在不使用意图的情况下实现条形码扫描器时出现问 [英] problem while implementing barcode scanner without using intents

问题描述

我去了这个网站 https://github.com/ journeyapps / zxing-android-embedded [ ^ 并实施了条形码扫描仪。但我扫描后无法获取值



我用来实现扫描仪的代码如下

< pre lang =java> IntentIntegrator integrator = new IntentIntegrator（MainActivity。 this ）;
integrator.setDesiredBarcodeFormats（IntentIntegrator.ALL_CODE_TYPES）;
integrator.setPrompt（ 扫描条形码或QR码）;
integrator.setCameraId（ 0 ）; // 使用设备的特定摄像头
integrator.setBeepEnabled（false）;
integrator.setBarcodeImageEnabled（true）;
// integrator.addExtra（key，value）;
integrator.initiateScan （）;

onActivityResult中的

  @ Override  
  protected   void  onActivityResult（ int  requestCode， int  resultCode，Intent data）{
 IntentResult result = IntentIntegrator.parseActivityResult（requestCode，resultCode，数据）; 
  if （result！= null）{
  if （result.getContents（ ）== null）{
 Toast.makeText（ this ， 已取消，Toast.LENGTH_LONG）。show（）; 
} 其他 {
 Toast.makeText（此， 已扫描： + result.getContents（），Toast.LENGTH_LONG）。show（）; 
} 
} 其他 {
  //  这很重要，否则结果将不会传递给片段 
  super  .onActivityResult（requestCode，resultCode，数据）; 
} 
 
} 

运行应用程序
我收到错误

错误：（ 50 ， 52 ）错误：package com .google.zxing.client.androidlegacy.camera不存在

i已将以下库导入我的gradle文件

编译'  com.google.zxing ：core：3.2.0' 
 compile '  com.journeyapps：zxing-android-embedded ：3.0.3 @aar' 

现在如何获取扫描值？请指导我实现这个

解决方案

以这种方式尝试：

  public   void  onActivityResult（ int  requestCode， int  resultCode，Intent intent）{
  if （requestCode ==  0 ）{
  if （resultCode == RESULT_OK）{
  String 内容= intent.getStringExtra（  SCAN_RESULT）; 
 字符串 format = intent.getStringExtra（  SCAN_RESULT_FORMAT）; 
  //  处理成功扫描 
}  else   if （resultCode == RESULT_CANCELED）{
  //  < span class =code-comment>处理取消 
} 
} 
} 

检查：

将zxing条形码扫描仪集成到您的Android应用程序中 [ ^ ]

将ZXing库直接集成到我的Android应用程序中 [ ^ ]

i went throght this web site https://github.com/journeyapps/zxing-android-embedded[^] and have implemented a barcode scanner. but i am not able to fetch the value after it has been scanned

the code i used to implement the scanner is as follows

IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);
               integrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES);
               integrator.setPrompt("Scan a barcode or QR Code");
               integrator.setCameraId(0);  // Use a specific camera of the device
               integrator.setBeepEnabled(false);
               integrator.setBarcodeImageEnabled(true);
               //integrator.addExtra(key,value);
               integrator.initiateScan();

in onActivityResult

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
        if(result != null) {
            if(result.getContents() == null) {
                Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show();
            } else {
                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);
        }

    }

on running the app i get an error

Error:(50, 52) error: package com.google.zxing.client.androidlegacy.camera does not exist

i have imported the following library into my gradle file

compile 'com.google.zxing:core:3.2.0'
    compile 'com.journeyapps:zxing-android-embedded:3.0.3@aar'

now how do i fetch the scan value? please guide me to achieve this

解决方案

Try in this way:

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
      }
   }
}

Check :
Integrate zxing barcode scanner into your Android app[^]
Integration ZXing library directly into my Android application[^]

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