generate animations randomly on button click in vue.js-CodePudding

I have three lottie player json animation files - congratulations1.json, congratulations2.json and congratulations3.json The animations are as follows:

congratulations1:

<lottie-player
          v-if="showPlayer1"
          class="justify-content-center"
          src="../../../congratulations.json"
          background="transparent"
          speed="1"
          style="width: 300px; height: 300px"
          loop
          controls
          autoplay
        ></lottie-player
        >;

congratulations2:

<lottie-player
          v-if="showPlayer2"
          class="justify-content-center"
          src="../../../congratulations2.json"
          background="transparent"
          speed="1"
          style="width: 300px; height: 300px"
          loop
          controls
          autoplay
        ></lottie-player
        >;

congratulations3:

<lottie-player
          v-if="showPlayer3"
          class="justify-content-center"
          src="../../../congratulations3.json"
          background="transparent"
          speed="1"
          style="width: 300px; height: 300px"
          loop
          controls
          autoplay
        ></lottie-player
        >;

Note: The path of the json files are mentioned in src in those lottie-player tag.

I want to display them randomly when a single button is clicked.

Things I have done:

I have taken three variables for each of those three animations. Variables are - showPlayer1, showPlayer2 and showPlayer3. I have kept them inside an array named showPlayer and set their values as false. I dont know if my procedure is correct or not. What to do next I have no idea.

My array:

<script>
export default {
  data() {
    return {
      showPlayer: [
        (showPlayer1 = false),
        (showPlayer2 = false),
        (showPlayer3 = false),
      ],
    };
  },

I have done upto this. What to include inside the button tag to display those three animations randomly from an array, I have no idea. Please help.

Updated code:

<div class="justify-content-center anim">
        <lottie-player
          v-if="showPlayer === 1"
          class="justify-content-center"
          src="../../../congratulations.json"
          background="transparent"
          speed="1"
          style="width: 300px; height: 300px"
          loop
          controls
          autoplay
        ></lottie-player
        >;
      </div>
      <div >
        <lottie-player
          v-if="showPlayer === 2"
          
          src="../../../congratulations_2.json"
          background="transparent"
          speed="1"
          style="width: 300px; height: 300px"
          loop
          controls
          autoplay
        ></lottie-player
        >;
      </div>
      <div >
        <lottie-player
          v-if="showPlayer === 3"
          
          src="../../../congratulations_3.json"
          background="transparent"
          speed="1"
          style="width: 300px; height: 300px"
          loop
          controls
          autoplay
        ></lottie-player
        >;
      </div>

CodePudding user response：

As I've shown below there are serveral other ways to achieve this. But if you want to do it like you suggest I would not use showPlayer as an array of boolean but rather as a number.

<template>
<div v-if="showPlayer === 1"> DIV 1 </div>
<div v-if="showPlayer === 2"> DIV 3 </div>
<div v-if="showPlayer === 3"> DIV 3 </div>
<button @click="onRandomButtonPress">Random!</button>
</template>
<script>
export default {
  data() {
    return {
      showPlayer: 1
    };
  },
methods: {
onRandomButtonPress() {
  this.showPlayer = Math.floor(Math.random()*3   1);
},
}
</script>

There are multiple ways to deal with this. If you only want to use one component and toggle the source you can do something like this: First, set the src of your components to a variable:

<lottie-player
          class="justify-content-center"
          :src="animationSrc"
          background="transparent"
          speed="1"
          style="width: 300px; height: 300px"
          loop
          controls
          autoplay
        ></lottie-player
        >;

Set an array with the strings you have in your data() like this:

  animations: [
    '../../../congratulations.json',
    '../../../congratulations2.json',
    '../../../congratulations3.json',
  ],
  animationSrc: ''

Then set a methon for the randomButton like this:

onRandomButtonPress() {
  this.animationSrc = this.animations[Math.floor(Math.random()*this.animations.length)];
},

I have hacked a codesandbox together real quick: https://codesandbox.io/s/elastic-dijkstra-o7ety?file=/src/components/HelloWorld.vue

You can also use the :is attribute in vue to load a dynamic component and set in code which component you want to be loaded. https://vuejs.org/v2/guide/components-dynamic-async.html