Table View not populating objects - ios

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"GenusNameCell";
GenusNameCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[GenusNameCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"GenusNameCell"];
cell.GenusNameLabel.text = [genusName objectAtIndex:indexPath.row];
[cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
}
return cell;
}
I have a tableview with an Array of objects but when I run it. Nothing shows up. Im fairly new to xcode but Im not sure what my mistake is in the code. Can some one help me out?

If the cellForRowAtIndexPath callback is never called, it could be:
you didn't have set the dataSource of your tableview;
you didn't implement the numberOfSectionsInTableView: and/or tableView:numberOfRowsInSection: callbacks.
And if you dequeue your cell, you need to set the text outside the if branch like this:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"GenusNameCell";
GenusNameCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[GenusNameCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"GenusNameCell"];
[cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
}
cell.GenusNameLabel.text = [genusName objectAtIndex:indexPath.row];
return cell;
}

Change the code like this your code will run,
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"GenusNameCell";
GenusNameCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[GenusNameCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"GenusNameCell"];
[cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
}
cell.GenusNameLabel.text = [[genusName objectAtIndex:indexPath.row] geniusname];
return cell;
}
geniusname is the NSString you stored the name of the person.

Related

Cell at indexpath 0 not displaying correctly

I have a UITableView with sections inside of them. All works great, but I can't seem to figure out how to customize the very fist index path. For example, I know this is very easily achievable through a normal tableview like so:
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell*cell = [tableView dequeueReusableCellWithIdentifier:#"cell"];
if(!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
if (indexPath.row == 0)
{
cell.detailTextLabel.text = #"My Custom text";
NSLog(#"%#",pm1.customText1);
}
}
}
I have tried the above implementation and it does not seem to work for me. Is there a different approach for section headers to achieve the same result with a normal tableview? Do I need to inject a "fake" section in my dictionary?
-(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];
}
if (indexPath.row == 0) {
cell.detailTextLabel.text = #"My Custom text";
NSLog(#"%#",pm1.customText1);
}
return cell;
}
Try this
The way you have it now the first cell is customize only when cell is nil.
You should move it out of the if statement.
- (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];
}
//check for first cell
if (indexPath.row == 0) {
cell.detailTextLabel.text = #"My first Cell";
NSLog(#"%#",pm1.customText1);
}else{
cell.detailTextLabel.text = #"Other cells";
NSLog(#"other cells");
}
return cell;
}

Working with dynamic and static sections together in a tableview

I am having some problem to manage my cells in a tableview.
I have one table view with two sections:
The first one, I have 3 custom cells, with static cells.
The second one, I have a dynamic type.
To work with the dynamic one, no problem is occurring, but the static, I don't know how to "reuse" them.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if(indexpath.section = 0){
//here is the question, how to return the stactis that had already been defined
}else{
return cell //here is okay, i can return the dynamic
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if(indexpath.section = 0){
//here is the question, how to return the stactis that had already been defined
static NSString *CellIdentifier = #"StaticCell";
StaticCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
return cell;
}else{
static NSString *CellIdentifier = #"DynamicCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell == nil){
cell=[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
cell.accessoryType=UITableViewCellAccessoryDisclosureIndicator;
}
return cell;
}

cellForRowIndexPath without cellidentifier ios

I do not have xib files or storyboards in my project. In this case how do I set the cell identifier? Below is my code:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(#"test");
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
cell.textLabel.text = [self.entries objectAtIndex:indexPath.row];
return cell;
}
Try to replace you code by this (using ARC) :
- (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];
cell.textLabel.text = [self.entries objectAtIndex:indexPath.row];
return cell;
}
++
If you're just using a UITableViewCell for your table view, you can register that class in viewDidLoad like this:
[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:#"Cell"];
Use the same identifier in cellForRowAtIndexPath: that you use here.

Extended TableViewCell blank

I'm trying to customize a UITableViewCell, but for some reason it's showing up as blank. Is there something obvious I'm doing wrong? I've pulled the menuLabel from the storyboard as an outlet, so it's tied correctly, and the cell in the storyboard is linked to the class "MenuCell".
In my tableview controller
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"MenuCell";
[self.tableView registerClass:[MenuCell class] forCellReuseIdentifier:CellIdentifier];
MenuCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell == nil) {
NSLog(#"creating a new cell");
cell = [[MenuCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:#"MenuCell"];
}
cell.menuLabel.text = #"Hello";
return cell;
}
You can use this
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"MenuCell";
MenuCell *cell = (MenuCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
UINib* customCellNib = [UINib nibWithNibName:#"MenuCell" bundle:nil];
// Register this nib file with cell identifier.
[tableView registerNib: customCellNib forCellReuseIdentifier:CellIdentifier];
cell = (MenuCell*) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
}
// Whatever you want
retrun cell;
}
Hope this will help. happy coding :P
Use this one ....
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellIdentifier = #"MenuCell";
MenuCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil)
{
cell = [[MenuCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
cell = (MenuCell *)[[[NSBundle mainBundle] loadNibNamed:#"MenuCell" owner:self options:nil] objectAtIndex:0];
}
cell.menuLabel.text = #"Hello";
return cell;
}
I Hope it will be helpful.

UITableViewCell textLabel text wont set

have a UITableViewCell "postCell" that is an IBOutlet and is attached to a cell I have placed in my .xib. To set the text label:
- (void)viewDidAppear:(BOOL)animated
{
postCell.textLabel.text = #"TEXT";
}
Nothing ever appears.
Edit: This cell is not part of a Table View. Every answer I have seen is assuming it is. This is a single UITableViewCell.
- (NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 1;
}
- (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
PostCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[PostCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.textLabel.text = #"text";
return cell;
}
You can set text label for the cell in method cellForRowAtIndexPath, please see example below.
- (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];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
cell.textLabel.text = #"Cell Title";
return cell;
}
There are a few delegate methods that you need to implement. Here are the two most important ones
tableView:cellForRowAtIndexPath:
tableView:numberOfRowsInSection:
Here's a full tutorial on how to implement a table view.
http://www.raywenderlich.com/?p=1797

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