1 /**
 2  * 用字符串生成二維碼
 3  * 
 4  * @param str
 5  * @author zhouzhe@lenovo-cw.com
 6  * @return
 7  * @throws WriterException
 8  */ 
 9 public Bitmap Create2DCode(String str) throws WriterException {
10     //  new String(obj.getText().getBytes("ISO-8859-1"),"GBK")
11     // 生成二維矩陣,編碼時指定大小,不要生成了圖片以后再進行縮放,這樣會模糊導致識別失敗
12     BitMatrix matrix = new MultiFormatWriter().encode(str,
13             BarcodeFormat.QR_CODE, 250, 250);
14     int width = matrix.getWidth();
15     int height = matrix.getHeight();
16     // 二維矩陣轉為一維像素數組,也就是一直橫著排了
17     int[] pixels = new int[width * height];
18     for (int y = 0; y < height; y++) {
19         for (int x = 0; x < width; x++) {
20             if (matrix.get(x, y)) {
21                 pixels[y * width + x] = 0xff000000;
22                 }
23             }
24         }
25     Bitmap bitmap = Bitmap.createBitmap(width, height,
26             Bitmap.Config.ARGB_8888);
27     // 通過像素數組生成bitmap,具體參考api
28     bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
29     return bitmap;
30     
31 }

 1 /**
 2  * 用字符串生成二維碼
 3  * 
 4  * @param str
 5  * @author zhouzhe@lenovo-cw.com
 6  * @return
 7  * @throws WriterException
 8  */ 
 9 public Bitmap Create2DCode(String str) throws WriterException {
10     //  new String(obj.getText().getBytes("ISO-8859-1"),"GBK")
11     // 生成二維矩陣,編碼時指定大小,不要生成了圖片以后再進行縮放,這樣會模糊導致識別失敗
12     BitMatrix matrix = new MultiFormatWriter().encode(new String(str.getBytes("UTF-8"),"ISO-8859-1"),
13             BarcodeFormat.QR_CODE, 250, 250);
14     int width = matrix.getWidth();
15     int height = matrix.getHeight();
16     // 二維矩陣轉為一維像素數組,也就是一直橫著排了
17     int[] pixels = new int[width * height];
18     for (int y = 0; y < height; y++) {
19         for (int x = 0; x < width; x++) {
20             if (matrix.get(x, y)) {
21                 pixels[y * width + x] = 0xff000000;
22                 }
23             }
24         }
25     Bitmap bitmap = Bitmap.createBitmap(width, height,
26             Bitmap.Config.ARGB_8888);
27     // 通過像素數組生成bitmap,具體參考api
28     bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
29     return bitmap;
30     
31 }