Question

我的iPhone应用程序要么因僵尸而崩溃，要么泄漏内存..我已经将其缩小到3行代码，并且通过注释/取消注释代码可以可靠地获得两件事之一。当结果列表（tableView）和包含地图和几个标签的详细信息页面之间导航时发生错误，内存泄漏发生在我第一次从地图导航回结果列表时，僵尸发生在5或之后6次导航到不同的结果并返回。

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>

#define METERS_PER_MILE 1609.344

@interface ResDetailsPageVC : UIViewController <MKMapViewDelegate, UIAlertViewDelegate>  {

UISegmentedControl *mapTypeSwitcher;
MKMapView *mapView;      

UILabel *nameLabel;
UIButton *addressLabel;
UILabel *telephoneLabel;

NSString *address;

}

@property (nonatomic, retain) IBOutlet UISegmentedControl *mapTypeSwitcher;
@property (nonatomic, retain) IBOutlet MKMapView *mapView;

@property (nonatomic, retain) IBOutlet UILabel *nameLabel;
@property (nonatomic, retain) IBOutlet UIButton *addressLabel;
@property (nonatomic, retain) IBOutlet UILabel *telephoneLabel;


- (IBAction)segmentedControlIndexChanged;
- (IBAction)callButtonClick;
- (IBAction)addressClick;

- (void) callNumber;

@end






@synthesize mapView;
@synthesize mapTypeSwitcher;

@synthesize nameLabel, addressLabel, telephoneLabel;

- (void)dealloc {

// if these lines are commented out - memory leak
// if not - zombie?!
/*self.telephoneLabel = nil;
self.addressLabel = nil;
self.nameLabel = nil;*/
self.mapView = nil;
self.mapTypeSwitcher = nil;

[super dealloc];

}

Answer 1

某处某些代码正在使用相同的对象，其地址存储在这三个属性中的一个中，但是另一段代码没有正确保留该对象。

Answer 2

我向你推荐这个：

- (void)dealloc {
[telephoneLabel release]; telephoneLabel = nil;
[addressLabel release]; addressLabel = nil;
....

[super dealloc];
}

内存泄漏与Zombie - iPhone

2 个答案: