UITableView with two custom cells (multiple identifiers) - ios

Question

I am trying to put a cell as a space between each cell - which will be hidden by setting alpha = 0. In my table, the space cells will be for rows that are odd.
Note that the actual cell height is 85, but the hidden cell height (ie space between cells) is 20.
The problem is that the space cell height is 85, but not 20, I don't know why. Maybe the cell is not loaded correctly.
Cell here is the UITableViewCell - the actual cell - with identifier 'Cell'.
Cell2 is the space with identifier 'Space'.
Each class above has its own UITableViewCell class and the XIB files are also assigned to each of them. The identifier is also set in the IB for each Xib.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier1 = #"Cell";
static NSString *CellIdentifier2 = #"Space";
Cell *cell = (Cell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier1];
if(!cell)
{
NSArray *ar = [[NSBundle mainBundle] loadNibNamed:#"CellView" owner:nil options:nil];
for (id obj in ar)
{
if ([obj isKindOfClass:[Cell class]])
{
cell = (Cell *)obj;
break;
}
}
}
if (indexPath.row % 2 == 1)
{
Cell2 *cell2 = (Cell2 *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier2];
if (!cell2)
{
NSArray *ar = [[NSBundle mainBundle] loadNibNamed:#"Cell2" owner:nil options:nil];
for(id obj in ar)
{
if([obj isKindOfClass:[Cell2 class]])
{
cell2 = (Cell2 *)obj;
break;
}
}
// Method 1
cell2 = [[Cell2 alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier2];
// Method 2
//cell2 = [[Cell2 alloc] init];
// Method 3
//cell2 = (Cell2 *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier2];
[cell2.contentView setAlpha:0];
// prevent selection and other stuff
[cell2 setUserInteractionEnabled:NO];
}
return cell2;
}
else
{
// Configure the actual cell
}
return cell;
}

Answer 1

* I've renamed some of your NIB/Class names for a better understanding. *
First, you should register each cells' NIB:
- (void)viewDidLoad{
[super viewDidLoad];
static NSString *CellIdentifier1 = #"ContentCell";
static NSString *CellIdentifier2 = #"SpaceCell";
UINib *nib = [UINib nibWithNibName:#"CellViewNIBName" bundle:nil];
[self.tableView registerNib:nib forCellReuseIdentifier:CellIdentifier1];
nib = [UINib nibWithNibName:#"CellSpaceNIBName" bundle:nil];
[self.tableView registerNib:nib forCellReuseIdentifier:CellIdentifier2];
self.contentView.hidden = YES;
[self loadData];
}
Because you have the NIBs registered, dequeueReusableCellWithIdentifier: will always return a cell:
- (UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier1 = #"ContentCell";
static NSString *CellIdentifier2 = #"SpaceCell";
// Space Cell
if (indexPath.row % 2 == 1) {
CellSpace *cell = (CellSpace *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier2];
return cell;
}
// Content cell
else {
CellView *cell = (CellView *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier1];
// Configure cell
return cell;
}
}
Last, but not least, make sure to implement the following delegate method:
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
// Space cell's height
if (indexPath.row % 2 == 1) {
return 20.0f;
}
// Content cell's height
else {
return 80.0f;
}
}

Answer 2

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *returncell;
static NSString *cellIdentifier ;
if(indexPath.section == 0)
{
cellIdentifier = #"cell1";
}
else if (indexPath.section == 1)
{
cellIdentifier = #"cell2";
}
UITableViewCell *myCell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
MapTableViewCell *myCustomCell = (MapTableViewCell *)[tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if(indexPath.section == 0)
{
if(myCell == nil)
{
myCell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
getLocationBtn = [UIButton buttonWithType:UIButtonTypeCustom];
getLocationBtn.frame = CGRectMake(myCell.frame.origin.x,myCell.frame.origin.y+5 , 200, 30);
[getLocationBtn setTitle:#"your button title" forState:UIControlStateNormal];
[getLocationBtn setTitleColor:[UIColor orangeColor] forState:UIControlStateNormal];
[getLocationBtn addTarget:self action:#selector(buttonAction) forControlEvents:UIControlEventTouchUpInside];
}
[myCell.contentView addSubview:getLocationBtn];
returncell = myCell;
}
else if (indexPath.section == 1)
{
if (myCustomCell == nil)
{
myCustomCell = [[MapTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
myCustomCell.nearbyLocation.text = #"demo Text";
returncell = myCustomCell;
}
return returncell;
}
//mycustom tablviewcell
import "MapTableViewCell.h"
#implementation MapTableViewCell
#synthesize nearbyLocation;
-(id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if(self)
{
self.backgroundColor = [UIColor groupTableViewBackgroundColor];
nearbyLocation = [[UILabel alloc]initWithFrame:CGRectMake(10, 5, 200, 30)];
[self addSubview:nearbyLocation];
}
return self;
}
#end
Best way to use number of custom cells with default cell

Answer 3

In addition for the answers provided, I want to emphasize on the Cell Identifier for each different custom cells must be different too.
For example custom cellA with identifier "Cell" and custom cellB with identifier "Cell2".