https://jsfiddle.net/7Lypucvo.
can I use < transition > of vue to realize the horizontal bar translation transition at the bottom?
I looked at the official documents and it seems that I can only add in and leave the transition?
https://jsfiddle.net/7Lypucvo.
can I use < transition > of vue to realize the horizontal bar translation transition at the bottom?
I looked at the official documents and it seems that I can only add in and leave the transition?
Yes.
first analyze the animation
Animation has two directions, left to right. This can monitor the selected index, to be obtained by comparing the new and old values.
if implemented with the transition component, the transition component triggers if the dom is visible and hidden. Then we need four border elements to switch between explicit and implicit triggers transition.
DEMO
We can achieve
without using the transition component. We can display the transition effect by zooming horizontally with the pseudo elements of each item. Use transform-origin to control the direction of the transition
Control scaling
.item {
padding: 20px;
background-color: -sharpfff;
position: relative;
&:after {
content: "";
position: absolute;
bottom: 0;
left: 0;
right: 0;
height: 2px;
background-color: -sharp00f;
transform: scaleX(0);
transition: transform 0.3s;
}
&.active {
&:after {
transform: scaleX(1);
}
}
} .isLeft {
.item {
&:after {
transform-origin: 0 100%;
}
&.active {
&:after {
transform-origin: 100% 0;
}
}
}
}
.isRight {
.item {
&:after {
transform-origin: 100% 0;
}
&.active {
&:after {
transform-origin: 0 100%;
}
}
}
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