tableView点击更多及搜索栏

本是古典何须时尚 2021-11-22 11:20 238阅读 0赞

头文件声明了3个属性：

products是可变数组，存放数据源。

tableView，UITableView对象，用来现实数据，主要是用来区分是原数据的tableView还是搜索结果的tableView

result,可变数组，用来存放搜索的结果。

1个成员变量，可变数组，用来保存每个section的拉伸状态

头文件如下：

//
    //  laomaoProductsViewController.h
    //  20130801_tableViewExpand
    //
    //  Created by laomaoshiba on 13-8-2.
    //  Copyright (c) 2013年 ibokan. All rights reserved.
    //
    
    #import <UIKit/UIKit.h>
    
    @interface laomaoProductsViewController : UIViewController<UISearchDisplayDelegate,UITableViewDelegate,UITableViewDataSource>{
        NSMutableArray * _boolArray;
    }
    @property (retain,nonatomic) NSMutableArray * products;
    @property (retain,nonatomic) UITableView * tableView;
    @property (retain,nonatomic) NSMutableArray * result;
    
    @end

实现文件值得注意的是，

在设置section和设置row数量的时候，要判定是哪个tableView，这里有两个tableView,一个是原数据的tableView,一个是搜索结果的tableView

实现文件如下：

//
    //  laomaoProductsViewController.m
    //  20130801_tableViewExpand
    //
    //  Created by laomaoshiba on 13-8-2.
    //  Copyright (c) 2013年 ibokan. All rights reserved.
    //
    
    #import "laomaoProductsViewController.h"
    
    @interface laomaoProductsViewController ()
    
    @end
    
    @implementation laomaoProductsViewController
    
    - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
    {
        self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
        if (self) {
            
            self.products = [NSMutableArray arrayWithCapacity:0];
            _boolArray = [[NSMutableArray alloc]initWithCapacity:0];
            for (int j=1; j<3; j++) {
                NSMutableArray * element = [NSMutableArray arrayWithCapacity:0];
                for (int i=1; i<5; i++) {
                    [element addObject:[NSString stringWithFormat:@"%d,%d",j,i]];
                }
                [_products addObject:element];
                [_boolArray addObject:@"YES"];
                //[element removeAllObjects];
            }
            UISearchBar * sb = [[UISearchBar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
            [self.view addSubview:sb];
            
            UISearchDisplayController * sdc = [[UISearchDisplayController alloc]initWithSearchBar:sb contentsController:self];
            
            _tableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 50, 320, 430) style:UITableViewStylePlain];
            [self.view addSubview:_tableView];
            
            
            sdc.searchResultsDelegate = self;
            sdc.searchResultsDataSource = self;
            self.tableView.delegate = self;
            self.tableView.dataSource = self;
            //laomaoProductTableView * lptv = [[laomaoProductTableView alloc]initWithFrame:CGRectMake(0, 50, 320, 430) style:UITableViewStylePlain];
            //lptv.products = self.products;
            //lptv.boolArray = _boolArray;
            //[self.view addSubview:lptv];
        }
        return self;
    }
    
    - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
        if (tableView == self.tableView) {
            return self.products.count;
        }
        else
        {
            return 1;
        }
        
    }
    
    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
        if (tableView == self.tableView) {
            if ([_boolArray[section] isEqualToString:@"YES"]) {
                return [[_products objectAtIndex:section] count];
            }else{
                return 1;
            }
        }
        else
        {
            self.result = [NSMutableArray arrayWithCapacity:0];
            NSPredicate * pre = [NSPredicate predicateWithFormat:@"self contains [cd] %@",self.searchDisplayController.searchBar.text];
            for (int i=0; i<self.products.count; i++) {
                NSArray * result = [self.products[i] filteredArrayUsingPredicate:pre];
                for (NSString * tmpStr in result) {
                    [self.result addObject:tmpStr];
                }
            }
            return self.result.count;
            //self.result = [self.products[0] filteredArrayUsingPredicate:pre];
            //return self.result.count;
        }
        
    }
    
    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
        static NSString *CellIdentifier = @"Cell";
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
        //UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
        if (cell == nil) {
            cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
        }
        if (tableView == self.tableView) {
            //如果本section对应的数组成员数大于本section的行数，则说明是收缩状态
            if ([[self.products objectAtIndex:indexPath.section] count] > indexPath.row) {
                cell.textLabel.text = [[self.products objectAtIndex:indexPath.section] objectAtIndex:indexPath.row];
            }
            
            if ([_boolArray[indexPath.section] isEqualToString: @"NO"] && indexPath.row == 0 &&
                [[self.products objectAtIndex:indexPath.section] count] != 1) {
                cell.textLabel.text = nil;
            }
        }
        else
        {
            cell.textLabel.text = [self.result objectAtIndex:indexPath.row];
        }
        
        return cell;
    }
    
    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
        if (tableView == self.tableView) {
            [tableView deselectRowAtIndexPath:indexPath animated:NO];
            NSMutableArray * array = [NSMutableArray arrayWithCapacity:0];
            if (indexPath.row == 0 && [_boolArray[indexPath.section] isEqualToString:@"YES"]) {
                _boolArray[indexPath.section] = @"NO";
                
                for (int i=1; i<[[_products objectAtIndex:indexPath.section] count]; i++) {
                    NSIndexPath * index = [NSIndexPath indexPathForRow:i inSection:indexPath.section];
                    [array addObject:index];
                }
                [self.tableView deleteRowsAtIndexPaths:array withRowAnimation:UITableViewRowAnimationFade];
            }
            else if (indexPath.row != 0 && [_boolArray[indexPath.section] isEqualToString:@"YES"])
            {
                //这里写原数据的点击选择处理方法
            }
            else
            {
                _boolArray[indexPath.section] = @"YES";
                for (int i=1; i<[[_products objectAtIndex:indexPath.section] count]; i++) {
                    NSIndexPath * index = [NSIndexPath indexPathForRow:i inSection:indexPath.section];
                    [array addObject:index];
                }
                [self.tableView insertRowsAtIndexPaths:array withRowAnimation:UITableViewRowAnimationFade];
            }
        }
        else
        {
            //这里写搜索结果的点击处理方法
        }
            
    }
    
    
    - (void)viewDidLoad
    {
        [super viewDidLoad];
    	// Do any additional setup after loading the view.
    }
    
    - (void)didReceiveMemoryWarning
    {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    @end