我有如下二维数组:
NSMutableArray *world=[[NSMutableArray alloc]init];
NSNumber *number;
NSMutableArray *inner;
int scr=2;
number=[[NSNumber alloc]initWithInt:scr];
inner=[[NSMutableArray alloc]initWithObjects:@"ABC",number,nil];
[world addObject:inner];
scr=6;
number=[[NSNumber alloc]initWithInt:scr];
inner=[[NSMutableArray alloc]initWithObjects:@"XYZ",number,nil];
[world addObject:inner];
scr=1;
number=[[NSNumber alloc]initWithInt:scr];
inner=[[NSMutableArray alloc]initWithObjects:@"PQR",number,nil];
[world addObject:inner];
scr=5;
number=[[NSNumber alloc]initWithInt:scr];
inner=[[NSMutableArray alloc]initWithObjects:@"DEF",number,nil];
[world addObject:inner];
scr=3;
number=[[NSNumber alloc]initWithInt:scr];
inner=[[NSMutableArray alloc]initWithObjects:@"LMN",number,nil];
[world addObject:inner];
现在,我想对世界数组进行排序以获得以下结果,
XYZ 6
DEF 5
LMN 3
ABC 2
PQR 1
谁能帮帮我, 提前致谢...
最佳答案
您可以使用 sortedArrayUsingComparator:
通过自定义排序代码块对数组进行排序。试试这个:
NSArray *sortedWorld = [world sortedArrayUsingComparator:^(id a, id b) {
NSNumber *numA = [a objectAtIndex:1];
NSNumber *numB = [b objectAtIndex:1];
return [numB compare:numA];
}];
关于iphone - 排序 2D NSMutableArray,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10477575/