ios - 如何使用 Objective c 创建多个 tableview 单元格？

Question

我正在使用 iOS Storyboard 创建 accordion tableview 单元格。在这里，我在单个 tableview 的单个 Storyboard上维护了两个 tableview 自定义单元格类 和 cells。

现在我的问题是在选择了基于 plist 存储的行之后，它会在选定的两个下扩展(添加)额外的行。我需要为选定的表格 View 单元格 (父单元格) 和可扩展单元格 (子单元格) 使用单独的表格 View 单元格。通过我下面的代码，父单元和子单元显示并引用相同的单元(那只是父单元。所以我无法区分父单元和子单元的 UI。

需要修改下面我的逻辑。

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSDictionary *dic=[self.itemsInTable objectAtIndex:indexPath.row];
    if([dic valueForKey:@"SubItems"])
    {
        NSArray *arr=[dic valueForKey:@"SubItems"];
        BOOL isTableExpanded=NO;

        for(NSDictionary *subitems in arr )
        {
            NSInteger index=[self.itemsInTable indexOfObjectIdenticalTo:subitems];
            isTableExpanded=(index>0 && index!=NSIntegerMax);
            if(isTableExpanded) break;
        }

        if(isTableExpanded)
        {
            [self CollapseRows:arr];
        }
        else
        {
            // NEED TO ADD SECOND CELL HERE
            NSUInteger count=indexPath.row+1;
            NSMutableArray *arrCells=[NSMutableArray array];
            for(NSDictionary *dInner in arr)
            {
                [arrCells addObject:[NSIndexPath indexPathForRow:count inSection:0]];
                [self.itemsInTable insertObject:dInner atIndex:count++];
            }
            [self.main_tableview insertRowsAtIndexPaths:arrCells withRowAnimation:UITableViewRowAnimationNone];
        }
    }
}

Answer 1

在下面的代码中，我使用 .plist 文件创建了多级可扩展的 UITableView。

从.plist文件中读取数据

NSDictionary *dTmp = [[NSDictionary alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"data" ofType:@"plist"]];
self.arrayOriginal = [dTmp valueForKey:@"Objects"];

self.arForTable = [[NSMutableArray alloc] init];
[self.arForTable addObjectsFromArray:self.arrayOriginal];

UITableView 委托(delegate)和数据源的代码。

   // Customize the number of sections in the table view.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

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

// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";

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

    cell.textLabel.text=[[self.arForTable objectAtIndex:indexPath.row] valueForKey:@"name"];
    [cell setIndentationLevel:[[[self.arForTable objectAtIndex:indexPath.row] valueForKey:@"level"] intValue]];

    return cell;
}

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

    NSDictionary *d=[self.arForTable objectAtIndex:indexPath.row];
    if([d valueForKey:@"Objects"]) {
        NSArray *ar=[d valueForKey:@"Objects"];

        BOOL isAlreadyInserted=NO;

        for(NSDictionary *dInner in ar ){
            NSInteger index=[self.arForTable indexOfObjectIdenticalTo:dInner];
            isAlreadyInserted=(index>0 && index!=NSIntegerMax);
            if(isAlreadyInserted) break;
        }

        if(isAlreadyInserted) {
            [self miniMizeThisRows:ar];
        } else {
            NSUInteger count=indexPath.row+1;
            NSMutableArray *arCells=[NSMutableArray array];
            for(NSDictionary *dInner in ar ) {
                [arCells addObject:[NSIndexPath indexPathForRow:count inSection:0]];
                [self.arForTable insertObject:dInner atIndex:count++];
            }
            [tableView insertRowsAtIndexPaths:arCells withRowAnimation:UITableViewRowAnimationLeft];
        }
    }
}

-(void)miniMizeThisRows:(NSArray*)ar{

    for(NSDictionary *dInner in ar ) {
        NSUInteger indexToRemove=[self.arForTable indexOfObjectIdenticalTo:dInner];
        NSArray *arInner=[dInner valueForKey:@"Objects"];
        if(arInner && [arInner count]>0){
            [self miniMizeThisRows:arInner];
        }

        if([self.arForTable indexOfObjectIdenticalTo:dInner]!=NSNotFound) {
            [self.arForTable removeObjectIdenticalTo:dInner];
            [self.tblForCollapse deleteRowsAtIndexPaths:[NSArray arrayWithObject:
                                                    [NSIndexPath indexPathForRow:indexToRemove inSection:0]
                                                    ]
                                  withRowAnimation:UITableViewRowAnimationRight];
        }
    }
}

Download the sample code from here.

输出

希望这有助于满足您的要求。