How to implement Android listview to locate the last displayed position
Overall idea: When sliding the lictview, record the position of the listview and position it to that position when positioning.
1. Add global variables
private int scrolledX = 0; private int scrolledY = 0;
2. Oncreate() adds scroll event listening
(new OnScrollListener() {
/**
* Called when the scroll state changes
*/
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {
try {
scrolledX = ();
("scroll X", (scrolledX));
scrolledY = (0).getTop();
("scroll Y", (scrolledY));
} catch (Exception e) {
}
}
}
//
});
3. Activity When restarting, restore the original positioning.
public void onBack() {
(scrolledX, scrolledY);
}
protected void onResume() {
// (scrolledX, scrolledY);
onBack();
// initDataFromNet();
isClick = 0;
();
}
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