android bitmap拼接

 /**
     * 将bitmap集合上下拼接,纵向(多个)
     * @param bgColor #4088F0
     * @param bitmaps
     * @return
     */
    public static Bitmap drawMultiV(String bgColor,ArrayList<Bitmap> bitmaps) {
        int width = bitmaps.get(0).getWidth();
        int height = bitmaps.get(0).getHeight();
        for (int i = 1;i<bitmaps.size();i++) {
            if (width < bitmaps.get(i).getWidth()) {
                width = bitmaps.get(i).getWidth();
            }
            height = height+bitmaps.get(i).getHeight();
        }
        Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(result);
        if (bgColor!=null && !bgColor.isEmpty())
            canvas.drawColor(Color.parseColor(bgColor));
        Paint paint = new Paint();
        paint.setDither(true);
        canvas.drawBitmap(bitmaps.get(0), 0, 0, paint);
        int h = 0;
        for (int j = 1;j<bitmaps.size();j++) {
            h = bitmaps.get(j).getHeight()+h;
            canvas.drawBitmap(bitmaps.get(j), 0,h, paint);
        }
        return result;
    }

    /**
     * 将bitmap集合上下拼接,横向(多个)
     * @param bgColor #4088F0
     * @param bitmaps
     * @return
     */
    public static Bitmap drawMultiH(String bgColor,ArrayList<Bitmap> bitmaps) {
        int width = bitmaps.get(0).getWidth();
        int height = bitmaps.get(0).getHeight();
        L.d(TAG," drawMultiH w_"+0+" = "+bitmaps.get(0).getWidth()+","+bitmaps.get(0).getHeight());
        L.d(TAG," drawMultiH totalW = "+width);
        for (int i = 1;i<bitmaps.size();i++) {
            if (height < bitmaps.get(i).getHeight()) {
                height = bitmaps.get(i).getHeight();
            }
            width = width+bitmaps.get(i).getWidth();
            L.d(TAG," drawMultiH w_"+i+" = "+bitmaps.get(i).getWidth());
            L.d(TAG," drawMultiH totalW = "+width);
        }
        L.d(TAG," drawMultiH totalW=---------------------------------------------------------");
        Bitmap result = Bitmap.createBitmap(width, height,Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(result);
        if (bgColor!=null && !bgColor.isEmpty())
            canvas.drawColor(Color.parseColor(bgColor));
        Paint paint = new Paint();
        paint.setDither(true);
        canvas.drawBitmap(bitmaps.get(0), 0, 0, paint);
        int w = 0;
        for (int j = 1;j<bitmaps.size();j++) {
            w = bitmaps.get(j).getWidth()+w;
            canvas.drawBitmap(bitmaps.get(j), w,0, paint);
        }
        return result;
    }