我從UIImagePickerControllerSourceTypeCamera拍照后出現內存泄漏

Question

在我的應用程序中，我啟動相機以使用戶拍照：

    UIImagePickerController *imagePickerControllerSubject = [[UIImagePickerController alloc] init];

    imagePickerControllerSubject.delegate = self;

    imagePickerControllerSubject.sourceType =  UIImagePickerControllerSourceTypeCamera;

    [self presentModalViewController:imagePickerControllerSubject animated:YES];

拍照后，我發現內存泄漏，您可以從Xcode Instrument中查看我的屏幕截圖。

我隔離了代碼。 我確定它來自相機，而不是來自我的應用程序，我在didFinishPickingImage函數中沒有留下任何內容。

    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
    {

           [picker dismissModalViewControllerAnimated:YES];

           return;

    }

我使用ARC，所以不需要釋放imagePickerControllerSubject

這是Xcode Instruments的屏幕截圖

我使用最新版本的ios7

任何想法 ？

謝謝

編輯

我在這里過去了我的視圖控制器的整個代碼。 再簡單不過了。 並且不要忘記，只有在iOS 7且源類型為camera的情況下，我才會出現此內存泄漏。

    #import "FeedbackVC.h"

    @interface FeedbackVC ()

    @end

    @implementation FeedbackVC

    - (IBAction)onClickTakePicture
    {

        NSLog(@"onClickTakePicture");

        imagePickerControllerSubject = [[UIImagePickerController alloc] init];

        imagePickerControllerSubject.delegate = self;

        imagePickerControllerSubject.sourceType =               UIImagePickerControllerSourceTypeCamera;

        [self presentModalViewController:imagePickerControllerSubject animated:YES];

    }

     - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
     {


         picker.delegate = nil;
         [self dismissViewControllerAnimated:NO completion:nil];
         picker = nil;

         NSLog(@"imagePickerController");

     }

     - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
     {
        self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

        if (self)
        {
            // Custom initialization
            if (self)
            {
              self.navigationItem.title = @"Feedback";

              self.title = @"Feedback";

              self.tabBarItem.image = [UIImage imageNamed:@"second"];
            }

        }


        return self;
    }

    - (void)viewDidLoad
    {
       [super viewDidLoad];

    }

     - (void)didReceiveMemoryWarning
     {
          [super didReceiveMemoryWarning];
          // Dispose of any resources that can be recreated.
     }

     @end

Answer 1

在：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo

嘗試：

picker.delegate = nil
[self dismissViewControllerAnimated:NO completion:nil];
picker = nil;