Question

我有一个分组的tableview包含3个部分，我想为每个部分添加不同的按钮，我在第一部分有5个单元格，我想在第2个，3个和第4个单元格中只添加3个解扣。我的代码看起来像这样

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 3;
}


// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    if(section == 0)
        return [_arayfirstrow count];
    else if(section == 1)
        return [_arraysecondrow count];
    else  if(section == 2)
        return [_arraythirdrow count];
}
   // Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"Cell";
   // static NSUInteger nTag = 100;
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
        cell.textLabel.font = [UIFont fontWithName:@"Georgia"size:20.0];



    }

    // Set up the cell...
    if(indexPath.section == 0){
            cell.textLabel.text = [_arayfirstrow objectAtIndex:indexPath.row];
        NSString *imageName = [_arayfirstrowimg objectAtIndex:indexPath.row];
        cell.imageView.image = [UIImage imageNamed:imageName];

**//when i add below code for inserting button on the first section ,it successfully adds the button,but i don't need button for 1st and 5th cell..ans also it crashes when i tap the button for 2 or three time**

  CGRect buttonRect = CGRectMake(210, 25, 65, 25);
     UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
        button.frame = buttonRect;
        // set the button title here if it will always be the same
        [button setTitle:@"Action" forState:UIControlStateNormal];
        button.tag = 1;
        [button addTarget:self action:@selector(myAction:) forControlEvents:UIControlEventTouchUpInside];

        [cell.contentView insertSubview:button atIndex:0];



       // [usernamebutton release];

    }else if(indexPath.section == 1){
        cell.textLabel.text = [_arraysecondrow objectAtIndex:indexPath.row];
    }
    else if(indexPath.section == 2)
    {
        cell.textLabel.text = [_arraythirdrow objectAtIndex:indexPath.row];

    }
    return cell;
}

有没有解决方案可以解决这个问题。提前谢谢。

Answer 1

您可以尝试这样：

if(indexPath.section == 0)
{
    if(indexPath.row == 1||indexPath.row == 2||indexPath.row == 3)
    {
        CGRect buttonRect = CGRectMake(210, 25, 65, 25);
        UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
        button.frame = buttonRect;
        // set the button title here if it will always be the same
        [button setTitle:@"Action" forState:UIControlStateNormal];
        button.tag = 1;
        [button addTarget:self action:@selector(myAction:) forControlEvents:UIControlEventTouchUpInside];
        [cell.contentView addSubView:button atIndex:0];
    }
}

您是否定义了方法myAction:？如果没有，它可能会使您的应用程序崩溃。

Answer 2

首先，这很容易：

将UITableViewCell的子类添加到项目中，插入标题并在委托方法中添加单元格，如下所示：

static NSString *CellIdentifier = @"SpecialCell";
// static NSUInteger nTag = 100;
YourTableViewCellClass *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (specialCell == nil) {
    specialCell = [[[YourTableViewCellClass alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}

在新的Cell类中，使用

添加按钮和视图

[self addSubview:button];

这是您的特殊细胞，第一部分是第2，第3和第4细胞的细胞。

就像您已经做的那样，以与上面相同的方式启动标准单元格。现在来了魔术：

if(indexPath.section == 0){
    if(indexPath.row == 1||indexPath.row == 2||indexPath.row == 3){
        //add text to buttons of your specialCell
        //add color...
        return specialCell;
    } else {
        return cell;
    }
}

只是一个小概述，它是如何完成的。希望有所帮助。

Answer 3

if(indexPath.section == 0)
{
    if(indexPath.row == 1||indexPath.row == 2||indexPath.row == 3)
    {    

UIButton *deletebtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
            [deletebtn setFrame:CGRectMake(170,5, 25, 25)];
            deletebtn.tag=indexPath.row;
            [deletebtn setImage:[UIImage imageNamed:@"log_delete_touch.png"] forState:UIControlStateNormal];
            [deletebtn addTarget:self action:@selector(DeleteRow:) forControlEvents:UIControlEventTouchUpInside];
            [cell addSubview:deletebtn];
}
}

将UIButton添加到UItableview单元格

3 个答案: