array objects loading but not connecting to cell - ios

Question

I'm passing an array of favorites -- from a details view -- to (what should be) a table view displaying the favorites individually.
The first array [in the first view] is okay:
Array found. Contents: (
"\U5df4",
"\U5df4",
"\U82ad\U8305//\U5df4\U8305",
"\U5df4\U5bb6",
"\U7b06\U7bd3\U513f",
"\U5df4",
"\U5df4",
"\U5df4",
"\U5df4",
"\U5df4",
"\U5df4\U5bb6",
"\U5df4",
"\U5df4",
"\U5df4"
)
Number of items in my array is: 15
and printing it [from the second array in the second view]:
Printing description of self->FavsTwo:
<__NSCFArray 0x1f9644a0>(
巴,
巴,
芭茅//巴茅,
巴家,
笆篓儿,
巴,
巴,
巴,
巴,
巴,
巴家,
巴,
巴,
巴,
巴家
)
is also cool...
The first break i get is here:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [FavsTwo count];
}
and then all these errors:
*** Assertion failure in -[UITableView _configureCellForDisplay:forIndexPath:], /SourceCache/UIKit_Sim/UIKit-2903.2/UITableView.m:6235
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UITableView dataSource must return a cell from tableView:cellForRowAtIndexPath:'
***
my cell looks like this:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
NSString *cellValue = [self.FavsTwo objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;
return cell;
}
trying to convert objects to strings -- not really sure where it's failing
cheers

Answer 1

cellForRowAtIndexPath return nil, if can not ReusableCell, you should create a cell with theCellIdentifier
try this:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
NSString *cellValue = [self.FavsTwo objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;
return cell;
}

Answer 2

You are missing self in the tableView:numberOfRowsInSection:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [self.FavsTwo count];
}
The dequeueReusableCellWithIdentifier: may return nil if it can not deque a cell.
You need to check if the cell is nil:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(!cell) {
cell = [UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]
}
NSString *cellValue = [self.FavsTwo objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;
return cell;
}
If you have used registerClass:forCellReuseIdentifier: or registerNib:forCellReuseIdentifier:.The you need to get the cell with dequeueReusableCellWithIdentifier:forIndexPath::
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
NSString *cellValue = [self.FavsTwo objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;
return cell;
}