How to use uniapp to develop picture shooting function
Introduction:
With the popularity of smartphones, photography has become an indispensable part of people's lives. In mobile application development, the picture shooting function has also become an important part of many applications. This article will introduce how to use uniapp to develop picture shooting functions, and attach code examples to help readers quickly master this technology.
1. Preparation work
Before starting development, we need to ensure that the following preparation work has been completed:
2. Create a project
3. Develop the picture shooting function
<template> <div class="camera"> <!-- 显示相机画面的区域 --> <camera class="camera-preview" @created="onCameraCreated" @error="onCameraError"></camera> <!-- 拍摄按钮 --> <button class="capture-button" @click="captureImage">拍摄</button> <!-- 显示拍摄后的照片 --> <image :src="photoUrl" class="captured-photo"></image> </div> </template> <script> export default { data() { return { photoUrl: '' } }, methods: { onCameraCreated(camera) { this.camera = camera // 相机已创建,可以开始预览 camera.startPreview() }, onCameraError(error) { console.error('Camera error:', error) }, captureImage() { // 拍摄照片 this.camera.takePhoto().then((res) => { // 将照片保存到相册 uni.saveImageToPhotosAlbum({ filePath: res.tempImagePath, success: (res) => { uni.showToast({ title: '保存成功', icon: 'success' }) }, fail: (error) => { console.error('Save image error:', error) } }) this.photoUrl = res.tempImagePath }).catch((error) => { console.error('Capture image error:', error) }) } } } </script> <style> .camera { position: relative; height: 100%; } .camera-preview { width: 100%; height: 100%; } .capture-button { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); padding: 10px 20px; background-color: #007AFF; color: #FFF; border-radius: 6px; font-size: 16px; } .captured-photo { width: 300px; height: 300px; margin-top: 20px; } </style>
{ "mp-weixin": { "permission": { "scope.camera": { "desc": "用于拍摄照片" } } } }
3. Run and test
Conclusion:
This article introduces how to use uniapp to develop the picture shooting function and provides a complete code example. Through the above steps, readers can quickly master the development methods of uniapp framework and picture shooting function. I hope this article can be helpful to readers and realize their own mobile application development needs.
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