objective-c - 无法弄清楚这个泄漏

Question

SettingsView *settings = [[SettingsView alloc] initWithNibName:@"SettingsView" bundle:[NSBundle mainBundle]];
settings.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self.navigationController presentModalViewController:settings animated:YES];
settings = nil;
[settings release];

Instruments 声称以下线路正在泄漏

[self.navigationController presentModalViewController:settings animated:YES];

Answer 1

您需要在将其设置为nil 之前释放settings，而不是之后!

您现在所做的与:

settings = nil;
[nil release];

因此 -release 被发送到 nil，而不是您的 SettingsView 对象。 (向 nil 发送任何消息都是 NOOP)。