将 UIPickerView 添加到 UITableViewCell [英] Adding UIPickerView to a UITableViewCell

问题描述

我想将 UIPickerView 添加到 UITableViewCell.现在我只是得到一个黑色的窗口.有人还可以向我解释将 UI 对象子类化为单元格的概念，即:我们什么时候将单元格作为委托和数据源委托?谢谢

I want to add a UIPickerView to a UITableViewCell. Right now I am just getting a black window. Can someone also explain me the concept of subclassing UI objects to a cell ie:when do we make our cell as the delegate and the datasource delegate? Thanks

这是我现在正在做的代码

Here is the code of what i am doing right now

 case 1:  {
        cell = [tableView dequeueReusableCellWithIdentifier:@"groups"];
        if (cell == nil) {
            cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"groups"];
        }
            /*NSString *myGroupDetail = [_groupArray objectAtIndex:indexPath.row];
            NSLog(@"the group detail label is %@",myGroupDetail);
            cell.textLabel.text = myGroupDetail;
            */
        [cell addSubview:_groupPicker];

        break;

    }

组是我想要选择器视图的部分，我从数组中获取数据.

The groups is the section in which I want the picker view, I am getting that data from an array.

推荐答案

您必须在 tableviewdelegate 的 cellForRow 方法中分配和初始化一个选择器视图.我会为您绘制草图 =) 如果您稍微搜索一下，应该不难发现如何初始化单元格本身；-)

you would have to allocate and initialize a pickerview in your cellForRow method of the tableviewdelegate. ill sketch it for you =) how to initialize a cell itself should not be hard to find out if you google a bit ;-)

...(tableView *)... cellForRowAtIndexPath... {

if(indexPath.row == pickerRow){
    UIPickerView *pickerView = [[UIPickerView alloc]init];
    cell = ... // alloc and initialize a cell
    cell addSubview:pickerView];
    }
else{ // your other cells }   

return cell;
}

更新:我目前在使用 git 时遇到问题，所以我上传了一个示例项目到我的私人服务器:UITablePicker 示例

UPDATE: im currently having trouble with git, so i uploaded a sample project to my private server: UITablePicker example

github:https://github.com/sebamisc/UItableViewWithPicker

你可以随意修改和使用代码=)

yu can modify and use the code however you want =)

塞巴斯蒂安

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