直播软件搭建，生成二维码及添加logo

    @Override<br>    public Bitmap generateBitmap(String content, int width, int height) {<br>        QRCodeWriter qrCodeWriter = new QRCodeWriter();<br>        Map<EncodeHintType, String> hints = new HashMap<>();<br>        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");//默认<br>//        hints.put(EncodeHintType.MARGIN, "1");//无白色边框<br>        try {<br>            BitMatrix encode = qrCodeWriter.encode(content, BarcodeFormat.QR_CODE, width, height, hints);<br>            int[] pixels = new int[width * height];<br>            for (int i = 0; i < height; i++) {<br>                for (int j = 0; j < width; j++) {<br>                    if (encode.get(j, i)) {<br>                        pixels[i * width + j] = 0x00000000;<br>                    } else {<br>                        pixels[i * width + j] = 0xffffffff;<br>                    }<br>                }<br>            }<br>            return Bitmap.createBitmap(pixels, 0, width, width, height, Bitmap.Config.RGB_565);<br>        } catch (WriterException e) {<br>            e.printStackTrace();<br>        }<br>        return null;<br>    }<br> <br>    @Override<br>    public Bitmap addLogo(Bitmap qrBitmap, Bitmap logoBitmap) {<br>        int qrBitmapWidth = qrBitmap.getWidth();<br>        int qrBitmapHeight = qrBitmap.getHeight();<br>        int logoBitmapWidth = logoBitmap.getWidth();<br>        int logoBitmapHeight = logoBitmap.getHeight();<br>        Bitmap blankBitmap = Bitmap.createBitmap(qrBitmapWidth, qrBitmapHeight, Bitmap.Config.ARGB_8888);<br>        Canvas canvas = new Canvas(blankBitmap);<br>        canvas.drawBitmap(qrBitmap, 0, 0, null);<br>        canvas.save(Canvas.ALL_SAVE_FLAG);<br>        float scaleSize = 1.0f;<br>        while ((logoBitmapWidth / scaleSize) > (qrBitmapWidth / 3.5) || (logoBitmapHeight / scaleSize) > (qrBitmapHeight / 3.5)) {<br>            scaleSize *= 2;<br>        }<br>        float sx = 1.0f / scaleSize;<br>        canvas.scale(sx, sx, qrBitmapWidth / 2, qrBitmapHeight / 2);<br>        canvas.drawBitmap(logoBitmap, (qrBitmapWidth - logoBitmapWidth) / 2, (qrBitmapHeight - logoBitmapHeight) / 2, null);<br>        canvas.restore();<br>        return blankBitmap;<br>    }