对NSMutableArray进行排序，然后对另一个NSMutableArray进行排序

本文介绍了对NSMutableArray进行排序，然后对另一个NSMutableArray进行排序的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

可以像这样对数组进行排序:

It's possible to sort an array like this:

MutableArray = [NSMutableArray arrayWithObjects:@"5",@"1",@"7,@"9",@"4", nil];

到(从大处开始，从小处开始):

to (start big ends small):

MutableArray = [NSMutableArray arrayWithObjects:@"9",@"7",@"5,@"4",@"1", nil];

是否还可以对两个数组进行排序:

Is it also possible to sort two arrays:

MutableArray = [NSMutableArray arrayWithObjects:@"5",@"1",@"7",@"9",@"4", nil]; MutableArray = [NSMutableArray arrayWithObjects:@"Andy",@"Mike",@"Bob",@"Amy",@"Alex", nil];

to(从大到小，但是 Andy 得到 5 点， Mike 得到 1 等)):

to (from big to small, but Andy got 5 point, Mike got 1 and so on):

MutableArray = [NSMutableArray arrayWithObjects:@"9",@"7",@"5",@"4",@"1", nil]; MutableArray = [NSMutableArray arrayWithObjects:@"Amy",@"Bob",@"Andy",@"Alex",@"Mike", nil];

是否可以将它们作为一对订购?在此先感谢:)

Is it possible to order them as a couple? Thanks in Advance :)

推荐答案

示例如何对 arrayOne 升序排序和对 arrayTwo 进行排序:

Example how to sort arrayOne ascending and sort arrayTwo along:

NSMutableArray *arrayOne = [NSMutableArray arrayWithObjects:@"5",@"1",@"7",@"9",@"4", nil]; NSMutableArray *arrayTwo = [NSMutableArray arrayWithObjects:@"Andy",@"Mike",@"Bob",@"Amy",@"Alex", nil]; NSDictionary *temp = [NSDictionary dictionaryWithObjects:arrayTwo forKeys:arrayOne]; NSArray *sortedArrayOne = [[temp allKeys] sortedArrayUsingSelector:@selector(compare:)]; NSArray *sortedArrayTwo = [temp objectsForKeys:sortedArrayOne notFoundMarker:[NSNull null]]; NSLog(@"%@",sortedArrayOne); NSLog(@"%@",sortedArrayTwo);

工作流程:从数组-> 创建字典，对字典-> 进行排序，从字典中创建数组.

Workflow: Create dictionary from the arrays -> sort dictionary -> create arrays from dictionary.

编辑

使用 NSSortDescriptor 和 ascending:NO 进行降序排序，快速示例:

Use NSSortDescriptor with ascending:NO to sort descending, quick example:

NSDictionary *temp = [NSDictionary dictionaryWithObjects:arrayTwo forKeys:arrayOne]; NSSortDescriptor *theDescriptor = [NSSortDescriptor sortDescriptorWithKey:nil ascending:NO selector:@selector(compare:)]; NSArray *sortedArrayOne = [[temp allKeys] sortedArrayUsingDescriptors:[NSArray arrayWithObject:theDescriptor]]; NSArray *sortedArrayTwo = [temp objectsForKeys:sortedArrayOne notFoundMarker:[NSNull null]];