package com.zxing.scanner;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.util.AttributeSet;
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import android.view.View;
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import android.widget.RelativeLayout;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.Result;
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import com.google.zxing.ResultPoint;
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import com.zxing.scanner.camera.open.CameraFacing;
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import com.zxing.scanner.common.Scanner;
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/**
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* Created by hupei on 2016/7/1.
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*/
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public class ScannerView extends RelativeLayout {
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private static final String TAG = ScannerView.class.getSimpleName();
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private CameraSurfaceView mSurfaceView;
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private ViewfinderView mViewfinderView;
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private BeepManager mBeepManager;
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private OnScannerCompletionListener mScannerCompletionListener;
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private ScannerOptions mScannerOptions;
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private ScannerOptions.Builder mScannerOptionsBuilder;
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public ScannerView(Context context) {
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this(context, null);
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}
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public ScannerView(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public ScannerView(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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init(context, attrs, defStyle);
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}
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private void init(Context context, AttributeSet attrs, int defStyle) {
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mSurfaceView = new CameraSurfaceView(context, this);
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mSurfaceView.setId(android.R.id.list);
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addView(mSurfaceView);
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mViewfinderView = new ViewfinderView(context, attrs);
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RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(context, attrs);
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layoutParams.addRule(RelativeLayout.ALIGN_TOP, mSurfaceView.getId());
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layoutParams.addRule(RelativeLayout.ALIGN_BOTTOM, mSurfaceView.getId());
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addView(mViewfinderView, layoutParams);
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mScannerOptionsBuilder = new ScannerOptions.Builder();
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mScannerOptions = mScannerOptionsBuilder.build();
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}
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public void onResume() {
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mSurfaceView.onResume(mScannerOptions);
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mViewfinderView.setCameraManager(mSurfaceView.getCameraManager());
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mViewfinderView.setScannerOptions(mScannerOptions);
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mViewfinderView.setVisibility(mScannerOptions.isViewfinderHide() ? View.GONE : View.VISIBLE);
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if (mBeepManager != null) mBeepManager.updatePrefs();
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}
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public void onPause() {
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mSurfaceView.onPause();
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if (mBeepManager != null) mBeepManager.close();
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mViewfinderView.laserLineBitmapRecycle();
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}
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/**
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* A valid barcode has been found, so give an indication of success and show
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* the results.
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*
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* @param rawResult The contents of the barcode.
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* @param scaleFactor amount by which thumbnail was scaled
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* @param barcode A greyscale bitmap of the camera data which was decoded.
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*/
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void handleDecode(Result rawResult, Bitmap barcode, float scaleFactor) {
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//扫描成功
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if (mScannerCompletionListener != null) {
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//转换结果
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mScannerCompletionListener.onScannerCompletion(rawResult, barcode);
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}
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if (mScannerOptions.getMediaResId() != 0) {
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if (mBeepManager == null) {
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mBeepManager = new BeepManager(getContext());
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mBeepManager.setMediaResId(mScannerOptions.getMediaResId());
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}
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mBeepManager.playBeepSoundAndVibrate();
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}
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if (barcode != null && mScannerOptions.isShowQrThumbnail()) {
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mViewfinderView.drawResultBitmap(barcode);
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drawResultPoints(barcode, scaleFactor, rawResult);
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}
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}
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/**
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* Superimpose a line for 1D or dots for 2D to highlight the key features of
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* the barcode.
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*
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* @param barcode A bitmap of the captured image.
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* @param scaleFactor amount by which thumbnail was scaled
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* @param rawResult The decoded results which contains the points to draw.
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*/
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private void drawResultPoints(Bitmap barcode, float scaleFactor, Result rawResult) {
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ResultPoint[] points = rawResult.getResultPoints();
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if (points != null && points.length > 0) {
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Canvas canvas = new Canvas(barcode);
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Paint paint = new Paint();
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paint.setColor(Scanner.color.RESULT_POINTS);
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if (points.length == 2) {
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paint.setStrokeWidth(4.0f);
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drawLine(canvas, paint, points[0], points[1], scaleFactor);
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} else if (points.length == 4
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&& (rawResult.getBarcodeFormat() == BarcodeFormat.UPC_A || rawResult.getBarcodeFormat() == BarcodeFormat.EAN_13)) {
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// Hacky special case -- draw two lines, for the barcode and
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// metadata
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drawLine(canvas, paint, points[0], points[1], scaleFactor);
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drawLine(canvas, paint, points[2], points[3], scaleFactor);
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} else {
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paint.setStrokeWidth(10.0f);
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for (ResultPoint point : points) {
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if (point != null) {
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canvas.drawPoint(scaleFactor * point.getX(), scaleFactor * point.getY(), paint);
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}
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}
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}
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}
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}
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private static void drawLine(Canvas canvas, Paint paint, ResultPoint a, ResultPoint b, float scaleFactor) {
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if (a != null && b != null) {
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canvas.drawLine(scaleFactor * a.getX(), scaleFactor * a.getY(), scaleFactor * b.getX(), scaleFactor * b.getY(), paint);
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}
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}
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/**
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* 设置扫描成功监听器
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*
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* @param listener
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* @return
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*/
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public ScannerView setOnScannerCompletionListener(OnScannerCompletionListener listener) {
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this.mScannerCompletionListener = listener;
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return this;
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}
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public void setScannerOptions(ScannerOptions scannerOptions) {
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this.mScannerOptions = scannerOptions;
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}
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/**
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* 切换闪光灯
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*
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* @param mode true开；false关
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*/
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public ScannerView toggleLight(boolean mode) {
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mSurfaceView.setTorch(mode);
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return this;
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}
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/**
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* 在经过一段延迟后重置相机以进行下一次扫描。 成功扫描过后可调用此方法立刻准备进行下次扫描
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*
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* @param delayMS 毫秒
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*/
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public void restartPreviewAfterDelay(long delayMS) {
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mSurfaceView.restartPreviewAfterDelay(delayMS);
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}
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/**
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* 设置扫描线颜色
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*
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* @param color
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*/
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@Deprecated
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public ScannerView setLaserColor(int color) {
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mScannerOptionsBuilder.setLaserStyle(ScannerOptions.LaserStyle.COLOR_LINE, color);
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return this;
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}
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/**
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* 设置线形扫描线资源
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*
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* @param resId resId
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*/
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@Deprecated
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public ScannerView setLaserLineResId(int resId) {
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mScannerOptionsBuilder.setLaserStyle(ScannerOptions.LaserStyle.RES_LINE, resId);
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return this;
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}
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/**
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* 设置网格扫描线资源
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*
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* @param resId resId
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*/
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@Deprecated
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public ScannerView setLaserGridLineResId(int resId) {
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mScannerOptionsBuilder.setLaserStyle(ScannerOptions.LaserStyle.RES_GRID, resId);
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return this;
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}
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/**
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* 设置扫描线高度
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*
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* @param height dp
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*/
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@Deprecated
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public ScannerView setLaserLineHeight(int height) {
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mScannerOptionsBuilder.setLaserLineHeight(height);
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return this;
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}
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/**
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* 设置扫描框4角颜色
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*
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* @param color
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*/
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@Deprecated
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public ScannerView setLaserFrameBoundColor(int color) {
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mScannerOptionsBuilder.setFrameCornerColor(color);
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return this;
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}
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/**
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* 设置扫描框4角长度
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*
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* @param length dp
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*/
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@Deprecated
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public ScannerView setLaserFrameCornerLength(int length) {
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mScannerOptionsBuilder.setFrameCornerLength(length);
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return this;
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}
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/**
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* 设置扫描框4角宽度
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*
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* @param width dp
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*/
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@Deprecated
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public ScannerView setLaserFrameCornerWidth(int width) {
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mScannerOptionsBuilder.setFrameCornerWidth(width);
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return this;
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}
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/**
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* 设置文字颜色
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*
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* @param color 文字颜色
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*/
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@Deprecated
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public ScannerView setDrawTextColor(int color) {
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mScannerOptionsBuilder.setTipTextColor(color);
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return this;
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}
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/**
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* 设置文字大小
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*
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* @param size 文字大小 sp
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*/
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@Deprecated
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public ScannerView setDrawTextSize(int size) {
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mScannerOptionsBuilder.setTipTextSize(size);
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return this;
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}
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/**
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* 设置文字
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*
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* @param text
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* @param bottom 是否在扫描框下方
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*/
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@Deprecated
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public ScannerView setDrawText(String text, boolean bottom) {
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mScannerOptionsBuilder.setTipText(text);
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mScannerOptionsBuilder.setTipTextToFrameTop(!bottom);
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return this;
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}
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/**
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* 设置文字
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*
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* @param text
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* @param bottom 是否在扫描框下方
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* @param margin 离扫描框间距 dp
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*/
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@Deprecated
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public ScannerView setDrawText(String text, boolean bottom, int margin) {
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mScannerOptionsBuilder.setTipText(text);
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mScannerOptionsBuilder.setTipTextToFrameTop(!bottom);
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mScannerOptionsBuilder.setTipTextToFrameMargin(margin);
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return this;
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}
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/**
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* 设置文字
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*
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* @param text
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* @param size 文字大小 sp
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* @param color 文字颜色
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* @param bottom 是否在扫描框下方
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* @param margin 离扫描框间距 dp
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*/
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@Deprecated
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public ScannerView setDrawText(String text, int size, int color, boolean bottom, int margin) {
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mScannerOptionsBuilder.setTipText(text);
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mScannerOptionsBuilder.setTipTextSize(size);
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mScannerOptionsBuilder.setTipTextColor(color);
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mScannerOptionsBuilder.setTipTextToFrameTop(!bottom);
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mScannerOptionsBuilder.setTipTextToFrameMargin(margin);
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return this;
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}
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/**
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* 设置扫描完成播放声音
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*
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* @param resId
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*/
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@Deprecated
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public ScannerView setMediaResId(int resId) {
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mScannerOptionsBuilder.setMediaResId(resId);
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return this;
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}
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/**
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* 设置扫描框大小
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*
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* @param width dp
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* @param height dp
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*/
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@Deprecated
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public ScannerView setLaserFrameSize(int width, int height) {
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mScannerOptionsBuilder.setFrameSize(width, height);
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return this;
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}
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/**
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* 设置扫描框与屏幕距离
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*
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* @param margin
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*/
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@Deprecated
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public ScannerView setLaserFrameTopMargin(int margin) {
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mScannerOptionsBuilder.setFrameTopMargin(margin);
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return this;
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}
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/**
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* 设置扫描解码类型（二维码、一维码、商品条码）
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*
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* @param scanMode {@linkplain Scanner.ScanMode mode}
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* @return
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*/
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@Deprecated
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public ScannerView setScanMode(String scanMode) {
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mScannerOptionsBuilder.setScanMode(scanMode);
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return this;
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}
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/**
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* 设置扫描解码类型
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*
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* @param barcodeFormat
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* @return
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*/
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@Deprecated
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public ScannerView setScanMode(BarcodeFormat... barcodeFormat) {
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mScannerOptionsBuilder.setScanMode(barcodeFormat);
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return this;
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}
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/**
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* 是否显示扫描结果缩略图
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*
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* @param showResThumbnail
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* @return
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*/
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@Deprecated
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public ScannerView isShowResThumbnail(boolean showResThumbnail) {
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mScannerOptionsBuilder.setCreateQrThumbnail(showResThumbnail);
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return this;
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}
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/**
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* 设置扫描框线移动间距，每毫秒移动 moveSpeed 像素
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*
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* @param moveSpeed px
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* @return
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*/
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@Deprecated
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public ScannerView setLaserMoveSpeed(int moveSpeed) {
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mScannerOptionsBuilder.setLaserMoveSpeed(moveSpeed);
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return this;
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}
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/**
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* 设置扫描摄像头，默认后置
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*
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* @param cameraFacing
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* @return
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*/
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@Deprecated
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public ScannerView setCameraFacing(CameraFacing cameraFacing) {
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mScannerOptionsBuilder.setCameraFacing(cameraFacing);
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return this;
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}
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/**
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* 是否全屏扫描
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*
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* @param scanFullScreen
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* @return
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*/
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@Deprecated
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public ScannerView isScanFullScreen(boolean scanFullScreen) {
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mScannerOptionsBuilder.setScanFullScreen(scanFullScreen);
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return this;
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}
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/**
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* 设置隐藏取景视图，包括文字
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*
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* @param hide
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* @return
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*/
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@Deprecated
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public ScannerView isHideLaserFrame(boolean hide) {
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mScannerOptionsBuilder.setViewfinderHide(hide);
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return this;
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}
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/**
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* 是否扫描反色二维码（黑底白码）
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*
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* @param invertScan
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* @return
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*/
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@Deprecated
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public ScannerView isScanInvert(boolean invertScan) {
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mScannerOptionsBuilder.setScanInvert(invertScan);
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return this;
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}
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void drawViewfinder() {
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mViewfinderView.drawViewfinder();
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}
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}
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