How to achieve flash and halo effects of images in Vue?

How to achieve the flash and halo effect of pictures in Vue?

With the development of Web applications, users have higher and higher requirements for web pages. In order to attract users' attention, in addition to the quality of the content, the visual effect of the page has become increasingly important. Among them, the flash and halo effect of pictures is a common effect, which can add a certain degree of dynamics and visual impact to the web page. This article will introduce how to use the Vue framework to achieve the flash and halo effects of images, and attach corresponding code examples.

First of all, we need to use Vue’s animation function. In Vue, animation can be implemented through the transition component. We can set different entering and leaving transition effects on the transition component to achieve the flash and halo effect of the picture.

The following is a simple sample code that demonstrates how to achieve the flash effect of an image:

<template>
  <div>
    <img :src="imageSrc" alt="Example Image" @click="toggleShine" :class="[{'shine': isShining}]">
  </div>
</template>

<script>
export default {
  data() {
    return {
      imageSrc: 'example.jpg',
      isShining: false
    };
  },
  methods: {
    toggleShine() {
      this.isShining = !this.isShining;
    }
  }
};
</script>

<style>
.shine {
  position: relative;
  overflow: hidden;
}

.shine:after {
  content: "";
  display: block;
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  z-index: 1;
  background: radial-gradient(circle, rgba(255,255,255,0) 0%, rgba(255,255,255,0.7) 50%, rgba(255,255,255,0) 100%);
  animation: shine 1.5s infinite;
}

@keyframes shine {
  0% {
    transform: translateX(-50%) translateY(-50%) rotate(0deg);
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    transform: translateX(-50%) translateY(-50%) rotate(180deg);
    opacity: 0;
  }
}
</style>

In the above code, we first define an img tag to display an image. By binding the dynamic class name with :class, we can decide whether to add the shine class name based on the value of isShining. shineThe function of the class name is to add a flash effect style to the picture. The

selector in the style is used to create a pseudo element to achieve the halo effect of the image. Control the animation details of the halo effect by setting the background to a radial gradient and the animation property.

In data, we define a isShining variable and initialize it to false. By defining the toggleShine method, we can switch the value of isShining by clicking on the image, thereby controlling the flashing effect of the image.

The above code shows how to use Vue to achieve a simple picture flash effect. You can change the style and animation details to achieve different effects according to your needs.

To summarize, through Vue’s animation function, we can easily achieve the flash and halo effects of pictures. These effects can add dynamics and visual impact to web pages and enhance user experience. Hope this article helps you!

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