NSDictionary 和NSArray 排序（sort）

排序:

 NSMutableDictionary *dic=[[NSMutableDictionary alloc]init];
    [dic setValue:@"第3个" forKey:@"00:10"];
    [dic setValue:@"第2个" forKey:@"00:09"];
    [dic setValue:@"第5个" forKey:@"04:11"];
    [dic setValue:@"第1个" forKey:@"00:01"];
    [dic setValue:@"第4个" forKey:@"01:18"];
    NSArray *arr=[dic allKeys];
    for (int i=0; i<arr.count; i++) {
        NSLog(@"--1%@",arr[i]);

    }
    NSArray *sortedArr=[arr sortedArrayUsingComparator:^NSComparisonResult(id   obj1, id   obj2) {
        return [obj1 compare:obj2];
    }];
    for (int i=0; i<sortedArr.count; i++) {
        NSLog(@"2--%@",sortedArr[i]);
    }