是removeFromSuperview发布对象吗？ [英] is removeFromSuperview releases the object?

问题描述

我正在使用 removeFromSuperview 从其超级视图中删除视图。我也在该对象的 removeFromSuperview 之后使用 release ，有时它的工作正常，但有时会给出错误的访问权限。

I am using removeFromSuperview for removing a view from its superview. I am also using release after removeFromSuperview on that object, sometimes its work fine but sometimes give bad access.

removeFromSuperview 还要调用发布到对象？

推荐答案

是的， removeFromSuperview 也发布视图。

您需要在将视图添加到超级视图后发布视图。

You need to release your view after you have added it to its superview.

CGRect frame; // let's assume you already have defined frame and superview
UIView *superview;

UIView *subview = [[UIView alloc] initWithFrame:frame];
[superview addSubview:subview];
[subview release];

或者只是在创建时使用 autorelease 一个视图。

Or just use autorelease, when you create a view.

UIView *subview = [[[UIView alloc] initWithFrame:frame] autorelease];
[superview addSubview:subview];

在这两种情况下，您都不需要致电发布致电 removeFromSuperview 。

In both cases, you don't need to call release after you call removeFromSuperview.

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