ios - 用户触摸注释时出现无法识别的选择器崩溃

Question

我有一个用于显示 map 和自定义注释的应用程序。当用户触摸注释时，我的应用程序崩溃了。它只发生在 iOS 7 中。它在 iOS 6 和 iOS 5 上运行良好。

以下是控制台中显示的崩溃报告:

ERROR: Trying to select an annotation which has not been added
-[__NSSetM coordinate]: unrecognized selector sent to instance 0x18c9d580
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSSetM coordinate]: unrecognized selector sent to instance 0x18c9d580'
*** First throw call stack:
(
    0   CoreFoundation                      0x020415e4 __exceptionPreprocess + 180
    1   libobjc.A.dylib                     0x016918b6 objc_exception_throw + 44
    2   CoreFoundation                      0x020de903 -[NSObject(NSObject) doesNotRecognizeSelector:] + 275
    3   CoreFoundation                      0x0203190b ___forwarding___ + 1019
    4   CoreFoundation                      0x0206e46e __forwarding_prep_1___ + 14
    5   MapKit                              0x000de10c _Z21_insertionNodeForItemP11objc_objectP14MKQuadTrieNode + 50
    6   MapKit                              0x000de428 _Z9_containsP11objc_objectP14MKQuadTrieNode + 27
    7   MapKit                              0x000de8ed -[MKQuadTrie contains:] + 39
    8   MapKit                              0x000d4918 -[MKAnnotationManager selectAnnotation:animated:avoid:] + 116
    9   MapKit                              0x00090789 -[MKMapView handleTap:] + 541
    10  UIKit                               0x0056ae8c _UIGestureRecognizerSendActions + 230
    11  UIKit                               0x00569b00 -[UIGestureRecognizer _updateGestureWithEvent:buttonEvent:] + 383
    12  UIKit                               0x0056b56d -[UIGestureRecognizer _delayedUpdateGesture] + 60
    13  UIKit                               0x0056eacd ___UIGestureRecognizerUpdate_block_invoke + 57
    14  UIKit                               0x0056ea4e _UIGestureRecognizerRemoveObjectsFromArrayAndApplyBlocks + 317
    15  UIKit                               0x00565148 _UIGestureRecognizerUpdate + 199
    16  CoreFoundation                      0x020094ce __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
    17  CoreFoundation                      0x0200941f __CFRunLoopDoObservers + 399
    18  CoreFoundation                      0x01fe7344 __CFRunLoopRun + 1076
    19  CoreFoundation                      0x01fe6ac3 CFRunLoopRunSpecific + 467
    20  CoreFoundation                      0x01fe68db CFRunLoopRunInMode + 123
    21  GraphicsServices                    0x01f6c9e2 GSEventRunModal + 192
    22  GraphicsServices                    0x01f6c809 GSEventRun + 104
    23  UIKit                               0x001f2d3b UIApplicationMain + 1225
    24  CustomMKAnnotationView              0x0000285a main + 170
    25  CustomMKAnnotationView              0x000027a5 start + 53
)
libc++abi.dylib: terminating with uncaught exception of type NSException

我按照以下方式创建了代码:

-(void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
    if ([view.annotation isKindOfClass:[BasicMapAnnotation class]])
        {
        if (_calloutAnnotation.coordinate.latitude == view.annotation.coordinate.latitude&&
            _calloutAnnotation.coordinate.longitude == view.annotation.coordinate.longitude)
        {
            return;
        }
        if (_calloutAnnotation)
        {
            [mapView removeAnnotation:_calloutAnnotation];
            _calloutAnnotation = nil;
        }
        _calloutAnnotation = [[[CalloutMapAnnotation alloc] 
                               initWithLatitude:view.annotation.coordinate.latitude
                              andLongitude:view.annotation.coordinate.longitude]autorelease];
        [mapView addAnnotation:_calloutAnnotation];

        [mapView setCenterCoordinate:_calloutAnnotation.coordinate animated:YES];
    }else
    {
        if([delegate respondsToSelector:@selector(customMKMapViewDidSelectedWithInfo:)])
        {
            [delegate customMKMapViewDidSelectedWithInfo:@"Annotation clicked"];
        }
    }
}

-(void)mapView:(MKMapView *)mapView didDeselectAnnotationView:(MKAnnotationView *)view 
    {
    if (_calloutAnnotation&& ![view isKindOfClass:[CallOutAnnotationVifew class]])
    {
        if (_calloutAnnotation.coordinate.latitude == view.annotation.coordinate.latitude&&
            _calloutAnnotation.coordinate.longitude == view.annotation.coordinate.longitude)
        {
            [mapView removeAnnotation:_calloutAnnotation];
            _calloutAnnotation = nil;
        }
    }
}

-(MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
    if ([annotation isKindOfClass:[CalloutMapAnnotation class]])
    {

        CallOutAnnotationVifew *annotationView = (CallOutAnnotationVifew *)[mapView     dequeueReusableAnnotationViewWithIdentifier:@"CalloutView"];
        if (!annotationView)
        {
            annotationView = [[[CallOutAnnotationVifew alloc] initWithAnnotation:annotation reuseIdentifier:@"CalloutView"] autorelease];
            JingDianMapCell  *cell = [[[NSBundle mainBundle] loadNibNamed:@"JingDianMapCell" owner:self options:nil] objectAtIndex:0];
            cell.titleLable.text = @"Testing";
            [annotationView.contentView addSubview:cell];

        }
        return annotationView;
    }else if ([annotation isKindOfClass:[BasicMapAnnotation class]])
    {

         MKAnnotationView *annotationView =[self.mapView dequeueReusableAnnotationViewWithIdentifier:@"CustomAnnotation"];
        if (!annotationView)
        {
            annotationView = [[[MKAnnotationView alloc] initWithAnnotation:annotation 
                                                           reuseIdentifier:@"CustomAnnotation"] autorelease];
            annotationView.canShowCallout = NO;
            annotationView.image = [UIImage imageNamed:@"pin.png"];
        }

        return annotationView;
    }
    return nil;
}

在 didSelectAnnotationView 和 didDeselectAnnotationView 中，我添加了新的注释 View 并删除了旧的注释 View 。注释 View 是自定义类。而_calloutAnnotation 是CalloutMapAnnotation 的一个对象，CalloutMapAnnotation 是用于添加注解的NSObject 类。

Answer 1

_calloutAnnotation不包含注释 View 。我认为你有这样的代码 @prorerty (weak, nonatomic) MKAnnotation * calloutAnnotation;改变 weak至 strong应该有帮助。