我在我的Android应用程序中使用zxing来读取QR_CODE和条形码。我的应用程序无法使用zxing读取CODE_39。我在CaptureActivity OnResume方法中使用以下代码:
Intent intent = getIntent();
String action = intent == null ? null : intent.getAction();
String dataString = intent == null ? null : intent.getDataString();
if (intent != null && action != null) {
if (action.equals(Intents.Scan.ACTION)) {
//Scan the formats the intent requested, and return the
//result
//to the calling activity.
source = Source.NATIVE_APP_INTENT;
decodeFormats = DecodeFormatManager.parseDecodeFormats(intent);
} else if (dataString != null
&& dataString.contains(PRODUCT_SEARCH_URL_PREFIX)
&& dataString.contains(PRODUCT_SEARCH_URL_SUFFIX)) {
// Scan only products and send the result to mobile Product
// Search.
source = Source.PRODUCT_SEARCH_LINK;
sourceUrl = dataString;
decodeFormats = DecodeFormatManager.PRODUCT_FORMATS;
} else if (dataString != null
&& dataString.startsWith(ZXING_URL)) {
// Scan formats requested in query string (all formats if
// none
// specified).
// If a return URL is specified, send the results there.
// Otherwise, handle it ourselves.
source = Source.ZXING_LINK;
sourceUrl = dataString;
Uri inputUri = Uri.parse(sourceUrl);
returnUrlTemplate = inputUri
.getQueryParameter(RETURN_URL_PARAM);
decodeFormats = DecodeFormatManager
.parseDecodeFormats(inputUri);
} else {
// Scan all formats and handle the results ourselves
// (launched
// from Home).
source = Source.NONE;
decodeFormats = null;
}
characterSet = intent
.getStringExtra(Intents.Scan.CHARACTER_SET);
请帮我解决这个问题。提前谢谢。
答案 0 :(得分:0)
如果您使用的是Android Studio,请添加这些依赖项 -
compile 'me.dm7.barcodescanner:zxing:1.8.3'
compile 'com.journeyapps:zxing-android-embedded:3.0.2@aar'
compile 'com.google.zxing:core:3.2.0'
Zxing扫描时自动获取代码类型
integrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES)
这里默认考虑所有类型的代码
如果您想要特定的QR,那么
integrator.setDesiredBarcodeFormats(IntentIntegrator.QR_CODE_TYPES);
使用以下代码 -
import me.dm7.barcodescanner.zxing.ZXingScannerView;
public class YourActivity extends Activity {
//Barcode Scanning
private ZXingScannerView mScannerView;
// This is your click listener
public void checkBarcode(View v) {
try {
IntentIntegrator integrator = new IntentIntegrator(GateEntryActivity.this);
integrator.setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES);
integrator.setPrompt("Scan a barcode");
integrator.setCameraId(0); // Use a specific camera of the device
integrator.setBeepEnabled(false);
integrator.initiateScan();
//start the scanning activity from the com.google.zxing.client.android.SCAN intent
// Programmatically initialize the scanner view
// setContentView(mScannerView);
} catch (ActivityNotFoundException anfe) {
//on catch, show the download dialog
showDialog(GateEntryActivity.this, "No Scanner Found", "Download a scanner code activity?", "Yes", "No").show();
}
}
//alert dialog for downloadDialog
private static AlertDialog showDialog(final Activity act, CharSequence title, CharSequence message, CharSequence buttonYes, CharSequence buttonNo) {
AlertDialog.Builder downloadDialog = new AlertDialog.Builder(act);
downloadDialog.setTitle(title);
downloadDialog.setMessage(message);
downloadDialog.setPositiveButton(buttonYes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {
Uri uri = Uri.parse("market://search?q=pname:" + "com.google.zxing.client.android");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
try {
act.startActivity(intent);
} catch (ActivityNotFoundException anfe) {
}
}
});
downloadDialog.setNegativeButton(buttonNo, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {
}
});
return downloadDialog.show();
}
//on ActivityResult method
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
if (result != null) {
if (result.getContents() == null) {
Log.d("MainActivity", "Cancelled scan");
Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show();
} else {
Log.d("MainActivity", "Scanned");
Toast.makeText(this, "Scanned: " + result.getContents(), Toast.LENGTH_LONG).show();
}
} else {
Log.d("MainActivity", "Weird");
// This is important, otherwise the result will not be passed to the fragment
super.onActivityResult(requestCode, resultCode, data);
}
}
}