UITableView与UISearchController搜索及上拉加载，下拉刷新

#import "ViewController.h"
#import "TuanGouModel.h"
#import "TuanGouTableViewCell.h"
#define kDeviceWidth [UIScreen mainScreen].bounds.size.width
#define kDeviceHeight [UIScreen mainScreen].bounds.size.height
@interface ViewController ()<UITableViewDelegate,UITableViewDataSource,UISearchResultsUpdating>
{
    UISearchController * _sscller;
}
@property(nonatomic,strong)NSMutableArray* secArrM;

@property(nonatomic,strong) NSMutableArray* tuanGouArrM;

@property(nonatomic,strong)UITableView* myTable;

@end

@implementation ViewController

- (void)viewDidLoad {
    
    [super viewDidLoad];
    [self createNa];
    self.myTable.backgroundColor = [UIColor lightGrayColor];
    [self createsecB];
    [self setupRefresh];
    
    self.title = @"美食家";
}

#pragma mark - 导航
-(void)createNa{
    
    UIBarButtonItem *rightItem = [[UIBarButtonItem alloc]initWithTitle:@"Edit" style:UIBarButtonItemStylePlain target:self action:@selector(tableEdit:)];
    self.navigationItem.rightBarButtonItem = rightItem;
    self.title = @"美食家";

}

// 点击导航右侧编辑按钮时，让表格可编辑
-(void)tableEdit:(UIBarButtonItem *) btnItem{
    
//    if (self.myTable.editing == NO ) {      // 没有处于编辑状态，导航按钮文字为“Edit”
//        // 点击“编辑”文字，让表格处于编辑状态，并把按钮的文字修改为“Done"
//        self.myTable.editing = YES;
// 
//    }else{
//        // 编辑状态下，点击”Done"按钮，取消表格的编辑状态，修改导航按钮文字为"Edit"
//        self.myTable.editing = NO;
//        btnItem.title = @"Edit" ;
//        self.navigationItem.rightBarButtonItems = @[btnItem];
//    }
    
}

-(void)createsecB{
    _sscller = [[UISearchController alloc]initWithSearchResultsController:nil];
    _sscller.searchResultsUpdater = self;
    self.myTable.tableHeaderView = _sscller.searchBar;
    
    
}
-(NSMutableArray *)secArrM{
    
    
    if (_secArrM == nil) {
       return _secArrM = [NSMutableArray array];
        
    }else{
         return _secArrM;
    }
    
    
   
}

- (void)didReceiveMemoryWarning {
    
    [super didReceiveMemoryWarning];
    
}
#pragma mark - 表格懒加载
-(UITableView *)myTable{
    if (_myTable == nil) {
        _myTable = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, kDeviceWidth, kDeviceHeight) style:UITableViewStylePlain];
        [self.view addSubview:_myTable];
        
        _myTable.delegate = self;
        _myTable.dataSource = self;
        _myTable .separatorStyle = UITableViewCellSeparatorStyleSingleLineEtched;
        
    }
    return _myTable;

}

#pragma mark - 团购数据懒加载
-(NSMutableArray *)tuanGouArrM{

    if (_tuanGouArrM == nil) {
        _tuanGouArrM = [NSMutableArray array];
        NSString* plistPath = [[NSBundle mainBundle]pathForResource:@"tgs.plist" ofType:nil];
        NSArray* tuanArr = [NSArray arrayWithContentsOfFile:plistPath];
        
        for (NSDictionary* dict in tuanArr) {
            TuanGouModel* model =[[TuanGouModel alloc]initWithDict:dict];
            [_tuanGouArrM addObject:model];
        }
    }
    return _tuanGouArrM;
}

#pragma mark - 数据源协议
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    if ( _sscller.active ) {        //搜索结果表格
        return  self.secArrM.count;
    }
    
    else{
        return self.tuanGouArrM.count;

   }
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
 
    //注册
    [tableView registerClass:[TuanGouTableViewCell class] forCellReuseIdentifier:@"tuanCell"];
    //重置
    TuanGouTableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:@"tuanCell"forIndexPath:indexPath];
    cell.backgroundColor = [UIColor yellowColor];
    // 选中风格
    cell.selectionStyle = UITableViewCellSelectionStyleNone;
    if( !_sscller.active ){
       cell.tuanGouModel = self.tuanGouArrM[indexPath.row];
    }else{          //搜索结果
       cell.tuanGouModel = self.secArrM[indexPath.row];
    }
    

    return cell;
}
#pragma mark - TableV协议

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{

    return 80;
}

-(void)updateSearchResultsForSearchController:(UISearchController *)searchController{
    
    [self.secArrM removeAllObjects];
        for (int j = 0; j < _tuanGouArrM.count; j++) {
            TuanGouModel* model =[[TuanGouModel alloc]init];
                 model = _tuanGouArrM[j];
            if ([model.title isEqualToString: _sscller.searchBar.text]) {
                [self.secArrM addObject: model];
            }
    }
    
    [self.myTable reloadData];
}


//允许Menu菜单
-(BOOL)tableView:(UITableView *)tableView shouldShowMenuForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return   YES;
}

//每个cell都可以点击出现Menu菜单
-(BOOL)tableView:(UITableView *)tableView canPerformAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender
{
    return   YES;

}
-(void)tableView:(UITableView *)tableView performAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender{

    NSLog(@"长按");
    
    if (action ==@selector(copy:)) {
        
       NSLog(@"copy");
        
    }
    if (action ==@selector(cut:)) {
        NSLog(@"cut");
        
    }
    
    if (action ==@selector(paste:)) {
        
       
        NSLog(@"paste");
    }

    if (action ==@selector(selectAll:)) {
        
        
        NSLog(@"selectAll");
    }


}
//上拉加载
-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath{
    if (indexPath.row == self.tuanGouArrM.count - 1) {
        NSLog(@"最后一行");
        
        TuanGouModel* model =[[TuanGouModel alloc]init];
        model = _tuanGouArrM[arc4random()%12];
        [_tuanGouArrM addObject:model];
        [self.myTable reloadData];

    }
}

//下拉刷新
-(void)setupRefresh
{
    //1.添加刷新控件
    UIRefreshControl *control=[[UIRefreshControl alloc]init];
    [control addTarget:self action:@selector(refreshStateChange:) forControlEvents:UIControlEventValueChanged];
    [self.myTable addSubview:control];
    
    //2.马上进入刷新状态，并不会触发UIControlEventValueChanged事件
    [control beginRefreshing];
    
    // 3.加载数据
    [self refreshStateChange:control];
}


/**
 *  UIRefreshControl进入刷新状态：加载最新的数据
 */
-(void)refreshStateChange:(UIRefreshControl *)control
{
    TuanGouModel* model =[[TuanGouModel alloc]init];
    model = _tuanGouArrM[arc4random()%12];
    [_tuanGouArrM insertObject:model atIndex:0];
    [self.myTable reloadData];

     NSLog(@"第一行");
     [control endRefreshing];
    
}

//指示是否允许高亮显示选中的行
- (BOOL)tableView:(UITableView *)tableView shouldHighlightRowAtIndexPath:(NSIndexPath *)indexPath{
    
    return YES;
}

//选中某行时执行
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    NSLog(@"selected: %ld, row:%ld", indexPath.section, indexPath.row);
}
//取消选中时执行，这个方法常在表格允许多选时调用执行
- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{
    NSLog(@"Deselected: %ld, row:%ld", indexPath.section, indexPath.row);
}

源文件这里有http://pan.baidu.com/s/1pLlDm6f

UITableView与UISearchController搜索及上拉加载，下拉刷新