ios - 以编程方式将 UITableViewCell 添加到 UITableView

Question

我有一个应用程序可以重新排列顺序UITableViewCells并删除单元格。但是，我需要帮助在UITableView按下按钮时添加新单元格以及保存重新排列的单元格顺序的方法。

这是文件中的ViewController.m代码

- (void)viewDidLoad
{
[super viewDidLoad];
if (!maTheData) {
    maTheData = [[NSMutableArray alloc] initWithObjects:@"Bus", @"Truck", @"Car",nil];


}
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [maTheData count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath           *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"tvcItems"];
UILabel *lblName = (UILabel *)[cell viewWithTag:100];
[lblName setText:[maTheData objectAtIndex:[indexPath row]]];
return cell;
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:    (UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
    // Delete the row from the data source
    [maTheData removeObjectAtIndex:[indexPath row]];
    // Delete row using the cool literal version of [NSArray arrayWithObject:indexPath]
    [tableView deleteRowsAtIndexPaths:@[indexPath]   withRowAnimation:UITableViewRowAnimationFade];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
    // Insert something into the array, and you can just add a populated NSIndexPath of   data or simplr reload data
    [maTheData addObject:@"I'm a new item!"];
    [tableView reloadData];
}
}

- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
NSString *mover = [maTheData objectAtIndex:[fromIndexPath row]];
[maTheData removeObjectAtIndex:[fromIndexPath row]];
[maTheData insertObject:mover atIndex:[toIndexPath row]];

[tableView setEditing:NO animated:YES];

}

- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}



- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView setEditing:YES animated:YES];
}

Answer 1

在您的 IBAction 方法（连接到您的按钮的方法）中，您只需向您的 maTheData 添加一个新条目并调用[self.tableView reloadData].

- (IBAction)addAction:(id)sender {   
  [self.maTheData addObject:@"A string object"];
  [self.tableView reloadData];
}