Question

我想当行上的标签时，包含两个按钮的UIView出现在单元格的中心，所以我做了以下代码

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    //how can I get the text of the cell here?
    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];

    UIView *v = [[UIView alloc] init];

    v.center  = cell.center;

    UIButton*button1 =[[UIButton alloc] init];

    button1.frame = CGRectMake(v.center.x - 5 , v.center.y  , 5 , v.center.y + 4  );
    button1.titleLabel.text = @"I'm label 1";

    [v addSubview: button1];

    UIButton*button2 =[[UIButton alloc] init];

    button2.frame = CGRectMake(v.center.x - + 1 , v.center.y  , 5 , v.center.y + 4  );
    button2.titleLabel.text = @"I'm label 2";

    [v addSubview: button2];

    [cell addSubview:v];

    /*
     <#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:@"<#Nib name#>" bundle:nil];
     // ...
     // Pass the selected object to the new view controller.
     [self.navigationController pushViewController:detailViewController animated:YES];
     [detailViewController release];
     */
}

UIView没有出现。怎么解决？

Answer 1

尝试：

[cell.contentView addSubview: v];

它应该有用。

编辑：试试这个代码。相应地给出框架，它会起作用。

UIView *v = [[UIView alloc] initWithFrame:CGRectMake(44, 100, 200, 200)];
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(0, 0, 50, 50);
[v addSubview:button];

UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
[cell.contentView addSubview:v];

Answer 2

UIView *v = [[UIView alloc] init];//You have not set the frame of the v;

Answer 3

initWithFrame是视图的指定初始化程序。

由于您使用init，因此无法知道要创建的视图的大小。

UIButton *button1 = [[UIButton alloc] init];也不正确。 UIButtons是使用buttonWithType:类方法创建的。

在行选择中添加uiview

3 个答案: