NSMutableArray search string - objective-c

Question

I've a person object which has NSString properties firstname, lastname, birthday, and NSMutableDictionary of different phone numbers of that person.
I've added different person objects in an NSMutableArray named personArray.

Answer 1

Try using this method on NSArray. Something like this:
return [personArray[[personArray indexOfObjectPassingTest:^ (id obj, NSUInteger index, BOOL stop) {
return [lastName isEqualToString:[obj lastName]];
}]] phoneNumber];
You get the idea.

Answer 2

You should be able to do it like this:
-(NSArray *) phoneNumberFor:(NSString *)lastName{
NSInteger indx = [self.personArray indexOfObjectPassingTest:^BOOL(Person *aPerson, NSUInteger idx, BOOL *stop) {
return [aPerson.lastname isEqualToString:lastName];
}];
if (indx != NSNotFound) {
return [self.personArray[indx] phoneNumbers].allValues;
}else{
return nil;
}
}
In this example, I'm assuming an array property called personArray, a class name of "Person" for your person objects, and a mutable dictionary called phoneNumbers. I'm also assuming that the dictionary contains several keys and values, where all of the values are phone numbers.

Answer 3

You can get object from array of the given lastname like as follow:-
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"lastname == '%#'", lastname];
NSArray *foundPersonArray = [personArray filteredArrayUsingPredicate:predicate];
NSLog("found person object = %#",foundPersonArray);
But if you want to search multiple object of same lastname from array then you can do following:-
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"lastname LIKE[c] %#", lastname];
NSArray *foundPersonArray = [personArray filteredArrayUsingPredicate:predicate];
NSLog("found person object = %#",foundPersonArray);