CODEWITHSUNDEEP
iosobjective-csortingnssortdescriptor
PillowPig
PillowPig

Reputation: 27

iOS how to sort NSMutableArray of custom object contained NSarray of NSNumber?

I have an array (NSMutableArray) which contains StudentScoreObj and the object have missions (NSArray).

Like:

missions = @[@34, @43, @54, @23, @54];

need to sort StudentScoreObj of array using first object of missions array.

My code:

@interface StudentScoreObj : NSObject

@property (nonatomic, copy) NSString *teamType;
@property (nonatomic, copy) NSString *teamNumber;
@property (nonatomic, copy) NSString *studentName;
@property (nonatomic, copy) NSString *isParticipated ;
@property (nonatomic, copy) NSString *totalScore;
@property (nonatomic, copy) NSString *avgScore;
@property (nonatomic, copy) NSArray *missions;

@end

Upvotes: 1

Views: 148

Answers (1)

Nirav D
Nirav D

Reputation: 72460

You can use sorted​Array​Using​Comparator for that.

NSArray *sortArray = [array sortedArrayUsingComparator:^NSComparisonResult(StudentScoreObj *obj1,StudentScoreObj  *obj2) {

    NSNumber *obj1Score = @0, *obj2Score = @0;        
    if([[obj1 missions] firstObject]) {
        obj1Score = @([[[obj1 missions] firstObject] intValue]);
    }

    if([[obj2 missions] firstObject]) {
        obj2Score = @([[[obj2 missions] firstObject] intValue]);
    }
    return [obj1Score compare:obj2Score];
}];

Upvotes: 1

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