init
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.pdf.PdfRenderer;
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import android.os.ParcelFileDescriptor;
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import android.text.TextUtils;
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import android.util.Log;
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import android.util.Base64;
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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.ChecksumException;
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import com.google.zxing.EncodeHintType;
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import com.google.zxing.FormatException;
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import com.google.zxing.MultiFormatWriter;
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import com.google.zxing.NotFoundException;
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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.CharacterSetECI;
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import com.google.zxing.common.HybridBinarizer;
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import com.google.zxing.pdf417.PDF417Writer;
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import com.google.zxing.pdf417.encoder.Compaction;
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import com.google.zxing.pdf417.encoder.Dimensions;
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import com.google.zxing.pdf417.encoder.PDF417;
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import com.google.zxing.qrcode.QRCodeReader;
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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 java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.HashMap;
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import java.util.Hashtable;
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import java.util.Map;
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/**
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* 二维码生成工具类
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*/
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public class QRCodeGenerator {
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private static final String TAG = "ZxingUtil";
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/**
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* 在二维码中间添加Logo图案
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*/
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private static Bitmap addLogo(Bitmap src,int logoW,int logoH, Bitmap logo) {
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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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logo=resizeBitmap(logo,logoW,logoH);
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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的1/5
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// float scaleFactor = srcWidth * 1.0f / 5 / logoWidth;
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Bitmap bitmap = Bitmap.createBitmap(srcWidth, srcHeight,
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Bitmap.Config.ARGB_8888);
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try {
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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,
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(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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e.getStackTrace();
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}
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return bitmap;
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}
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public static Bitmap generateQRCodeWithLogo(String content, int widthPix,
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int heightPix,int logoW,int logoH, Bitmap logoBm) {
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if (content == null || "".equals(content)) {
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return null;
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}
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Bitmap bitmap = null;
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// 配置参数
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Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
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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, 0); //default is 4
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// 图像数据转换，使用了矩阵转换
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BitMatrix bitMatrix;
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try {
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bitMatrix = new QRCodeWriter().encode(content,
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BarcodeFormat.QR_CODE, widthPix, heightPix, hints);
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int[] pixels = new int[widthPix * 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 < widthPix; x++) {
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if (bitMatrix.get(x, y)) {
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pixels[y * widthPix + x] = 0xff000000;
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} else {
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pixels[y * widthPix + x] = 0xffffffff;
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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，使用ARGB_8888
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bitmap = Bitmap.createBitmap(widthPix, heightPix,
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Bitmap.Config.ARGB_8888);
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bitmap.setPixels(pixels, 0, widthPix, 0, 0, widthPix, heightPix);
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if (logoBm != null) {
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bitmap = addLogo(bitmap, logoW,logoH,logoBm);
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}
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// if(!TextUtils.isEmpty(filePath)){
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// bitmap.compress(Bitmap.CompressFormat.JPEG, 100,
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// new FileOutputStream(filePath));}
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} catch (WriterException e) {
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//
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e.printStackTrace();
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}
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return bitmap;
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}
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public static Bitmap resizeBitmap(Bitmap originalBitmap, int newWidth, int newHeight) {
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// 创建一个新的Bitmap对象，指定缩放后的宽度、高度和配置（这里使用与原Bitmap相同的配置）
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Bitmap resizedBitmap = Bitmap.createScaledBitmap(originalBitmap, newWidth, newHeight, true);
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return resizedBitmap;
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}
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public static String convert(Bitmap bitmap) {
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ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
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// 压缩Bitmap到字节数组中，格式为PNG，质量为100%
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bitmap.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream);
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byte[] byteArray = byteArrayOutputStream.toByteArray();
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// 将字节数组编码为Base64字符串
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String encoded = Base64.encodeToString(byteArray, Base64.DEFAULT);
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return encoded;
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}
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}
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@@ -0,0 +1,7 @@
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public class Test{
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public static String test(){
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return "xtf";
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}
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}
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@@ -0,0 +1,7 @@
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{
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"minSdkVersion": "19",
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"dependencies": [
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"com.google.zxing:core:3.4.1",
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"com.journeyapps:zxing-android-embedded:4.3.0"
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]
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}
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import BitmapFactory from 'android.graphics.BitmapFactory';
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export type QrOpt = {
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content:string,
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logo?:string,
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qrSize?:number,
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logoW?:number,
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logoH?:number,
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marign?:number,
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callback:(data:string)=>void
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}
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export function getQrData (opt:QrOpt):void{
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if(opt.qrSize==null){
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opt.qrSize=300;
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}
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console.log("--------------")
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if(opt.logo==null){
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opt.callback("data:image/jpg;base64,"+QRCodeGenerator.convert(QRCodeGenerator.generateQRCodeWithLogo(opt.content,opt.qrSize!.toInt(),opt.qrSize!.toInt(),(0).toInt(),(0).toInt(),null)));
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}else{
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try{
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var logo= UTSAndroid.getResourcePath(opt.logo!);
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if(opt.logoW==null){
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opt.logoW=50;
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}
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if(opt.logoH==null){
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opt.logoW=50;
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}
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var bitmap= BitmapFactory.decodeFile(logo);
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opt.callback("data:image/jpg;base64,"+QRCodeGenerator.convert(QRCodeGenerator.generateQRCodeWithLogo(opt.content,opt.qrSize!.toInt(),opt.qrSize!.toInt(),opt.logoW!.toInt(),opt.logoH!.toInt(),bitmap)));
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}catch(e:Exception){
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opt.callback("data:image/jpg;base64,"+QRCodeGenerator.convert(QRCodeGenerator.generateQRCodeWithLogo(opt.content,opt.qrSize!.toInt(),opt.qrSize!.toInt(),(0).toInt(),(0).toInt(),null)));
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}
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}
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}
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@@ -0,0 +1,7 @@
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{
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"deploymentTarget": "12"
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// implementation 'com.google.zxing:core:3.4.1'
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// implementation 'com.journeyapps:zxing-android-embedded:4.3.0'
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}
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@@ -0,0 +1,40 @@
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export type QrOpt = {
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content:string,
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logo?:string,
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qrSize?:number,
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logoW?:number,
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logoH?:number,
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marign?:number,
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callback:(data:string)=>void
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}
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export function getQrData (opt:QrOpt):void{
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console.log(opt.content)
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if(opt.qrSize==null){
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opt.qrSize=300;
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}
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if(opt.logo==null){
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var b=QR.createQrCode(opt.content,opt.qrSize!.toInt());
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console.log(b);
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opt.callback("data:image/jpg;base64,"+b)
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//return "data:image/jpg;base64,"+b;
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}else{
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var l=UTSiOS.getResourcePath(opt.logo!)
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if(opt.logoW==null){
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opt.logoW=50;
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}
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if(opt.logoH==null){
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opt.logoH=50;
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}
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var b=QR.createQrCodeWithLogo(opt.content,opt.qrSize!.toInt(),l,opt.logoW!.toInt(),opt.logoH!.toInt());
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console.log(b);
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opt.callback("data:image/jpg;base64,"+b)
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}
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}
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@@ -0,0 +1,92 @@
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import CoreImage
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import UIKit
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import Foundation
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import SwiftUICore
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public class QR{
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static func imageToBase64(_ image: UIImage) -> String {
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if let imageData = image.jpegData(compressionQuality: 1.0) {
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// 使用imageData进行你的操作
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let base64String = imageData.base64EncodedString(options: [])
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return base64String
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}
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return "";
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}
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static func createQrCode(_ data:String,_ size:Int)->String{
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// 使用示例
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var b:CGFloat=CGFloat(size);
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guard let qrCodeImage = QR.generateQRCode(with:data, qrSize: b)
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else{
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return "";
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}
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let q = QR.imageToBase64(qrCodeImage)
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return q
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}
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static func createQrCodeWithLogo(_ data:String,_ size:Int,_ logo: String,_ logoW:Int,_ logoH:Int)->String{
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// 使用示例
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var b:CGFloat=CGFloat(size);
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var w:CGFloat=CGFloat(logoW);
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var h:CGFloat=CGFloat(logoH);
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var logoSize:CGSize=CGSize(width: w, height: h)
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guard let qrCodeImage = QR.generateQRCode(with:data,logoName:logo, logoSize:logoSize, qrSize: b)
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else{
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return "";
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}
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let q = QR.imageToBase64(qrCodeImage)
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return q
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}
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// 生成二维码图像，并可选地添加logo
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static func generateQRCode(with content: String, logoName: String? = nil, logoSize: CGSize = CGSize(width: 50, height: 50), qrSize: CGFloat = 200) -> UIImage? {
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// 1. 生成二维码
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guard let qrFilter = CIFilter(name: "CIQRCodeGenerator") else { return nil }
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let data = content.data(using: .utf8)
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qrFilter.setValue(data, forKey: "inputMessage")
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qrFilter.setValue("H", forKey: "inputCorrectionLevel") // 高纠错级别
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guard let qrImage = qrFilter.outputImage else { return nil }
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// 2. 调整二维码尺寸
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let scaleTransform = CGAffineTransform(scaleX: qrSize / qrImage.extent.size.width, y: qrSize / qrImage.extent.size.height)
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let scaledQrImage = qrImage.transformed(by: scaleTransform)
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// 3. 创建UIImage对象
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guard let qrUIImage:UIImage? = UIImage(ciImage: scaledQrImage) else { return nil }
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||||
|
||||
// if let image: UIImage? = someFunctionThatReturnsUIImage() {
|
||||
// // 这里image已经被解包，并且是非空的
|
||||
// } else {
|
||||
// // 处理image为nil的情况
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||||
// }
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||||
// 4. 添加logo（如果有）
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if let logoName = logoName, let logoImage = UIImage(named: logoName) {
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let logoFrame = CGRect(x: (qrUIImage!.size.width - logoSize.width) / 2,
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y: (qrUIImage!.size.height - logoSize.height) / 2,
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width: logoSize.width,
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||||
height: logoSize.height)
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||||
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||||
UIGraphicsBeginImageContextWithOptions(qrUIImage!.size, false, 0.0)
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qrUIImage?.draw(in: CGRect(origin: .zero, size: qrUIImage!.size))
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logoImage.draw(in: logoFrame)
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||||
let finalImage = UIGraphicsGetImageFromCurrentImageContext()
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||||
UIGraphicsEndImageContext()
|
||||
|
||||
return finalImage
|
||||
}
|
||||
|
||||
// 如果没有logo，直接返回二维码图像
|
||||
return qrUIImage
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
}
|
||||
@@ -0,0 +1,47 @@
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||||
/**
|
||||
* interface.uts
|
||||
* uts插件接口定义文件，按规范定义接口文件可以在HBuilderX中更好的做到语法提示
|
||||
*/
|
||||
|
||||
/**
|
||||
* myApi 异步函数的参数，在type里定义函数需要的参数以及api成功、失败的相关回调函数。
|
||||
*/
|
||||
export type MyApiOptions = {
|
||||
paramA : boolean
|
||||
success ?: (res : MyApiResult) => void
|
||||
fail ?: (res : MyApiFail) => void
|
||||
complete ?: (res : any) => void
|
||||
}
|
||||
|
||||
/**
|
||||
* 函数返回结果
|
||||
* 可以是void, 基本数据类型，自定义type, 或者其他类型。
|
||||
* [可选实现]
|
||||
*/
|
||||
export type MyApiResult = {
|
||||
fieldA : number,
|
||||
fieldB : boolean,
|
||||
fieldC : string
|
||||
}
|
||||
|
||||
/**
|
||||
* 错误码
|
||||
* 根据uni错误码规范要求，建议错误码以90开头，以下是错误码示例：
|
||||
* - 9010001 错误信息1
|
||||
* - 9010002 错误信息2
|
||||
*/
|
||||
export type MyApiErrorCode = 9010001 | 9010002;
|
||||
/**
|
||||
* myApi 的错误回调参数
|
||||
*/
|
||||
export interface MyApiFail extends IUniError {
|
||||
errCode : MyApiErrorCode
|
||||
};
|
||||
|
||||
/* 异步函数定义 */
|
||||
export type MyApi = (options : MyApiOptions) => void
|
||||
|
||||
/* 同步函数定义 */
|
||||
export type MyApiSync = (paramA : boolean) => MyApiResult
|
||||
|
||||
|
||||
@@ -0,0 +1,39 @@
|
||||
/* 此规范为 uni 规范，可以按照自己的需要选择是否实现 */
|
||||
import { MyApiErrorCode, MyApiFail } from "./interface.uts"
|
||||
/**
|
||||
* 错误主题
|
||||
* 注意：错误主题一般为插件名称，每个组件不同，需要使用时请更改。
|
||||
* [可选实现]
|
||||
*/
|
||||
export const UniErrorSubject = 'uts-api';
|
||||
|
||||
|
||||
/**
|
||||
* 错误信息
|
||||
* @UniError
|
||||
* [可选实现]
|
||||
*/
|
||||
export const MyAPIErrors : Map<MyApiErrorCode, string> = new Map([
|
||||
/**
|
||||
* 错误码及对应的错误信息
|
||||
*/
|
||||
[9010001, 'custom error mseeage1'],
|
||||
[9010002, 'custom error mseeage2'],
|
||||
]);
|
||||
|
||||
|
||||
/**
|
||||
* 错误对象实现
|
||||
*/
|
||||
export class MyApiFailImpl extends UniError implements MyApiFail {
|
||||
|
||||
/**
|
||||
* 错误对象构造函数
|
||||
*/
|
||||
constructor(errCode : MyApiErrorCode) {
|
||||
super();
|
||||
this.errSubject = UniErrorSubject;
|
||||
this.errCode = errCode;
|
||||
this.errMsg = MyAPIErrors.get(errCode) ?? "";
|
||||
}
|
||||
}
|
||||
Binary file not shown.
@@ -0,0 +1,97 @@
|
||||
|
||||
import { QRCode } from './qrcode.min.js';
|
||||
|
||||
export type QrOpt = {
|
||||
content:string,
|
||||
logo?:string,
|
||||
qrSize?:number,
|
||||
logoW?:number,
|
||||
logoH?:number,
|
||||
marign?:number,
|
||||
callback:(data:string)=>void
|
||||
}
|
||||
|
||||
export const getQrData = async function (opt:QrOpt){
|
||||
console.log(opt.content)
|
||||
if(opt.qrSize==null){
|
||||
opt.qrSize=300;
|
||||
}
|
||||
|
||||
if(opt.marign==null){
|
||||
opt.marign=1;
|
||||
}
|
||||
// 要生成的二维码内容
|
||||
// var qrContent = "https://www.example.com";
|
||||
|
||||
//使用QRCode.toDataURL()方法生成base64字符串
|
||||
// QRCode.toDataURL(opt.content, {
|
||||
// //errorCorrectionLevel: QRCode.CorrectLevel.H, // 容错级别
|
||||
// margin: 1, // 边距
|
||||
// width: opt.qrSize!, // 二维码宽度
|
||||
// height: opt.qrSize!, // 二维码高度
|
||||
// color: {
|
||||
// dark: "#000000", // 前景色（二维码颜色）
|
||||
// light: "#ffffff" // 背景色（空白区域颜色）
|
||||
// }
|
||||
// }).then(function(base64) {
|
||||
// // 在这里，base64是包含二维码图片的base64字符串
|
||||
// // console.log(base64);
|
||||
// opt.callback(base64);
|
||||
// // return base64;
|
||||
// // 你可以将base64字符串设置为img元素的src属性来显示二维码
|
||||
// // var img = document.createElement('img');
|
||||
// // img.src = base64;
|
||||
// // document.body.appendChild(img);
|
||||
|
||||
// // 你也可以将base64字符串用于其他目的，比如下载或传输
|
||||
// }).catch(function(error) {
|
||||
// console.error("生成二维码时出错:", error);
|
||||
// });
|
||||
|
||||
//return "";
|
||||
|
||||
|
||||
const qrcodeCanvas = document.createElement('canvas');
|
||||
qrcodeCanvas.width = opt.qrSize!;
|
||||
qrcodeCanvas.height = opt.qrSize!;
|
||||
|
||||
// 使用QRCode对象生成二维码
|
||||
await QRCode.toCanvas(qrcodeCanvas, opt.content, { width: opt.qrSize!,height: opt.qrSize!,margin: opt.marign!}, (error) => {
|
||||
if (error) console.error(error);
|
||||
});
|
||||
if(opt.logo==null){
|
||||
opt.callback(qrcodeCanvas.toDataURL('image/png'))
|
||||
return;
|
||||
}
|
||||
|
||||
// 获取logo图片
|
||||
const logoImage = new Image();
|
||||
logoImage.src = opt.logo!; // 替换为你的logo图片路径
|
||||
logoImage.onload = () => {
|
||||
// 创建一个用于合成带有logo的二维码的canvas元素
|
||||
const logoQRCodeCanvas = document.createElement('canvas');
|
||||
logoQRCodeCanvas.width = qrcodeCanvas.width;
|
||||
logoQRCodeCanvas.height = qrcodeCanvas.height;
|
||||
const ctx = logoQRCodeCanvas.getContext('2d');
|
||||
|
||||
// 将基本的二维码绘制到新的canvas上
|
||||
ctx.drawImage(qrcodeCanvas, 0, 0);
|
||||
|
||||
// 计算logo的大小和位置
|
||||
const logoSize = opt.logoW!; // logo的显示大小
|
||||
const logoX = (logoQRCodeCanvas.width - opt.logoW!) / 2;
|
||||
const logoY = (logoQRCodeCanvas.height - opt.logoH!) / 2;
|
||||
|
||||
// 在二维码上绘制logo
|
||||
ctx.drawImage(logoImage, logoX, logoY, logoSize, opt.logoH);
|
||||
|
||||
// 将带有logo的二维码canvas转换为base64图片
|
||||
const base64Image = logoQRCodeCanvas.toDataURL('image/png');
|
||||
|
||||
// 将base64图片存储到组件的数据中
|
||||
// this.qrcodeWithLogo = base64Image;
|
||||
opt.callback(base64Image)
|
||||
};
|
||||
|
||||
|
||||
}
|
||||
+11
File diff suppressed because one or more lines are too long
Reference in New Issue
Block a user