Objective c 例如： tblView = [[UITableView alloc] initWithFrame:CGRectMake(100,200,320,420) style: UITableViewStyleGrouped]; tblView.delegate = self; tblView.dataSource = self; [self.view addSubview:tblView];

您所指的这些方法是委托方法，与其他普通方法不同，它们不能直接激发

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希望对你有帮助

确保已设置tableview的

委托和数据源

。请参阅重复：确保已设置tableview的

委托和数据源

。请参阅重复：确保已设置tableview的

委托和数据源

。请参阅重复：确保已设置tableview的

委托和数据源

。请参阅重复：

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{

// Return the number of sections.
return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

// Return the number of rows in the section.
return self.GPTNotifications.count;
}

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

static NSString *CellIdentifier = @"Cell";
static NSString *CellIdentifierRead = @"CellRead";

UITableViewCell *cell;


notifications *n = [self.GPTNotifications objectAtIndex:indexPath.row];



   if (n.read == false) {
    cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];



    CustomCellRead *cellReadB = (CustomCellRead *)cell;
    cellReadB.notifTitle.text = n.notifTitleD;
    cellReadB.notifDate.text = n.notifDateD;
    cellReadB.notifMsg.text = n.notifMessage;


 return cellReadB;
}

 else {
    cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifierRead     forIndexPath:indexPath];



    CustomCell *cellReadB = (CustomCell *)cell;
    cellReadB.notifTitle.text = n.notifTitleD;
    cellReadB.notifDate.text = n.notifDateD;
    cellReadB.notifMsg.text = n.notifMessage;


    return cellReadB;

    }


 }

self.myTableView.delegate = self;
self.myTableView.dataSource = self;

@interface NotificationsListTVController : UIViewController <UITableViewDelegate, UITableViewDataSource>

@interface NotificationsListTVController : UIViewController<UITableViewDataSource,UITableViewDelegate>

 tableView.delegate=self ;
 tableView.dataSource=self;

   tblView = [[UITableView alloc] initWithFrame:CGRectMake(100,200,320,420) style: UITableViewStyleGrouped];


   tblView.delegate = self;
   tblView.dataSource = self;

   [self.view addSubview:tblView];