送你一颗小星星~

效果

环境

• 微信小程序 typescript + scss

代码

index.ts

Component({ 
  data: {
    c: ""
  }, 
  methods: {
    checked() {
      this.setData({ c: this.data.c == "fill" ? "none" : "fill" })
    }
  }
})

index.wxml

<view class="star {{c}}" bindtap="checked">
  <view class="iconfont icon-star"></view>
  <view class="iconfont icon-star-fill"></view>
  <view class="bling"></view>
  <view class="bling"></view>
  <view class="bling"></view>
</view>

index.scss

@font-face {
  font-family: "iconfont";
  /* Project id 3330476 */
  src: url('//at.alicdn.com/t/font_3330476_y264o31cfs8.woff2?t=1649984479172') format('woff2'),
    url('//at.alicdn.com/t/font_3330476_y264o31cfs8.woff?t=1649984479172') format('woff'),
    url('//at.alicdn.com/t/font_3330476_y264o31cfs8.ttf?t=1649984479172') format('truetype');
}

.iconfont {
  font-family: "iconfont" !important;
  font-size: 16px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.icon-star:before {
  content: "\e7df";
}

.icon-star-fill:before {
  content: "\e86a";
}

.star {
  position: relative;
  --width: 20rpx;
  --height: 4rpx;
  --font-size: 50rpx;
  --color: #bbbbbb;
  --fill-color: goldenrod;
  --left: 200rpx;
  --top: -100rpx;

  .icon-star {
    color: var(--color);
    font-size: var(--font-size);
  }

  .icon-star-fill {
    position: absolute;
    font-size: var(--font-size);
    top: 0;
    left: 0;
    color: var(--fill-color);
    opacity: 0;
  }

  .bling {
    position: absolute;
    width: var(--width);
    height: var(--height);
    border-radius: calc(var(--width) / 2);
    background-color: var(--fill-color);
    top: calc(50% - calc(var(--height) / 2));
    left: calc(50% - calc(var(--width) / 2));
    box-shadow: var(--font-size) calc(var(--height) / -.5) 0px var(--fill-color), calc(-1 * var(--font-size)) calc(var(--height) / -.5) 0px var(--fill-color);
    opacity: 0;
  }

  &.fill {
    .icon-star-fill {
      animation-name: star-fill-add;
      animation-duration: 1s;
      transition-timing-function: ease-in-out;
      opacity: 1;
    }

    .icon-star {
      animation-name: star-add;
      animation-delay: 1s;
      animation-duration: 1s;
      transition-timing-function: linear;
    }

    .bling {
      animation-delay: 1s;
      animation-duration: 1s;
      transition-timing-function: ease-in-out;
      opacity: 0;

      &:nth-of-type(3) {
        animation-name: star-bling-1;
      }

      &:nth-of-type(4) {
        animation-name: star-bling-2;
      }

      &:nth-of-type(5) {
        animation-name: star-bling-3;
        --width: 26rpx;
      }
    }

  }

  &.none {
    .icon-star-fill {
      animation-name: star-fill-subtract;
      animation-duration: 1s;
      transition-timing-function: linear;
    }

    .icon-star {
      animation-name: star-subtract;
      animation-duration: 1s;
      transition-timing-function: linear;
    }
  }
}

@keyframes star-add {
  0% {
    color: var(--fill-color);
    transform: scale(1);
  }

  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

@keyframes star-fill-add {
  0% {
    left: var(--left);
    top: var(--top);
    font-size: calc(var(--font-size) / 2.5);
    transform: rotate(720deg);
  }

  100% {
    left: 0;
    top: 0;
    font-size: var(--font-size);
  }
}

@keyframes star-bling-1 {
  0% {
    color: var(--fill-color);
    opacity: 0;
    transform: scale(.8) rotate(-45deg);
  }

  50% {
    opacity: 1;
  }

  100% {
    transform: scale(1) rotate(-45deg);
    opacity: 0;
  }
}

@keyframes star-bling-2 {
  0% {
    color: var(--fill-color);
    transform: scale(.8) rotate(45deg);
  }

  50% {
    opacity: 1;
  }

  100% {
    transform: scale(1) rotate(45deg);
    opacity: 0;
  }
}

@keyframes star-bling-3 {
  0% {
    color: var(--fill-color);
    transform: scale(.8);
  }

  50% {
    opacity: 1;
  }

  100% {
    transform: scale(1);
    opacity: 0;
  }
}

@keyframes star-subtract {
  0% {
    opacity: 0;
  }

  100% {
    opacity: 1;
  }
}

@keyframes star-fill-subtract {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}