未填充UITableView，因为从未调用tableView：cellForRowAtIndexPath

Question

My UITableView is not populated because:

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

is never invoked.

This is how I initialize the table:

self.recentScannedItems = [[[UITableView alloc] initWithFrame:kLastScannedPortrait style:UITableViewStylePlain] autorelease];
    [self.recentScannedItems setDelegate:self];
    [self.recentScannedItems setDataSource:self];
    [self.view addSubview:recentScannedItems];

what am I missing ?

Answer 1

Does your class comply to UITableViewDataSource ? Like:

@interface mySuperClass : UIViewController <UITableViewDataSource, UITableViewDelegate>

Answer 2

Have you implemented correctly the datasource methods:

- (NSInteger)numberOfSectionsInTableView:(UITableView *)aTableView {
    // Return the number of sections.
    return NumberOfSections;
}

- (NSInteger)tableView:(UITableView *)aTableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.

    return NumberOfRows;
}

If you are not implementing this methods, or if you are returning 0 in them, cellForRowAtIndexPath won't be called