Placing an image in the transparent area of another image android

I am trying to replace transparent area of a Frame Image with another image and i only want to replace that transparent area with my other image. This is what i do getting the transparent pixels from the bitmap of the frame and storing it. But its not working.

 for (int x = 0; x < imgBitmap.getWidth(); x++)
    {
        for (int y = 0; y < imgBitmap.getHeight(); y++)
        {
            if (imgBitmap.getPixel(x, y) == Color.TRANSPARENT)
            {
                bottomX[i] = x;
                bottomY[i] = y;
                break;
            }
        }
    }

Below is the transparent frame i am using.

As i mentioned above i want to fill the transparent area with another image?
Any help or guide will be appreciated Thanks!

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