ios - 如何以编程方式创建UITableView

我有以下代码以编程方式创建带有表的视图

- (void) createView:(UIViewController*)viewController{
    _thisViewController = viewController;
    CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;
    CGFloat screenHeight = [UIScreen mainScreen].bounds.size.height;

    UILabel *titleLabel = [[UILabel alloc] init];
    titleLabel.text = @"Title";
    titleLabel.frame = CGRectMake(75, 20, 200, 50);
    titleLabel.textColor = [UIColor blackColor];
    titleLabel.font = [titleLabel.font fontWithSize: 24];

    UILabel *subtitleLabel = [[UILabel alloc] init];
    subtitleLabel.text = @"Subtitle";
    subtitleLabel.frame = CGRectMake(75, 50, 400, 50);
    subtitleLabel.textColor = [UIColor blackColor];
    subtitleLabel.font = [subtitleLabel.font fontWithSize: 20];

    UILabel *labelStatus = [[UILabel alloc] init];
    labelStatus.text = @"";
    labelStatus.frame = CGRectMake(75, screenHeight - 290, 500, 50);
    labelStatus.textColor = [UIColor blueColor];
    labelStatus.font = [labelStatus.font fontWithSize: 20];

    UITableView *tableDeviceList = [[UITableView alloc] init];
    tableDeviceList.frame = CGRectMake(75, 100, screenWidth -250, screenHeight - 400);
    tableDeviceList.dataSource = self;
    tableDeviceList.delegate = self;

    UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [cancelButton setTitle:@"Cancelar" forState:UIControlStateNormal];
    [cancelButton sizeToFit];

    cancelButton.frame = CGRectMake((screenWidth/2)-100, screenHeight - 250, 100, 50);
    cancelButton.backgroundColor = UIColorFromRGB(0x066D8B);
    cancelButton.layer.cornerRadius = 20;
    [cancelButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [cancelButton addTarget:self action:@selector(cancelButtonPressed:) forControlEvents:UIControlEventTouchUpInside];

    UIViewController *viewControllerModal = [[UIViewController alloc] init];

    UIView *nooView = [[UIView alloc] initWithFrame:CGRectMake(50, 80, screenWidth - 100, screenHeight - 160)];
    nooView.backgroundColor = UIColorFromRGB(0xE8E8E8);
    nooView.layer.cornerRadius = 20;

    [nooView addSubview:titleLabel];
    [nooView addSubview:subtitleLabel];
    [nooView addSubview:tableDeviceList];
    [nooView addSubview:labelStatus];
    [nooView addSubview:cancelButton];

    [viewControllerModal.view addSubview:nooView];

    [viewController presentViewController: viewControllerModal animated:YES completion:nil];
}

这使我抛出tableView:numberOfRowsInSection:错误，所以我想知道是否有办法向以此方式创建的UITableView添加函数（我正在以编程方式创建UITableView）。

另外，我的类的类型为NSObject，所以我想知道dataSource的delegate和tableDeviceList属性的分配是否存在问题。

最佳答案

您需要在您的课程中实现dataSource的delegate和UITableView方法，

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1; // number of sections
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return 10; // should be your array count
}

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

    static NSString *cellId = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellId];
    if (cell == nil)
    {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId];
    }
    cell.textlabel.text = @"test";
    return cell;
}

关于ios - 如何以编程方式创建UITableView，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/53784587/