tableView点击更多及搜索栏

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