When using scrollTo ListView does not refresh, but when manually scrolling it refreshes

Question

I have different colors for different lines in the ListView, by setting the color of textbox depending on the line number (in getView() of Adapter). Now when I manually scroll the ListView upwards the correct color is displayed in the bottom lines that get revealed. But when I use scrollTo, this doesnot happen, all lines revealed have the same color (they are not updated).

Has anybody faced this issue? This seems baffling!

Answer 1

ListView#scrollTo doesn't scroll the list contents. (It's a standard View method, and not specific to lists at all: it scrolls the ListView view itself.)

Instead, try using ListView#setSelectionFromTop(0, int y) to scroll.

API 19+ has a ListView#scrollListBy(int y) method if you're programming for KitKat and up.