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我知道这是一个非常愚蠢的问题，但我有一个视图控制器，其中有一个mapview和一些uibuttons我已经做了每一个thng以消除所有的泄漏bt仍然2-3后切换两控制器应用程序崩溃。以下是分配和解除分配的代码。 BTW我没有得到任何 “没有recive memoru警告” ..日Thnx很多可能的内存泄漏
.H/
@interface MapView : BaseViewController <MKMapViewDelegate,MKAnnotation> {
MKMapView *mapView;
NSMutableArray *placeName;
NSString *mid;
UISegmentedControl *segmentedControl;
IBOutlet UILabel *numberofbeeps;
NSInteger badgenumber;
}
@property (nonatomic, retain) UILabel *numberofbeeps;
@property(nonatomic, retain) NSString *mid;
@property (nonatomic, retain) IBOutlet MKMapView *mapView;
@property(nonatomic,retain) NSMutableArray *placeName;
@property (nonatomic,retain) IBOutlet UISegmentedControl *segmentedControl;
-(IBAction)refreshButtonPressed:(id)sender;
-(IBAction) segmentedControlIndexChanged;
-(IBAction)SignUpButtonPressed:(id)sender;
-(IBAction)BackButtonPressed:(id)sender;
-(IBAction)AddBeepButtonPressed:(id)sender;
-(id)initWithAnnotation:(id) annotation;
-(IBAction)sliderChanged:(id)sender;
-(IBAction)MyAccountPageButtonPressed:(id)sender;
-(IBAction)MyBeepsButtonPressed:(id)sender;
@end
的.m/
-(void)network:(WNetwork*)network didFinishLoadingWithRequest:(NSInteger)pReq data:(NSMutableDictionary*)pData
{
[self removeLoader];
switch (pReq) {
case JBJsonParser:
{
NSMutableArray *array = [NSMutableArray new];
self.placeName = array;
[array release];
self.placeName = pData;
badgenumber = [placeName count];
NSString *checkstring = [[AppHelper mDataManager] objectForKey:@"numberofbeepsnearby"];
NSInteger check = [checkstring intValue];
switch (check) {
case 0:
{
self.numberofbeeps.text =[NSString stringWithFormat:@"No beeps found nearby. Why not beep something?"];
NSLog(@"%@",checkstring);
}
break;
case 1:
{
self.numberofbeeps.text =[NSString stringWithFormat:@"%@ beep found nearby! %d beeps worldwide.",checkstring,badgenumber];
NSLog(@"%@",checkstring);
}
break;
default:
{
self.numberofbeeps.text =[NSString stringWithFormat:@"%@ beeps found nearby! %d beeps worldwide.",checkstring,badgenumber];
NSLog(@"%@",checkstring);
}
break;
}
if ([placeName count])
{
for (int i =0; i < [placeName count]; i++)
{
NSDictionary *dict = [placeName objectAtIndex:i];
CLLocationCoordinate2D coordinatemain;
coordinatemain.latitude = [[dict objectForKey:@"Lat"] doubleValue];
coordinatemain.longitude = [[dict objectForKey:@"long"] doubleValue];
DLog(@"id of Beeps %@", mid);
NSString *username = [NSString stringWithFormat:@"by %@",[dict objectForKey:@"username"]];
MyAnnotation *ann = [[MyAnnotation alloc] init];
ann.title = [dict objectForKey:@"beep"];
ann.subtitle = username;
ann.beepid=[dict objectForKey:@"beepid"];
ann.coordinate = coordinatemain;
ann.coordinate.latitude == [[dict objectForKey:@"Lat"] doubleValue];
ann.coordinate.longitude == [[dict objectForKey:@"long"] doubleValue];
[mapView addAnnotation:ann];
[ann release];
}
}
}
break;
default:
break;
}
}
-(IBAction) segmentedControlIndexChanged{
switch (self.segmentedControl.selectedSegmentIndex) {
case 0:
{
Screen1 *objCont = [[Screen1 alloc] initWithNibName:@"Screen1" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
break;
case 1:
{
MapView *objCont = [[MapView alloc] initWithNibName:@"MapView" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
break;
default:
break;
}
}
#pragma mark -
#pragma mark request delegates
-(void)makeAccomodationRequest
{
NSMutableDictionary *paramDic = [[NSMutableDictionary alloc] init];
[self.mWNetowrk makeRequsetWithURL:URL_Showbeepsmap type:JBJsonParser paramDictionary:paramDic delegate:self];
[paramDic autorelease];
}
-(BOOL)network:(WNetwork*)network shouldStartForRequest:(NSInteger)pReq
{
[self addLoaderWithtext:@"Loading"];
return YES;
}
-(void)network:(WNetwork*)network didFailForRequest:(NSInteger)pReq WithError:(NSString*)error
{
[AppHelper showAlert:error];
[self removeLoader];
}
-(void)initializeView
{
[self initializeOutlets];
[self makeAccomodationRequest];
}
-(void)initializeOutlets
{
}
-(IBAction)BackButtonPressed:(id)sender
{
Screen1 *objCont = [[Screen1 alloc] initWithNibName:@"Screen1" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
-(IBAction)refreshButtonPressed:(id)sender
{
MapView *objCont = [[MapView alloc] initWithNibName:@"MapView" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
-(IBAction)MyAccountPageButtonPressed:(id)sender
{
NSString *sid = [[AppHelper mDataManager] objectForKey:@"logout"];
{
NSDecimalNumber *session = [[AppHelper mDataManager] objectForKey:@"sid"];
if ([sid isEqualToString:@"logged out"]||session==NULL) {
AddPlace *objCont = [[AddPlace alloc] initWithNibName:@"AddPlace" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
else {
MyAccountPage *objCont = [[MyAccountPage alloc] initWithNibName:@"MyAccountPage" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
}
}
-(IBAction)MyBeepsButtonPressed:(id)sender
{
NSString *sid = [[AppHelper mDataManager] objectForKey:@"logout"];
NSDecimalNumber *session = [[AppHelper mDataManager] objectForKey:@"sid"];
//NSString *sessionStr = [session stringValue];
if ([sid isEqualToString:@"logged out"]||session==NULL) {
[[AppHelper mDataManager] setValue:@"MyBeeps" forKey:@"appflow"];
AddPlace *objCont = [[AddPlace alloc] initWithNibName:@"AddPlace" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
else {
MyBeeps1 *objCont = [[MyBeeps1 alloc] initWithNibName:@"MyBeeps1" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
}
-(IBAction)AddBeepButtonPressed:(id)sender
{
NSString *sid = [[AppHelper mDataManager] objectForKey:@"logout"];
NSDecimalNumber *session = [[AppHelper mDataManager] objectForKey:@"sid"];
if([sid isEqualToString:@"logged out"]||session==NULL) {
[[AppHelper mDataManager] setValue:@"Addabeep" forKey:@"appflow"];
AddPlace *objCont = [[AddPlace alloc] initWithNibName:@"AddPlace" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
else {
[[AppHelper mDataManager] setValue:@"Addabeep" forKey:@"appflow"];
Check20M *objCont = [[Check20M alloc] initWithNibName:@"Check20M" bundle:nil];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve ;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
}
#pragma mark -
#pragma mark MKMapViewDelegate
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if (annotation == mapView.userLocation) {
// NSLog(@"nil");
return nil; }
MKPinAnnotationView *pinView = nil;
static NSString *defaultPinID = @"com.invasivecode.pin";
pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if (pinView == nil)
pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
pinView.pinColor = MKPinAnnotationColorGreen;
pinView.frame=CGRectMake(0, 0, 30, 30);
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
MyAnnotation *temp = (MyAnnotation*)annotation;
infoButton.tag = [temp.beepid integerValue];
[infoButton addTarget:self action:@selector(showDetails:) forControlEvents:UIControlEventTouchUpInside];
pinView.rightCalloutAccessoryView = infoButton;
[defaultPinID release];
return pinView;
}
-(IBAction)showDetails:(id)sender{
UIButton *button = (UIButton*)sender ;
NSLog(@"Annotation Click");
BeepsDetail *objCont = [[BeepsDetail alloc] initWithNibName:@"BeepsDetail" bundle:nil];
objCont.mId = [NSString stringWithFormat:@"%d",button.tag];
objCont.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController: objCont animated: YES];
[objCont release];
}
#pragma mark -
#pragma mark mapView delegates
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
mapView.delegate = self;
[self initializeView];
mapView.showsUserLocation = YES;
[self makeAccomodationRequest];
CLLocation *location = [[AppHelper appDelegate] mLatestLocation];
MKCoordinateRegion region;
region.center.latitude = location.coordinate.latitude;
region.center.longitude = location.coordinate.longitude;
region.span.latitudeDelta = 0.001;
// Add a little extra space on the sides
region.span.longitudeDelta = 0.001;
// Add a little extra space on the sides
region = [mapView regionThatFits:region];
[mapView setRegion:region animated:YES];
}
// Listen to change in the userLocation
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
self.mapView = nil;
self.numberofbeeps =nil;
self.mapView = nil;
self.segmentedControl = nil;
}
- (void)dealloc
{
[mapView release];
// [self.mapView removeFromSuperview];
[placeName release];
//[mid autorelease];
[super dealloc];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc. that aren't in use.
}
@end
发布崩溃日志和堆栈跟踪。此外，泄漏不会导致崩溃，过度释放。打开NSZombies以帮助查找与内存相关的崩溃，并添加异常断点。 – zaph
我没有得到任何日志除了 （gdb）.. – iPhoneDev
不是你的崩溃的解释，但：你不释放中viewDidUnload - 是故意的？另外，你应该释放dealloc中的所有内容，而不仅仅是mapView和placeName。无论如何，就像@CocoaFu所说的那样，泄漏本身不会导致崩溃。除了这段代码，你还没有在这个课上有什么其他的... –