/***
* 生成二维码方法
* @param str 生成内容
* @param widthHeight 宽度和高度
* @return
* @throws WriterException
*/
public static Bitmap Create2DCode(String str,BarcodeFormat barcodeFormat,int widthHeight) throws WriterException {
Hashtable<EncodeHintType, String> hints = new Hashtable<>();
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
//生成二维矩阵,编码时指定大小,不要生成了图片以后再进行缩放,这样会模糊导致识别失败
BitMatrix matrix = new MultiFormatWriter().encode(str, barcodeFormat, widthHeight, widthHeight);
int width = matrix.getWidth();
int height = matrix.getHeight();
//二维矩阵转为一维像素数组,也就是一直横着排了
int[] pixels = new int[width * height];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
if (matrix.get(x, y)) {
pixels[y * width + x] = 0xff000000;
}else{ pixels[y * width + x] = 0xffffffff;
}
}
} Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
//通过像素数组生成bitmap,具体参考api
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
} public static Bitmap creatEAN13(String str,int paramsWidth,int paramsHeight) throws WriterException{
Hashtable<EncodeHintType, String> hints = new Hashtable<>();
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
//生成二维矩阵,编码时指定大小,不要生成了图片以后再进行缩放,这样会模糊导致识别失败
BitMatrix matrix = new MultiFormatWriter().encode(str, BarcodeFormat.EAN_13
, paramsWidth, paramsHeight);
int width = matrix.getWidth();
int height = matrix.getHeight();
//二维矩阵转为一维像素数组,也就是一直横着排了
int[] pixels = new int[width * height];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
if (matrix.get(x, y)) {
pixels[y * width + x] = 0xff000000;
}
}
} Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
//通过像素数组生成bitmap,具体参考api
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
} public static Bitmap creatUPCA(String str,int paramsWidth,int paramsHeight) throws WriterException{
Hashtable<EncodeHintType, String> hints = new Hashtable<>();
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
//生成二维矩阵,编码时指定大小,不要生成了图片以后再进行缩放,这样会模糊导致识别失败
BitMatrix matrix = new MultiFormatWriter().encode(str, BarcodeFormat.UPC_A, paramsWidth, paramsHeight);
int width = matrix.getWidth();
int height = matrix.getHeight();
//二维矩阵转为一维像素数组,也就是一直横着排了
int[] pixels = new int[width * height];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
if (matrix.get(x, y)) {
pixels[y * width + x] = 0xff000000;
}
}
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
//通过像素数组生成bitmap,具体参考api
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
}
导入zxing包
compile 'com.google.zxing:core:3.3.3@jar'