NSMutableArray search string

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.

score 1 · Accepted Answer · answered Sep 13 '13 at 21:47

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.

answered Sep 13 '13 at 21:47

Linuxios

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@user2769614: Try putting that code in your phoneNUmberForLastName method. It should work. – Linuxios Sep 13 '13 at 21:58
that throws error 'NSInvalidArgumentException', reason: '-[Person phoneNumber]: unrecognized selector sent to instance – user2769614 Sep 13 '13 at 22:09
phone numbers are in NSMutableDictionary inside person object – user2769614 Sep 13 '13 at 22:16
@user2769614: I can't help you with that unless I can see the Person class. – Linuxios Sep 13 '13 at 22:18
these are the variables in person object { NSString *firstName; NSString *lastName; NSString *birthday; NSMutableDictionary *phoneNumbers; } – user2769614 Sep 14 '13 at 00:25
@user2769614: You want to return phoneNumbers instead of phoneNumber, it sounds like. – Chuck Sep 14 '13 at 05:21

rdelmar · Answer 2 · 2013-09-14T01:49:12.583

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.

score 0 · Answer 3 · answered Sep 14 '13 at 04:42

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);

NSMutableArray search string

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