开发笔记之NSTable 排序

（1）第一步设置一下button

    IBOutlet NSButton * nameOrderBT;

    IBOutlet NSButton * sizeOrderBT;

（2）切换设置切换相遇函数

-(IBAction) nameOrderAction:(id)sender

{

    [sizeOrderBT setTitle:@"Width"];

    if ([nameOrderBT.title isEqualToString:@"Name⬆️"])

    {

        [nameOrderBT setTitle:@"Name⬇️"];

        _itemOrder=RFICONMODEL_ORDER_FILENAME_DESC;

    }

    else{

        [nameOrderBT setTitle:@"Name⬆️"];

        _itemOrder=RFICONMODEL_ORDER_FILENAME_ASC;

    }

    [self updateTable];

    return;

}

-(IBAction) sizeOrderAction:(id)sender

{

    [nameOrderBT setTitle:@"Name"];

    if ([sizeOrderBT.title isEqualToString:@"Width⬆️"])

    {

        [sizeOrderBT setTitle:@"Width⬇️"];

        _itemOrder=RFICONMODEL_ORDER_IMAGEWIDTH_DESC;

    }

    else{

        [sizeOrderBT setTitle:@"Width⬆️"];

        _itemOrder=RFICONMODEL_ORDER_IMAGEWIDTH_ASC;

    }

    [self updateTable];

    return;

}

（3）设置item获取顺序

{

    if (_itemOrder==nil) {

        _itemOrder=@"";

    }

    return _itemOrder;

}

-(NSMutableArray*) getItemsArray

{

    if (itemsArray==nil) {

        itemsArray=[NSMutableArray array];

        //NSArray * modelArray=[RFIConModel getItemByGroupName:[self getGroupNameBySafe]];

        NSArray * modelArray=[RFIConModel getItemByGroupName:[self getGroupNameBySafe] order:[self getItemOrderBySafe]];

        for (RFIConModel * model in modelArray) {

            ItemPreCellVC * oneVC=[[ItemPreCellVC alloc] init];

            oneVC.itemModel=model;

            [itemsArray addObject:oneVC];

        }

    }

    return itemsArray;

}

其中[RFIConModel getItemByGroupName:[self getGroupNameBySafe] order:[self getItemOrderBySafe]]是order关键，这样只需设施一下itemOrder，就可自动更新内容了。