在我的应用程序中，我启动相机让用户拍照：
UIImagePickerController *imagePickerControllerSubject = [[UIImagePickerController alloc] init];
imagePickerControllerSubject.delegate = self;
imagePickerControllerSubject.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentModalViewController:imagePickerControllerSubject animated:YES];
拍完照片后，我遇到了内存泄漏，你可以从 Xcode Instrument 看到我的截图。
我隔离了代码。我确定它来自相机，而不是来自我的应用程序，我在 didFinishPickingImage 函数中没有留下任何东西。
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
{
[picker dismissModalViewControllerAnimated:YES];
return;
}
我使用 ARC，所以我不需要发布 imagePickerControllerSubject
这是来自 Xcode Instruments 的屏幕截图
我用的是最新版本的ios7
任何想法 ？
谢谢
编辑
我在这里传递了我的视图控制器的整个代码。再简单不过了。并且不要忘记我只有在 iOS 7 和源类型是相机时才会出现这种内存泄漏。
#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