How to limit load of Array depending on switch position - ios

Question

I load my annotations from plist and loop categories
NSMutableArray *annotations = [[NSMutableArray alloc]init];
NSString *path = [[NSBundle mainBundle] pathForResource:#"data" ofType:#"plist"];
NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:path];
for(path in dict){
NSString *theCategory;
theCategory = [NSString stringWithFormat:#"%#", path];
NSLog(#"%#", path);
NSArray *ann = [dict objectForKey:theCategory];
for(int i = 0; i < [ann count]; i++) {
NSString *coordinates = [[ann objectAtIndex:i] objectForKey:#"Coordinates"];
double realLatitude = [[[coordinates componentsSeparatedByString:#","] objectAtIndex:1] doubleValue];
double realLongitude = [[[coordinates componentsSeparatedByString:#","] objectAtIndex:0] doubleValue];
MyAnnotation *myAnnotation = [[MyAnnotation alloc] init];
CLLocationCoordinate2D theCoordinate;
theCoordinate.latitude = realLatitude;
theCoordinate.longitude = realLongitude;
myAnnotation.coordinate=CLLocationCoordinate2DMake(realLatitude,realLongitude);
myAnnotation.title = [[ann objectAtIndex:i] objectForKey:#"Name"];
myAnnotation.subtitle = [[ann objectAtIndex:i] objectForKey:#"Address"];
myAnnotation.icon = [[ann objectAtIndex:0] objectForKey:#"Icon"];
[mapView addAnnotation:myAnnotation];
[annotations addObject:myAnnotation];
}
}
Then I have an switch in my settings
- (IBAction)saveSwitch:(id)sender
{
NSUserDefaults *defs1 = [NSUserDefaults standardUserDefaults];
[defs1 setBool: blackSwitch.on forKey: #"blackKey"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
I need to limit display of annotations from specific category by this switch. How it can be done, if I loop categories?

Answer 1

Inside your first loop, do this:
for(NSString *category in dict){
if ([category isEqualToString:#"Whatever"]) {
//continue?
NSArray *ann = [dict objectForKey:category];
BOOL blackKeyStatus = [[NSUserDefaults standardUserDefaults]boolForKey:#"blackKey"];
if (blackKeyStatus) {
//switch ON
//act appropriatelyForOnValue
//begin Loop 2 here?
} else {
//switch OFF
//act appropriately
}
} else {
//do something else?
}
If you're needing to test for a specific condition, do whatever is necessary to identify if that condition is met.