Method render

app/src/leanback/java/com/fongmi/android/tv/utils/QRCode.java:51–63

(BitMatrix matrix, int foreground, int finderBackground, int quietZone, int finderSize)

    }

    private static Bitmap render(BitMatrix matrix, int foreground, int finderBackground, int quietZone, int finderSize) {
        int width = matrix.getWidth(), height = matrix.getHeight();
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        float moduleSize = finderSize > 0 ? (float) finderSize / FINDER_MODULES : 1;
        int numModules = finderSize > 0 ? Math.round((width - 2f * quietZone) / moduleSize) : 0;
        drawDataModules(canvas, matrix, foreground, quietZone, moduleSize, numModules, width, height);
        if (finderSize <= 0) return bitmap;
        drawFinderPattern(canvas, quietZone, quietZone, finderSize, foreground, finderBackground);
        drawFinderPattern(canvas, width - quietZone - finderSize, quietZone, finderSize, foreground, finderBackground);
        drawFinderPattern(canvas, quietZone, height - quietZone - finderSize, finderSize, foreground, finderBackground);
        return bitmap;
    }

    private static void drawDataModules(Canvas canvas, BitMatrix matrix, int foreground, int quietZone, float moduleSize, int numModules, int width, int height) {
        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);