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Code Issues Projects Releases Packages Wiki Activity Actions 1

Try harder to find QR codes in image files

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And refactor a bit by moving some of the QR scanning related logic to a
separate helper class.
This commit is contained in:
Alexander Bakker 2022-08-07 17:05:08 +02:00
parent 5f12eae678
commit bd3697659f
6 changed files with 184 additions and 82 deletions
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16
app/src/main/java/com/beemdevelopment/aegis/helpers/QrCodeAnalyzer.java
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@ -9,19 +9,11 @@ import androidx.annotation.NonNull;
import androidx.camera.core.ImageAnalysis;
import androidx.camera.core.ImageProxy;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.PlanarYUVLuminanceSource;
import com.google.zxing.Result;
import com.google.zxing.common.HybridBinarizer;
import java.nio.ByteBuffer;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
public class QrCodeAnalyzer implements ImageAnalysis.Analyzer {
private static final String TAG = QrCodeAnalyzer.class.getSimpleName();
@ -59,14 +51,8 @@ public class QrCodeAnalyzer implements ImageAnalysis.Analyzer {
false
);
MultiFormatReader reader = new MultiFormatReader();
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
try {
Map<DecodeHintType, Object> hints = new HashMap<>();
hints.put(DecodeHintType.POSSIBLE_FORMATS, Collections.singletonList(BarcodeFormat.QR_CODE));
hints.put(DecodeHintType.ALSO_INVERTED, true);
Result result = reader.decode(bitmap, hints);
Result result = QrCodeHelper.decodeFromSource(source);
if (_listener != null) {
_listener.onQrCodeDetected(result);
}