實現一個QR碼掃描儀，以我的應用程序

我正在使用的Web服務器來存儲用戶和數據的Android應用程序。我已經爲每個使用PHP的用戶生成了一個Qr代碼。我需要掃描該Qr代碼才能讓用戶登錄。我已經試過實現Zxing。實現一個QR碼掃描儀，以我的應用程序

這是我用來調用斑馬線QR碼功能。

btnLogin.setOnClickListener(new View.OnClickListener() { 

     public void onClick(View view) { 

      Intent intent = new Intent("com.google.zxing.client.android.SCAN"); 
      intent.putExtra("SCAN_MODE", "QR_CODE_MODE"); 
      startActivityForResult(intent,0); 


     } 

    });

這是我的清單文件

<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
package="com.dahmani.javagose.cameratest" > 

<uses-feature android:name="android.hardware.Camera" /> 

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> 
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> 
<uses-permission android:name="android.permission.INTERNET" /> 

<application 
    android:name=".app.AppController" 
    android:allowBackup="true" 
    android:icon="@mipmap/ic_launcher" 
    android:label="@string/app_name" 
    android:supportsRtl="true" 
    android:theme="@style/AppTheme" > 
    <meta-data 
     android:name="com.google.android.gms.version" 
     android:value="@integer/google_play_services_version" /> 

    <activity android:name=".LoginActivity" 
     android:launchMode="singleTop" 
     android:windowSoftInputMode="adjustPan" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme.NoActionBar" > 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 

    <activity 
     android:name=".MainActivity" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme.NoActionBar" > 
    </activity> 


    <activity 
     android:name=".PhotoInfoActivity" 
     android:label="@string/title_activity_photo_info" 
     android:theme="@style/AppTheme.NoActionBar" > 
    </activity> 


</application>

，這我build.gradle.app

apply plugin: 'com.android.application' 

android { 
compileSdkVersion 23 
buildToolsVersion "23.0.2" 

defaultConfig { 
    applicationId "com.dahmani.javagose.cameratest" 
    minSdkVersion 9 
    targetSdkVersion 23 
    versionCode 1 
    versionName "1.0" 
} 
buildTypes { 
    debug { 
     debuggable true 
    } 
    release { 
     minifyEnabled false 
     proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
    } 
    } 
} 

dependencies { 
    compile fileTree(dir: 'libs', include: ['*.jar']) 
    testCompile 'junit:junit:4.12' 
    compile 'com.android.support:appcompat-v7:23.1.1' 
    compile 'com.android.support:design:23.1.1' 
    compile 'com.google.android.gms:play-services:8.4.0' 
    compile 'com.mcxiaoke.volley:library-aar:1.0.0' 
    compile 'me.dm7.barcodescanner:zxing:1.8.4' 

}

然而，當我點擊登錄BTN，應用程序崩潰。

，這說明什麼的Android顯示器

03-07 16:10:15.293 18916-18916/? E/AndroidRuntime: FATAL EXCEPTION: main 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime: Process: com.dahmani.javagose.cameratest, PID: 18916 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.google.zxing.client.android.SCAN (has extras) } 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1727) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1511) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.app.Activity.startActivityForResult(Activity.java:3424) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.app.Activity.startActivityForResult(Activity.java:3385) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at com.dahmani.javagose.cameratest.LoginActivity$1.onClick(LoginActivity.java:81) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.view.View.performClick(View.java:4499) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.view.View$PerformClick.run(View.java:18571) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.os.Handler.handleCallback(Handler.java:733) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.os.Handler.dispatchMessage(Handler.java:95) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.os.Looper.loop(Looper.java:136) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at android.app.ActivityThread.main(ActivityThread.java:5021) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at java.lang.reflect.Method.invokeNative(Native Method) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Method.java:515) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:827) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643) 
03-07 16:10:15.293 18916-18916/? E/AndroidRuntime:  at dalvik.system.NativeStart.main(Native Method)

來源

2016-03-07 Walid Benjehd

確定有啥崩潰 – tyczj

你能後的日誌？ – xcesco

@xcesco我已經添加了日誌文件 –