Android scans product barcode

Android scans product barcode

The simplest Android barcode scanning function just now can only scan QR codes. If you want to scan a regular product barcode, You need to seat it in the program and modify it a little bit.

Interface changes:

Effect of bar code scanning:

Display scan results (the recognition speed is significantly lower than the QR code ):

Code changes:

Package com. easymorse;

Import Android. App. activity;
Import Android. content. intent;
Import Android. OS. Bundle;
Import Android. View. view;
Import Android. View. View. onclicklistener;
Import Android. widget. Button;
Import Android. widget. textview;

Public class showbarcodeactivity extends activity {

Private button;

Private button button2;

Private textview;

/** Called when the activity is first created .*/
@ Override
Public void oncreate (bundle savedinstancestate ){
Super. oncreate (savedinstancestate );
Setcontentview (R. layout. Main );

This. Button = (button) This. findviewbyid (R. Id. button01 );
This. Button. setonclicklistener (New onclicklistener (){

@ Override
Public void onclick (view v ){
Intent intent = new intent (
"Com. Google. zxing. Client. Android. Scan ");
Intent. putextra ("scan_mode", "qr_code_mode ");
Startactivityforresult (intent, 0 );
}
});

This. button2 = (button) This. findviewbyid (R. Id. button02 );
This. button2.setonclicklistener (New onclicklistener (){

@ Override
Public void onclick (view v ){
Intent intent = new intent (
"Com. Google. zxing. Client. Android. Scan ");
Intent. putextra ("scan_mode", "ean_13 ″);
Startactivityforresult (intent, 0 );
}
});

This. textview = (textview) This. findviewbyid (R. Id. Hello );
}

@ Override
Protected void onactivityresult (INT requestcode, int resultcode, intent data ){
If (requestcode! = 0 ){
Return;
}

This. textview. settext (data. getstringextra ("scan_result "));
}
}

After writing this example, you can see that you do not need to write it now:

Intent. putextra ("scan_mode", "qr_code_mode ");

Zxing's current library can automatically identify which encoding is used. If it is written, it specifies the type rather than the encoding of other types. In fact, the above:

Intent. putextra ("scan_mode", "ean_13 ″);

Incorrect. For specific constant parameters, see:

Http://zxing.org/w/docs/javadoc/constant-values.html

The above content is not modified. The correct source code is shared in the Svn of Google Code. See:

Http://easymorse.googlecode.com/svn/tags/barcode.proto.0.1.0/