Question

我一直在努力解决程序中的内存泄漏问题，而我却陷入了一些困境。奇怪的是，当我使用CoreLocation获取gps位置时，它们就来了。代码正确返回该位置，但它在整个地方泄漏：CFHTTPMessage，CFURLConnection，CFURLRequest，CFURLResponse，GeneralBlock-16，-32，-48，HTTPRequest等...有谁可以指导我如何解决这个问题？

MyCLController的初始化

locationController = [[MyCLController alloc] init];
locationController.delegate = self;
[locationController.locationManager startUpdatingLocation];

做一些事情并通过代表回电：

[locationController release];

MyCLController.h：

#import <Foundation/Foundation.h>
@protocol MyCLControllerDelegate 
@required
- (void)locationUpdate:(CLLocation *)location;
- (void)locationError:(NSError *)error;
@end
@interface MyCLController : NSObject  {
    CLLocationManager *locationManager;
    id delegate;
}
@property (nonatomic, retain) CLLocationManager *locationManager;
@property (nonatomic, assign) id  delegate;

- (void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation
           fromLocation:(CLLocation *)oldLocation;

- (void)locationManager:(CLLocationManager *)manager
       didFailWithError:(NSError *)error;
@end

MyCLController.m：

#import "MyCLController.h"
@implementation MyCLController
@synthesize locationManager;
@synthesize delegate;

- (id) init {
    self = [super init];
    if (self != nil) {
        self.locationManager = [[[CLLocationManager alloc] init] autorelease];
        self.locationManager.delegate = self; // send loc updates to myself
    }
    return self;
}

- (void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation
           fromLocation:(CLLocation *)oldLocation {
    [locationManager stopUpdatingLocation];

    [self.delegate locationUpdate:newLocation];
}

- (void)locationManager:(CLLocationManager *)manager
       didFailWithError:(NSError *)error {
    [self.delegate locationError:error];
}
- (void)dealloc {
    [super dealloc];
}
@end

Answer 1

您需要释放LocationManager。确保在释放之前将其委托设置为NULL。而且，返回第一个结果并不是一个好主意。确保水平精度不低于0也低于某个阈值，如5000米。为了使其更加健壮，您可能需要添加一个计时器，以便在给定的时间后停止，如果它无法准确找到您的位置。

Answer 2

你永远不会发布locationController

iPhone帮助：CoreLocation框架中奇怪的内存泄漏

2 个答案: