Change Listview Row Background Based On A Choice From Other Activity:

Following my privious qustion that you can see here: How to create custom listview for android with margins between 2 elements? I have made some progress due to the help I recived

Solution 1:

You can return some data from you activity to your parent activity

( How to return a result (startActivityForResult) from a TabHost Activity? )

You can return what color you've choosen and regarding this data you can do whatever you want.