如何使用条码自动识别技术提高该环节的效率或效果_生成条形码工具

第一步

//zing 扫描码 implementation 'com.journeyapps:zxing-android-embedded:3.6.0'

第二步

CustomZxingView 

public class CustomZxingView extends ViewfinderView { public int laserLinePosition = 0; public float[] position = new float[]{0f, 0.5f, 1f}; public int[] colors = new int[]{0xff0699e6, 0xff0699e6, 0xff0699e6}; public LinearGradient linearGradient; public CustomZxingView(Context context, AttributeSet attrs) { super(context, attrs); } /** * 重写draw方法绘制自己的扫描框 * * @param canvas */ @Override public void onDraw(Canvas canvas) { refreshSizes(); if (framingRect == null || previewFramingRect == null) { return; } Rect frame = framingRect; Rect previewFrame = previewFramingRect; int width = canvas.getWidth(); int height = canvas.getHeight(); //绘制4个角 paint.setColor(Color.parseColor("#139D57"));//定义画笔的颜色 canvas.drawRect(frame.left, frame.top, frame.left + 100, frame.top + 10, paint); canvas.drawRect(frame.left, frame.top, frame.left + 10, frame.top + 100, paint); canvas.drawRect(frame.right - 100, frame.top, frame.right, frame.top + 10, paint); canvas.drawRect(frame.right - 10, frame.top, frame.right, frame.top + 100, paint); canvas.drawRect(frame.left, frame.bottom - 10, frame.left + 100, frame.bottom, paint); canvas.drawRect(frame.left, frame.bottom - 100, frame.left + 10, frame.bottom, paint); canvas.drawRect(frame.right - 100, frame.bottom - 10, frame.right, frame.bottom, paint); canvas.drawRect(frame.right - 10, frame.bottom - 100, frame.right, frame.bottom, paint); // Draw the exterior (i.e. outside the framing rect) darkened paint.setColor(resultBitmap != null ? resultColor : maskColor); canvas.drawRect(0, 0, width, frame.top, paint); canvas.drawRect(0, frame.top, frame.left, frame.bottom + 1, paint); canvas.drawRect(frame.right + 1, frame.top, width, frame.bottom + 1, paint); canvas.drawRect(0, frame.bottom + 1, width, height, paint); if (resultBitmap != null) { // Draw the opaque result bitmap over the scanning rectangle paint.setAlpha(CURRENT_POINT_OPACITY); canvas.drawBitmap(resultBitmap, null, frame, paint); } else { int middle = frame.height() / 2 + frame.top; laserLinePosition = laserLinePosition + 5; if (laserLinePosition > frame.height()) { laserLinePosition = 0; } linearGradient = new LinearGradient(frame.left + 1, frame.top + laserLinePosition, frame.right - 1, frame.top + 10 + laserLinePosition, colors, position, Shader.TileMode.CLAMP); // Draw a red "laser scanner" line through the middle to show decoding is active paint.setShader(linearGradient); //绘制扫描线 canvas.drawRect(frame.left + 1, frame.top + laserLinePosition, frame.right - 1, frame.top + 10 + laserLinePosition, paint); paint.setShader(null); float scaleX = frame.width() / (float) previewFrame.width(); float scaleY = frame.height() / (float) previewFrame.height(); List<ResultPoint> currentPossible = possibleResultPoints; List<ResultPoint> currentLast = lastPossibleResultPoints; int frameLeft = frame.left; int frameTop = frame.top; if (currentPossible.isEmpty()) { lastPossibleResultPoints = null; } else { possibleResultPoints = new ArrayList<>(5); lastPossibleResultPoints = currentPossible; paint.setAlpha(CURRENT_POINT_OPACITY); paint.setColor(resultPointColor); for (ResultPoint point : currentPossible) { canvas.drawCircle(frameLeft + (int) (point.getX() * scaleX), frameTop + (int) (point.getY() * scaleY), POINT_SIZE, paint); } } if (currentLast != null) { paint.setAlpha(CURRENT_POINT_OPACITY / 2); paint.setColor(resultPointColor); float radius = POINT_SIZE / 2.0f; for (ResultPoint point : currentLast) { canvas.drawCircle(frameLeft + (int) (point.getX() * scaleX), frameTop + (int) (point.getY() * scaleY), radius, paint); } } postInvalidateDelayed(16, frame.left, frame.top, frame.right, frame.bottom); } } } 

第三部

QrCodeActivity

public class QrCodeActivity extends AppCompatActivity implements DecoratedBarcodeView.TorchListener { private DecoratedBarcodeView decoratedBarcodeView; private CaptureManager captureManager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 5.0以上系统状态栏透明 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { Window window = getWindow(); window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE); window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS); window.setStatusBarColor(Color.TRANSPARENT); } setContentView(R.layout.activity_qr_code); //隐藏底部操作栏 getSupportActionBar().hide(); decoratedBarcodeView=this.findViewById(R.id.decoratedBarcodeView); //重要代码，初始化捕获 captureManager = new CaptureManager(this, decoratedBarcodeView); captureManager.initializeFromIntent(getIntent(), savedInstanceState); captureManager.decode(); decoratedBarcodeView.setTorchListener(this); } @Override public void onTorchOn() { } @Override public void onTorchOff() { } @Override protected void onPause() { super.onPause(); captureManager.onPause(); } @Override protected void onResume() { super.onResume(); captureManager.onResume(); } @Override protected void onDestroy() { super.onDestroy(); captureManager.onDestroy(); } @Override public void onSaveInstanceState(Bundle outState, PersistableBundle outPersistentState) { super.onSaveInstanceState(outState, outPersistentState); captureManager.onSaveInstanceState(outState); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { return decoratedBarcodeView.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event); } } 

activity_qr_code：

<?xml version="1.0" encoding="utf-8"?> <!-- ~ 项目名：店长OS ~ 作者：jonly_w ~ 当前修改时间：2020:04:09 ~ Copyright (c) 2020 西安卓越网络科技有限公司 http://www.cnzhuoyue.com/ ~ --> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".frament.home.utils.QrCodeActivity"> <com.journeyapps.barcodescanner.DecoratedBarcodeView android:id="@+id/decoratedBarcodeView" android:layout_width="match_parent" android:layout_height="match_parent" app:zxing_framing_rect_height="250dp" app:zxing_framing_rect_width="250dp" app:zxing_preview_scaling_strategy="fitXY" app:zxing_scanner_layout="@layout/layout_zxing" app:zxing_use_texture_view="true" /> </LinearLayout>

layout_zxing：

<?xml version="1.0" encoding="utf-8"?> <merge xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"> <com.journeyapps.barcodescanner.BarcodeView android:id="@+id/zxing_barcode_surface" android:layout_width="match_parent" android:layout_height="match_parent" app:zxing_framing_rect_height="300dp" app:zxing_framing_rect_width="300dp" /> <com.zy.app_butlermaeter.frament.home.utils.CustomZxingView android:id="@+id/zxing_viewfinder_view" android:layout_width="match_parent" android:layout_height="match_parent" app:zxing_possible_result_points="#139D57" app:zxing_result_view="@color/zxing_custom_result_view" app:zxing_viewfinder_laser="#fff" app:zxing_viewfinder_mask="#" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="bottom|center_horizontal" android:layout_marginBottom="20dp" android:text="请对准二维码开始扫描" android:textColor="#fff" /> </merge>

在activity 中使用

new IntentIntegrator(this) .setDesiredBarcodeFormats(IntentIntegrator.ALL_CODE_TYPES)// 扫码的类型,可选：一维码，二维码，一/二维码 //.setPrompt("请对准二维码")// 设置提示语 .setCameraId(0)// 选择摄像头,可使用前置或者后置 .setBeepEnabled(true)// 是否开启声音,扫完码之后会"哔"的一声 .setCaptureActivity(QrCodeActivity.class)//自定义扫码界面 .initiateScan();// 初始化扫码

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); //扫码结果 IntentResult intentResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data); if (intentResult != null) { if (intentResult.getContents() == null) { //扫码失败 } else { String result = intentResult.getContents();//返回值 mShowTv.setText("扫码结果：" + result); } }

https://download.csdn.net/download/Jonly_W/