Android Studio에 ZXing 통합

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Android Studio에 ZXing 통합

optionbox 2020. 9. 11. 07:54

Android Studio에 ZXing 통합

내가 한 모든 단계를 설명하기 시작하고 결국 문제가 무엇인지 설명하겠습니다.

ZXing-2.2 다운로드 https://code.google.com/p/zxing/downloads/list
모든 zxing-2.2의 Extrac.
Apache Ant http://www.youtube.com/watch?v=XJmndRfb1TU 다운로드 및 설치
Windows 명령 줄 (실행-> CMD)을 사용하여 추출 된 디렉터리로 이동합니다.
명령 줄 창에서- 'ant -f core / build.xml'을 입력하고 Enter 키를 누르고 Apache가 마술처럼 작동하도록합니다.

지금은 ZXing 라이브러리를 Android 애플리케이션에 직접 통합하는 것과 같습니다.

그러나 Wooops, "Buildfile : core \ build.xml이 존재하지 않습니다! 빌드에 실패했습니다. 좋습니다. 6. ZXing 가져 오기-core / build.xml 누락

이제 예, core.jar이 있습니다.

Android Studio, File-> Import Project-> Select / android / in /zxing-2.2/-> Create project from existing sources-> Project name : andoid-> Source files for ... all selected Next-> Libraries (cant 아무것도하지 않음) 다음-> 모듈 (안드로이드 확인) 다음-> SDK 1.7 다음-> 마침

프로젝트 열기-> 빌드-> 프로젝트 다시 빌드

100 개 오류 19 개 경고

파일-> 프로젝트 구조-> 라이브러리-> 추가-> 자바-> 이전에 만든 core.jar를 선택하면 확인-> 라이브러리 'core'가 선택한 모듈에 추가됩니다. (android) OK-> 프로젝트 구조 대화 상자에서 OK.

빌드-> 프로젝트 다시 빌드

15 개 오류 20 개 경고

모든 오류는 오류입니다. 상수 표현식이 필요하고 Android에서 ZXing 프로젝트의 Switch 케이스에서 오류가 표시 됩니다. 다른 경우 모든 스위치를 변경합니다.

0 오류 20 경고

이제 계속합니다.

파일-> 새 프로젝트-> zxing_demo 다음-> 다음-> 빈 활동 다음-> 완료

새 프로젝트에서-> 파일-> 모듈 가져 오기-> 검색 및 선택 / android / 확인-> 기존 소스에서 모듈 만들기 다음-> 다음-> 다음-> 다음-> 마침

이제 탐색기 / android / / zging_demoProject / 및 외부 라이브러리에서 볼 수 있습니다.

이제 QR 스캔 코드를 변경합니다.

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.zxing_demo"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="7"
    android:targetSdkVersion="16" />
<uses-permission android:name="android.permission.CAMERA"/>
<uses-feature android:name="android.hardware.camera" />
<uses-feature
    android:name="android.hardware.camera.autofocus"
    android:required="false" />
<uses-feature
    android:name="android.hardware.touchscreen"
    android:required="false" />
<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.zxing_demo.MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:clearTaskOnLaunch="true"
        android:stateNotNeeded="true"
        android:configChanges="orientation|keyboardHidden"
        android:name="com.google.zxing.client.android.CaptureActivity"
        android:screenOrientation="landscape"
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
        android:windowSoftInputMode="stateAlwaysHidden" >
        <intent-filter >
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
        <intent-filter >
            <action android:name="com.google.zxing.client.android.SCAN" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
</application>

MainActivity.java

package com.example.zxing_demo;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Intent intent = new Intent("com.google.zxing.client.android.SCAN");
    intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
    startActivityForResult(intent, 0);
}


public void onActivityResult(int requestCode, int resultCode, Intent intent) {
    if (requestCode == 0) {
        if (resultCode == RESULT_OK) {
            String contents = intent.getStringExtra("SCAN_RESULT");
            String format = intent.getStringExtra("SCAN_RESULT_FORMAT");
            // Handle successful scan
        } else if (resultCode == RESULT_CANCELED) {
            // Handle cancel
        }
    }
}

}

이제 테스트, 실행-> 디버그

그리고 충돌.

Logcat

08-31 02:58:28.085  20665-20665/com.example.zxing_demo E/AndroidRuntime: FATAL EXCEPTION: main
    java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.zxing_demo/com.google.zxing.client.android.CaptureActivity}: java.lang.ClassNotFoundException: com.google.zxing.client.android.CaptureActivity
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1891)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
    at android.app.ActivityThread.access$600(ActivityThread.java:127)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4448)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
    at dalvik.system.NativeStart.main(Native Method)
    Caused by: java.lang.ClassNotFoundException: com.google.zxing.client.android.CaptureActivity
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
    at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1882)
    ... 11 more

이 줄의 AndroidManifest.xml에서 볼 수 있습니다.

android:name="com.google.zxing.client.android.CaptureActivity"

빨간색의 "CaptureActivity"및 오류 메시지 : 'CaptureActivity'기호를 해결할 수 없음

파일-> 프로젝트 구조-> 모듈-> zxing_demo-> 종속성-> 추가-> 모듈 종속성-> Android 확인-> 적용 및 확인

이제 CaptureActivity가 좋아 보입니다.

다시 디버그

08-31 03:06:58.513  21740-21740/com.example.zxing_demo E/AndroidRuntime: FATAL EXCEPTION: main
    java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.zxing_demo/com.google.zxing.client.android.CaptureActivity}: java.lang.ClassNotFoundException: com.google.zxing.client.android.CaptureActivity
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1891)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
    at android.app.ActivityThread.access$600(ActivityThread.java:127)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4448)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
    at dalvik.system.NativeStart.main(Native Method)
    Caused by: java.lang.ClassNotFoundException: com.google.zxing.client.android.CaptureActivity
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
    at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1882)
    ... 11 more

I think I will use the application and intents, but now I want do this work, if someone now whats happen tell me please.

I was integrating ZXING into an Android application and there were no good sources for the input all over, I will give you a hint on what worked for me - because it turned out to be very easy.

There is a real handy git repository that provides the zxing android library project as an AAR archive.

https://github.com/journeyapps/zxing-android-embedded

All you have to do is add this to your build.gradle

repositories {
    jcenter()
}

dependencies {
    implementation 'com.journeyapps:zxing-android-embedded:3.0.2@aar'
    implementation 'com.google.zxing:core:3.2.0'
}

and Gradle does all the magic to compile the code and makes it accessible in your app.

To start the Scanner afterwards, use this class/method: From the Activity:

new IntentIntegrator(this).initiateScan(); // `this` is the current Activity

From a Fragment:

IntentIntegrator.forFragment(this).initiateScan(); // `this` is the current Fragment
// If you're using the support library, use IntentIntegrator.forSupportFragment(this) instead.

There are several customizing options:

IntentIntegrator integrator = new IntentIntegrator(this);
integrator.setDesiredBarcodeFormats(IntentIntegrator.ONE_D_CODE_TYPES);
integrator.setPrompt("Scan a barcode");
integrator.setCameraId(0);  // Use a specific camera of the device
integrator.setBeepEnabled(false);
integrator.setBarcodeImageEnabled(true);
integrator.initiateScan();

They have a sample-project and are providing several integration examples:

If you already visited the link you going to see that I just copy&pasted the code from the git README. If not, go there to get some more insight and code examples.

buttion.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                new com.google.zxing.integration.android.IntentIntegrator(Fragment.this).initiateScan();
            }
        });

    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
        if(result != null) {
            if(result.getContents() == null) {
                Log.d("MainActivity", "Cancelled scan");
                Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show();
            } else {
                Log.d("MainActivity", "Scanned");
                Toast.makeText(this, "Scanned: " + result.getContents(), Toast.LENGTH_LONG).show();
            }
        } else {
            // This is important, otherwise the result will not be passed to the fragment
            super.onActivityResult(requestCode, resultCode, data);
        }
    }



dependencies {
    compile 'com.journeyapps:zxing-android-embedded:3.2.0@aar'
    compile 'com.google.zxing:core:3.2.1'
    compile 'com.android.support:appcompat-v7:23.1.0'
}

Anybody facing the same issues, follow the simple steps:

Import the project android from downloaded zxing-master zip file using option Import project (Eclipse ADT, Gradle, etc.) and add the dollowing 2 lines of codes in your app level build.gradle file and and you are ready to run.

So simple, yahh...

dependencies {
        // https://mvnrepository.com/artifact/com.google.zxing/core
        compile group: 'com.google.zxing', name: 'core', version: '3.2.1'
        // https://mvnrepository.com/artifact/com.google.zxing/android-core
        compile group: 'com.google.zxing', name: 'android-core', version: '3.2.0'

    }

You can always find latest version core and android core from below links:

https://mvnrepository.com/artifact/com.google.zxing/core/3.2.1 https://mvnrepository.com/artifact/com.google.zxing/android-core/3.2.0

UPDATE (29.05.2019)

Add these dependencies instead:

dependencies {
    implementation 'com.google.zxing:core:3.4.0'
    implementation 'com.google.zxing:android-core:3.3.0'
}

this tutorial help me to integrate to android studio: http://wahidgazzah.olympe.in/integrating-zxing-in-your-android-app-as-standalone-scanner/ if down try THIS

just add to AndroidManifest.xml

<activity
         android:name="com.google.zxing.client.android.CaptureActivity"
         android:configChanges="orientation|keyboardHidden"
         android:screenOrientation="landscape"
         android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
         android:windowSoftInputMode="stateAlwaysHidden" >
         <intent-filter>
             <action android:name="com.google.zxing.client.android.SCAN" />
             <category android:name="android.intent.category.DEFAULT" />
         </intent-filter>
     </activity>

Hope this help!.

참고URL : https://stackoverflow.com/questions/18543668/integrate-zxing-in-android-studio

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현재글Android Studio에 ZXing 통합

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