iOS6 automaticly adds contentInset to UITableView when keyboard shows up? - ios

Question

On iPhone, I found when keyboard shows up, the system will set contentInset of tableView to UIEdgeInsets(0, 0, 216, 0) , because the keyboard height is 216. I think this is convienent when design an app only for the newest iOS, in the past, I have to calculate tableView size when keyboard came up by myself.
But I have to support iOS5, so I wanna know how to disable this automatic "favor" for me ? If I set
self.searchTipsController.tableView.contentInset = UIEdgeInsetsZero; , the scroll indicator will not show. At last I have to detect system version to do handle it separately.
And I want to know from what version this feature begins? 6.0 or 6.1?
- (void) keyboardSizeChange:(NSNotification *)aNotification
{
NSDictionary* d = [aNotification userInfo];
CGRect r = [[d objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
if(r.origin.y<[UIScreen mainScreen].bounds.size.height)
{
CGRect convertRect = [self.view convertRect:r fromView:[UIApplication sharedApplication].keyWindow];
CGRect viewBounds = self.view.bounds;
CGRect tipsFrame = CGRectMake(0, 0, viewBounds.size.width, convertRect.origin.y);
if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(#"6.1"))
{
}else
{
self.searchTipsController.view.frame = tipsFrame;
self.searchTipsController.tableView.contentInset = UIEdgeInsetsZero;
}
}
}
I change my code, when keyboard raises, remove the tableview then add it back, this time it looks right..
- (void) keyboardSizeChange:(NSNotification *)aNotification
{
NSDictionary* d = [aNotification userInfo];
CGRect r = [[d objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
if(r.origin.y<[UIScreen mainScreen].bounds.size.height)
{
CGRect convertRect = [self.view convertRect:r fromView:[UIApplication sharedApplication].keyWindow];
CGRect viewBounds = self.view.bounds;
CGRect tipsFrame = CGRectMake(0, 0, viewBounds.size.width, convertRect.origin.y);
self.searchTipsController.view.frame = tipsFrame;
self.searchTipsController.tableView.contentInset = UIEdgeInsetsZero;
[self.searchTipsController.view removeFromSuperview];
[self.view addSubview:self.searchTipsController.view];
}
}
But I still hope some one can answer my question, thanks.