Question

i have search at https://stackoverflow.com/search?q=UITableView+dataSource+must+return+a+cell+from+tableView%3AcellForRowAtIndexPath ,but i know i need to check if the cell is nil,but my cell is custom,and i am not use xib,i am use storyboard.i am also choice the class CustomPlaceTableViewCell at storyboard.as https://i.stack.imgur.com/g0rRO.png

code:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
CustomPlaceTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    //if ([cell isKindOfClass:[CustomPlaceTableViewCell class]]) { cell = (CustomPlaceTableViewCell *)cell; }
//retrieve the place info
Place *place = [self.placeDataController objectInPlaceListAtIndex:indexPath.row];

//set the cell with place info
if (place.name)
{
    cell.nameLabel.text =place.name;
}
else
{
    cell.nameLabel.text = @"PortAura";
}

 if (place.distance)
{
    cell.distanceLabel.text = place.distance;    
}
else
{
    cell.distanceLabel.text = @"PortAura";
}



 return cell;

}


CustomPlaceTableViewCell.m
@interface CustomPlaceTableViewCell : UITableViewCell{
  UILabel *nameLabel;
  UILabel *distanceLabel;
  UILabel *addressLabel;
}
@property (nonatomic) IBOutlet UILabel *nameLabel;
@property (nonatomic) IBOutlet UILabel *distanceLabel;
@property (nonatomic) IBOutlet UILabel *addressLabel;
 @end


   @implementation CustomPlaceTableViewCell
   @synthesize distanceLabel,nameLabel,addressLabel;

  - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
 {
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
    // Initialization code
  }
 return self;
}

 - (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
  [super setSelected:selected animated:animated];

  // Configure the view for the selected state
 }

 @end

when i run my app ,it give me :

2012-07-02 17:16:26.675 MyAura[2595:707] *** Terminating app due to uncaught exception ‘NSInternalInconsistencyException’, reason: ‘UITableView dataSource must return a cell from tableView:cellForRowAtIndexPath:’

Answer 1

first i used :

    PlaceMasterViewController *placeController = [[PlaceMasterViewController alloc]init];
    [self.navigationController pushViewController:placeController animated:YES];

cause me no data in the table,or give me the mistake,so i used:

  UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard"
                                                             bundle: nil];

    PlaceMasterViewController *placeController = (PlaceMasterViewController*)[mainStoryboard 
                                                       instantiateViewControllerWithIdentifier: @"peoplemastViewControl"];
    [self.navigationController pushViewController:placeController animated:YES];

all is OK