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scanner.","homepage":"https://github.com/dachongziy/react-native-qr-scanner#readme","keywords":["qrcode","scanner","react-native"],"repository":{"type":"git","url":"git+https://github.com/dachongziy/react-native-qr-scanner.git"},"author":{"name":"yang"},"bugs":{"url":"https://github.com/dachongziy/react-native-qr-scanner/issues"},"license":"MIT","readme":"# react-native-qr-scanner\r\n[![NPM Version](https://img.shields.io/npm/v/react-native-qr-scanner.svg?style=flat)](https://www.npmjs.com/package/react-native-qr-scanner)\r\n [![License](http://img.shields.io/npm/l/react-native-qr-scanner.svg?style=flat)](https://github.com/shifeng1993/react-native-qr-scanner/blob/master/LICENSE)\r\n\r\n一个react-native的二维码扫描组件，支持扫描区域的限制以及扫描区域的偏移。\r\n\r\n## 安装步骤：\r\n\r\n### 安装依赖\r\n```bash\r\nyarn add react-native-camera react-native-qr-scanner\r\n```\r\n\r\n### link依赖到native \r\n```bash\r\nreact-native link react-native-camera && react-native-qr-scanner\r\n```\r\n\r\n### 添加相机权限：\r\n- ios在 `ios/projectName/Info.plist`:\r\n```xml\r\nNSCameraUsageDescription\r\n\r\nNSPhotoLibraryUsageDescription\r\n\r\nNSMicrophoneUsageDescription\r\n\r\nNSPhotoLibraryAddUsageDescription\r\n\r\n```\r\n- android在 `android/app/src/main/AndroidManifest.xml`:\r\n```xml\r\n\r\n\r\n\r\n\r\n\r\n```\r\n\r\n#### 修复相机组件找不到google()方法的错误\r\n\r\nhttps://github.com/react-native-community/react-native-camera/blob/master/docs/GradleUpgradeGuide.md\r\n\r\n## 使用组件\r\n\r\n### 扫描\r\n```javascript\r\nimport React, {Component} from 'react';\r\nimport {Platform, StyleSheet, Text, View, TouchableOpacity} from 'react-native';\r\nimport {QRscanner} from 'react-native-qr-scanner';\r\n\r\nexport default class Scanner extends Component {\r\n constructor(props) {\r\n super(props);\r\n this.state = {\r\n flashMode: false,\r\n zoom: 0.2\r\n };\r\n }\r\n render() {\r\n return (\r\n \r\n \r\n \r\n );\r\n }\r\n bottomView = ()=>{\r\n return(\r\n \r\n this.setState({flashMode:!this.state.flashMode})}>\r\n 点我开启/关闭手电筒\r\n \r\n \r\n );\r\n }\r\n onRead = (res) => {\r\n console.log(res);\r\n }\r\n}\r\nconst styles = StyleSheet.create({\r\n container: {\r\n flex: 1,\r\n backgroundColor: '#000'\r\n }\r\n});\r\n```\r\n\r\n### 识别\r\n```javascript\r\nimport React, {Component} from 'react';\r\nimport {Platform, StyleSheet, Text, View, TouchableOpacity} from 'react-native';\r\nimport {QRreader} from 'react-native-qr-scanner';\r\nimport ImagePicker from 'react-native-image-picker';\r\n\r\nexport default class Scanner extends Component {\r\n constructor(props) {\r\n super(props);\r\n this.state = {\r\n reader: {\r\n message: null,\r\n data: null\r\n }\r\n };\r\n }\r\n render() {\r\n return (\r\n \r\n {\r\n this.openPhoto();\r\n }}>\r\n 打开相册识别二维码\r\n \r\n \r\n {!this.state.reader? {!this.state.reader.message?'':`${this.state.reader.message}`}: {!this.state.reader.message?'':`${this.state.reader.message}:${this.state.reader.data}`}}\r\n \r\n \r\n );\r\n }\r\n \r\n openPhoto(){\r\n console.log('ImagePicker');\r\n ImagePicker.launchImageLibrary({}, (response) => {\r\n console.log('Response = ', response);\r\n \r\n if (response.didCancel) {\r\n console.log('User cancelled image picker');\r\n }\r\n else if (response.error) {\r\n console.log('ImagePicker Error: ', response.error);\r\n }\r\n else if (response.customButton) {\r\n console.log('User tapped custom button: ', response.customButton);\r\n }\r\n else {\r\n if(response.uri){\r\n var path = response.path;\r\n if(!path){\r\n path = response.uri;\r\n }\r\n QRreader(path).then((data)=>{\r\n this.setState({reader: {\r\n message: '识别成功',\r\n data: data\r\n }});\r\n // 十秒后自动清空\r\n setTimeout(() => {\r\n this.setState({reader: {\r\n message: null,\r\n data: null\r\n }})\r\n }, 10000);\r\n }).catch((err)=>{\r\n this.setState({reader: {\r\n message: '识别失败',\r\n data: null\r\n }});\r\n });\r\n \r\n }\r\n }\r\n });\r\n }\r\n}\r\nconst styles = StyleSheet.create({\r\n container: {\r\n flex: 1,\r\n backgroundColor: '#fff'\r\n }\r\n});\r\n```\r\n\r\n## 运行示例\r\n```bash\r\n$ cd example\r\n$ yarn\r\n$ react-native run-ios 或者 $ react-native run-android \r\n```\r\n示例中代码已link过，所以不用link\r\n\r\n### QRscanner\r\n| 属性 | 类型 | 默认值 | 备注 |\r\n| ------------- | ------- | ------------- | ------------- |\r\n| isRepeatScan | boolean | false | 是否允许重复扫描 |\r\n| zoom | number | 0 | 相机焦距 范围0-1 |\r\n| flashMode | bool | false | 开启手电筒 |\r\n| onRead | func | (res)=>{} | 扫描回调 |\r\n| maskColor | string | '#0000004D' | 遮罩层颜色 |\r\n| borderColor | string | '#000000' | 边框颜色 |\r\n| cornerColor | string | '#22ff00' | 扫描框转角的颜色 |\r\n| borderWidth | number | 0 | 扫描框的边框宽度 |\r\n| cornerBorderWidth | number | 4 | 扫描框转角的border宽度 |\r\n| cornerBorderLength | number | 20 | 扫描框转角的宽度高度 |\r\n| rectHeight | number | 200 | 扫描框高度 |\r\n| rectWidth | number | 200 | 扫描框宽度 |\r\n| finderX | number | 0 | 扫描框X轴偏移量 |\r\n| finderY | number | 0 | 扫描框Y轴偏移量 |\r\n| isCornerOffset | bool | true | 边角是否偏移 |\r\n| cornerOffsetSize | number | 1 | 偏移量 |\r\n| bottomHeight | number | 100 | 底部预留高度 |\r\n| scanBarAnimateTime | number | 2500 | 扫描线时间 |\r\n| scanBarColor | string | '#22ff00' | 扫描线颜色 |\r\n| scanBarImage | any | null | 扫描线图片 |\r\n| scanBarHeight | number | 1.5 | 扫描线高度 |\r\n| scanBarMargin | number | 6 | 扫描线左右margin |\r\n| hintText | string | '将二维码/条码放入框内，即可自动扫描'| 提示字符串 |\r\n| hintTextStyle | object | {color: '#fff',fontSize: 14,backgroundColor: 'transparent'} | 提示字符串样式 |\r\n| hintTextPosition | number | 130 | 提示字符串距离容器底部的值 |\r\n| renderTopView | func | () =>{} | render顶部View |\r\n| renderBottomView | func | ()=> | render底部View |\r\n| isShowScanBar | bool | true | 是否显示扫描线 |\r\n| topViewStyle | object | null | render顶部容器样式 |\r\n| bottomViewStyle | object | null | render底部容器样式 | \r\n\r\n### QRreader\r\nQRreader(path:uri)是一个promise对象，接受一个uri图片路径参数，\r\n返回成功识别的对象，失败则返回错误\r\n\r\n\r\n## 历史版本特性\r\n#### 1.3.2 因android扫描区域计算有诸多问题，所以注释掉android计算扫描区域，恢复android设备的全屏扫描。\r\n#### 1.3.1 修复ios打包发生的找不到库的错误,降低相册二维码识别的ios最低版本支持\r\n#### 1.3.0 修复android扫描的一个bug，加入相册二维码识别，感谢lewin大神的开源二维码识别。\r\n#### 1.2.4 限制扫码类型，修复android报错\r\n#### 1.2.2 添加是否允许重复扫描的api\r\n#### 1.2.1 修复android的报错以及android扫描区域的bug\r\n#### 1.2.0 修改底层依赖相机组件，添加扫描区域，并设置XY轴偏移量\r\n#### 1.1.3 完善文档\r\n#### 1.1.2 git保留demo示例，npm包去掉demo示例\r\n#### 1.1.1 修改文档错误地方，新增demo示例\r\n#### 1.1.0 修复bug，新增手电筒api\r\n#### 1.0.0 上传基础组件\r\n","readmeFilename":"README.md"}