假设您在一个页面上有100个按钮,每个按钮应将不同的动画应用于一个特定的HTML元素。有没有一种方法可以使用CSS轻松为另一个元素定义动画,如果没有,则可以通过JavaScript进行设置?
例如,
#group1 {
display: flex;
flex-direction: row;
}
#group2 {
width: 100px;
height: 100px;
background-color: gray;
animation: animation1 1s ease-out;
}
@keyframes animation1 {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
@keyframes animation2 {
0% {
opacity: 0;
background-color: red;
}
100% {
opacity: 1;
background-color: blue;
}
}
@keyframes animation3 {
0% {
opacity: 0;
background-color: purple;
}
100% {
opacity: 1;
background-color: orange;
}
}
<div id="group1">
<button>Animation 1</button>
<button>Animation 2</button>
<button>Animation 3</button>
</div>
<div id="group2">
</div>
当按下按钮时,我希望元素使用与其相关的过渡。
您可以为CSS中的另一个元素定义过渡吗?
#group2 {
width:100px;
height:100px;
background-color: gray;
}
#button2 {
animation-target: #group2 animation2 1s ease-out;
}
或
@keyframes #Group2 animation3 {
0% {
opacity: 0;
background-color: purple;
}
100% {
opacity: 1;
background-color: orange;
}
如果CSS无法处理此问题,通过JavaScript进行设置是否看起来不错:
function changeAnimation(event) {
var target = event.currentTarget;
var animation = getComputedStyle(target).getPropertyValue("--animation");
var group2 = document.getElementById("group2");
group2.style.setProperty("animation", animation);
console.log("animation:" + animation);
}
function hide() {
var group2 = document.getElementById("group2");
group2.style.setProperty("display", "none");
}
function show() {
var group2 = document.getElementById("group2");
group2.style.setProperty("display", "block");
}
#group1 {
display: flex;
flex-direction: row;
}
#group2 {
width: 100px;
height: 100px;
background-color: gray;
animation: animation1 1s ease-out;
}
#button1 {
--animation: animation1 1s ease-out;
}
#button2 {
--animation: animation2 1s ease-out;
}
#button3 {
--animation: animation3 1s ease-out;
}
@keyframes animation1 {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
@keyframes animation2 {
0% {
opacity: 0;
background-color: red;
}
100% {
opacity: 1;
background-color: blue;
}
}
@keyframes animation3 {
0% {
opacity: 0;
background-color: purple;
}
100% {
opacity: 1;
background-color: orange;
}
}
<div id="group1">
<button id="button1" onclick="changeAnimation(event)">Animation 1</button>
<button id="button2" onclick="changeAnimation(event)">Animation 2</button>
<button id="button3" onclick="changeAnimation(event)">Animation 3</button>
<button id="hide" onclick="hide()">Hide</button>
<button id="hide" onclick="show()">Show</button>
</div>
<div id="group2">
</div>
如果可以自由编辑HTML代码,请考虑结合使用~
选择器的标签/输入技巧
#group1 {
display: flex;
flex-direction: row;
}
#group2 {
width: 100px;
height: 100px;
background-color: gray;
animation:none 1s ease-out
}
#anim1:checked ~ #group2 {
animation-name: animation1;
}
#anim2:checked ~ #group2 {
animation-name: animation2;
}
#anim3:checked ~ #group2 {
animation-name: animation3;
}
label {
-webkit-appearance:button;
-moz-appearance:button;
padding:5px;
}
input{
display:none;
}
@keyframes animation1 {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
@keyframes animation2 {
0% {
opacity: 0;
background-color: red;
}
100% {
opacity: 1;
background-color: blue;
}
}
@keyframes animation3 {
0% {
opacity: 0;
background-color: purple;
}
100% {
opacity: 1;
background-color: orange;
}
}
<div id="group1">
<label for="anim1" >Animation 1</label>
<label for="anim2" >Animation 2</label>
<label for="anim3" >Animation 3</label>
</div>
<input id="anim1" type="radio" name="anim">
<input id="anim2" type="radio" name="anim">
<input id="anim3" type="radio" name="anim">
<div id="group2">
</div>
您可以使用CSS varibales设置animation
属性并使用setProperty()
var group2 = document.getElementById('group2');
function changeAnimation(e) {
group2.style.setProperty('--anim', `animation${e.id}`);
}
:root {
--anim: animation1;
}
#group1 {
display: flex;
flex-direction: row;
}
#group2 {
width: 100px;
height: 100px;
background-color: gray;
animation: var(--anim) 1s ease-out;
}
@keyframes animation1 {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
@keyframes animation2 {
0% {
opacity: 0;
background-color: red;
}
100% {
opacity: 1;
background-color: blue;
}
}
@keyframes animation3 {
0% {
opacity: 0;
background-color: purple;
}
100% {
opacity: 1;
background-color: orange;
}
}
<div id="group1">
<button id="1" onclick="changeAnimation(this)">Animation 1</button>
<button id="2" onclick="changeAnimation(this)">Animation 2</button>
<button id="3" onclick="changeAnimation(this)">Animation 3</button>
</div>
<div id="group2">
</div>