Android 바코드 스캐너 만들기

1. 프로젝트 생성

compileSdkVersion 27

minSdkVersion 16

targetSdkVersion 16

*해당 SDK 버전은 다르게 설정해도 무방함.

2. 라이브러리 Import

build.gradle 파일에 해당 compile 코드 한줄 추가

compile 'com.journeyapps:zxing-android-embedded:3.5.0'

3. Layout 코드

<com.journeyapps.barcodescanner.DecoratedBarcodeView
    android:id="@+id/dbvBarcode"
    android:layout_width="match_parent"
    android:layout_height="250dp"
    android:layout_centerHorizontal="true"></com.journeyapps.barcodescanner.DecoratedBarcodeView>

4. Activity 코드

private CaptureManager capture;
private DecoratedBarcodeView barcodeScannerView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    barcodeScannerView = (DecoratedBarcodeView) findViewById(R.id.dbvBarcode);

    capture = new CaptureManager(this, barcodeScannerView);
    capture.initializeFromIntent(this.getIntent(), savedInstanceState);
    capture.decode();
    barcodeScannerView.decodeContinuous(new BarcodeCallback() {
        @Override
        public void barcodeResult(BarcodeResult result) {
            readBarcode(result.toString());
        }

        @Override
        public void possibleResultPoints(List<ResultPoint> resultPoints) {
        }
    });
}

@Override
protected void onResume() {
    super.onResume();
    capture.onResume();
}

@Override
protected void onPause() {
    super.onPause();
    capture.onPause();
}

@Override
protected void onDestroy() {
    super.onDestroy();
    capture.onDestroy();
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    capture.onSaveInstanceState(outState);
}

public void readBarcode(String barcode) {
    Toast.makeText(getApplicationContext(), barcode, Toast.LENGTH_LONG).show();
}

5. 실행 화면