如何使用Zxing库生成二维码？

implementation 'com.google.zxing:core:3.4.1'
implementation 'com.google.zxing:android-core:3.4.1'
implementation 'com.google.zxing:android-integration:3.4.1'

import com.google.zxing.BarcodeFormat;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;

public class QRCodeGenerator {

    public static Bitmap generateQRCode(String data, int width, int height) throws WriterException {
        QRCodeWriter writer = new QRCodeWriter();
        BitMatrix matrix = writer.encode(data, BarcodeFormat.QR_CODE, width, height);
        int[] pixels = new int[width * height];
        for (int y = 0; y < height; y++) {
            int offset = y * width;
            for (int x = 0; x < width; x++) {
                pixels[offset + x] = matrix.get(x, y) ? Color.BLACK : Color.WHITE;
            }
        }
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;
    }
}

try {
    Bitmap qrCode = QRCodeGenerator.generateQRCode("Hello, World!", 500, 500);
    // 在UI上显示生成的二维码图片
    imageView.setImageBitmap(qrCode);
} catch (WriterException e) {
    e.printStackTrace();
}