java-在Android应用中使用zxing扫描条形码阅读器数据

概述这是我的代码对我不起作用publicvoidonClick(Viewv){Intentintent=newIntent();intent.putExtra("com.google.zxing.client.android.SCAN.SCAN_MODE","QR_CODE_MODE");startActivityForResult(intent

这是我的代码对我不起作用

 public voID onClick(VIEw v) {                Intent intent = new Intent();                intent.putExtra("com.Google.zxing.clIEnt.androID.SCAN.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");            Toast.makeText(getApplicationContext(),"Contents"+contents+"Format"+format,Toast.LENGTH_LONG).show();            tv.setText(contents+""+format);            // Handle successful scan        } else if (resultCode == RESulT_CANCELED) {            // Handle cancel        }    }}

startActivityForResult(intent,0)中的错误；我不知道如何解决此错误,请帮我

解决方法:

您也可以通过扩展CaptureActivity来完成.

 public voID onClick(VIEw v) {   Intent intent=new Intent(A.this,ScannerActivity.class);    startActivity(intent);        }

ScannerActivity：

public class ScannerActivity extends CaptureActivity {/** The barcode format. */String barcodeFormat;/** * Called when the activity is first created. *  * @param savedInstanceState *            the saved instance state */@OverrIDepublic voID onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentVIEw(R.layout.barcode_scan);}/* * (non-Javadoc) *  * @see * com.Google.zxing.clIEnt.androID.CaptureActivity#handleDecode(com.Google * .zxing.Result, androID.graphics.Bitmap) */@OverrIDepublic voID handleDecode(Result rawResult, Bitmap barcode) {    String barcodeType = rawResult.getbarcodeFormat().toString();    String productID = rawResult.getText(); Toast.makeText(getApplicationContext(),"Contents"+productID +"Format"+barcodeType ,Toast.LENGTH_LONG).show();    //handle intent by sending product ID as your wish...}

}

barcode_scan.xml ：(不要忘了包含capture.xml)

 <?xml version="1.0" enCoding="utf-8"?> <linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"  androID:layout_wIDth="fill_parent"  androID:layout_height="fill_parent"   androID:orIEntation="vertical" >    <include layout="@layout/capture"/> </linearLayout>

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