666 lines
22 KiB
Java
666 lines
22 KiB
Java
/*
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* Copyright (C) 2018 Jenly Yu
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.king.zxing.util;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.text.TextPaint;
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import android.text.TextUtils;
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import androidx.annotation.ColorInt;
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import androidx.annotation.FloatRange;
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import androidx.annotation.NonNull;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.BinaryBitmap;
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import com.google.zxing.DecodeHintType;
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import com.google.zxing.EncodeHintType;
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import com.google.zxing.LuminanceSource;
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import com.google.zxing.MultiFormatReader;
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import com.google.zxing.MultiFormatWriter;
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import com.google.zxing.RGBLuminanceSource;
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import com.google.zxing.Result;
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import com.google.zxing.WriterException;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.common.GlobalHistogramBinarizer;
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import com.google.zxing.common.HybridBinarizer;
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import com.google.zxing.qrcode.QRCodeWriter;
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import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
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import com.king.zxing.DecodeFormatManager;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* @author Jenly <a href="mailto:jenly1314@gmail.com">Jenly</a>
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*/
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public final class CodeUtils {
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public static final int DEFAULT_REQ_WIDTH = 480;
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public static final int DEFAULT_REQ_HEIGHT = 640;
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private CodeUtils(){
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throw new AssertionError();
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}
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/**
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* 生成二维码
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* @param content 二维码的内容
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* @param heightPix 二维码的高
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* @return
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*/
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public static Bitmap createQRCode(String content, int heightPix) {
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return createQRCode(content,heightPix,null);
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}
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/**
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* 生成二维码
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* @param content 二维码的内容
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* @param heightPix 二维码的高
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* @param codeColor 二维码的颜色
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* @return
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*/
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public static Bitmap createQRCode(String content, int heightPix,int codeColor) {
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return createQRCode(content,heightPix,null,codeColor);
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}
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/**
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* 生成我二维码
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* @param content 二维码的内容
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* @param heightPix 二维码的高
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* @param logo logo大小默认占二维码的20%
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* @return
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*/
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public static Bitmap createQRCode(String content, int heightPix, Bitmap logo) {
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return createQRCode(content,heightPix,logo,Color.BLACK);
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}
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/**
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* 生成我二维码
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* @param content 二维码的内容
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* @param heightPix 二维码的高
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* @param logo logo大小默认占二维码的20%
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* @param codeColor 二维码的颜色
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* @return
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*/
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public static Bitmap createQRCode(String content, int heightPix, Bitmap logo,int codeColor) {
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return createQRCode(content,heightPix,logo,0.2f,codeColor);
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}
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/**
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* 生成二维码
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* @param content 二维码的内容
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* @param heightPix 二维码的高
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* @param logo 二维码中间的logo
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* @param ratio logo所占比例 因为二维码的最大容错率为30%，所以建议ratio的范围小于0.3
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* @return
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*/
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public static Bitmap createQRCode(String content, int heightPix, Bitmap logo,@FloatRange(from = 0.0f,to = 1.0f)float ratio) {
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//配置参数
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Map<EncodeHintType, Object> hints = new HashMap<>();
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hints.put( EncodeHintType.CHARACTER_SET, "utf-8");
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//容错级别
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
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//设置空白边距的宽度
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hints.put(EncodeHintType.MARGIN, 1); //default is 4
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return createQRCode(content,heightPix,logo,ratio,hints);
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}
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/**
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* 生成二维码
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* @param content 二维码的内容
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* @param heightPix 二维码的高
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* @param logo 二维码中间的logo
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* @param ratio logo所占比例 因为二维码的最大容错率为30%，所以建议ratio的范围小于0.3
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* @param codeColor 二维码的颜色
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* @return
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*/
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public static Bitmap createQRCode(String content, int heightPix, Bitmap logo,@FloatRange(from = 0.0f,to = 1.0f)float ratio,int codeColor) {
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//配置参数
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Map<EncodeHintType, Object> hints = new HashMap<>();
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hints.put( EncodeHintType.CHARACTER_SET, "utf-8");
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//容错级别
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
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//设置空白边距的宽度
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hints.put(EncodeHintType.MARGIN, 1); //default is 1
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return createQRCode(content,heightPix,logo,ratio,hints,codeColor);
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}
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public static Bitmap createQRCode(String content, int heightPix, Bitmap logo,@FloatRange(from = 0.0f,to = 1.0f)float ratio,Map<EncodeHintType,?> hints) {
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return createQRCode(content,heightPix,logo,ratio,hints,Color.BLACK);
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}
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/**
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* 生成二维码
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* @param content 二维码的内容
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* @param heightPix 二维码的高
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* @param logo 二维码中间的logo
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* @param ratio logo所占比例 因为二维码的最大容错率为30%，所以建议ratio的范围小于0.3
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* @param hints
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* @param codeColor 二维码的颜色
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* @return
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*/
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public static Bitmap createQRCode(String content, int heightPix, Bitmap logo,@FloatRange(from = 0.0f,to = 1.0f)float ratio,Map<EncodeHintType,?> hints,int codeColor) {
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try {
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// 图像数据转换，使用了矩阵转换
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BitMatrix bitMatrix = new QRCodeWriter().encode(content, BarcodeFormat.QR_CODE, heightPix, heightPix, hints);
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int[] pixels = new int[heightPix * heightPix];
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// 下面这里按照二维码的算法，逐个生成二维码的图片，
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// 两个for循环是图片横列扫描的结果
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for (int y = 0; y < heightPix; y++) {
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for (int x = 0; x < heightPix; x++) {
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if (bitMatrix.get(x, y)) {
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pixels[y * heightPix + x] = codeColor;
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} else {
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pixels[y * heightPix + x] = Color.WHITE;
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}
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}
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}
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// 生成二维码图片的格式
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Bitmap bitmap = Bitmap.createBitmap(heightPix, heightPix, Bitmap.Config.ARGB_8888);
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bitmap.setPixels(pixels, 0, heightPix, 0, 0, heightPix, heightPix);
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if (logo != null) {
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bitmap = addLogo(bitmap, logo,ratio);
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}
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return bitmap;
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} catch (Exception e) {
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LogUtils.w(e.getMessage());
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}
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return null;
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}
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/**
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* 在二维码中间添加Logo图案
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* @param src
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* @param logo
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* @param ratio logo所占比例 因为二维码的最大容错率为30%，所以建议ratio的范围小于0.3
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* @return
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*/
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private static Bitmap addLogo(Bitmap src, Bitmap logo,@FloatRange(from = 0.0f,to = 1.0f) float ratio) {
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if (src == null) {
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return null;
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}
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if (logo == null) {
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return src;
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}
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//获取图片的宽高
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int srcWidth = src.getWidth();
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int srcHeight = src.getHeight();
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int logoWidth = logo.getWidth();
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int logoHeight = logo.getHeight();
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if (srcWidth == 0 || srcHeight == 0) {
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return null;
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}
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if (logoWidth == 0 || logoHeight == 0) {
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return src;
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}
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//logo大小为二维码整体大小
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float scaleFactor = srcWidth * ratio / logoWidth;
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Bitmap bitmap;
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try {
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bitmap = Bitmap.createBitmap(srcWidth, srcHeight, Bitmap.Config.ARGB_8888);
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Canvas canvas = new Canvas(bitmap);
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canvas.drawBitmap(src, 0, 0, null);
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canvas.scale(scaleFactor, scaleFactor, srcWidth / 2, srcHeight / 2);
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canvas.drawBitmap(logo, (srcWidth - logoWidth) / 2, (srcHeight - logoHeight) / 2, null);
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canvas.save();
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canvas.restore();
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} catch (Exception e) {
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bitmap = null;
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LogUtils.w(e.getMessage());
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}
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return bitmap;
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}
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/**
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* 解析二维码图片
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* @param bitmapPath 需要解析的图片路径
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* @return
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*/
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public static String parseQRCode(String bitmapPath){
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Result result = parseQRCodeResult(bitmapPath);
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if(result != null){
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return result.getText();
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}
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return null;
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}
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/**
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* 解析二维码图片
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* @param bitmapPath 需要解析的图片路径
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* @return
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*/
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public static Result parseQRCodeResult(String bitmapPath){
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return parseQRCodeResult(bitmapPath,DEFAULT_REQ_WIDTH,DEFAULT_REQ_HEIGHT);
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}
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/**
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* 解析二维码图片
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* @param bitmapPath 需要解析的图片路径
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* @param reqWidth 请求目标宽度，如果实际图片宽度大于此值，会自动进行压缩处理，当 reqWidth 和 reqHeight都小于或等于0时，则不进行压缩处理
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* @param reqHeight 请求目标高度，如果实际图片高度大于此值，会自动进行压缩处理，当 reqWidth 和 reqHeight都小于或等于0时，则不进行压缩处理
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* @return
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*/
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public static Result parseQRCodeResult(String bitmapPath,int reqWidth,int reqHeight){
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return parseCodeResult(bitmapPath,reqWidth,reqHeight, DecodeFormatManager.QR_CODE_HINTS);
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}
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/**
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* 解析一维码/二维码图片
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* @param bitmapPath 需要解析的图片路径
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* @return
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*/
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public static String parseCode(String bitmapPath){
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return parseCode(bitmapPath, DecodeFormatManager.ALL_HINTS);
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}
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/**
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* 解析一维码/二维码图片
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* @param bitmapPath 需要解析的图片路径
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* @param hints 解析编码类型
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* @return
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*/
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public static String parseCode(String bitmapPath, Map<DecodeHintType,Object> hints){
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Result result = parseCodeResult(bitmapPath,hints);
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if(result != null){
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return result.getText();
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}
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return null;
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}
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/**
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* 解析二维码图片
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* @param bitmap 解析的图片
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* @return
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*/
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public static String parseQRCode(Bitmap bitmap){
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return parseCode(bitmap,DecodeFormatManager.QR_CODE_HINTS);
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}
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/**
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* 解析一维码/二维码图片
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* @param bitmap 解析的图片
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* @return
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*/
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public static String parseCode(Bitmap bitmap){
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return parseCode(bitmap,DecodeFormatManager.ALL_HINTS);
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}
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/**
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* 解析一维码/二维码图片
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* @param bitmap 解析的图片
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* @param hints 解析编码类型
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* @return
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*/
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public static String parseCode(Bitmap bitmap,Map<DecodeHintType,Object> hints){
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Result result = parseCodeResult(bitmap,hints);
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if(result != null){
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return result.getText();
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}
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return null;
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}
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/**
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* 解析一维码/二维码图片
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* @param bitmapPath
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* @param hints 解析编码类型
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* @return
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*/
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public static Result parseCodeResult(String bitmapPath, Map<DecodeHintType,Object> hints){
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return parseCodeResult(bitmapPath,DEFAULT_REQ_WIDTH,DEFAULT_REQ_HEIGHT,hints);
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}
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/**
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* 解析一维码/二维码图片
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* @param bitmapPath 需要解析的图片路径
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* @param reqWidth 请求目标宽度，如果实际图片宽度大于此值，会自动进行压缩处理，当 reqWidth 和 reqHeight都小于或等于0时，则不进行压缩处理
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* @param reqHeight 请求目标高度，如果实际图片高度大于此值，会自动进行压缩处理，当 reqWidth 和 reqHeight都小于或等于0时，则不进行压缩处理
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* @param hints 解析编码类型
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* @return
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*/
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public static Result parseCodeResult(String bitmapPath,int reqWidth,int reqHeight, Map<DecodeHintType,Object> hints){
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return parseCodeResult(compressBitmap(bitmapPath,reqWidth,reqHeight),hints);
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}
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/**
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* 解析一维码/二维码图片
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* @param bitmap 解析的图片
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* @return
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*/
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public static Result parseCodeResult(Bitmap bitmap){
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return parseCodeResult(getRGBLuminanceSource(bitmap),DecodeFormatManager.ALL_HINTS);
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}
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/**
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* 解析一维码/二维码图片
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* @param bitmap 解析的图片
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* @param hints 解析编码类型
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* @return
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*/
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public static Result parseCodeResult(Bitmap bitmap,Map<DecodeHintType,Object> hints){
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return parseCodeResult(getRGBLuminanceSource(bitmap),hints);
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}
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/**
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* 解析一维码/二维码图片
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* @param source
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* @param hints
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* @return
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*/
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public static Result parseCodeResult(LuminanceSource source, Map<DecodeHintType,Object> hints){
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Result result = null;
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MultiFormatReader reader = new MultiFormatReader();
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try{
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reader.setHints(hints);
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if (source != null) {
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result = decodeInternal(reader,source);
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if(result == null){
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result = decodeInternal(reader,source.invert());
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}
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if(result == null && source.isRotateSupported()){
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result = decodeInternal(reader,source.rotateCounterClockwise());
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}
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}
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}catch (Exception e){
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LogUtils.w(e.getMessage());
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}finally {
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reader.reset();
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}
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return result;
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}
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private static Result decodeInternal(MultiFormatReader reader,LuminanceSource source){
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Result result = null;
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try{
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try{
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//采用HybridBinarizer解析
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result = reader.decodeWithState(new BinaryBitmap(new HybridBinarizer(source)));
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}catch (Exception e){
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}
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if(result == null){
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//如果没有解析成功，再采用GlobalHistogramBinarizer解析一次
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result = reader.decodeWithState(new BinaryBitmap(new GlobalHistogramBinarizer(source)));
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}
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}catch (Exception e){
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}
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return result;
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}
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/**
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* 压缩图片
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* @param path
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* @return
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*/
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private static Bitmap compressBitmap(String path,int reqWidth,int reqHeight){
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if(reqWidth > 0 && reqHeight > 0){//都大于进行判断是否压缩
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BitmapFactory.Options newOpts = new BitmapFactory.Options();
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// 开始读入图片，此时把options.inJustDecodeBounds 设回true了
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newOpts.inJustDecodeBounds = true;//获取原始图片大小
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BitmapFactory.decodeFile(path, newOpts);// 此时返回bm为空
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float width = newOpts.outWidth;
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float height = newOpts.outHeight;
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// 缩放比，由于是固定比例缩放，只用高或者宽其中一个数据进行计算即可
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int wSize = 1;// wSize=1表示不缩放
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if (width > reqWidth) {// 如果宽度大的话根据宽度固定大小缩放
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wSize = (int) (width / reqWidth);
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}
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int hSize = 1;// wSize=1表示不缩放
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if (height > reqHeight) {// 如果高度高的话根据宽度固定大小缩放
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hSize = (int) (height / reqHeight);
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}
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int size = Math.max(wSize,hSize);
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if (size <= 0)
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size = 1;
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newOpts.inSampleSize = size;// 设置缩放比例
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// 重新读入图片，注意此时已经把options.inJustDecodeBounds 设回false了
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newOpts.inJustDecodeBounds = false;
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return BitmapFactory.decodeFile(path, newOpts);
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}
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return BitmapFactory.decodeFile(path);
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}
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/**
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* 获取RGBLuminanceSource
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* @param bitmap
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* @return
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*/
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private static RGBLuminanceSource getRGBLuminanceSource(@NonNull Bitmap bitmap){
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int width = bitmap.getWidth();
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int height = bitmap.getHeight();
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int[] pixels = new int[width * height];
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bitmap.getPixels(pixels, 0, bitmap.getWidth(), 0, 0, bitmap.getWidth(), bitmap.getHeight());
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return new RGBLuminanceSource(width, height, pixels);
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}
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/**
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* 生成条形码
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* @param content
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* @param desiredWidth
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||
* @param desiredHeight
|
||
* @return
|
||
*/
|
||
public static Bitmap createBarCode(String content, int desiredWidth, int desiredHeight) {
|
||
return createBarCode(content,BarcodeFormat.CODE_128,desiredWidth,desiredHeight,null);
|
||
}
|
||
|
||
/**
|
||
* 生成条形码
|
||
* @param content
|
||
* @param format
|
||
* @param desiredWidth
|
||
* @param desiredHeight
|
||
* @return
|
||
*/
|
||
public static Bitmap createBarCode(String content,BarcodeFormat format, int desiredWidth, int desiredHeight) {
|
||
return createBarCode(content,format,desiredWidth,desiredHeight,null);
|
||
}
|
||
|
||
public static Bitmap createBarCode(String content, int desiredWidth, int desiredHeight, boolean isShowText) {
|
||
return createBarCode(content,BarcodeFormat.CODE_128,desiredWidth,desiredHeight,null,isShowText,40,Color.BLACK);
|
||
}
|
||
|
||
/**
|
||
* 生成条形码
|
||
* @param content
|
||
* @param desiredWidth
|
||
* @param desiredHeight
|
||
* @param isShowText
|
||
* @param codeColor
|
||
* @return
|
||
*/
|
||
public static Bitmap createBarCode(String content, int desiredWidth, int desiredHeight, boolean isShowText,@ColorInt int codeColor) {
|
||
return createBarCode(content,BarcodeFormat.CODE_128,desiredWidth,desiredHeight,null,isShowText,40,codeColor);
|
||
}
|
||
|
||
/**
|
||
* 生成条形码
|
||
* @param content
|
||
* @param format
|
||
* @param desiredWidth
|
||
* @param desiredHeight
|
||
* @param hints
|
||
* @return
|
||
*/
|
||
public static Bitmap createBarCode(String content, BarcodeFormat format, int desiredWidth, int desiredHeight, Map<EncodeHintType,?> hints) {
|
||
return createBarCode(content,format,desiredWidth,desiredHeight,hints,false,40,Color.BLACK);
|
||
}
|
||
|
||
/**
|
||
* 生成条形码
|
||
* @param content
|
||
* @param format
|
||
* @param desiredWidth
|
||
* @param desiredHeight
|
||
* @param hints
|
||
* @param isShowText
|
||
* @return
|
||
*/
|
||
public static Bitmap createBarCode(String content, BarcodeFormat format, int desiredWidth, int desiredHeight, Map<EncodeHintType,?> hints, boolean isShowText) {
|
||
return createBarCode(content,format,desiredWidth,desiredHeight,hints,isShowText,40,Color.BLACK);
|
||
}
|
||
|
||
/**
|
||
* 生成条形码
|
||
* @param content
|
||
* @param format
|
||
* @param desiredWidth
|
||
* @param desiredHeight
|
||
* @param isShowText
|
||
* @param codeColor
|
||
* @return
|
||
*/
|
||
public static Bitmap createBarCode(String content, BarcodeFormat format, int desiredWidth, int desiredHeight, boolean isShowText,@ColorInt int codeColor) {
|
||
return createBarCode(content,format,desiredWidth,desiredHeight,null,isShowText,40,codeColor);
|
||
}
|
||
|
||
/**
|
||
* 生成条形码
|
||
* @param content
|
||
* @param format
|
||
* @param desiredWidth
|
||
* @param desiredHeight
|
||
* @param hints
|
||
* @param isShowText
|
||
* @return
|
||
*/
|
||
public static Bitmap createBarCode(String content, BarcodeFormat format, int desiredWidth, int desiredHeight, Map<EncodeHintType,?> hints, boolean isShowText,@ColorInt int codeColor) {
|
||
return createBarCode(content,format,desiredWidth,desiredHeight,hints,isShowText,40,codeColor);
|
||
}
|
||
|
||
/**
|
||
* 生成条形码
|
||
* @param content
|
||
* @param format
|
||
* @param desiredWidth
|
||
* @param desiredHeight
|
||
* @param hints
|
||
* @param isShowText
|
||
* @param textSize
|
||
* @param codeColor
|
||
* @return
|
||
*/
|
||
public static Bitmap createBarCode(String content,BarcodeFormat format, int desiredWidth, int desiredHeight,Map<EncodeHintType,?> hints,boolean isShowText,int textSize,@ColorInt int codeColor) {
|
||
if(TextUtils.isEmpty(content)){
|
||
return null;
|
||
}
|
||
final int WHITE = Color.WHITE;
|
||
final int BLACK = codeColor;
|
||
|
||
MultiFormatWriter writer = new MultiFormatWriter();
|
||
try {
|
||
BitMatrix result = writer.encode(content, format, desiredWidth,
|
||
desiredHeight, hints);
|
||
int width = result.getWidth();
|
||
int height = result.getHeight();
|
||
int[] pixels = new int[width * height];
|
||
// All are 0, or black, by default
|
||
for (int y = 0; y < height; y++) {
|
||
int offset = y * width;
|
||
for (int x = 0; x < width; x++) {
|
||
pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
|
||
}
|
||
}
|
||
|
||
Bitmap bitmap = Bitmap.createBitmap(width, height,
|
||
Bitmap.Config.ARGB_8888);
|
||
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
|
||
if(isShowText){
|
||
return addCode(bitmap,content,textSize,codeColor,textSize/2);
|
||
}
|
||
return bitmap;
|
||
} catch (WriterException e) {
|
||
LogUtils.w(e.getMessage());
|
||
}
|
||
return null;
|
||
}
|
||
|
||
/**
|
||
* 条形码下面添加文本信息
|
||
* @param src
|
||
* @param code
|
||
* @param textSize
|
||
* @param textColor
|
||
* @return
|
||
*/
|
||
private static Bitmap addCode(Bitmap src, String code, int textSize, @ColorInt int textColor, int offset) {
|
||
if (src == null) {
|
||
return null;
|
||
}
|
||
|
||
if (TextUtils.isEmpty(code)) {
|
||
return src;
|
||
}
|
||
|
||
//获取图片的宽高
|
||
int srcWidth = src.getWidth();
|
||
int srcHeight = src.getHeight();
|
||
|
||
if (srcWidth <= 0 || srcHeight <= 0) {
|
||
return null;
|
||
}
|
||
|
||
Bitmap bitmap;
|
||
try {
|
||
bitmap = Bitmap.createBitmap(srcWidth, srcHeight + textSize + offset * 2, Bitmap.Config.ARGB_8888);
|
||
Canvas canvas = new Canvas(bitmap);
|
||
canvas.drawBitmap(src, 0, 0, null);
|
||
TextPaint paint = new TextPaint();
|
||
paint.setTextSize(textSize);
|
||
paint.setColor(textColor);
|
||
paint.setTextAlign(Paint.Align.CENTER);
|
||
canvas.drawText(code,srcWidth/2,srcHeight + textSize /2 + offset,paint);
|
||
canvas.save();
|
||
canvas.restore();
|
||
} catch (Exception e) {
|
||
bitmap = null;
|
||
LogUtils.w(e.getMessage());
|
||
}
|
||
|
||
return bitmap;
|
||
}
|
||
|
||
|
||
|
||
} |