1 apply plugin: 'com.android.application'

 2

 3 android {

 4     compileSdkVersion 24

 5     buildToolsVersion "24.0.1"

 6

 7     defaultConfig {

 8         applicationId "com.example.ly.scanrfid"

 9         minSdkVersion 19

10         targetSdkVersion 24

11         versionCode 1

12         versionName "1.0"

13     }

14     buildTypes {

15         release {

16             minifyEnabled false

17             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

18         }

19     }

20     repositories {

21         mavenCentral()

22         maven {

23             url "http://dl.bintray.com/journeyapps/maven"

24         }

25     }

26 }

27

28 dependencies {

29     compile fileTree(dir: 'libs', include: ['*.jar'])

30     testCompile 'junit:junit:4.12'

31     compile 'com.android.support:appcompat-v7:24.2.1'

32     // Supports Android 4.0.3 and later (API level 15)

33     compile 'com.journeyapps:zxing-android-embedded:2.0.1@aar'

34

35     // Supports Android 2.1 and later (API level 7), but not optimal for later Android versions.

36     // If you only plan on supporting Android 4.0.3 and up, you don't need to include this.

37     compile 'com.journeyapps:zxing-android-legacy:2.0.1@aar'

38

39     // Convenience library to launch the scanning and encoding Activities.

40     // It automatically picks the best scanning library from the above two, depending on the

41     // Android version and what is available.

42     compile 'com.journeyapps:zxing-android-integration:2.0.1@aar'

43

44     // Version 3.0.x of zxing core contains some code that is not compatible on Android 2.2 and earlier.

45     // This mostly affects encoding, but you should test if you plan to support these versions.

46     // Older versions e.g. 2.2 may also work if you need support for older Android versions.

47     compile 'com.google.zxing:core:3.0.1'

48 }

<?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>

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) {

        //扫描操作

        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();

        }

    }

}