Zxing GitHub 地址：
https://github.com/zxing/zxing
Zxing 使用
Zxing 二维码生成工具类
/**
* Created by JerryLiu on 2017/1/22.
*/
public class QRCodeUtil {
//宽度值，影响中间图片大小
private static int IMAGE_HALFWIDTH = 50;
/**
* //生成二维码，默认大小500*500，网址，汉字
* @param text
* @return
*/
public static Bitmap createQRCode(String text) {
return createQRCode(text, 500);
}
/**
* 生成二维码，不带logo
*
* @param text
* @param size
* @return
*/
public static Bitmap createQRCode(String text, int size) {
try {
Hashtable<EncodeHintType, String> hints = new Hashtable<>();
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, size, size, hints);
int[] pixels = new int[size * size];
for (int y = 0; y < size; y++) {
for (int x = 0; x < size; x++) {
if (bitMatrix.get(x, y)) {
pixels[y * size + x] = 0xff000000;
} else {
pixels[y * size + x] = 0xffffffff;
}
}
}
Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
bitmap.setPixels(pixels, 0, size, 0, 0, size, size);
return bitmap;
} catch (WriterException e) {
e.printStackTrace();
return null;
}
}
/**
* 生成默认大小带图片的二维码
* @param text
* @param bitmap
* @return
*/
public static Bitmap createQRCodeWithLogo(String text, Bitmap bitmap) {
return createQRCodeWithLogo(text, 500, bitmap);
}
/**
* 生成带图片的二维码
* @param text 文本,网址
* @param size 图片大小
* @param bitmap 图片
* @return
*/
public static Bitmap createQRCodeWithLogo(String text, int size, Bitmap bitmap) {
try {
IMAGE_HALFWIDTH = size / 10;
Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
BitMatrix bitMatrix = new QRCodeWriter().encode(text, BarcodeFormat.QR_CODE, size, size, hints);
int width = bitMatrix.getWidth();
int height = bitMatrix.getHeight();
int halfW = width / 2;
int halfH = height / 2;
Matrix m = new Matrix();
float sx = (float) 2 * IMAGE_HALFWIDTH / bitmap.getWidth();
float sy = (float) 2 * IMAGE_HALFWIDTH / bitmap.getHeight();
m.setScale(sx, sy);
bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), m, false);
int[] pixels = new int[size * size];
for (int y = 0; y < size; y++) {
for (int x = 0; x < size; x++) {
if (x > halfW - IMAGE_HALFWIDTH && x < halfW + IMAGE_HALFWIDTH &&
y > halfH - IMAGE_HALFWIDTH && y < halfH + IMAGE_HALFWIDTH) {
pixels[y * width + x] = bitmap.getPixel(x - halfW + IMAGE_HALFWIDTH, y - halfH + IMAGE_HALFWIDTH);
} else {
if (bitMatrix.get(x, y)) {
pixels[y * size + x] = 0xff000000;
} else {
pixels[y * size + x] = 0xffffffff;
}
}
}
}
Bitmap bitmap1 = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
bitmap1.setPixels(pixels, 0, size, 0, 0, size, size);
return bitmap1;
} catch (WriterException e) {
e.printStackTrace();
return null;
}
}
}
