onScroll() issue (executed three times)

Question

In this code snippet, when scrolling comes to the end of list, method Log.d() executed 3 times. Why does it happen and how to detect end of list to execute method only once?

Snippet:

public void onScroll(AbsListView view, int firstVisibleItem,
        int visibleItemCount, int totalItemCount) {
    if (getIntent().getBooleanExtra("isFavorites", false) == false) {
        try {
            if (visibleItemCount > 0 && firstVisibleItem + visibleItemCount == totalItemCount) {
                Log.d(TAG, "Adding to list");

            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

Answer 1

You could implement a boolean variable to ensure execution of the if statement only once.

boolean executed = false;

and

if(visibleItemCount > 0 
    && firstVisibleItem + visibleItemCount == totalItemCount 
    && !executed)
{
    executed = true;
}