从滚动视图中删除标签
我正在创建一个 iPhone 应用程序，其中使用滚动视图并添加如下标签：
question = [[UILabel alloc] initWithFrame:CGRectMake(22, 130, 725, 160)] ;
question.textColor = [UIColor blueColor];
question.text = [NSString stringWithFormat:@"%@" ,selected];
question.lineBreakMode = UILineBreakModeWordWrap;
[question setFont:[UIFont fontWithName:@"Futura" size:30]];
question.backgroundColor = [UIColor clearColor];
question.numberOfLines = 0;
[question sizeToFit];
[self.view addSubview:question];
[scrollview addSubview:question];
现在我想从滚动视图中删除此标签。那么我该怎么做呢..??
我这样做是为了从主视图中删除对象。
[question removeFromSuperview];
谢谢。
I am creating an iPhone app in which i am using scrollview and adding labels like this :
question = [[UILabel alloc] initWithFrame:CGRectMake(22, 130, 725, 160)] ;
question.textColor = [UIColor blueColor];
question.text = [NSString stringWithFormat:@"%@" ,selected];
question.lineBreakMode = UILineBreakModeWordWrap;
[question setFont:[UIFont fontWithName:@"Futura" size:30]];
question.backgroundColor = [UIColor clearColor];
question.numberOfLines = 0;
[question sizeToFit];
[self.view addSubview:question];
[scrollview addSubview:question];
now i want to remove this label from scrollview. So how can i do this..??
i am doing this for remove object from main view.
[question removeFromSuperview];
Thanks.
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您的代码中存在一些问题。我假设滚动视图是 self.view 的子视图。在这种情况下，
请从代码中删除该行。根据代码的其余部分，我最终也会更改第一行。如果您不需要在代码中的其他位置超出标签，我会将第一行更改为
并在
[scrollview addSubview: Question];之后添加一行，这会减少内存消耗。
There are some problems in your code. I assume that the scrollview is a subview of
self.view. In this case remove the linefrom you code. Depending on the rest of your code I would eventually also change the first line. If you don't need to excess the label somewhere else in your code I would change the first line to
and add a line after
[scrollview addSubview: question];withThis would reduce you memory consumption.
为什么要向主视图和滚动视图添加
问题？这没有道理。删除[self.view addSubview:question];行和[question removeFromSuperview];将从滚动视图中删除标签。Why are you adding
questionto the main view and to the scroll view? It doesn't make sense. Remove the[self.view addSubview:question];line and[question removeFromSuperview];will remove your label from the scrollview.