释放已分配 UIView 的 NSMutableArray 也会释放 UIView 吗？

发布于 2024-11-05 23:59:03 字数 374 浏览 0 评论 0原文

好的，这就是我正在做的事情。

NSMutableArray *array = [[NSMutableArray alloc] init];  

UIView *tempview = [[UIView alloc] initWithFrame:CGRectMake(15, 30, 320, 460)];
[array addObject:tempView];

UIView *tempview2 = [[UIView alloc] initWithFrame:CGRectMake(15, 30, 320, 460)];
[array addObject:tempView2];

[array release];

数组的释放会同时释放两个分配的UIView吗？

原文

Ok so here's what I'm doing.

NSMutableArray *array = [[NSMutableArray alloc] init];  

UIView *tempview = [[UIView alloc] initWithFrame:CGRectMake(15, 30, 320, 460)];
[array addObject:tempView];

UIView *tempview2 = [[UIView alloc] initWithFrame:CGRectMake(15, 30, 320, 460)];
[array addObject:tempView2];

[array release];

Will the releasing of the array, release the two allocated UIViews as well?

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狼性发作 2024-11-12 23:59:03

如果您复制、分配、保留或新某些内容，您有责任发送它release 或 autorelease。

您说过[[UIView alloc] init...]，因此您必须释放生成的对象。

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匿名的好友 2024-11-12 23:59:03

自创建视图以来，您有责任释放它们。过程如下：

您创建保留计数为 1 的视图。
当它们被添加到数组中时，它将保留它们（保留计数 = 2）。
当您释放数组时，它将释放视图（保留计数 = 1）。
你仍然需要释放它们。

正确的代码是：

NSMutableArray *array = [[NSMutableArray alloc] init];  

UIView *tempview = [[UIView alloc] initWithFrame:CGRectMake(15, 30, 320, 460)];
[array addObject:tempView];
[tempview release];

UIView *tempview2 = [[UIView alloc] initWithFrame:CGRectMake(15, 30, 320, 460)];
[array addObject:tempView2];
[tempview2 release];

[array release];

You are responsible for releasing the views since you created them. Here is how it goes:

You create the views with a retain count of 1.
When they are added to the array, it will retain them (retain count = 2).
When you release the array, it will release the views (retain count = 1).
You still need to release them.

The correct code would be:

NSMutableArray *array = [[NSMutableArray alloc] init];  

UIView *tempview = [[UIView alloc] initWithFrame:CGRectMake(15, 30, 320, 460)];
[array addObject:tempView];
[tempview release];

UIView *tempview2 = [[UIView alloc] initWithFrame:CGRectMake(15, 30, 320, 460)];
[array addObject:tempView2];
[tempview2 release];

[array release];

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