How to use Vue to implement WeChat-like voice message effects

How to use Vue to implement WeChat-like voice message effects

Introduction:
With the development of mobile Internet, voice messages have become one of the important ways for people to communicate in daily life. . WeChat is currently one of the most popular social software, and the voice message special effects experience it provides is deeply loved by users. This article will introduce how to use Vue to implement WeChat-like voice message effects and provide specific code examples.

1. Preparation
   Before we begin, we need to ensure that Vue and related development environments have been installed. You can use the Vue CLI to create a new project or add Vue dependencies to an existing project.
2. Create component
   We first need to create a voice message component named VoiceMessage.vue. This component will be responsible for displaying the icon, duration and special effects of the voice message.

<template>
  <div class="voice-message" @click="playAudio">
    <div class="icon" :class="{ active: playing }"></div>
    <div class="duration">{{ duration }}"</div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      playing: false,
      duration: 0
    };
  },
  methods: {
    playAudio() {
      // 在此处实现播放语音的逻辑
    }
  }
};
</script>

<style scoped>
.voice-message {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.icon {
  width: 20px;
  height: 20px;
  background-color: #007aff;
  border-radius: 50%;
  margin-right: 10px;
  opacity: 0.5;
  transition: opacity 0.3s;
}

.icon.active {
  opacity: 1;
}

.duration {
  font-size: 14px;
  color: #999;
}
</style>

In the above code, we use Vue’s single-file component format, which includes templates, scripts and styles. The voice message component has an icon and a duration label, and the style of the icon can be dynamically changed according to the playback status.

3. Implement playback logic
   In method playAudio, we will implement the playback logic of the voice. You can use the HTML5 <audio> element to play audio. We add an audio object to the component's data and perform corresponding operations in the playAudio method.

<template>
  <!-- ...略 -->
</template>

<script>
export default {
  data() {
    return {
      playing: false,
      duration: 0,
      audio: null
    };
  },
  methods: {
    playAudio() {
      if (!this.audio) {
        this.audio = new Audio('path/to/voice.mp3');
      }

      if (this.playing) {
        this.audio.pause();
        this.playing = false;
      } else {
        this.audio.play();
        this.playing = true;
      }
    }
  }
};
</script>

<!-- ...略 -->

In the above code, we first determine whether this.audio already exists. If it does not exist, create a new Audio object and Pass the path to the audio file. Then determine whether to play the audio or pause the audio based on the status of playing.

4. Add special effects
   In order to achieve WeChat-like voice message special effects, we can use the @keyframes rules in CSS. Add the following code to the style.

.icon.active {
  /* ...略 */
  animation: pulse 1s infinite alternate;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.2);
  }
}

In the above code, we define an animation named pulse to change the transform property of the icon from the initial state scale( 1) changes to scale(1.2), and performs an unlimited number of alternating movements back and forth within 1 second. By adding the animation attribute to the style of .icon.active, the animation will start running when the icon's active class is added.

5. Using components
   Now we can use the voice message component we just created in other Vue components.

<template>
  <div>
    <voice-message></voice-message>
  </div>
</template>

<script>
import VoiceMessage from './VoiceMessage.vue';

export default {
  components: {
    VoiceMessage
  }
};
</script>

In the above code, we introduced the voice message component just created through import and registered the component in components. The component can then be instantiated in the template using the <voice-message></voice-message> tag.

Summary:
This article introduces how to use Vue to implement WeChat-like voice message effects. By creating a voice message component, implementing playback logic and adding special effects, we can easily implement a WeChat-like voice message experience in the Vue project. I hope this article is helpful to you, thank you for reading.

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