详解Android 扫描条形码（Zxing插件）

概述使用AndroidStudio一、在build.gradle(Module:app)添加代码 下载，调用插件applyplugin:\'com.android.application\'

使用AndroID Studio

一、在build.gradle(Module:app)添加代码  下载，调用插件

apply plugin: 'com.androID.application'androID { compileSdkVersion 24 buildToolsversion "24.0.1" defaultConfig {  applicationID "com.example.ly.scanrfID"  minSdkVersion 19  targetSdkVersion 24  versionCode 1  versionname "1.0" } buildTypes {  release {   MinifyEnabled false   proguardfiles getDefaultProguardfile('proguard-androID.txt'),'proguard-rules.pro'  } } repositorIEs {  mavenCentral()  maven {  url "http://dl.bintray.com/journeyapps/maven"  } }}dependencIEs { compile filetree(dir: 'libs',include: ['*.jar']) testCompile 'junit:junit:4.12' compile 'com.androID.support:appcompat-v7:24.2.1' // Supports AndroID 4.0.3 and later (API level 15) compile 'com.journeyapps:zxing-androID-embedded:2.0.1@aar' // Supports AndroID 2.1 and later (API level 7),but not optimal for later AndroID versions. // If you only plan on supporting AndroID 4.0.3 and up,you don't need to include this. compile 'com.journeyapps:zxing-androID-legacy:2.0.1@aar' // ConvenIEnce library to launch the scanning and enCoding ActivitIEs. // It automatically picks the best scanning library from the above two,depending on the // AndroID version and what is available. compile 'com.journeyapps:zxing-androID-integration:2.0.1@aar' // Version 3.0.x of zxing core contains some code that is not compatible on AndroID 2.2 and earlIEr. // This mostly affects enCoding,but you should test if you plan to support these versions. // older versions e.g. 2.2 may also work if you need support for older AndroID versions. compile 'com.Google.zxing:core:3.0.1'}

二、添加权限

<?xml version="1.0" enCoding="utf-8"?><manifest xmlns:androID="http://schemas.androID.com/apk/res/androID"   package="com.example.ly.scanrfID"> <uses-permission androID:name="androID.permission.CAMERA"/> <uses-permission androID:name="androID.permission.VIBRATE"/> <uses-permission androID:name="androID.permission.INTERNET"/> <application  androID:allowBackup="true"  androID:icon="@mipmap/ic_launcher"  androID:label="@string/app_name"  androID:supportsRtl="true"  androID:theme="@style/Apptheme">  <activity androID:name=".MainActivity">   <intent-filter>    <action androID:name="androID.intent.action.MAIN"/>    <category androID:name="androID.intent.category.LAUNCHER"/>   </intent-filter>  </activity> </application></manifest>

三、Activity代码

package com.example.ly.scanrfID;import androID.content.Intent;import androID.support.v7.app.AppCompatActivity;import androID.os.Bundle;import androID.util.Log;import androID.vIEw.VIEw;import androID.Widget.Toast;import com.Google.zxing.integration.androID.IntentIntegrator;import com.Google.zxing.integration.androID.IntentResult;public class MainActivity extends AppCompatActivity { @OverrIDe protected voID onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentVIEw(R.layout.activity_main); } // 扫描按钮点击监听事件 public voID clickScan(VIEw vIEw) {  //扫描 *** 作  IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);  integrator.initiateScan(); } @OverrIDe protected voID onActivityResult(int requestCode,int resultCode,Intent data) {  // 跳转扫描页面返回扫描数据  IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode,resultCode,data);  //  判断返回值是否为空  if (scanResult != null) {   //返回条形码数据   String result = scanResult.getContents();   Log.d("code",result);   Toast.makeText(this,result,Toast.LENGTH_LONG).show();  } }}

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