1.
// 二维码扫描库
implementation('com.journeyapps:zxing-android-embedded:4.3.0') { transitive = false }
implementation 'com.google.zxing:core:3.3.0'
2.
<com.journeyapps.barcodescanner.DecoratedBarcodeView
android:id="@+id/barcode_scanner"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintVertical_weight="1"
app:zxing_scanner_layout="@layout/custom_barcode_scanner"
app:layout_constraintTop_toTopOf="parent"
/>
3.
barcodeView = findViewById(R.id.barcode_scanner);
Collection<BarcodeFormat> formats = Arrays.asList(BarcodeFormat.QR_CODE, BarcodeFormat.CODE_39);
barcodeView.getBarcodeView().setDecoderFactory(new DefaultDecoderFactory(formats));
barcodeView.initializeFromIntent(getIntent());
CameraSettings cameraSettings = barcodeView.getCameraSettings();
cameraSettings.setRequestedCameraId(0);
barcodeView.setCameraSettings(cameraSettings);
barcodeView.decodeContinuous(callback);
4.
// 扫描结果回调
private BarcodeCallback callback = new BarcodeCallback() {
@Override
public void barcodeResult(BarcodeResult result) {
if(result.getText() == null || result.getText().equals(lastText)) {
// Prevent duplicate scans
return;
}
lastText = result.getText();
// barcodeView.setStatusText(result.getText());
Log.d(TAG, "scan content=" + result.getText());
beepManager.playBeepSoundAndVibrate();
//Added preview of scanned barcode
// ImageView imageView = findViewById(R.id.barcodePreview);
// imageView.setImageBitmap(result.getBitmapWithResultPoints(Color.YELLOW));
handleScanResult(result);
}
@Override
public void possibleResultPoints(List<ResultPoint> resultPoints) {
}
};
5.
@Override
protected void onResume() {
super.onResume();
barcodeView.resume();
}
@Override
protected void onPause() {
super.onPause();
barcodeView.pause();
}
public void pause(View view) {
barcodeView.pause();
}
public void resume(View view) {
barcodeView.resume();
}
public void triggerScan(View view) {
barcodeView.decodeSingle(callback);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
return barcodeView.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event);
}
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