How to link to an image from another layout?

Question

Java

Hello, to replace an image in a layout programmatically, in my case, you need to refer to an image from another layout of another activity. There is: the first activity, which is extended (implements) by the second activity, each activity has its own layout. I need to refer from the first activity to the image located in the layout of the second activity.
How to do this based on the image replacement code below?

ImageView img= (ImageView) findViewById(R.id.image);
img.setImageResource(R.drawable.my_image);