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public Bitmap createCode(String string,Bitmap mBitmap, BarcodeFormat format)
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throws WriterException {
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Matrix m = new Matrix();
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float sx = (float) 2 * IMAGE_HALFWIDTH / mBitmap.getWidth();
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float sy = (float) 2 * IMAGE_HALFWIDTH
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/ mBitmap.getHeight();
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m.setScale(sx, sy);
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mBitmap = Bitmap.createBitmap(mBitmap, 0, 0,
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mBitmap.getWidth(), mBitmap.getHeight(), m, false);
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MultiFormatWriter writer = new MultiFormatWriter();
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Hashtable<EncodeHintType, String> hst = new Hashtable<EncodeHintType, String>();
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hst.put(EncodeHintType.CHARACTER_SET, "UTF-8");
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BitMatrix matrix = writer.encode(string, format, 400, 400, hst);
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int width = matrix.getWidth();
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int height = matrix.getHeight();
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int halfW = width / 2;
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int halfH = height / 2;
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int[] pixels = new int[width * height];
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for (int y = 0; y < height; y++) {
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for (int x = 0; x < width; x++) {
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if (x > halfW - IMAGE_HALFWIDTH && x < halfW + IMAGE_HALFWIDTH
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&& y > halfH - IMAGE_HALFWIDTH
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&& y < halfH + IMAGE_HALFWIDTH) {
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pixels[y * width + x] = mBitmap.getPixel(x - halfW
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+ IMAGE_HALFWIDTH, y - halfH + IMAGE_HALFWIDTH); } else {
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if (matrix.get(x, y)) {
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pixels[y * width + x] = 0xff000000;
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}
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}
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}
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}
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Bitmap bitmap = Bitmap.createBitmap(width, height,
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Bitmap.Config.ARGB_8888);
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bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
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return bitmap;
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}
posted @
2016-02-19 10:27
vegatate
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