{"id":8395,"date":"2019-07-27T00:03:38","date_gmt":"2019-07-26T15:03:38","guid":{"rendered":"https:\/\/www.gesource.jp\/weblog\/?p=8395"},"modified":"2019-07-27T00:03:38","modified_gmt":"2019-07-26T15:03:38","slug":"android%e3%81%a7zxing%e3%82%92%e4%bd%bf%e3%81%a3%e3%81%a6qr%e3%82%b3%e3%83%bc%e3%83%89%e3%82%92%e8%aa%ad%e3%81%bf%e5%8f%96%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.gesource.jp\/weblog\/?p=8395","title":{"rendered":"Android\u3067ZXing\u3092\u4f7f\u3063\u3066QR\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u53d6\u308b"},"content":{"rendered":"

ZXing Android Embedded<\/a>\u3092\u4f7f\u3063\u3066\u3001QR\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u53d6\u308b\u30a2\u30d7\u30ea\u3092\u4f5c\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3002<\/p>\n

\u8aad\u307f\u53d6\u3063\u305fQR\u30b3\u30fc\u30c9\u3092\u65b9\u6cd5<\/h2>\n

\u8a2d\u5b9a<\/h3>\n

build.gradle\u306b\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n

repositories {\n    jcenter()\n}\n\ndependencies {\n    implementation 'com.journeyapps:zxing-android-embedded:3.6.0'\n    implementation 'com.android.support:appcompat-v7:25.3.1'   \/\/ Minimum 23+ is required\n}\n\nandroid {\n    buildToolsVersion '27.0.3' \/\/ Older versions may give compile errors\n}\n<\/code><\/pre>\n
AndroidManifest.xml\u3092\u7de8\u96c6\u3057\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30a2\u30af\u30bb\u30e9\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u6709\u52b9\u306b\u3057\u307e\u3059\u3002<\/p>\n
<application android:hardwareAccelerated=\"true\" ... >\n<\/code><\/pre>\n
QR\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u53d6\u308b\u753b\u9762\u3092\u958b\u304f<\/h3>\n
activity_main.xml\u306bButton\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002
\n\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u305f\u3089scanBarcode()\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n
<Button\n    android:layout_width=\"wrap_content\"\n    android:layout_height=\"wrap_content\"\n    android:text=\"@string\/scan_barcode\"\n    android:onClick=\"scanBarcode\"\/>\n<\/code><\/pre>\n
\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u305f\u3068\u304d\u3001QR\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u53d6\u308bActivity\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n
public void scanBarcode(View view) {\n    new IntentIntegrator(this).initiateScan();\n}\n<\/code><\/pre>\n
\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001QR\u30b3\u30fc\u30c9\u8aad\u307f\u8fbc\u307f\u753b\u9762\u306e\u7d30\u304b\u3044\u8a2d\u5b9a\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
public void scanBarcode(View view) {\n    new IntentIntegrator(this)\n            \/\/ \u8aad\u307f\u53d6\u3063\u305f\u3068\u304d\u306b\u30d3\u30fc\u30d7\u97f3\u3092\u9cf4\u3089\u3055\u306a\u3044\n            .setBeepEnabled(false)\n            \/\/ \u753b\u9762\u306e\u5411\u304d\u3092\u56fa\u5b9a\u3057\u306a\u3044\n            .setOrientationLocked(true)\n            \/\/ \u8aad\u307f\u53d6\u308b\u30d0\u30fc\u30b3\u30fc\u30c9\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u6307\u5b9a\u3059\u308b\n            .setDesiredBarcodeFormats(IntentIntegrator.QR_CODE)\n            \/\/ \u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u8a2d\u5b9a\u3059\u308b\n            .setCaptureActivity(CustomScannerActivity.class)\n            .initiateScan();\n}\n<\/code><\/pre>\n
\u8aad\u307f\u53d6\u3063\u305fQR\u30b3\u30fc\u30c9\u3092\u53d7\u3051\u53d6\u308b<\/h3>\n
\u8aad\u307f\u53d6\u3063\u305f\u30b3\u30fc\u30c9\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/p>\n
\/\/ Get the results:\n@Override\nprotected void onActivityResult(int requestCode, int resultCode, Intent data) {\n    IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);\n    if(result != null) {\n        if(result.getContents() == null) {\n            Toast.makeText(this, \"Cancelled\", Toast.LENGTH_LONG).show();\n        } else {\n            Toast.makeText(this, \"Scanned: \" + result.getContents(), Toast.LENGTH_LONG).show();\n        }\n    } else {\n        super.onActivityResult(requestCode, resultCode, data);\n    }\n}\n<\/code><\/pre>\n
QR\u30b3\u30fc\u30c9\u8aad\u307f\u8fbc\u307f\u753b\u9762\u3092\u81ea\u4f5c\u3059\u308b<\/h2>\n
QR\u30b3\u30fc\u30c9\u8aad\u307f\u8fbc\u307f\u753b\u9762\u3092\u81ea\u4f5c\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n
\u753b\u9762\u30c7\u30b6\u30a4\u30f3<\/h3>\n
\u30d7\u30ec\u30d3\u30e5\u30fc\u3092\u8868\u793a\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8com.journeyapps.barcodescanner.DecoratedBarcodeView\u3092\u914d\u7f6e\u3057\u307e\u3059\u3002<\/p>\n
\u4f8b)activity_main.xml<\/p>\n
<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<androidx.constraintlayout.widget.ConstraintLayout\n        xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n        xmlns:tools=\"http:\/\/schemas.android.com\/tools\"\n        xmlns:app=\"http:\/\/schemas.android.com\/apk\/res-auto\"\n        android:layout_width=\"match_parent\"\n        android:layout_height=\"match_parent\"\n        tools:context=\".MainActivity\">\n\n    <com.journeyapps.barcodescanner.DecoratedBarcodeView\n            android:id=\"@+id\/barcodeView\"\n            android:layout_width=\"match_parent\"\n            android:layout_height=\"match_parent\"\n            app:zxing_scanner_layout=\"@layout\/custom_barcode_scanner\"\n    \/>\n\n<\/androidx.constraintlayout.widget.ConstraintLayout>\n<\/code><\/pre>\n
DecoratedBarcodeView\u5185\u90e8\u306e\u30c7\u30b6\u30a4\u30f3\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u5834\u5408\u306fapp:zxing_scanner_layout\u306b\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u4f8b)custom_barcode_scanner.xml<\/p>\n
<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<merge xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\">\n\n    <com.journeyapps.barcodescanner.BarcodeView\n            android:layout_width=\"match_parent\"\n            android:layout_height=\"match_parent\"\n            android:id=\"@+id\/zxing_barcode_surface\"\/>\n\n    <com.journeyapps.barcodescanner.ViewfinderView\n            android:layout_width=\"match_parent\"\n            android:layout_height=\"match_parent\"\n            android:id=\"@+id\/zxing_viewfinder_view\"\/>\n\n    <TextView android:id=\"@+id\/zxing_status_view\"\n            android:layout_width=\"wrap_content\"\n            android:layout_height=\"wrap_content\"\n            android:layout_gravity=\"bottom|center_horizontal\"\n            android:background=\"@color\/zxing_transparent\"\n            android:text=\"\u3053\u306e\u30c6\u30ad\u30b9\u30c8\u306fbarcodeView.setStatusText()\u3067\u8a2d\u5b9a\u3067\u304d\u307e\u3059\"\n            android:textColor=\"@color\/zxing_status_text\"\/>\n<\/merge>\n<\/code><\/pre>\n
\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h3>\n
DecoratedBarcodeView\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u8aad\u307f\u8fbc\u3080\u30b3\u30fc\u30c9\u306e\u5f62\u5f0f\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
val formats = listOf(BarcodeFormat.QR_CODE)\nbarcodeView.barcodeView.decoderFactory = DefaultDecoderFactory(formats)\n<\/code><\/pre>\n
\u305d\u306e\u4ed6\u306e\u8a2d\u5b9a\u306fbarcodeView.cameraSettings\u3067\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n
    barcodeView.barcodeView.cameraSettings = CameraSettings()\n<\/code><\/pre>\n
\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u8fbc\u3093\u3060\u3068\u304d\u306b\u5b9f\u884c\u3059\u308b\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
barcodeView.decodeContinuous(callback)\n<\/code><\/pre>\n
\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u8fbc\u3093\u3060\u3068\u304d\u306e\u51e6\u7406\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
val callback = object : BarcodeCallback {\n    override fun barcodeResult(result: BarcodeResult?) {\n        if (result?.text == null || result.text == lastText) {\n            return\n        }\n        lastText = result.text\n        barcodeView.setStatusText(result.text)\n    }\n    override fun possibleResultPoints(resultPoints: MutableList<ResultPoint>?) {\n    }\n}\n<\/code><\/pre>\n
\u4f8b)MainActivity.kt<\/p>\n
class MainActivity : AppCompatActivity() {\n    private var lastText: String = \"\"\n\n    private val callback = object : BarcodeCallback {\n        override fun barcodeResult(result: BarcodeResult?) {\n            if (result?.text == null || result.text == lastText) {\n                return\n            }\n            lastText = result.text\n            barcodeView.setStatusText(result.text)\n        }\n        override fun possibleResultPoints(resultPoints: MutableList<ResultPoint>?) {\n        }\n    }\n\n    override fun onCreate(savedInstanceState: Bundle?) {\n        super.onCreate(savedInstanceState)\n        setContentView(R.layout.activity_main)\n\n        val formats = listOf(BarcodeFormat.QR_CODE)\n        barcodeView.barcodeView.decoderFactory = DefaultDecoderFactory(formats)\n        barcodeView.decodeContinuous(callback)\n    }\n\n    override fun onResume() {\n        super.onResume()\n        barcodeView.resume()\n    }\n\n    override fun onPause() {\n        super.onPause()\n        barcodeView.pause()\n    }\n}\n<\/code><\/pre>\n