ionic 组件之二维码扫描

一、简介

开源软件 https://github.com/phonegap/phonegap-plugin-barcodescanner 可以支持各种类型的扫描，包括二维码等等……

QR Code

Data Matrix

UPC E

UPC A

EAN 8

EAN 13

Code 128

Code 39

ITF

插件内部使用类库 https://github.com/zxing/zxing

二、安装插件

首先准备项目：

ionic start IonicProject blank

cd IonicProject

ionic platform add android

ionic platform add ios

1、安装插件

This requires phonegap 5.0+ ( current stable v3.0.0 )

phonegap plugin add phonegap-plugin-barcodescanner

Older versions of phonegap can still install via the deprecated id ( stale v2.0.1 )

phonegap plugin add com.phonegap.plugins.barcodescanner

It is also possible to install via repo url directly ( unstable )

phonegap plugin add https://github.com/phonegap/phonegap-plugin-barcodescanner.git[/code] 
2、下载 ng-cordova 相应 js

下载 https://github.com/driftyco/ng-cordova/releases

将其中的 ng-cordova.min.js 拷贝到项目的 www/js 目录

修改 index.html 代码

<script src="lib/ionic/js/ionic.bundle.js"></script>

<script src="js/ng-cordova.min.js"></script>

<script src="cordova.js"></script>

<script src="js/app.js"></script>

三、使用类库

1、修改 app.js

angular.module('starter', ['ionic', 'ngCordova'])

2、使用扫描功能

exampleApp.controller("ExampleController", function($scope, $cordovaBarcodeScanner) {

$scope.scanBarcode = function() {

$cordovaBarcodeScanner.scan().then(function(imageData) {

alert(imageData.text);

console.log("Barcode Format -> " + imageData.format);

console.log("Cancelled -> " + imageData.cancelled);

}, function(error) {

console.log("An error happened -> " + error);

});

};

});