当我点击表格视图中的第一个单元格时,不会触发 didSelectRowAtIndexPath

发布于 2024-08-06 21:54:40 字数 2615 浏览 11 评论 0原文

当我点击表格视图中的第一个单元格时 didSelectRowAtIndexPath 不会被触发...有人看到这个和/或知道为什么会发生这种情况吗?表中的所有其他单元格都工作正常,我在 didSelectRowAtIndexPath 中的代码中放置了一个断点,如果点击第一个单元格,应用程序不会进入该代码,但如果有任何一个单元格,则应用程序不会进入该代码。其他单元格被窃听。 这是一些代码:

    - (NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSInteger row = 0;
    return row;
}

- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSInteger row = [indexPath row];
    if (row == 0)
        return nil;

    return indexPath;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    //NSUInteger row = [indexPath row];
    //NSString *rowValue = [poolListData objectAtIndex:row];

    int newRow = [indexPath row];
    int oldRow = [lastIndexPathForPoolList row];

    if (newRow != oldRow)
    {
        UITableViewCell *newCell = [tableView cellForRowAtIndexPath:indexPath];
        newCell.accessoryType = UITableViewCellAccessoryCheckmark;

        UITableViewCell *oldCell = [tableView cellForRowAtIndexPath: lastIndexPathForPoolList]; 
        oldCell.accessoryType = UITableViewCellAccessoryNone;

        lastIndexPathForPoolList = indexPath;   
    }

    [tableView deselectRowAtIndexPath:indexPath animated:YES];
}

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

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

    static NSString *DeleteMeCellIdentifier = @"DeleteMeCellIdentifier";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:DeleteMeCellIdentifier];
    if (cell == nil)
    {
        cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:DeleteMeCellIdentifier] autorelease];
    }

    NSInteger row = [indexPath row];
    cell.text = [self.poolListData objectAtIndex:row];
    return cell;
}

#pragma mark -
#pragma mark Table View Delegate Methods

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 50;
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{   
    NSUInteger row = [indexPath row];
    [self.poolListData removeObjectAtIndex:row];
    [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}

感谢您的时间以及您可以给我的任何帮助!

When I tap the first cell in my tableview didSelectRowAtIndexPath is not triggered... Has anyone seem this and/or have any clue as to why this happens? All the other cells in my table work just fine and I put a breakpoint in my code in didSelectRowAtIndexPath the app does not go into that code if the first cell is tapped but will go into the code if the any other cell is tapped.
Here is some code:

    - (NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSInteger row = 0;
    return row;
}

- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSInteger row = [indexPath row];
    if (row == 0)
        return nil;

    return indexPath;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    //NSUInteger row = [indexPath row];
    //NSString *rowValue = [poolListData objectAtIndex:row];

    int newRow = [indexPath row];
    int oldRow = [lastIndexPathForPoolList row];

    if (newRow != oldRow)
    {
        UITableViewCell *newCell = [tableView cellForRowAtIndexPath:indexPath];
        newCell.accessoryType = UITableViewCellAccessoryCheckmark;

        UITableViewCell *oldCell = [tableView cellForRowAtIndexPath: lastIndexPathForPoolList]; 
        oldCell.accessoryType = UITableViewCellAccessoryNone;

        lastIndexPathForPoolList = indexPath;   
    }

    [tableView deselectRowAtIndexPath:indexPath animated:YES];
}

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

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

    static NSString *DeleteMeCellIdentifier = @"DeleteMeCellIdentifier";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:DeleteMeCellIdentifier];
    if (cell == nil)
    {
        cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:DeleteMeCellIdentifier] autorelease];
    }

    NSInteger row = [indexPath row];
    cell.text = [self.poolListData objectAtIndex:row];
    return cell;
}

#pragma mark -
#pragma mark Table View Delegate Methods

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 50;
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{   
    NSUInteger row = [indexPath row];
    [self.poolListData removeObjectAtIndex:row];
    [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}

Thank you for your time and any help you can give me!

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一指流沙 2024-08-13 21:54:40

我认为您在第一行的 willSelectRowForIndexPath 中返回 nil 。这将阻止选择该行。

I think that your return nil in willSelectRowForIndexPath for the first row. This will prevent the row from being selected.

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