UITableView not displaying data from array

Question

Code:

In .h:

    NSMutableArray *contentArray;

I'm declaring my array.

In .m

    - (void)viewDidLoad
    {
        [super viewDidLoad];

        contentArray = [[NSMutableArray alloc] initWithObjects:@"view", @"browse", @"create", nil];

        // Uncomment the following line to preserve selection between presentations.
        // self.clearsSelectionOnViewWillAppear = NO;

        // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
        // self.navigationItem.rightBarButtonItem = self.editButtonItem;
    }

I'm setting it up in my view did load.

    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
    {
        // Return the number of rows in the section.
        return [contentArray count];
    }

I'm setting the number of rows to the array count.

    - (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] autorelease];
        }

        // Configure the cell...

        [[cell textLabel] setText:[contentArray objectAtIndex:indexPath.row]];

        return cell;
    }

Nothing. But if I do "[[cell textLabel] setText:@"Hello World."];" instead, it works fine.

slonkar · Accepted Answer · 2011-11-12 18:46:19Z

1

Are you at least getting 3 empty rows in table ? If yes then just change your code

NSString *tempString = [your_array objectAtIndex:indexPath.row];
cell.textLabel.text = tempString;

If you are not even getting empty strings then make property of your array in .h file. Synthesize it in .m (also release it in delloc function) and finally in viewDidLoad right following

NSMutableArray tempContentArray = [[NSMutableArray alloc] arrayWithObjects:@"view", @"browse", @"create", nil];
self.contentArray=tempArray;

and then write following code to get cell title

NSString *tempString = [self.contentArray objectAtIndex:indexPath.row];
cell.textLabel.text = tempString;

answered Nov 12, 2011 at 18:46

slonkar

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Comments

MoFuRo · Accepted Answer · 2011-11-12 18:45:28Z

0

Try to initialize your Array in your init method or call reloadDataon your UITableView after you set your Array.

answered Nov 12, 2011 at 18:45

MoFuRo

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1 Comment

George Morgan Over a year ago

Thanks! I just realized that, since i'm not using a nav controller, viewDidLoad is never called! Just had to stick in in my init. Thanks again!

Jyoti Kumari · Accepted Answer · 2012-03-27 11:49:01Z

0

Your code in .m file is fine. Write property .h file synthesize and dealloc your NSMutable array .m file it may be help you.

answered Mar 27, 2012 at 11:49

Jyoti Kumari

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Comments

Bhoopi · Accepted Answer · 2012-12-01 11:16:48Z

simply use following line of code //initlize nsarray with objects.

-(void)viewDidLoad
{
NSArray *practice_ArrayForDisplayingEx=[NSArray alloc]initWithObjects:@"bhupi",@"bhupi",@"bhupi",@"bhupi",nil];

}


//then use in tableview.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *simpleTableIdentifier = @"SimpleTableItem";
   // UIButton *practice_takeTest_button;

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];

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


    cell.textLabel.text =[practice_ArrayForDisplayingEx objectAtIndex:indexPath.row];
    cell.textLabel.font=[UIFont fontWithName:@"Arial" size:15];



    return cell;
}

make sure you included UITableViewDelegate & UITableViewDataSourse prtocol in .h file.

hope it will help you..

Eddie Callahan · Accepted Answer · 2013-07-03 00:36:56Z

0

Make sure that your .h implements the tableview delegate and datasource... should look like this

 @interface myClass : UITableViewController <UITableViewDelegate, UITableViewDataSource>

then make this code in your ViewDidLoad method

 [self.tableView setDelegate:self];
 [self.tableView setDataSource:self];

answered Jul 3, 2013 at 0:36

Eddie Callahan

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