Re: [iPhone] Breaking content of NSMutable array into two arrays.
Re: [iPhone] Breaking content of NSMutable array into two arrays.
- Subject: Re: [iPhone] Breaking content of NSMutable array into two arrays.
- From: Wyatt Webb <email@hidden>
- Date: Wed, 1 Sep 2010 08:35:24 -0700
On Sep 1, 2010, at 5:26 AM, Tharindu Madushanka wrote:
> Hi,
>
> I have a NSMutableArray that holds objects and they are sorted according to
> an integer value, either 1 (One constant), 2 (another constant).
>
> User {
> NSString *name;
> NSInteger state;
> }
>
> Now i want to split the content into two arrays. I saw this method..
>
> - (NSArray *)filteredArrayUsingPredicate:(NSPredicate *)*predicate
>
> Could I use this method for my purpose, could someone give me an example
> usage of predicate or some other mean to do my task
I'm assuming that User is a real Objective-C class and not just a C struct.
If so, then you'd do something like this:
NSPredicate* predicate = [NSPredicate predicateWithFormat:@"state = 1"];
NSArray* firstArray = [allObjects filteredArrayUsingPredicate:predicate];
predicate = [NSPredicate predicateWithFormat:@"state = 2"];
NSArray* secondArray = [allObjects filteredArrayUsingPredicate:predicate];
Wyatt
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