Databases
StackOverflow2013
Postsdbo
POCan't dynamically create my custom cells on UITableView
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCan't dynamically create my custom cells on UITableView
    primarykey
    data
    text
    <p>I'm trying to create a UITableView in a UIViewController (I'd use UITableViewController but I want the UITableView to only use half of the screen space) that will create a new custom cell every time I press a button, and display the current time in that cell and the time since the last time I pressed the button (so the time in this cell minus the time in the cell above it). The problem is, when I press the button, either nothing happens or, if I don't initialise the property I created for the UITableView, a blank cell appears.</p> <p>My cell has 3 UILabel's in it, inOut, entryTime and delta, and the IBOutlet I created for the UITableView is timeTable. newEntry is the button. I have set my UITableView's datasource and delegate to my UIViewController, have "called" the protocols UITableViewDataSource, UITableViewDelegate on my UIViewController's header. I can't find what's wrong.</p> <p>here's my code for the UIViewController:</p> <pre><code> @interface MainViewController () @property (strong, nonatomic) Brain *brain; @end @implementation MainViewController{ @private NSMutableArray *_entryArray; NSMutableArray *_timeSinceLastEntryArray; } @synthesize brain=_brain; @synthesize timeTable=_timeTable; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. _brain = [[Brain alloc] init]; _entryArray = [[NSMutableArray alloc] init]; _timeSinceLastEntryArray = [[NSMutableArray alloc] init]; _timeTable = [[UITableView alloc] initWithFrame:CGRectZero]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{ return 1; } -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return [_entryArray count]; } - (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ static NSString *CellIdentifier= @"Cell"; CustomCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[CustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } if (indexPath.row%2==0){ cell.inOut.text = [NSString stringWithFormat:@"Entrada %d", indexPath.row/2 +1]; cell.entryTime.text = [NSString stringWithFormat:@"%@", [_entryArray objectAtIndex:indexPath.row]]; if (indexPath.row==0){ cell.delta.text=@""; } else { cell.delta.text = [_timeSinceLastEntryArray objectAtIndex:indexPath.row]; } } else{ cell.inOut.text = [NSString stringWithFormat:@"Saída %d", (indexPath.row+1)/2]; cell.entryTime.text = [NSString stringWithFormat:@"%@",[_entryArray objectAtIndex:indexPath.row]]; cell.delta.text = [_timeSinceLastEntryArray objectAtIndex:indexPath.row]; } return cell; } - (IBAction)newEntry:(id)sender { [_entryArray addObject:[self.brain currentTime]]; NSInteger numberOfEntrys= [_entryArray count]; if (numberOfEntrys &gt;1){ NSString *timeSinceLastEntry = [_brain timeSince:[_entryArray objectAtIndex:(numberOfEntrys-2)]]; [_timeSinceLastEntryArray addObject:timeSinceLastEntry]; } else { [_timeSinceLastEntryArray addObject:@"0"]; } [_timeTable reloadData]; } @end </code></pre> <p>and for CustomCell:</p> <p>@implementation CustomCell</p> <pre><code>- (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 } @synthesize inOut=_inOut, entryTime=_entryTime, delta=_delta; - (id)initWithFrame:(CGRect)frame reuseIdentifier:(NSString *)reuseIdentifier { if (self = [super initWithFrame:frame reuseIdentifier:reuseIdentifier]) { // Initialization code _inOut = [[UILabel alloc]init]; _inOut.textAlignment = UITextAlignmentLeft; _entryTime = [[UILabel alloc]init]; _entryTime.textAlignment = UITextAlignmentLeft; _delta = [[UILabel alloc]init]; _delta.textAlignment = UITextAlignmentLeft; [self.contentView addSubview:_entryTime]; [self.contentView addSubview:_inOut]; [self.contentView addSubview:_delta]; } return self; } @end </code></pre> <p>Thanks for the help :)</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USdietbacon
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POCan't dynamically create my custom cells on UITableView
      1. USuser1316408
      1. VTFavorite
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload