EPMapExtension is an extension library built on the top of MKMapKit framework.
- Download EPMapExtension and try out the included iPhone example app
The library architecture is built on the the top of MKMapKit Framework.
MapViewDecorator is an attempt to deal with a considerable amount of customized MKAnnotationViews, spanning over the map without incurring in typical problems relevant to the trivial switch-case, if-else if control structures. In other words, it is a way to treat a good number of annotations and views in a more manageable and maintainable way.
In the following way is possible to register the annotationView associated to the annotation
EPMapViewDecorator *decorator = [[EPMapViewDecorator alloc] init];
[decorator registerAnnotationViewForClass:[AnnotationClass class] annotationView:@"MKPinAnnotationView"];
EPMapViewDecorator *decorator = [[EPMapViewDecorator alloc] init];
[_mapDecorator registerAnnotationViewForClass:[AnnotationClass class] annotationView:@"MKPinAnnotationView"
configBlock:^(MKAnnotationView *av, id<MKAnnotation> annotation){
[av setCanShowCallout:YES];
}];
[_mapDecorator registerAnnotationViewForClass:[AnnotationClass class]
translationBlock:^NSString * (id<MKAnnotation> annotation) {
if (![[(AnnotationClass *)annotation name] isEqualToString:@"I'm old"])
return @"YAAnnotationView";
else
return @"YAAAnnotationView";
}];
[_mapDecorator setConfigBlockForClass:[AnnotationClass class]
block:^(MKAnnotationView *av, id<MKAnnotation> annotation){
if([av class] == [YAAnnotationView class]) {
[av setCanShowCallout:YES];
} else {
[av setCanShowCallout:NO];
}
}];
[_mapDecorator setTranslationBlockForAllClasses:^NSString * (id<MKAnnotation> annotation) {
if (![annotation respondsToSelector:@selector(title)])
return @"YAAnnotationView";
else
return @"YAJesusAnnotationView";
}];
[_mapDecorator setConfigBlockForAllClasses: ^(MKAnnotationView *annotationView, id<MKAnnotation> annotation) {
if([annotationView class] == [YAAnnotationView class]) {
[annotationView setCanShowCallout:YES];
} else {
[annotationView setCanShowCallout:NO];
}
}];
This customized MapView adds some useful features on top of the MKMapView class.
In fact, it enables
-
to get centered regions relative to a set to annotations conforming to a protocol or a set of protocols, belonging to a certain class or set of classes
-
to get the number of visible annotation conforming to a protocol or a set of protocols or belonging to a certain class or set of classes, within the current visible Map Region.
This class is a helper class to update the user position only within a certain range (it's the minThresholdToUpdatePosition property). It also checks if a valid position has been given.
This is an annotation array data structure built on top of the NSArray class. It adds some useful features to get, remove, add annotations responding to a particular protocol or class.