是否可以将CLLocation对象用作字典中的键？当我尝试这个时,[dictionary objectForKey：clLocationObj]总是返回nil,即使已经插入了具有完全相同纬度和经度的CLLocation键.我能做错什么？
for (Location *location in someArray) {
CLLocation *locationKey = [[CLLocation alloc] initWithLatitude:[location.latitude doubleValue] longitude:[location.longtitude doubleValue]];
LocationAnnotation *annotationAtLocation = [self.uniqueLocations objectForKey:locationKey];
if (annotationAtLocation == nil)
NSLog(@"this is always nil");
}
我从调试中知道,在someArray中有多个Location位置具有相同的纬度和经度.
