Question

我有一个包含3个部分的表格，每个部分都有几个项目。我需要为用户选择的每个不同的行调用特定的方法。我该怎么做？

这是我的代码。

- (void)viewDidLoad
{
    [super viewDidLoad];

    // My ARRAYS
    array1 = [[NSArray alloc] initWithObjects:@"item 1", @"item 2", nil];
    array2 = [[NSArray alloc] initWithObjects:@"item 1", @"item 2", nil];
    array3 = [[NSArray alloc] initWithObjects:@"item 1", @"item 2", nil];
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    // Return the number of sections.
    return 3;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
    if (section == 0) {
        return [array1 count];
    } else if (section == 1) {
        return [array2 count];
    } else {

    }

    return [array3 count];
}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
    // Define the Titles for the Sections
    if (section == 0) {
        return @"SECTION 1";
    } else if (section == 1) {
        return @"SECTION 2";
    }

    return @"SECTION 3";
}

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

    if (cell == nil) {
        cell = [[SobreCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }

    // Configure the cell...
    if (indexPath.section == 0) {
        // Section 1
        // tituloLabel is a Label in the Cell
        cell.tituloLabel.text = [array1 objectAtIndex:indexPath.row];
    } else if (indexPath.section == 1) {
        // Section 2
        cell.tituloLabel.text = [array2 objectAtIndex:indexPath.row];
    } else {
        // Section 3
        cell.tituloLabel.text = [array3 objectAtIndex:indexPath.row];
    }

    return cell;
}

我应该使用didSelected行方法，但我不知道如何做到这一点

Answer 1

使用tableView:didSelectRowAtIndexPath:方法：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    [tableView deselectRowAtIndexPath:indexPath animated:NO];

    if (indexPath.section == 0)
    {
        // do something
    }
    else if (indexPath.section == 1)
    {
        // do something else
    }

    ...
}

Answer 2

你可以按照你在cellForRow中的方式进行：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    if (indexPath.section == 0)
    {
        [self someMethod1];
    }
    else if (indexPath.section == 1)
    {
        [self someMethod2];
    }
   else{
        [self someMethod3]
   }
}

Answer 3

您可以使用indexpath.row来标识当前选定的行。这是代码

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

    if (indexPath.section == 0)
    {
        if ( indexPath.row == 0 )
            [self someMethod1];   // Called when first row is selected under section 0
        else if ( indexPath.row == 1 )
            [self someMethod2];   // Called when second row is selected under section 0
    }
    else if (indexPath.section == 1)
    {
        if ( indexPath.row == 0 )
            [self someMethod3];   // Called when first row is selected under section 1
        else if ( indexPath.row == 1 )
            [self someMethod4];   // Called when second row is selected under section 1
    }
    else 
    {
        if ( indexPath.row == 0 )
            [self someMethod5];   // Called when first row is selected for remaining sections
        else if ( indexPath.row == 1 )
            [self someMethod6];   // Called when second row is selected for remaining sections
    }
}

为不同的行调用不同的方法

3 个答案: