Question

第45行显示：

不兼容的类型，必填：com。谷歌。 zxing。共同。位矩阵找到：com。谷歌。 zxing。共同。字节矩阵

我不知道该如何解决。香港专业教育学院尝试了一堆不同的代码片段，但它们最终都遇到相同的问题。

import android.graphics.Bitmap;

import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
import java.util.Hashtable;

import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.*;
import com.google.zxing.qrcode.QRCodeWriter;

public class Test3 {


    public static void syncEncodeQRCode() {
        Charset charset = Charset.forName("UTF-8");
        CharsetEncoder encoder = charset.newEncoder();
        byte[] b = null;
        try {
            // Convert a string to UTF-8 bytes in a ByteBuffer
            ByteBuffer bbuf = encoder.encode(CharBuffer.wrap("utf 8 
            characters - i used hebrew, but you should write some of your own 
            language characters"));
            b = bbuf.array();
        } catch (CharacterCodingException e) {
            System.out.println(e.getMessage());
        }

        String data;
        try {
            data = new String(b, "UTF-8");
            // get a byte matrix for the data
            BitMatrix matrix = null;
            int h = 100;
            int w = 100;
            com.google.zxing.Writer writer = new MultiFormatWriter();
            try {
                Hashtable<EncodeHintType, String> hints = new 
                Hashtable<EncodeHintType, String>(2);
                hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
                matrix = new QRCodeWriter().encode(data, 
                com.google.zxing.BarcodeFormat.QR_CODE, w, h, hints);
            } catch (com.google.zxing.WriterException e) {
                System.out.println(e.getMessage());
            }

            // change this path to match yours (this is my mac home folder, 
            you can use: c:\\qr_png.png if you are on windows)
            String filePath = "/Users/shaybc/Desktop/OutlookQR/qr_png.png";
            File file = new File(filePath);
            try {
                MatrixToImageWriter.writeToFile(matrix, "PNG", file);
                System.out.println("printing to " + file.getAbsolutePath());
            } catch (IOException e) {
                System.out.println(e.getMessage());
            }
        } catch (UnsupportedEncodingException e) {
            System.out.println(e.getMessage());
        }
    }
}

目标是在Android手机上生成QR

QR生成代码； ZXing的位和字节矩阵

0 个答案: