Hide first Cell of UITableView on iPad - objective-c

Question

I have a TableView with various entries. Sometimes i need to scroll down, sometimes there are only a few entries, so everything is visible.
I want some settings and filters in my First Cell, but it should not be visible, only when the user scrolls down.
My Trys:
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
float rowHeight = [self tableView:self.tableView heightForRowAtIndexPath:indexPath];
self.tableView.contentOffset = CGPointMake(0, rowHeight);
}
and
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
[self.tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTopanimated:NO];
}
Both did not work.
Any advice on my problem?

Answer 1

Are you looking for something like this?
[self.tableView setContentInset:UIEdgeInsetsMake(t,l,b,r)];
this will shift your tableView whatever way you want, but you can definitely scroll back.

Answer 2

Try your logic in the TableView Delegate methods
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
if (indexPath.row == 0) {
//Your filters here
}
else {
//display the cell
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
Also if you dont wish the first cell to be displayed just write
return nil; //for condition of indexpath.row == 0
And also adjust the height for the row in
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
if (section == 0 && isDisplayThisSection) {//first visible
UIView *headerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 5, 320, 25)] autorelease];
UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(17, 10, 300, 25)];
[titleLabel setFont:[UIFont boldSystemFontOfSize:17.0]];
titleLabel.text = #"Temp Test";
[titleLabel setBackgroundColor:[UIColor clearColor]];
[headerView addSubview:titleLabel];
[titleLabel release];
[headerView setBackgroundColor:[UIColor clearColor]];
return headerView;
}
return [[[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, 0)] autorelease];
}
set value to 0
Hope this help!!

Answer 3

Try your logic in the TableView Delegate methods
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
if (indexPath.row == 0) {
//Your filters here
}
else {
//display the cell
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
Also if you dont wish the first cell to be displayed just write
return ; //for condition of indexpath.row == 0
And also adjust the height for the row in
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath;
set value to 0
And if you wish to implement like Pull_to_Refresh, you would better write your logic in
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section;
Hope this help!!