Zxing android扫描条形码，onActivityResult不会调用

Question

@Override 
public void onClick(View v) { 
    if (v.getId() == R.id.scan_button) { 
     Log.i("result", "START SCAN"); 
     IntentIntegrator scanIntegrator = new IntentIntegrator(
       BarcodeScan.this); 
     scanIntegrator.initiateScan(); 

    } 
} 

@Override 
public void onActivityResult(int requestCode, int resultCode, Intent intent) { 
    super.startActivityForResult(intent, resultCode); 
    Log.i("result", "Result Out"); 
    if (requestCode == 0) { 
     IntentResult scanningResult = IntentIntegrator.parseActivityResult(
       requestCode, resultCode, intent); 
     if (resultCode == RESULT_OK) { 
      if (scanningResult != null) { 
       String scanContent = scanningResult.getContents(); 
       DatabaseAdapter mDbHelper = new DatabaseAdapter(this); 
       mDbHelper.createDatabase(); 
       mDbHelper.open(); 
       BookController bc = new BookController(mDbHelper.open()); 
       Log.i("result", scanContent); 
       String bookID = bc.getBookIDByBarcode(scanContent); 
       System.out.println(bookID); 
       intent = new Intent(context, ReserveBook.class); 
       intent.putExtra("BookID", bookID); 
       startActivity(intent); 
       this.finish(); 
      } else { 
       Toast toast = Toast.makeText(getApplicationContext(), 
         "No scan data received!", Toast.LENGTH_SHORT); 
       toast.show(); 
      } 
     } else if (resultCode == RESULT_CANCELED) { 
      // Handle cancel 
      Log.i("App", "Scan unsuccessful"); 
     } 
    } 
} 

我正在执行Zxing条码扫描到我的应用程序中，我可以扫描条形码，但扫描后应用程序停止。在LogCat中，开始扫描打印出来。之后，该应用程序关闭。

Answer 1

不要调用super.startActivityForResult（intent，resultCode）;删除这一行。