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POLoading multiple sets of annotations onto map kit map
 

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    <p>im trying to show on a map two json files simulteniously. But there is the problem it gives me weird errors which I can't figure it out. So originaly there was</p> <pre><code> - (void)viewDidLoad { [super viewDidLoad]; NSMutableArray * annotations = [[NSMutableArray alloc] init]; self.mapView.visibleMapRect = MKMapRectMake(135888858.533591, 92250098.902419, 190858.927912, 145995.678292); NSLog(@"Loading data…"); dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), ^{ NSData * JSONData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:self.seedFileName ofType:@"json"]]; for (NSDictionary * annotationDictionary in [NSJSONSerialization JSONObjectWithData:JSONData options:kNilOptions error:NULL]) { ADClusterableAnnotation * annotation = [[ADClusterableAnnotation alloc] initWithDictionary:annotationDictionary]; [annotations addObject:annotation]; [annotation release]; } dispatch_async(dispatch_get_main_queue(), ^{ NSLog(@"Building KD-Tree…"); [self.mapView setAnnotations:annotations]; }); }); [annotations release]; } </code></pre> <p>so i saw that i have two ViewControllers which holds the the seedfile this one is</p> <pre><code>#import "CDStreetlightsMapViewController.h" @implementation CDStreetlightsMapViewController - (NSString *)pictoName { return @"CDStreetlight.png"; } - (NSString *)clusterPictoName { return @"CDStreetlightCluster.png"; } - (NSString *)seedFileName { return @"CDStreetlights"; } - (NSString *)seedFileName1 { return @"CDToilets"; } @end </code></pre> <p>the other one is</p> <pre><code>#import "CDToiletsMapViewController.h" @implementation CDToiletsMapViewController - (NSString *)seedFileName { return @"CDToilets"; } - (NSString *)pictoName { return @"CDToilet.png"; } - (NSString *)clusterPictoName { return @"CDToiletCluster.png"; } @end </code></pre> <p>The json files are named CDToilets and CDStreetlights... but i have a tab bar which holds Toilets and streetlights. But lets say i would like to display on the toilets viewController the streetlights and the toilets? thats my problem right know.. I tried this </p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; NSMutableArray * annotations = [[NSMutableArray alloc] init]; self.mapView.visibleMapRect = MKMapRectMake(135888858.533591, 92250098.902419, 190858.927912, 145995.678292); NSLog(@"Loading data…"); dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), ^{ NSData * JSONData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:self.seedFileName ofType:@"json"]]; for (NSDictionary * annotationDictionary in [NSJSONSerialization JSONObjectWithData:JSONData options:kNilOptions error:NULL]) { ADClusterableAnnotation * annotation = [[ADClusterableAnnotation alloc] initWithDictionary:annotationDictionary]; [annotations addObject:annotation]; [annotation release]; } NSData * JSONData1 = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:self.seedFileName1 ofType:@"json"]]; for (NSDictionary * annotationDictionary in [NSJSONSerialization JSONObjectWithData:JSONData1 options:kNilOptions error:NULL]) { ADClusterableAnnotation * annotation = [[ADClusterableAnnotation alloc] initWithDictionary:annotationDictionary]; [annotations addObject:annotation]; [annotation release]; } dispatch_async(dispatch_get_main_queue(), ^{ NSLog(@"Building KD-Tree…"); [self.mapView setAnnotations:annotations]; }); }); [annotations release]; } </code></pre> <p>i renamed in the <code>CDStreetlightsMapViewController</code> the <code>seedfile</code> as <code>seedfile1</code> so i can use it two times in <code>viewDidLoad</code> it didn't show errors but it didn't run well on simulator and I get an exception:</p> <pre><code>ClusterDemo[11014:c07]Loading data… ClusterDemo[11014:1303]***Assertion failure in -[CDToiletsMapViewController seedFileName1], ADClusterMapView-master-7/ClusterDemo/Classes/CDMapViewController.‌​m:86 2013-11-25 23:59:37.524 ClusterDemo[11014:1303]***Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'This abstract method must be overridden!' *** First throw call stack: (0x18b2012 0x1277e7e 0x18b1e78 0xd0df35 0x3fad 0x36cb 0x2deb53f 0x2dfd014 0x2dee2e8 0x2dee450 0x99843e72 0x9982bdaa) libc++abi.dylib: terminate called throwing an exception (lldb) </code></pre> <p>you can download the full app here... <a href="https://github.com/applidium/ADClusterMapView" rel="nofollow">https://github.com/applidium/ADClusterMapView</a> </p>
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    1. COAnd what didn't work when you loaded both sets of annotations into the single array? What is the problem?
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    2. COthe app showed for 1 second and crashed.
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    3. COGive details of the exception. Don't expect people to guess.
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