I would like to change the format of the first cell in my UITableView (masterViewController), so that the image stretches across thewidth of the whole cell and the text label is shown above the image. Also would like to add a second text label to this cell only?
Any help on how to do this would be great, I have looked without success for this particular problem and I am fairly new to UITableViews.
Make one custom cell as per your requirement and load it for indexpath.row== 0 and simple UITableViewCell for all other cells. hope it will helps you
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"CustomCell";
CustomCell *customcell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
static NSString * identifier = #"Cell";
UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:identifier];
if(indexPath.row == k)
{
if(customcell == nil)
{
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:#"CustomCell" owner:self options:nil];
scrlcell = [nib objectAtIndex:0];
}
}
else{
if(cell == nil){
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
}
}
if(indexPath.row == k)
return customcell;
else
return cell;
}
You should build a custom cell (you can build it in Interface builder) and then use it on your indexPath.row == 0. Like this:
static NSString *CellIdentifier = #"CellIdentifier";
CustomCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(!cell)
{
NSArray *topLevel = [[NSBundle mainBundle] loadNibNamed:#"CustomCell" owner:nil options:nil];
for (id currentObject in topLevel){
if ([currentObject isKindOfClass:[CustomCell class]])
{
cell = currentObject;
break;
}
}
}
if(indexPath.row == 0){
// Use your cell here
}else{
// Build a new cell
}
return cell;
Related
I want to load my custom xib for tableviewcell in view controller.I can't load my xib in tableview
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:[CustomCell reuseIdentifier]];
if (cell == nil) {
[[NSBundle mainBundle] loadNibNamed:#"CustomCell" owner:self options:nil];
cell = _customCell;
_customCell = nil;
}
cell.topLabel.text = #"I am on top";
cell.bottomLabel.text = #"and I'm on the bottom";
return cell;
}
I cant't load my custom cell from xib into tableview.
Please help me.
There are two options:
OPTION 1
First you can Register the Custom Cell in viewDidLoad
UINib *nib = [UINib nibWithNibName:#"CustomCell" bundle:nil];
[tableView registerNib:nib forCellReuseIdentifier:#"cell"];
Then in cellForRowAtIndexPath of TableView DataSource methods:
CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:#"cell"];
cell.lblName.text = #"Tejas";
OPTION 2
If you are not registering the cell in viewDidLoad, you have to do the following things in cellForRowAtIndexPath of TableView DataSource methods:
CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:#"cell"];
NSArray *nibs = [[NSBundle mainBundle]loadNibNamed:#"CustomCell" owner:self options:nil];
if(cell == nil)
cell = nibs[0];
cell.lblName.text = #"Tejas";
return cell;
You can do like this in Tableview cellforrowAtIndexPath methods,
static NSString *CellIdentifier = #"CellData";
NSArray *arrData = [[NSBundle mainBundle]loadNibNamed:#"cellTaskDetail" owner:nil options:nil];
cellTaskDetail *cell = [[cellTaskDetail alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
cell = [arrData objectAtIndex:0];
return cell;
Its work fine...do it
Register the cell(XIB Cell) in the UITableView using the following method:
[self.tableView registerNib:[UINib nibWithName:nibName bundle:nil] forCellReuseIdentifier:#"CustomCell"];
Then you can dequeue the cell using the identifier you used for registering the cell.
NSString *simpleTableIdentifier = [NSString stringWithFormat:#"%d_%d",indexPath.section,indexPath.row];
CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil)
{
NSArray *nibArray = [[NSBundle mainBundle] loadNibNamed:#"CustomCell" owner:self options:nil];
cell = [nibArray objectAtIndex:0];
}
cell.topLabel.text = #"I am on top";
cell.bottomLabel.text = #"and I'm on the bottom";
return cell;
Using loadNibNamed simple solution
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = #"CellIdentifier";
YourCustomeCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{ cell = [[[NSBundle mainBundle] loadNibNamed:#"YourCustomeCell" owner:self options:nil] objectAtIndex:0];
}
// do code with cell here
return cell;
}
I am new to developing. i have some experience but i'm not great at it (yet). I'm working on this tableview app which shows data. I want to show that data in a custom cell. But i don't know how to do that.
This is the code i use for my tableview:
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
HistoryTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"HistoryViewTableCell"];
if (cell == nil) {
NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:#"HistoryViewTableCell" owner:self options:nil];
cell = [topLevelObjects objectAtIndex:0];
}
NSDictionary * tempDictionary = [tableData objectAtIndex:indexPath.row];
cell.textLabel.text = [tempDictionary objectForKey:#"PickupAddress"];
return cell;
}
I need to show this line of code in my custom cell.
cell.textLabel.text = [tempDictionary objectForKey:#"PickupAddress"];
I already made a class and a xib file for the custom cell
This may solve the problem:
HistoryTableViewCell *cell = (HistoryTableViewCell *)[tableView dequeueReusableCellWithIdentifier:#"HistoryViewTableCell"];
your written kind of code will not work. if you are using custom XIB than add a UILable in the xib. and than assign them tag number.
now from ViewController do the following:
write this after #implementation
enum {
CELL_TITLE = 2,
CELL_SUBTITLE_1 = 3,
};
Load the Custom XIB File in cellforrowatindexpath method.
// Get table View Cell
static NSString *CellIdentifier = #"customCell";
UITableViewCell *cell = [atableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
NSArray *nib;
nib = [[NSBundle mainBundle] loadNibNamed:CellIdentifier owner:self options:nil];
cell = (UITableViewCell *) [nib objectAtIndex:0];
}
Now Add text on Lable with the below methods;
UILabel *titleLable = (UILabel *) [cell.contentView viewWithTag:CELL_TITLE];
titleLable.text = #"This is your text";
I'm building an app where a screen should show a tableview where in the tableview first two row are two different custom cells and the rest are different custom cells. So I have did this in my cellForRowAtIndexPath:
My Code:
if (indexPath.row == 0 && !isSearchEnabled) {
FirstRowViewCell *cell;
static NSString *CellIdentifier = #"FirstCell";
cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
// load a new cell from the nib file
[[NSBundle mainBundle] loadNibNamed:#"ContactCell" owner:self options:nil];
cell = self.firstCell;
//cell.delegate = self;
//cell.indexPath = indexPath;
self.firstCell = nil;
}
return cell;
} else if (indexPath.row == 1 && !isSearchEnabled) {
SecondRowViewCell *cell;
static NSString *CellIdentifier = #"SecondCell";
cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
// load a new cell from the nib file
[[NSBundle mainBundle] loadNibNamed:#"ContactCell" owner:self options:nil];
cell = self.secondCell;
//cell.delegate = self;
//cell.indexPath = indexPath;
self.secondCell = nil;
}
return cell;
}else {
static NSString *CellIdentifier = #"ContactCell";
ContactTableCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
[[NSBundle mainBundle] loadNibNamed:#"ContactCell" owner:self options:nil];
// load a new cell from the nib file
cell = self.contactCell;
cell.delegate = self;
cell.indexPath = indexPath;
self.contactCell = nil;
}
return cell;}
but its lagging when scrolling the tableview. When I checked with the Time Profiler in instruments its showing that cellForRowAtIndexPath especially the
[[NSBundle mainBundle] loadNibNamed:#"ContactCell" owner:self options:nil];
is taking much time to load which causes lag. My question is, do the cell getting reused or not, because the above line getting executed for each and every cell even we are scrolling to the top. Please help me to get through the lag problem. Thanks!
try this may be it will helps
static NSString *simpleTableIdentifier = #"ContactCell";
ContactCell *cell = (ContactCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil)
{
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:#"ContactCell" owner:self options:nil];
cell = [nib objectAtIndex:0];
}
return cell;
You are creating cells that do not have the reuseIdentifier set. reuseIdentifier is a readonly property of UITableViewCell. What you should do instead is register the nib with the tableview, perhaps in the viewDidLoad or viewWillAppear method of your UIViewController.
UINib *cellNib = [UINib nibWithNibName:#"ContactCell" bundle:nil];
[tableView registerNib:nib forCellReuseIdentifier:CellIdentifier];
Once you do this, dequeueReusableCellWithIdentifier: will always return a valid cell, whether it is instantiating it or reusing it for you.
You can refer to this Apple documentation: UITableView, UITableViewCell, and UINib.
UITableViewCell custom cell's contents such as UILabel text, UIButton title resets to default values(Label, Button) after Scrolling the Table View.I using number of custom cell in single table view. These is are code which i used to generate number of custom cell in single table view with different identifier and different custom cell name for each and every cell.
static NSString *CellIdentifier = #"cell";
UITableViewCell *cell = (customCell1 *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) cell = [[customCell1 alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
{
NSArray* topLevelObjects = [[NSBundle mainBundle] loadNibNamed:#"customCell1" owner:self options:nil];
for (id currentObject in topLevelObjects)
{
if ([currentObject isKindOfClass:[UITableViewCell class]])
{
cell = (customCell1 *)currentObject;
break;
}
}
}
static NSString *CellIdentifier2 = #"cell2";
UITableViewCell *cell2 = (customCell2 *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier2];
if (cell2 == nil) cell2 = [[customCell2 alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier2];
{
NSArray* topLevelObjects = [[NSBundle mainBundle] loadNibNamed:#"customCell2" owner:self options:nil];
for (id currentObject in topLevelObjects)
{
if ([currentObject isKindOfClass:[UITableViewCell class]])
{
cell2 = (customCell2 *)currentObject;
break;
}
}
}
cell.label = #"Test";
[cell2.button setTitle:#"Test Button" forState:UIControlStateNormal];
return cell;
return cell2;
As you are setting the cell/cell2 to a UITableViewCell loaded from NIB, the reuse identifier(s) will be whatever was set in the XIB.
Anyway, the code you pasted in has quite a few issues. Is that the one you are really using? cell2 will be never returned.
The cells in table view are dynamically created by dequeuing using the cell identifier.In the code you mentioned above will always return first "return cell";
The data source method can return only one cell at a time after the creation. So if you want to return a cell depending of your use you have to do like below
(UITableViewCell *)tableView:(UITableView *)theTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
// Ideally a custom cell should be created like this
if(condition when you wan this cell1)
{
//create the custom cell1 here and return it as given below
static NSString *cellIdentifier = #"MyCustomCell";
// Similar to UITableViewCell
MyCustomCell *cell = (MyCustomCell *)[theTableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[MyCustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
return cell1;
}
else if(when you want to create this cell2)
{
// create the custom cell2 here and return it
return cell2;
}
// Create the default UI table view cell and return it . if any of the above condition did not satisfied, it will return the default cell.
// create default UI table here and return it
return cell;
}
I am new to iOS. I have a table view where i want to load different custom cells.
Here is my code from tableViewCellForRowAtIndexPath:
if (self.mainTableView .tag==SEARCH)
{
static NSString *cellId=#"Cella";
CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:cellId];
if (cell == nil)
{
NSArray *topLevelOjects= [[NSBundle mainBundle] loadNibNamed:#"CustomCell" owner:self options:nil];
cell=[topLevelOjects objectAtIndex:0];
}
//code goes here
return cell;
}
else
{
static NSString *mCell = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:mCell];
if(cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
}
//code goes here
return cell;
}
In method numberOfRowsInSections:(UITableView *) tableview I have:
if (tableView.tag==SEARCH)
{
return [firstList count];
}
else
{
return [secondList count];
}
The problem i have is that every time ELSE is executed the tableview contains both the first and second CustomCell. WHY?
I finally found the issue. The identifier used on else branch was actually the identifier used for the CustomCell *cell =.. (if branch). There was no Cella identifier:).