Iphone 目标c使用uisegmentcontrol切换视图时内存泄漏

我有一个我不明白的内存泄漏。我使用以下分段控件切换视图：

- (void)didChangeSegmentControl:(UISegmentedControl *)control {
    if (self.activeViewController) {
        [self.activeViewController viewWillDisappear:NO];
        [self.activeViewController.view removeFromSuperview];
        [self.activeViewController viewDidDisappear:NO];
    }

    self.activeViewController = [self.segmentedViewControllers objectAtIndex:control.selectedSegmentIndex];


    [self.activeViewController viewWillAppear:NO];
    [self.containerView addSubview:self.activeViewController.view];//Here is the memory leak
    [self.activeViewController viewDidAppear:NO];

    [self BuildBottomBarButtons];   

}  

我在仪器中发现了泄漏，我不知道为什么。。。 谢谢

编辑： BuildBottomBarButtons：

-(void) BuildBottomBarButtons{


    //create toolbar using new
    UIToolbar *toolbar = [UIToolbar new];   
    toolbar.barStyle = UIBarStyleBlackTranslucent;  
    [toolbar sizeToFit];    
    toolbar.frame = CGRectMake(0, 330, 320, 50);

    //Add buttons       
    UIBarButtonItem *systemItem1 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction                                                                                  target:self                                                                                     action:@selector(shareClicked)];

    UIBarButtonItem *systemItem2 = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"scroll left.PNG"] style:UIBarButtonItemStylePlain target:self action:@selector(upClicked)];

    UIBarButtonItem *systemItem3 = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"scroll right.PNG"] style:UIBarButtonItemStylePlain target:self action:@selector(downClicked)];

    //Use this to put space in between your toolbox buttons 
    UIBarButtonItem *fixItem50 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace   target:nil      action:nil];
    UIBarButtonItem *fixItem70 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace   target:nil      action:nil];
    fixItem50.width = 50;
    fixItem70.width = 64;
    //Add buttons to the array      
    NSArray *items = [NSArray arrayWithObjects: systemItem1, fixItem70, systemItem2, fixItem50,systemItem3, nil];

    //release buttons   
    [systemItem1 release];  
    [systemItem2 release];  
    [systemItem3 release];  
    [fixItem70 release];
    [fixItem50 release];

    //add array of buttons to toolbar
    [toolbar setItems:items animated:NO];

    [self.containerView addSubview:toolbar];
    [toolbar release];
}

self.segmentedViewControllers初始化方法是：

- (NSMutableArray *)segmentedViewControllerContent {
    JobGeneralDetailsController * controller1 = [[JobGeneralDetailsController alloc] initWithSelectedRowID:selectedRowID andWithJobBoardID:jobBoardId andWithJobDetails:jobDetails];
    [controller1 setViewType:jobDetailsViewType];
    //initWithParentViewController:self];
    JobMapDetailsController * controller2 = [[JobMapDetailsController alloc] initWithJobDetails:jobDetails];//[[AustraliaViewController alloc] initWithParentViewController:self];

    [controller1 setJobMapDetailsController: controller2];


    JobReviewsController *controller3 = [[JobReviewsController alloc] initWithStyle:UITableViewStyleGrouped];

    [controller3 setJobDetails:jobDetails];
    [controller3 setViewType:jobDetailsViewType];

    [controller1 setJobReviewsController: controller3];

    NSMutableArray * controllers = [NSMutableArray arrayWithObjects:controller1, controller2, controller3,nil];

    [controller1 release];
    [controller2 release];
    [controller3 release];

    return controllers;
}

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我唯一能指出的是[自建底部按钮]

看看你的代码，我能看到的唯一问题是[self-BuildBottomBarButtons]

每次切换视图控制器时，似乎都在将工具栏添加到容器视图中

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Instruments说什么类型的对象泄漏，是否可以看到Instruments屏幕上显示泄漏对象的屏幕截图？

泄漏不在您提供的代码中，但可能是由此代码中的某些内容触发的。你能告诉我们BuildBottomBarButtons方法吗？此外，方法应该以小写字母开头，即使对于类方法也是如此。该规则的唯一例外是首字母缩写词，如仪器中的-[NSString UTF8String]，可以看到泄漏可能所在的线路。你看到了吗？它指向哪一行？泄漏的行是：[self.containerView addSubview:self.activeViewController.view]；我拆下了BuildBottomBarButtons的线，泄漏还在这里。现在它在同一个漏洞中有另一条管线。在viewDidLoad中，我调用了具有以下泄漏的BindViews:companyName.text=[jobDetails objectForKey:@companyName]；是否可以看到泄漏块列表的屏幕，以便我们可以看到泄漏对象的类型。看看你的代码，我看不出有什么问题。我唯一能想到的建议是检查视图控制器中的代码。您是否在视图控制器上的ViewWillDisplay、ViewDidDisplay方法中执行任何操作？