android_两张图片合成一张图片_001

两张图片合成一张图片（竖屏）

public static Bitmap add2Bitmap_port(Bitmap first, Bitmap second) {
    if (first == null || second == null) {
        return null;
    }
    int height = first.getHeight() + second.getHeight();
    int width = Math.max(first.getWidth(), second.getWidth());
    Bitmap result = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas canvas = new Canvas(result);
    canvas.drawBitmap(first, 0, 0, null);
    canvas.drawBitmap(second, 0, first.getHeight(), null);
    return result;
}