目标C内存管理 [英] Objective C Memory Management

问题描述

我是Objective C的新手，似乎无法正确获取内存管理代码。我有以下代码：

I'm new to Objective C and can't seem to get the memory management code right. I have the following code:

Media* myMedia = [self.myMediaManager getNextMedia];

self.navigationItem.title = [self.myMediaManager getCategory];
[self.btnImage setImage:myMedia.imageFile forState: UIControlStateNormal];
[self.lblImage setText:myMedia.imageLabel];


//[myMedia release];

如果我取消注释上述行，我的应用程序崩溃了。我实例化myMedia时是否需要做一些特别的事情？

My app crashes if I uncomment the above line. Do I need to do something special when I instantiate myMedia?

编辑：

如果myMediaManager应该发布它什么时候会这样做。这是我的getNextMedia代码：

If myMediaManager is supposed to release it, when would it do that. Here is my code for getNextMedia:

- (Media*) getNextMedia {

DLog(@"Start");

Media* nextMedia = [[Media alloc] init];

[self setNextMediaIndex];

if (self.mediaIndex > -1)
{
    nextMedia = [mediaArray objectAtIndex: self.mediaIndex];
}

return nextMedia;
}

EDIT2：我解决了崩溃的问题（我发布了一个我没做过的对象'我自己）。我仍然看到泄漏，似乎无法找到问题所在。

I fixed the crashing issue (I was releasing an object I didn't own). I still see leaks and can't seem to find what the issue is.

推荐答案

只有你拥有的对象可以发布。

如果 new 你可以发布对象， alloc ， copy ， mutableCopy 或首先保留。

Only objects that you own can be released.

You can release objects if you new, alloc, copy, mutableCopy or retain them first.

由于中没有alloc / copy / retain [ self.myMediaManager getNextMedia]; 你无法释放它。

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