How to sum the values ​​of items in a listview and get the sum value in a textview in android studio?

I have a listview with 8 subitems in each item of listview. I have implemented a listview using a custom adapter. there is an increment decrement button for a number in a listview item which when incremented or decremented multiplies its value with all other subitems of that list. I want to get the sum … Read more