iOS-why my custom tableviewcell can't show label's text - ios

Question

I'm just using code but not xib.
here's the code
tableviewcontroller.m
- (void)viewDidLoad {
[super viewDidLoad];
[self createData];
- (void)createData
{
Model *user = [[Model alloc]init];
[user setName:#"a"];
[user setWeibo:#"a"];
Model *user2 = [[Model alloc]init];
[user2 setName:#"b"];
[user2 setWeibo:#"b"];
tableData = [NSMutableArray arrayWithObjects:user,user2, nil];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [tableData count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"cell";
TableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[TableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
Model *userData = [tableData objectAtIndex:indexPath.row];
[cell.name setText:userData.name];
return cell;
}
cell.name is label.but it cannot show anything
please tell me how to let the custom tableviewcell's label to show something
I'm using UITableViewController so I guess i don't have to set tableviewdelegate and tableviewdatasorce.
and here's the tableviewcell's detail:
- (id)initWithReuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseIdentifier];
if (self) {
self.name = [[UILabel alloc]initWithFrame:CGRectMake(70, 15, 75, 30)];
[self addSubview:self.name];
}