iOS如何对包含NSNumber的NSarray的自定义对象的NSMutableArray进行排序?
问题描述:
我有一个数组(NSMutableArray)
其中包含StudentScoreObj和对象有missions
(NSArray)
。iOS如何对包含NSNumber的NSarray的自定义对象的NSMutableArray进行排序?
喜欢:
missions = @[@34, @43, @54, @23, @54];
需要使用任务阵列的第一对象进行排序阵列的StudentScoreObj。
我的代码:
@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
答
您可以使用sortedArrayUsingComparator
了点。
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];
}];
+0
它的作品。谢谢! – PillowPig
+0
@PillowPig欢迎伴侣:) –
你是怎么试过的? – Paulw11