UISearchDisplayController 简单用法

{

    NSArray *data;

    NSArray *filterData;

    UISearchDisplayController *searchDisplayController;

}




#import "MainViewController.h"


@interface MainViewController ()


@end


@implementation MainViewController


- (id)initWithStyle:(UITableViewStyle)style

{

    self = [super initWithStyle:style];

    if (self) {

        data = [NSArray arrayWithObjects:@"Allan",@"Abbbb",@"Acccc",@"Bccccc",@"Cddddffk",@"Cddkllll",@"Ekkflfl",@"Ekljljfg" ,@"Leslie",@"Mm",@"Meinv",@"Meihi",@"Catilin",@"Arron", nil];

    }

    return self;

}



- (void)viewDidLoad

{

    [super viewDidLoad];

    UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 44)];

    searchBar.placeholder = @"搜索";

    

    // 添加 searchbar headerview

    self.tableView.tableHeaderView = searchBar;

    

    // searchbar 初始化 SearchDisplayController

    // 并把 searchDisplayController 和当前 controller 关联起来

    searchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self];

    

    // searchResultsDataSource 就是 UITableViewDataSource

    searchDisplayController.searchResultsDataSource = self;

    // searchResultsDelegate 就是 UITableViewDelegate

    searchDisplayController.searchResultsDelegate = self;

    

    

    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];

    [self.view addSubview:button];

    button.frame = CGRectMake(100, 100, 150, 18);

    button.backgroundColor = [UIColor redColor];

}


- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

}


#pragma mark - Table view data source


- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView

{

    return 1;

}


/*

 * 如果原 TableView SearchDisplayController 中的 TableView delete 指向同一个对象

 * 需要在回调中区分出当前是哪个 TableView

 */

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

    if (tableView == self.tableView) {

        return data.count;

    }else{

        // 谓词搜索

        NSPredicate *predicate = [NSPredicate predicateWithFormat:@"self contains [cd] %@",searchDisplayController.searchBar.text];

        filterData =  [[NSArray alloc] initWithArray:[data filteredArrayUsingPredicate:predicate]];

        return filterData.count;

    }

}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

    static NSString *cellId = @"mycell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellId];

    

    if (cell == nil) {

        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId];

    }

    

    if (tableView == self.tableView) {

        cell.textLabel.text = data[indexPath.row];

    }else{

        cell.textLabel.text = filterData[indexPath.row];

    }

    

    return cell;

}


-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

    NSString *text;

    

    if (tableView == self.tableView) {

        text = data[indexPath.row];

    }else{

        text = filterData[indexPath.row];

    }

    if( [data containsObject:text]){

        NSLog(@"发音");

    }

    

//    [self.view.superview removeFromSuperview];

    NSLog(@"you click %lu   %@",indexPath.row,text);

    

}


@end


猜你喜欢

转载自blog.csdn.net/chungeshihuatian/article/details/46400627
今日推荐