4

我是 X-Code 的新手,刚刚开始开发我的第一个应用程序。我正在使用故事板。在导航控制器场景中,我添加了一个带有两个单元格的 MasterViewController,这导致两个 DetailViewControllers(Detail1 和 Detail 2)。

  • 列数 = 1
  • 列中的行数 = 2

我在属性检查器中为单元格添加了重用指示器,并在情节提要中建立了连接。

但是当我运行应用程序时,我只能看到第一个单元格 x2。

当我查看 MasterViewController.m 时,我可以看到第一个单元格的代码,但我不明白如何插入第二个单元格等!

我知道解决方案很简单,我一直在寻找答案 3 天了,我觉得很愚蠢,但我现在真的需要一些帮助,,

有人可以帮助我了解如何在代码中添加更多单元格,并且可能更多地了解表格视图代码吗?

到目前为止,这是表格视图的代码:

#pragma mark - Table view data source

- (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 2;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Formal";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

// Configure the cell...

return cell;
}

/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/

/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
    // Delete the row from the data source
    [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath][withRowAnimation:UITableViewRowAnimationFade];
}   
else if (editingStyle == UITableViewCellEditingStyleInsert) {
    // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}   
}
*/

/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/

/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/

#pragma mark - Table view delegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Navigation logic may go here. Create and push another view controller.
/*
 <#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:@"<#Nib name#>" bundle:nil];
 // ...
 // Pass the selected object to the new view controller.
 [self.navigationController pushViewController:detailViewController animated:YES];
 */
}

@end
4

2 回答 2

4

假设您有一个名为 arr 的数组。

然后,当调用 numberOfRowsInSection 时,您必须返回数组中的对象数。

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
    return [arr count];
}

您的 cellForRowAtIndexPath 委托方法应该像这样打印出数组中的字符串。

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

static NSString *CellIdentifier = @"Formal";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle 
                                   reuseIdentifier:CellIdentifier] autorelease];
}

// Configure the cell.

cell.textLabel.text = [arr objectAtIndex:indexPath.row];

    return cell;
}

希望这可以帮助!

于 2012-06-03T00:39:05.173 回答
0

我的代码现在看起来像这样:

- (void)viewDidLoad
{
[super viewDidLoad];

omMeny = [[NSMutableArray alloc] init];

//Add items
[omMeny addObject:@"Formålet med guiden"];
[omMeny addObject:@"Aromahjulet"];
[omMeny addObject:@"Fagterm"];


//Set the title
self.navigationItem.title = @"Om Rødvin";
}

//dealloc method declared in RootViewController.m
- (void)dealloc {

[omMeny release];
[super dealloc];
}


// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;

// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;

- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

#pragma mark - Table view data source

- (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 2;
return [omMeny count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Om";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}

// Set up the cell...
NSString *cellValue = [omMeny objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;

// Configure the cell...

return cell;
}

#pragma mark - Table view delegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Navigation logic may go here. Create and push another view controller.
/*
 <#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:@"<#Nib name#>" bundle:nil];
 // ...
 // Pass the selected object to the new view controller.
 [self.navigationController pushViewController:detailViewController animated:YES];
 */
}

@end

在 .h 中有这个

@interface OmMasterViewController : UITableViewController {

NSMutableArray *omMeny;
}
于 2012-06-06T00:45:29.513 回答