3

我设置了mapView.delegate等。
一切都很好，但是当我离开时，在我恢复我的应用程序几分钟后，它退出了。

控制台给了我这个，但我无法修复它：

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 
'Invalid Region <center:-180.00000000, -180.00000000 span:+0.09000000, +0.09000000>'

userLocation 更新后的setRegion发送方法didUpdateUserLocation

 - (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
    [mapView removeAnnotations: [mapView annotations]];
    for (TOJSearchItem *searchItem in _searchItems) {
        TOJPlaceRequest *request = [TOJPlaceRequest new];
        [request execute:SERVER_URL coordinate:userLocation.coordinate searchItem:searchItem delegate:self];
    }
    MKCoordinateRegion region = {{userLocation.coordinate.latitude , userLocation.coordinate.longitude}, {0.09f , 0.09f}};
    [mapView setRegion:region animated: YES];
}

提出要求

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
    if (_lastLocation != nil) {
        CLLocationDistance meters = [newLocation distanceFromLocation:_lastLocation];
        if (meters < DISTANCE_MINI) {
//            CALCUL tout les points par rapport a current location
//            NSLog(@"%f, %f", newLocation.coordinate.latitude, newLocation.coordinate.longitude);
        } else {
            for (TOJSearchItem *searchItem in _searchItems) {
                TOJPlaceRequest *request = [TOJPlaceRequest new];
                [request execute:SERVER_URL coordinate:newLocation.coordinate searchItem:searchItem delegate:self];
            }
            MKCoordinateRegion region = {{newLocation.coordinate.latitude , newLocation.coordinate.longitude}, {0.09f , 0.09f}};
            [_mapView setRegion: region animated: YES];
            NSLog(@"reconnection");
        }
    }
    _lastLocation = [[CLLocation alloc] initWithLatitude:newLocation.coordinate.latitude longitude:newLocation.coordinate.longitude];
}

单击注释后重置区域

- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
    if ([view class] == TOJClusterPushPinView.class) {
        TOJClusterPushPinView *clusterPushPinView = (TOJClusterPushPinView *)view;
        CLLocationCoordinate2D topLeftCoordinate;
        topLeftCoordinate.latitude = -90;
        topLeftCoordinate.longitude = 180;
        CLLocationCoordinate2D bottomRightCoordinate;
        bottomRightCoordinate.latitude = 90;
        bottomRightCoordinate.longitude = -180;
        for (TOJPushPin *pushPin in clusterPushPinView.clusterPushPin.pushPins) {
            topLeftCoordinate.longitude = fmin(topLeftCoordinate.longitude, pushPin.coordinate.longitude);
            topLeftCoordinate.latitude = fmax(topLeftCoordinate.latitude, pushPin.coordinate.latitude);
            bottomRightCoordinate.longitude = fmax(bottomRightCoordinate.longitude, pushPin.coordinate.longitude);
            bottomRightCoordinate.latitude = fmin(bottomRightCoordinate.latitude, pushPin.coordinate.latitude);
        }
        MKCoordinateRegion region;
        region.center.latitude = topLeftCoordinate.latitude - (topLeftCoordinate.latitude - bottomRightCoordinate.latitude) * 0.5;
        region.center.longitude = topLeftCoordinate.longitude + (bottomRightCoordinate.longitude - topLeftCoordinate.longitude) * 0.5;
        region.span.latitudeDelta = fabs(topLeftCoordinate.latitude - bottomRightCoordinate.latitude) * 2.0; // Add a little extra space on the sides
        region.span.longitudeDelta = fabs(bottomRightCoordinate.longitude - topLeftCoordinate.longitude) * 2.0; // Add a little extra space on the sides
        region = [mapView regionThatFits:region];
        [mapView setRegion:region animated:YES];
    }
}
4

3 回答 3

0

如果您的 didUpdateToLocation 方法，您应该检查给定的位置变量是否有效。

 if (userLocation.location.horizontalAccuracy >= 0) {

众所周知，虽然我没有看到其中的逻辑，但它在恢复后获得的第一个位置可能是无效的。任何精度 < 0 的位置都应该被丢弃。

参考： http: //developer.apple.com/library/ios/#documentation/CoreLocation/Reference/CLLocation_Class/CLLocation/CLLocation.html#//apple_ref/occ/instp/CLLocation/horizo​​ntalAccuracy

于 2012-10-15T19:56:07.093 回答
0

改成

 if (userLocation.location.horizontalAccuracy >= 1) {

 .......

 }

有用

于 2013-07-05T10:17:08.077 回答
0

你应该检查 didUpdateUserLocation 如果

userLocation.location != nil

在我的应用程序中，当从 applicationDidBecomeActive 事件返回时，第一个坐标始终无效。

于 2013-09-06T22:46:32.563 回答