How to link multiple images in Bitmap or Matrix?

Question

Java

So, let's say I have 5 vector images in xml. I need to: create some kind of object, such as a Bitmap or Matrix, and combine them into a single image. After which I have to display the result in an ImageView.
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I am not familiar with Matrix, and I only wrote a couple of lines with Bitmap, so please write in more detail, if possible)