Development scenarios suitable for uni-app

uni-app is a cross-platform development framework based on Vue.js, supporting "write once, run anywhere." It is suitable for various development scenarios, from simple mobile applications to complex cross-platform projects, all of which can be efficiently implemented. Below are some typical use cases and their specific implementation methods.

Rapid Development of Multi-Platform Applications

The core advantage of uni-app lies in writing code once and deploying it to multiple platforms such as iOS, Android, H5, and mini-programs. For example, an e-commerce app that needs to cover WeChat Mini Programs, mobile apps, and H5 can significantly reduce redundant development work using uni-app.

// Example: Cross-platform page structure
<template>
  <view>
    <text>Product Name: {{ product.name }}</text>
    <button @click="addToCart">Add to Cart</button>
  </view>
</template>

<script>
export default {
  data() {
    return {
      product: { name: 'uni-app Practical Guide', price: 99 }
    }
  },
  methods: {
    addToCart() {
      uni.showToast({
        title: 'Added to cart',
        icon: 'success'
      });
    }
  }
}
</script>

Mini-Program Development and Extension

uni-app provides excellent support for mini-programs, especially WeChat Mini Programs. Developers can directly use uni-app syntax to write mini-programs while also leveraging native mini-program capabilities. For example, implementing a scan code feature:

// Calling the WeChat Mini Program scan code API
uni.scanCode({
  success: (res) => {
    console.log('Scan result:', res.result);
  }
});

If a project needs to be deployed to Alipay Mini Programs, Baidu Mini Programs, or other platforms, uni-app's cross-platform features eliminate the need for separate development for each platform.

Enterprise-Level Backend Management Systems

uni-app is not only suitable for mobile development but can also be used to build backend management systems. With H5 and PC adaptations, responsive layouts can be achieved. For example, displaying a table in a management backend:

<template>
  <view class="container">
    <uni-table :data="tableData">
      <uni-table-column prop="name" label="Name"></uni-table-column>
      <uni-table-column prop="age" label="Age"></uni-table-column>
    </uni-table>
  </view>
</template>

<script>
export default {
  data() {
    return {
      tableData: [
        { name: 'Zhang San', age: 25 },
        { name: 'Li Si', age: 30 }
      ]
    }
  }
}
</script>

Hybrid Native Development

For scenarios requiring deep customization of native features, uni-app supports native plugin extensions. For example, integrating a third-party map SDK:

1. Write a native plugin (Android example):

public class MapPlugin implements UniModule {
  @UniJSMethod
  public void showMap(UniJSCallback callback) {
    // Call the native map SDK
    callback.invoke("Map loaded successfully");
  }
}

2. Call it in uni-app:

const mapModule = uni.requireNativePlugin('MapPlugin');
mapModule.showMap((res) => {
  console.log(res);
});

Rapid Prototyping

uni-app's development tools (e.g., HBuilderX) offer rich templates and components, making them ideal for quick prototyping. For example, a social app's post feature:

<template>
  <view>
    <textarea v-model="postContent" placeholder="Share your thoughts"></textarea>
    <button @click="publish">Publish</button>
  </view>
</template>

<script>
export default {
  data() {
    return {
      postContent: ''
    }
  },
  methods: {
    publish() {
      uni.request({
        url: 'https://api.example.com/posts',
        method: 'POST',
        data: { content: this.postContent },
        success: () => {
          uni.showToast({ title: 'Published successfully' });
        }
      });
    }
  }
}
</script>

Multi-Team Collaborative Development

uni-app supports modular development, making it suitable for large-scale projects with multiple teams. By leveraging subpackage loading and component-based design, development efficiency can be improved. For example, splitting the user module into an independent component:

// components/user-card.vue
<template>
  <view class="user-card">
    <image :src="user.avatar"></image>
    <text>{{ user.name }}</text>
  </view>
</template>

<script>
export default {
  props: {
    user: Object
  }
}
</script>

Reference it in the main page:

<template>
  <view>
    <user-card :user="currentUser"></user-card>
  </view>
</template>

<script>
import UserCard from '@/components/user-card.vue';

export default {
  components: { UserCard },
  data() {
    return {
      currentUser: { name: 'uni-app', avatar: '/static/logo.png' }
    }
  }
}
</script>

Education and Training Applications

uni-app's cross-platform features make it highly suitable for developing online education apps. For example, implementing a video player:

<template>
  <view>
    <video :src="videoUrl" controls></video>
    <button @click="nextVideo">Next Lesson</button>
  </view>
</template>

<script>
export default {
  data() {
    return {
      videoUrl: 'https://example.com/video1.mp4',
      videos: [
        'https://example.com/video1.mp4',
        'https://example.com/video2.mp4'
      ],
      currentIndex: 0
    }
  },
  methods: {
    nextVideo() {
      this.currentIndex++;
      this.videoUrl = this.videos[this.currentIndex];
    }
  }
}
</script>

IoT (Internet of Things) Control Interfaces

uni-app can be used to develop control interfaces for IoT devices. For example, communicating with hardware via WebSocket:

<script>
export default {
  data() {
    return {
      socket: null,
      deviceStatus: 'Offline'
    }
  },
  mounted() {
    this.socket = uni.connectSocket({
      url: 'wss://iot.example.com'
    });
    this.socket.onMessage((res) => {
      this.deviceStatus = res.data;
    });
  },
  methods: {
    sendCommand(cmd) {
      this.socket.send({ data: cmd });
    }
  }
}
</script>