Iphone removeFromSuperView…如何从每个controllerview中删除所有组件？

我有一个关于UITableView、堆栈和移除组件或可能在堆栈上隐藏组件的问题。 首先，我有一个添加组件（按钮）的功能

我在我的字典中调用这个函数

didSelectRowAtindexPath

到目前为止，一切顺利

现在是“有趣”部分。
我有另一个功能是附加到一个巴布托

这会在堆栈上推送下一个控制器

-(void)lastView:(id)sender
{
 selectedRow = [self.tableView indexPathForSelectedRow];

NSUInteger row = selectedRow.row;

NSUInteger section = selectedRow.section;

[self.tableView selectRowAtIndexPath:[NSIndexPath indexPathForRow:row inSection:section] animated:YES scrollPosition:UITableViewScrollPositionBottom];

[self tableView:[self tableView] didSelectRowAtIndexPath:selectedRow];

NSDictionary *dictionary = [self.tableDataSource objectAtIndex:selectedRow.row];

//Get the children of the present item.

NSArray *Children = [dictionary objectForKey:@"Children"];

rvController = [[RootViewController alloc] initWithNibName:@"RootViewController" bundle:[NSBundle mainBundle]];

//Increment the Current View

rvController.CurrentLevel += 1;

//Push the new table view on the stack

[self.navigationController pushViewController:rvController animated:NO];

rvController.tableDataSource = Children;

[rvController release];

}

}

我希望从屏幕上删除playButton，但不幸的是，removeFromSuperView不起作用。我猜这与在堆栈上按下一个新的rvController有关，因为当我这样做时，它确实完美地移除了我的按钮

是否有人知道我如何确保按钮从堆栈上的所有视图中移除，而不仅仅是看起来的“当前”视图

编辑：

这是另一个“有趣”的部分 如果我在这里输入一些伪代码（但它会推送另一个viewcontroller） 像这样：

-(void)lastView:(UITableview *)tableView selectingRow:(NSIndexPath *)indexPath
   {

    NSDictionary *dictionary = [self.tableDataSource objectAtIndex:indexPath.row];

    //Get the children of the present item.

    NSArray *Children = [dictionary objectForKey:@"Children"];

    rvController = [[RootViewController alloc] initWithNibName:@"RootViewController" bundle:[NSBundle mainBundle]];

    //Increment the Current View

    rvController.CurrentLevel += 1;

    //Push the new table view on the stack

    [self.navigationController pushViewController:rvController animated:NO];

    rvController.tableDataSource = Children;

    [rvController release];

    }

    }

---

然后它似乎起作用了。虽然我不是很确定，但它确实“看起来”像在工作

好的，很有趣。。当我这样写函数的时候。。一切都很好

selectedRow = [self.tableView indexPathForSelectedRow];

NSDictionary *dictionary = [self.tableDataSource objectAtIndex:selectedRow.row];

//Get the children of the present item.

NSArray *Children = [dictionary objectForKey:@"Children"];

rvController = [[RootViewController alloc] initWithNibName:@"RootViewController" bundle:[NSBundle mainBundle]];

//Increment the Current View

rvController.CurrentLevel += 1;

//Set the title;

rvController.CurrentTitle = [dictionary objectForKey:@"Title"];

//Push the new table view on the stack

[self.navigationController pushViewController:rvController animated:YES];

rvController.tableDataSource = Children;

[rvController release];

---

嗯，但是我仍然不完全满意，但是现在就必须这样做

您有多少个按钮实例？

selectedRow = [self.tableView indexPathForSelectedRow];

NSDictionary *dictionary = [self.tableDataSource objectAtIndex:selectedRow.row];

//Get the children of the present item.

NSArray *Children = [dictionary objectForKey:@"Children"];

rvController = [[RootViewController alloc] initWithNibName:@"RootViewController" bundle:[NSBundle mainBundle]];

//Increment the Current View

rvController.CurrentLevel += 1;

//Set the title;

rvController.CurrentTitle = [dictionary objectForKey:@"Title"];

//Push the new table view on the stack

[self.navigationController pushViewController:rvController animated:YES];

rvController.tableDataSource = Children;

[rvController release];