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Code Issues Projects Releases Wiki Activity

Support hints for a subset of the barcode types.

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This commit is contained in:
plougsgaard 2016-09-15 21:30:00 +02:00
parent 918c00f003
commit 05b5fc727d
4 changed files with 97 additions and 6 deletions
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9
android/src/main/java/com/lwansbrough/RCTCamera/RCTCamera.java
View File

@ -18,6 +18,7 @@ public class RCTCamera {
private final HashMap<Integer, Integer> _cameraTypeToIndex;
private final Map<Number, Camera> _cameras;
private boolean _barcodeScannerEnabled = false;
private List<String> _barCodeTypes = null;
private int _orientation = -1;
private int _actualDeviceOrientation = 0;
private int _adjustedDeviceOrientation = 0;
@ -143,6 +144,14 @@ public class RCTCamera {
_barcodeScannerEnabled = barcodeScannerEnabled;
}
public List<String> getBarCodeTypes() {
return _barCodeTypes;
}
public void setBarCodeTypes(List<String> barCodeTypes) {
_barCodeTypes = barCodeTypes;
}
public int getActualDeviceOrientation() {
return _actualDeviceOrientation;
}

6
android/src/main/java/com/lwansbrough/RCTCamera/RCTCameraView.java
View File

@ -11,6 +11,8 @@ import android.view.ViewGroup;
import android.view.WindowManager;
import android.view.View;
import java.util.List;
public class RCTCameraView extends ViewGroup {
private final OrientationEventListener _orientationListener;
private final Context _context;
@ -109,6 +111,10 @@ public class RCTCameraView extends ViewGroup {
RCTCamera.getInstance().setBarcodeScannerEnabled(barcodeScannerEnabled);
}
public void setBarCodeTypes(List<String> types) {
RCTCamera.getInstance().setBarCodeTypes(types);
}
private boolean setActualDeviceOrientation(Context context) {
int actualDeviceOrientation = getDeviceOrientation(context);
if (_actualDeviceOrientation != actualDeviceOrientation) {

69
android/src/main/java/com/lwansbrough/RCTCamera/RCTCameraViewFinder.java
View File

@ -44,7 +44,7 @@ class RCTCameraViewFinder extends TextureView implements TextureView.SurfaceText
super(context);
this.setSurfaceTextureListener(this);
this._cameraType = type;
this.initBarcodeReader();
this.initBarcodeReader(RCTCamera.getInstance().getBarCodeTypes());
}
@Override
@ -169,14 +169,73 @@ class RCTCameraViewFinder extends TextureView implements TextureView.SurfaceText
}
/**
* Initialize the barcode decoder.
* Parse barcodes as BarcodeFormat constants.
*
* TODO add hints for the `barCodeTypes` prop instead of the hardcoded `EAN_13`
* Supports all iOS codes except [code138, code39mod43, itf14]
*
* Additionally supports [codabar, code128, maxicode, rss14, rssexpanded, upca, upceanextension]
*/
private void initBarcodeReader() {
private BarcodeFormat parseBarCodeString(String c) {
if ("aztec".equals(c)) {
return BarcodeFormat.AZTEC;
} else if ("ean13".equals(c)) {
return BarcodeFormat.EAN_13;
} else if ("ean8".equals(c)) {
return BarcodeFormat.EAN_8;
} else if ("ean8".equals(c)) {
return BarcodeFormat.EAN_8;
} else if ("qr".equals(c)) {
return BarcodeFormat.QR_CODE;
} else if ("ean8".equals(c)) {
return BarcodeFormat.EAN_8;
} else if ("pdf417".equals(c)) {
return BarcodeFormat.PDF_417;
} else if ("upce".equals(c)) {
return BarcodeFormat.UPC_E;
} else if ("datamatrix".equals(c)) {
return BarcodeFormat.DATA_MATRIX;
} else if ("code39".equals(c)) {
return BarcodeFormat.CODE_39;
} else if ("code93".equals(c)) {
return BarcodeFormat.CODE_93;
} else if ("interleaved2of5".equals(c)) {
return BarcodeFormat.ITF;
} else if ("codabar".equals(c)) {
return BarcodeFormat.CODABAR;
} else if ("code128".equals(c)) {
return BarcodeFormat.CODE_128;
} else if ("maxicode".equals(c)) {
return BarcodeFormat.MAXICODE;
} else if ("rss14".equals(c)) {
return BarcodeFormat.RSS_14;
} else if ("rssexpanded".equals(c)) {
return BarcodeFormat.RSS_EXPANDED;
} else if ("upca".equals(c)) {
return BarcodeFormat.UPC_A;
} else if ("upceanextension".equals(c)) {
return BarcodeFormat.UPC_EAN_EXTENSION;
} else {
android.util.Log.v("RCTCamera", "Unsupported code.. [" + c + "]");
return null;
}
}
/**
* Initialize the barcode decoder.
*/
private void initBarcodeReader(List<String> barCodeTypes) {
EnumMap<DecodeHintType, Object> hints = new EnumMap<>(DecodeHintType.class);
EnumSet<BarcodeFormat> decodeFormats = EnumSet.noneOf(BarcodeFormat.class);
decodeFormats.add(BarcodeFormat.EAN_13);
if (barCodeTypes != null) {
for (String code : barCodeTypes) {
BarcodeFormat format = parseBarCodeString(code);
if (format != null) {
decodeFormats.add(format);
}
}
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
_multiFormatReader.setHints(hints);
}

17
android/src/main/java/com/lwansbrough/RCTCamera/RCTCameraViewManager.java
View File

@ -1,9 +1,14 @@
package com.lwansbrough.RCTCamera;
import android.support.annotation.Nullable;
import com.facebook.react.bridge.ReadableArray;
import com.facebook.react.uimanager.*;
import com.facebook.react.uimanager.annotations.ReactProp;
import java.util.List;
import java.util.ArrayList;
public class RCTCameraViewManager extends ViewGroupManager<RCTCameraView> {
private static final String REACT_CLASS = "RCTCamera";
@ -66,4 +71,16 @@ public class RCTCameraViewManager extends ViewGroupManager<RCTCameraView> {
public void setBarcodeScannerEnabled(RCTCameraView view, boolean barcodeScannerEnabled) {
view.setBarcodeScannerEnabled(barcodeScannerEnabled);
}
@ReactProp(name = "barCodeTypes")
public void setBarCodeTypes(RCTCameraView view, ReadableArray barCodeTypes) {
if (barCodeTypes == null) {
return;
}
List<String> result = new ArrayList<String>(barCodeTypes.size());
for (int i = 0; i < barCodeTypes.size(); i++) {
result.add(barCodeTypes.getString(i));
}
view.setBarCodeTypes(result);
}
}