1
지난 며칠 동안 간단한 애프터 마노 지에 MKMapView을 구현하는 방법을 이해하는 데 어려움을 겪었습니다. 불행하게도 내가 뭘 잘못하고 있는지를 판단 할 수 없었고 그 과정에서 점점 더 좌절하게되었습니다.iPhone에서 MKMapKit 관련 크래시를 피하는 방법
내가 성취하려는 것은 상대적으로 간단해야합니다. 새로운 객체를 만들려고합니다. 위치는 연관된 객체입니다. 이렇게하려면 개체를 만들기위한보기 컨트롤러가 있습니다. 사용자가 원하는 경우 언제든지보기 컨트롤러를 취소 할 수 있기를 원하지만 개체를 저장하려면 먼저 위치와 이름을 제공해야합니다. 이름은 UITextField을 통해 가져 오며 위치는 MKMapView를 통해 가져옵니다.
그래서 다음과 같이됩니다. 새 객체보기 컨트롤러를 열 때마다 위치 및 기타 등등이 업데이트됩니다. 취소를 클릭하면 충돌이 발생합니다. 문제를 단순화하기 위해 위치를 업데이트하고 주석 핀을 이동하는 코드를 제거 했으므로 아래에서 볼 수 없습니다.
다음은 충돌 후 발생한 스택 추적 예제 외에도 사용중인 코드 중 일부입니다. 당신이 제공 할 수있는 어떤 도움도 크게 감사 할 것입니다. 감사! 충돌
#1 0x30c4c8b8 in -[UIImageView stopAnimating]
#2 0x30c4c810 in -[UIImageView dealloc]
#3 0x32d86640 in -[NSObject release]
#4 0x32d198ac in -[MKAnnotationView dealloc]
#5 0x32d86640 in -[NSObject release]
#6 0x30bfab34 in -[UIView(Hierarchy) removeFromSuperview]
#7 0x30c4ca24 in -[UIView dealloc]
#8 0x32ce881c in -[MKOverlayView dealloc]
#9 0x32d86640 in -[NSObject release]
#10 0x30bfab34 in -[UIView(Hierarchy) removeFromSuperview]
#11 0x30c4ca24 in -[UIView dealloc]
#12 0x30cbb878 in -[UIScrollView dealloc]
#13 0x32d179c4 in -[MKScrollView dealloc]
#14 0x32d86640 in -[NSObject release]
#15 0x30bfab34 in -[UIView(Hierarchy) removeFromSuperview]
#16 0x30cbb4a8 in -[UIScrollView removeFromSuperview]
#17 0x30c4ca24 in -[UIView dealloc]
#18 0x32d86640 in -[NSObject release]
#19 0x30bfab34 in -[UIView(Hierarchy) removeFromSuperview]
#20 0x30c4ca24 in -[UIView dealloc]
#21 0x32cc579c in -[MKMapView dealloc]
#22 0x32d86640 in -[NSObject release]
#23 0x30bfab34 in -[UIView(Hierarchy) removeFromSuperview]
#24 0x30c4ca24 in -[UIView dealloc]
#25 0x32d86640 in -[NSObject release]
#26 0x30bfab34 in -[UIView(Hierarchy) removeFromSuperview]
#27 0x30c4ca24 in -[UIView dealloc]
#28 0x32d86640 in -[NSObject release]
#29 0x30bfab34 in -[UIView(Hierarchy) removeFromSuperview]
#30 0x30c4ca24 in -[UIView dealloc]
#31 0x32d86640 in -[NSObject release]
#32 0x30bfab34 in -[UIView(Hierarchy) removeFromSuperview]
#33 0x30c4ca24 in -[UIView dealloc]
#34 0x32d86640 in -[NSObject release]
#35 0x33f70996 in NSPopAutoreleasePool
#36 0x33e99104 in run_animation_callbacks
#37 0x33e98e6c in CA::timer_callback
#38 0x32da44c2 in CFRunLoopRunSpecific
#39 0x32da3c1e in CFRunLoopRunInMode
#40 0x31bb9374 in GSEventRunModal
#41 0x30bf3c30 in -[UIApplication _run]
#42 0x30bf2230 in UIApplicationMain
#43 0x00002450 in main at main.m:14
CustomAnnotation.h 후
스택 추적 : 난 당신이 내 코드를 표시하기 전에
, 여기에 내가 끝낼 스택 추적입니다
@interface CustomAnnotation : NSObject <MKAnnotation,
MKReverseGeocoderDelegate>
{
@private
MKReverseGeocoder* _reverseGeocoder;
MKPlacemark* _placemark;
@public
CLLocationCoordinate2D _coordinate;
NSString* _title;
}
//Note: Property for CLLocationCoordinate2D coordinate is declared in MKAnnotation
@property (nonatomic, retain) NSString* title;
@property (nonatomic, retain) MKPlacemark* placemark;
-(id) initWithCoordinate:(CLLocationCoordinate2D)coordinate
title:(NSString*)title;
-(void) setCoordinate:(CLLocationCoordinate2D)coordinate;
@end
맞춤 설명.
@implementation CustomAnnotation
@synthesize coordinate = _coordinate; // property declared in MKAnnotation.h
@synthesize title = _title;
@synthesize placemark = _placemark;
-(id) initWithCoordinate:(CLLocationCoordinate2D)coordinate
title:(NSString*)title
{
if(self = [super init])
{
_title = [title retain];
[self setCoordinate:coordinate];
_placemark = nil;
}
return self;
}
#pragma mark -
#pragma mark MKAnnotationView Notification
- (void)notifyCalloutInfo:(MKPlacemark *)newPlacemark {
[self willChangeValueForKey:@"subtitle"]; // Workaround for SDK 3.0, otherwise callout info won't update.
self.placemark = newPlacemark;
[self didChangeValueForKey:@"subtitle"]; // Workaround for SDK 3.0, otherwise callout info won't update.
[[NSNotificationCenter defaultCenter] postNotification:[NSNotification notificationWithName:@"MKAnnotationCalloutInfoDidChangeNotification" object:self]];
}
#pragma mark
#pragma mark -
#pragma mark Reverse Geocoder Reset Procedure
- (void)resetReverseGeocoder
{
if(_reverseGeocoder != nil)
{
//If the reverse geocoder already exists, check to make sure it isn't querying. Cancel query if it is.
if([_reverseGeocoder isQuerying])
{
[_reverseGeocoder cancel];
}
//Before releasing the reverse geocoder, set it's delegate to nil just to be safe
[_reverseGeocoder setDelegate:nil];
//Release the current reverse geocoder
[_reverseGeocoder release];
_reverseGeocoder = nil;
}
}
#pragma mark
#pragma mark -
#pragma mark Set Coordinate Procedure
- (void)setCoordinate:(CLLocationCoordinate2D)coordinate {
_coordinate = coordinate;
//We only want to be reverse geocoding one location at a time, so make sure we've reset the reverse geocoder before starting
[self resetReverseGeocoder];
//Create a new reverse geocoder to find the location for the given coordinate, and start the query
_reverseGeocoder = [[MKReverseGeocoder alloc] initWithCoordinate:_coordinate];
[_reverseGeocoder setDelegate:self];
[_reverseGeocoder start];
}
#pragma mark
#pragma mark -
#pragma mark MKAnnotation Delegate Procedure Implementations
- (NSString *)subtitle
{
NSString* subtitle = nil;
if (_placemark)
{
subtitle = [NSString stringWithString:[[_placemark.addressDictionary objectForKey:@"FormattedAddressLines"] objectAtIndex:1]];
}
else
{
subtitle = [NSString stringWithFormat:@"%lf, %lf", _coordinate.latitude, _coordinate.longitude];
}
return subtitle;
}
#pragma mark -
#pragma mark MKReverseGeocoderDelegate methods
- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFindPlacemark:(MKPlacemark *)newPlacemark {
if(geocoder != _reverseGeocoder)
{
NSLog(@"WARNING:::: MORE THAN ONE REVERSE GEOCODER!!!");
NSLog(@"_reverseGeocoder = %@",[_reverseGeocoder description]);
NSLog(@"geocoder = %@",[geocoder description]);
}
[self notifyCalloutInfo:newPlacemark];
[self resetReverseGeocoder];
}
- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error {
if(geocoder != _reverseGeocoder)
{
NSLog(@"WARNING:::: MORE THAN ONE REVERSE GEOCODER!!!");
NSLog(@"_reverseGeocoder = %@",[_reverseGeocoder description]);
NSLog(@"geocoder = %@",[geocoder description]);
}
[self notifyCalloutInfo:nil];
[self resetReverseGeocoder];
}
#pragma mark -
#pragma mark Memory Management
- (void)dealloc {
[self resetReverseGeocoder];
[_title release], _title = nil;
[_placemark release], _placemark = nil;
[super dealloc];
}
@end
둘째, 나는 사용자 정의 주석보기
CustomAnnotationView.h
@interface CustomAnnotationView : MKAnnotationView {
}
@end
CustomAnnotationView.m
@implementation CustomAnnotationView
- (id)initWithAnnotation:(id <MKAnnotation>)annotation reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithAnnotation:annotation reuseIdentifier:reuseIdentifier];
UIGraphicsBeginImageContext(CGSizeMake(30,30));
//Note: [UIImage drawInRect:radius:contentMode:] is a Three20 Procedure
[[UIImage imageNamed:@"annoationIcon.png"] drawInRect:CGRectMake(0,0,30,30) radius:6.0f contentMode:UIViewContentModeScaleAspectFill];
UIImage *iconImage = UIGraphicsGetImageFromCurrentImageContext();
//pop the context to get back to the default
UIGraphicsEndImageContext();
UIImageView *leftIconView = [[UIImageView alloc] initWithImage:iconImage];
self.leftCalloutAccessoryView = leftIconView;
[leftIconView release];
[iconImage release];
return self;
}
@end
을 만들고, 마지막으로 한 , 관련 내 새 개체보기 컨트롤러의 NT 부품 :
Thread 0 Crashed:
0 libobjc.A.dylib 0x00003ec0 objc_msgSend + 24
1 UIKit 0x0005c8b0 -[UIImageView stopAnimating] + 76
2 UIKit 0x0005c808 -[UIImageView dealloc] + 20
3 CoreFoundation 0x0003963a -[NSObject release] + 28
4 MapKit 0x0006b8a4 -[MKAnnotationView dealloc] + 80
5 CoreFoundation 0x0003963a -[NSObject release] + 28
6 UIKit 0x0000ab2c -[UIView(Hierarchy) removeFromSuperview] + 592
7 UIKit 0x0005ca1c -[UIView dealloc] + 232
8 MapKit 0x0003a814 -[MKOverlayView dealloc] + 804
9 CoreFoundation 0x0003963a -[NSObject release] + 28
10 UIKit 0x0000ab2c -[UIView(Hierarchy) removeFromSuperview] + 592
11 UIKit 0x0005ca1c -[UIView dealloc] + 232
12 UIKit 0x000cb870 -[UIScrollView dealloc] + 284
13 MapKit 0x000699bc -[MKScrollView dealloc] + 88
14 CoreFoundation 0x0003963a -[NSObject release] + 28
15 UIKit 0x0000ab2c -[UIView(Hierarchy) removeFromSuperview] + 592
16 UIKit 0x000cb4a0 -[UIScrollView removeFromSuperview] + 68
17 UIKit 0x0005ca1c -[UIView dealloc] + 232
18 CoreFoundation 0x0003963a -[NSObject release] + 28
19 UIKit 0x0000ab2c -[UIView(Hierarchy) removeFromSuperview] + 592
20 UIKit 0x0005ca1c -[UIView dealloc] + 232
21 MapKit 0x00017794 -[MKMapView dealloc] + 1384
22 CoreFoundation 0x0003963a -[NSObject release] + 28
23 UIKit 0x0000ab2c -[UIView(Hierarchy) removeFromSuperview] + 592
24 UIKit 0x0005ca1c -[UIView dealloc] + 232
25 CoreFoundation 0x0003963a -[NSObject release] + 28
26 UIKit 0x0000ab2c -[UIView(Hierarchy) removeFromSuperview] + 592
27 UIKit 0x0005ca1c -[UIView dealloc] + 232
28 CoreFoundation 0x0003963a -[NSObject release] + 28
29 UIKit 0x0000ab2c -[UIView(Hierarchy) removeFromSuperview] + 592
30 UIKit 0x0005ca1c -[UIView dealloc] + 232
31 CoreFoundation 0x0003963a -[NSObject release] + 28
32 UIKit 0x0000ab2c -[UIView(Hierarchy) removeFromSuperview] + 592
33 UIKit 0x0005ca1c -[UIView dealloc] + 232
34 CoreFoundation 0x0003963a -[NSObject release] + 28
35 Foundation 0x00047990 NSPopAutoreleasePool + 238
36 QuartzCore 0x0001e0fc run_animation_callbacks(double, void*) + 600
37 QuartzCore 0x0001de64 CA::timer_callback(__CFRunLoopTimer*, void*) + 156
38 CoreFoundation 0x000574bc CFRunLoopRunSpecific + 2192
39 CoreFoundation 0x00056c18 CFRunLoopRunInMode + 44
40 GraphicsServices 0x0000436c GSEventRunModal + 188
41 UIKit 0x00003c28 -[UIApplication _run] + 552
42 UIKit 0x00002228 UIApplicationMain + 960
43 TestApp 0x0000244a main (main.m:14)
44 TestApp 0x000021d4 start + 44
빠른 참고 사항 ...어노테이션 뷰를 이동하고 위치를 업데이트하는 코드를 제거했다고 말했을 때 코드를 테스트하기 전에 테스트를 수행 했으므로 나중에 테스트를 수행하지 않으므로 아무 것도 남기지 않고 그냥 취소 할 수 있습니다 보기 w/out 충돌 및 다음 다른 세부 사항에 대해 걱정할 것이다. – TheAggie