Array annotation strangeness
Array annotation strangeness
- Subject: Array annotation strangeness
- From: Alex Zavatone <email@hidden>
- Date: Wed, 09 May 2012 14:09:31 -0400
Back on iterating through a mapKit annotation array, I'm bending my brain cell on this one.
All my annotations are instances of the MyLocation class
I added a method to expose the properties I want to save by returning a dict to the class.
After all annotations are added, and I want to walk the array and build an array of annotations, I do this:
- (IBAction)saveData:(id)sender
{
for (NSDictionary * myAnnotation in self.mapView.annotations)
{
MyLocation *tempLocation = [[MyLocation alloc] init ];
// test that the methods in the MyLocation objects actually work on an empty object
NSString *myString = [tempLocation name];
NSDictionary *myDict = [tempLocation returnCoordinatesInDict];
NSDictionary *myStuffDict = [tempLocation returnPropertiesInDict];
// Try it with one of the MyLocation objects in the annotation array
NSDictionary *myGoodsDict = [myAnnotation returnPropertiesInDict];
Xcode will not let the last line compile with a "Receiver type 'NSDictionary' for instance message does not declare a method with selector 'returnPropertiesInDict'
But if I comment out that line, set a breakpoint, it clearly shows that myAnnotation is a myLocation instance just like tempLocation.
Does anyone know what I am missing here?
Thanks,
- Alex
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