' ? 'show' : 'hide';
if (hint.className === 'show') {
setTimeout(function(){
hint.style.display = 'block';
},0); // timed to occur immediately
}
if (hint.className === 'hide') {
setTimeout(function(){
hint.style.display = 'none';
},700); // timed to match animation-duration
}
});
@-webkit-keyframes in {
0% { -webkit-transform: scale(0) rotate(12deg); opacity: 0; visibility: hidden; }
100% { -webkit-transform: scale(1) rotate(0); opacity: 1; visibility: visible; }
}
@keyframes in {
0% { transform: scale(0) rotate(12deg); opacity: 0; visibility: hidden; }
100% { transform: scale(1) rotate(0); opacity: 1; visibility: visible; }
}
@-webkit-keyframes out {
0% { -webkit-transform: scale(1) rotate(0); opacity: 1; visibility: visible; }
100% { -webkit-transform: scale(0) rotate(-12deg); opacity: 0; visibility: hidden; }
}
@keyframes out {
0% { transform: scale(1) rotate(0); opacity: 1; visibility: visible; }
100% { transform: scale(0) rotate(-12deg); opacity: 0; visibility: hidden; }
}
#hint {
background: yellow;
color: red;
padding: 16px;
margin-bottom: 10px;
}
#hint.show {
-webkit-animation: in 700ms ease both;
animation: in 700ms ease both;
}
#hint.hide {
-webkit-animation: out 700ms ease both;
animation: out 700ms ease both;
}
<div id="hint" style="display: none;">
<p>This is some hint on how to be safe in this community </p>
<p>This is another hint on how to be safe in this community </p>
</div>
<button id="btn_show"> Show hint </button>
使用vanilla JavaScript有很多种方法可以做这种事情,所以这里有一种快速草图:
// you may need to polyfill requestAnimationFrame
var hint = document.getElementById('hint');
var btn = document.getElementById('btn_show');
btn.addEventListener('click', function(){
var ctr = 0;
hint.className = hint.className !== 'show' ? 'show' : 'hide';
if (hint.className === 'show') {
window.setTimeout(function(){
hint.style.display = 'block';
fadein();
},0); // do this asap
}
if (hint.className === 'hide') {
fadeout();
window.setTimeout(function(){
hint.style.display = 'none';
},700); // time this to fit the animation
}
function fadein(){
hint.style.opacity = ctr !== 10 ? '0.'+ctr : 1;
hint.style.transform = ctr !== 10 ? 'scale('+('0.'+ctr)+')' : 'scale(1)';
ctr++;
if (ctr < 11)
requestAnimationFrame(fadein);
else
ctr = 0;
}
function fadeout(){
hint.style.opacity = 1 - ('0.'+ctr);
hint.style.transform = 'scale('+(1 - ('0.'+ctr))+')';
ctr++;
if (ctr < 10)
requestAnimationFrame(fadeout);
else
ctr = 0;
}
});
#hint {
background: yellow;
color: red;
padding: 16px;
margin-bottom: 10px;
opacity: 0;
}
<div id="hint" style="display: none;">
<p>This is some hint on how to be safe in this community </p>
<p>This is another hint on how to be safe in this community </p>
</div>
<button id="btn_show"> Show hint </button>
说出你想要的关于GreenSock,Velocity.js,jQuery等的东西 - 它们都会忽视这个显示和隐藏事物的过程。为什么不借用show并隐藏jQuery源代码中的函数呢?
答案 1 :(得分:6)
请参阅下面的示例:
var btn = document.querySelector('button');
var hint = document.getElementById('hint');
var height = hint.clientHeight;
var width = hint.clientWidth;
console.log(width + 'x' + height);
// initialize them (within hint.style)
hint.style.height = height + 'px';
hint.style.width = width + 'px';
btn.addEventListener('click', function(){
if(hint.style.visibility == 'hidden'){
hint.style.visibility = 'visible';
//hint.style.opacity = '1';
hint.style.height = height + 'px';
hint.style.width = width + 'px';
hint.style.padding = '.5em';
}
else{
hint.style.visibility = 'hidden';
//hint.style.opacity = '0';
hint.style.height = '0';
hint.style.width = '0';
hint.style.padding = '0';
}
});
div#hint{
background: gold;
color: orangered;
padding: .5em;
box-sizing: border-box;
overflow: hidden;
font-weight: bold;
transition: height 1s, width 1s, padding 1s, visibility 1s, opacity 0.5s ease-out;
}
<div id='hint'>
<p>This is some hint on how to be safe in this community </p>
<p>This is another hint on how to be safe in this community </p>
</div>
<button> show hint </button>
答案 2 :(得分:3)
不使用 css3过渡,您可以使用js setInterval来更改div的某些css属性,例如:
将不透明度从0更改为1
将高度从0更改为全高
将宽度从0更改为全宽
最初,您应该display: none; opacity: 0; height: 0; width: 0'
然后,在使用setInterval更改其他属性之前,必须将display: none
更改为display: block;
。
(我想你知道如何隐藏div)
你也可以使用setTimeout(),使用递归技巧。
答案 3 :(得分:2)
var btn = document.querySelector('button');
btn.addEventListener('click', function(){
var hint = document.getElementById('hint');
if(hint.style.visibility == 'hidden'){
hint.style.visibility = 'visible';
hint.style.opacity = '1';
}
else{
hint.style.visibility = 'hidden';
hint.style.opacity = '0';
}
});
div#hint{
background: gold;
color: orangered;
padding: .5em;
font-weight: bold;
transition: visibility 1s, opacity 0.5s linear;
}
<div id='hint'>
<p>This is some hint on how to be safe in this community </p>
<p>This is another hint on how to be safe in this community </p>
</div>
<button> show hint </button>
我认为在显示屏上使用可见性是更好的选择
答案 4 :(得分:1)
尝试这样的事情:
var btn = document.querySelector('button');
btn.addEventListener('click', function(){
var hint = document.getElementById('hint');
hint.classList.toggle("hide");
});
&#13;
.hint{
background: gold;
color: orangered;
padding: .5em;
font-weight: bold;
visibility: visible;
opacity: 1;
max-height: 500px;
transition: visibility 0s, opacity 0.3s, max-height 0.6s linear;
}
.hide {
visibility: hidden;
opacity: 0;
max-height: 0px;
transition: max-height 0.3s, opacity 0.3s, visibility 0.3s linear;
}
&#13;
<div id='hint' class="hint">
<p>This is some hint on how to be safe in this community </p>
<p>This is another hint on how to be safe in this community </p>
</div>
<button> show hint </button>
&#13;
答案 5 :(得分:1)
您好我不使用显示:阻止来显示:无,而是更改不透明度,高度和填充 请查看这个:
var btn = document.querySelector('button');
btn.addEventListener('click', function() {
var hint = document.getElementById('hint');
if (hint.classList.contains('h-hide')) {
hint.classList.remove('h-hide');
} else {
hint.classList.add('h-hide');
}
});
&#13;
div#hint {
display: block;
background: gold;
color: orangered;
padding: .5em;
font-weight: bold;
transition: .5s all linear;
opacity: 1;
overflow: hidden;
height: 100px;
}
#hint.h-hide {
padding: 0;
opacity: .25;
height: 0;
}
&#13;
<div id='hint'>
<p>This is some hint on how to be safe in this community</p>
<p>This is another hint on how to be safe in this community</p>
</div>
<button>show hint</button>
&#13;
这种方法的缺点是我们必须保持div #hint高度,并在需要时使用javascript更改它。
答案 6 :(得分:-1)
我也试过这样做 请看看它是否可以帮到你
var btn = document.querySelector('button');
var hint = document.getElementById('hint');
hint.style.opacity = 1;
hint.style.transition = "opacity 1s";
btn.addEventListener('click', function(){
if(hint.style.opacity == 0 || hint.style.opacity==''){
hint.style.opacity = 1;
}
else{
hint.style.opacity = 0;
}
});