Unable to Populate TableView In PopOverController - Objective C

Question

I have a UIButton called as UploadButton. I am using the following lines of code which takes care of the action which should happen on clicking it ::

Answer 1

Use the following code in cellForRowAtIndexPath:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{

    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    // Configure the cell...

    if( cell == nil )
    {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }

    NSString *key1 = [keys1 objectAtIndex:indexPath.row];
    cell.textLabel.text = key1;

    return cell;

}

I think this may helpful for you.

Answer 2

That error means that you're passing an invalid argument when you're assigning a value to keys1, self.keys1 = .... If you're, e.g., passing a NSMutableArray to an NSDictionary property, you'll get that error.

Answer 3

The problem is the following line:

self.keys1 = [NSMutableArray array];

Your UploadSpaceTableViewController has no method setKeys / no property keys.

Edit for the 2nd error message:

UITableView dataSource must return a cell from tableView:cellForRowAtIndexPath:

This means that you should implement the UITableViewDataSource method tableView:cellForRowAtIndexPath:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    //configure your cell here

    return myCongiuredTableViewCell;
}

Answer 4

Have you allocated your cell i think by your code it will return nill

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
 static NSString *CellIdentifier = @"Cell";
 UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

 if(cell == nill){
      cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];  
}     
 // Configure the cell...

 NSString *key1 = [keys1 objectAtIndex:indexPath.row];
 cell.textLabel.text = key1;

 return cell;
}

may this will help you...