Iphone 如何添加搜索栏？

我是xcode新手，也搜索过教程，但大多数教程只提供如何使用代码并进行搜索，我已经有了一个应用程序，希望在其中实现一个搜索栏。我想知道是否有人能给我指出正确的方向？这是

#import "RootViewController.h"
#import "AppDelegate.h"
#import "DetailViewController.h"

@implementation RootViewController

#pragma mark -
#pragma mark Synthesizers

@synthesize table;
@synthesize sitesList;
@synthesize imagesList;
@synthesize descArray;
@synthesize bannerImages;
@synthesize childController;

#pragma mark -
#pragma mark View methods

- (void)viewDidLoad {

    NSArray *sites = [[NSArray alloc] initWithObjects:
                      @"#1 or NUMBER ONE",
                      @"#2 or NUMBER TWO",
                      @"#3 or NUMBER THREE",
                      @"1 or ONE",
                      @"10-100,10-1,10-200,10-2,10-4 and 20",
                      @"1000H PAPER",
                      @"129 or HEAVY FROST",
                      @"18% GRAY or GREY CARD",
                      @"180 DEGREE RULE",
                      @"2 or TWO",
                      @"214 or FULL TOUGH SPUN",
                      @"215 or HALF TOUGH SPUN",
                      @"216 or FULL WHITE DIFFUSION",
                      @"220 or WHITE FROST",
                      @"229 or QUARTER TOUGH SPUN",
                      @"250 or HALF WHITE DIFFUSION",
                      @"251 or QUARTER WHITE DIFFUSION",
                      @"252 or EIGHTH WHITE DIFFUSION",
                      @"253 or FULL HAMPSHIRE",
                      @"254 or NEW HAMPSHIRE",
                      @"255 or HOLLYWOOD FROST",
                      @"256 or HALF HAMPSHIRE FROST",
                      @"257 or QUARTER HAMPSHIRE FROST",
                      @"258 or EIGHTH HAMPSHIRE FROST",
                      @"3200K or TUNGSTEN",
                      nil];
    self.sitesList = sites;

    [sites release];



    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"Descriptions" ofType:@"plist"];

    NSArray *desc = [[NSArray alloc] initWithContentsOfFile:filePath];

    self.descArray = desc;

    [desc release];



    UIImage *texas = [UIImage imageNamed:@"1andtexas.jpg"];
    UIImage *cali = [UIImage imageNamed:@"2andcalifornia.jpg"];
    UIImage *ny = [UIImage imageNamed:@"3andnewyork.jpg"];
    UIImage *tmark = [UIImage imageNamed:@"1Tmark.jpg"];
    UIImage *walkie = [UIImage imageNamed:@"Walkietalkie.jpg"];
    UIImage *onekh = [UIImage imageNamed:@"Tracingpaper.jpg"];
    UIImage *onetwonine = [UIImage imageNamed:@"diffusion.jpg"];
    UIImage *greycard = [UIImage imageNamed:@"Greycard.jpg"];
    UIImage *oneeighty = [UIImage imageNamed:@"Oneeighty.jpg"];
    UIImage *two = [UIImage imageNamed:@"Two.jpg"];
    UIImage *twofourteen = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofifteen = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twosixteen = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twotwenty = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twotwentynine = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofifty = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofiftyone = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofiftytwo = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofiftythree = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofiftyfour = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofiftyfive = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofiftysix = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofiftyseven = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *twofiftyeight = [UIImage imageNamed:@"Diffusion.jpg"];
    UIImage *thirtytwohk = [UIImage imageNamed:@"3200k.jpg"];

    NSArray *banners = [[NSArray alloc] initWithObjects:texas,
                        cali,
                        ny,
                        tmark,
                        walkie,
                        onekh,
                        onetwonine,
                        greycard,
                        oneeighty,
                        two,
                        twofourteen,
                        twofifteen,
                        twosixteen,
                        twotwenty,
                        twotwentynine,
                        twofifty,
                        twofiftyone,
                        twofiftytwo,
                        twofiftythree,
                        twofiftyfour,
                        twofiftyfive,
                        twofiftysix,
                        twofiftyseven,
                        twofiftyeight,
                        thirtytwohk,
                        nil];

    self.bannerImages = banners;

    [banners release];

    [app release];
    [creat release];
    [free release];
    [net release];
    [rock release];
    [tuts release];
    [work release];
     */

    [super viewDidLoad];    
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Support all the orientations except for PortraitUpsideDown
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

#pragma mark -
#pragma mark Table view datasource methods

-(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

// A-Z
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {

    NSMutableArray *toBeReturned = [[NSMutableArray alloc]init];
    for(char c = 'A'; c <= 'Z'; c++) [toBeReturned addObject:[NSString stringWithFormat:@"%c",c]];
    return toBeReturned;
}

-(NSInteger) tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section
{
    return [sitesList count];
}

-(UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"CellIdentifier";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }

    // Set the title for the cell
    cell.textLabel.text = [sitesList objectAtIndex:indexPath.row];

    cell.imageView.image = [imagesList objectAtIndex:indexPath.row];

    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

    // Return the cell
    return cell;
}


#pragma mark -
#pragma mark Table view delegate methods

-(CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 50; // Default height for the cell is 44 px;
}

-(NSString *) tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section
{
    return @"Flm Set Decipher";
}

-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];

    DetailViewController *detailVC = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil];

    detailVC.banner = [bannerImages objectAtIndex:indexPath.row];

    detailVC.description = [descArray objectAtIndex:indexPath.row];

    detailVC.title = [sitesList objectAtIndex:indexPath.row];

    self.childController = detailVC;

    [delegate.navigationController pushViewController:childController animated:YES];

    [detailVC release];

    [tableView deselectRowAtIndexPath:indexPath animated:YES];
}


#pragma mark -
#pragma mark Memory Management

- (void)didReceiveMemoryWarning {
    NSLog(@"Memory warning!");
    [super didReceiveMemoryWarning];
}

- (void)viewDidUnload {
    self.table = nil;
    self.sitesList = nil;
    self.imagesList = nil;
    self.descArray = nil;
    self.bannerImages = nil;
    self.childController = nil;
    [super viewDidUnload];
}

- (void)dealloc {
    [table release];
    [sitesList release];
    [imagesList release];
    [descArray release];
    [bannerImages release];
    [childController release];
    [super dealloc];
}

@end

#导入“RootViewController.h”
#导入“AppDelegate.h”
#导入“DetailViewController.h”
@RootViewController的实现
#布拉格标记-
#布拉格符号合成器
@综合表；
@综合站点列表；
@合成图像列表；
@合成天线阵；
@综合图像；
@综合控制器；
#布拉格标记-
#pragma标记视图方法
-（无效）viewDidLoad{
NSArray*站点=[[NSArray alloc]initWithObjects:
@“#1或1号”，
@“#2或2号”，
@“三号还是三号”，
@“1或1”，
@“10-100、10-1、10-200、10-2、10-4和20”，
@“1000小时纸张”，
@“129或重霜”，
@“18%灰色或灰色卡片”，
@“180度规则”，
@“两个或两个”，
@“214或全硬纺”，
@“215或半强力旋转”，
@“216或全白色扩散”，
@“220或白霜”，
@“229或四分之一强力旋转”，
@“250或半白色扩散”，
@“251或四分之一白色扩散”，
@“252或第八次白色扩散”，
@“253或全汉普郡”，
@“254或新罕布什尔州”，
@“255或好莱坞霜”，
@“256或半汉普郡霜”，
@“257或四分之一汉普郡霜冻”，
@“258或第八汉普郡霜冻”，
@“3200K或钨”，
零]；
self.sitesList=站点；
[网站发布]；
NSString*文件路径=[[NSBundle mainBundle]pathForResource:@“Descriptions”类型：@“plist”]；
NSArray*desc=[[NSArray alloc]initWithContentsOfFile:filePath]；
self.descArray=desc；
[描述释放]；
UIImage*texas=[UIImage ImageName:@“1和texas.jpg”]；
UIImage*cali=[UIImage ImageName:@“2andcalifornia.jpg”]；
UIImage*ny=[UIImage ImageName:@“3andnewyork.jpg”]；
UIImage*tmark=[UIImage ImageName:@“1Tmark.jpg”]；
UIImage*walkie=[UIImage ImageName:@“Walkietalkie.jpg]”；
UIImage*onekh=[UIImage imagename:@“Tracingpaper.jpg”]；
UIImage*onetwonine=[UIImage-imagename:@“diffusion.jpg]”；
UIImage*greycard=[UIImage ImageName:@“greycard.jpg”]；
UIImage*OneEarth=[UIImage ImageName:@“OneEarth.jpg”]；
UIImage*two=[UIImage ImageName:@“two.jpg”]；
UIImage*TwoTeven=[UIImage ImageName:@“Diffusion.jpg”]；
UIImage*two十五=[UIImage imagename:@“Diffusion.jpg”]；
UIImage*twoElexture=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*TwoTown=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*twotwentynine=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*Twowever=[UIImage ImageName:@“Diffusion.jpg”]；
UIImage*twofiftyone=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*twofiftytwo=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*twofiftythree=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*twofiftyfour=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*twofiftyfive=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*twofiftysix=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*twofiftyseven=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*twofiftyeight=[UIImage ImageName:@“Diffusion.jpg]”；
UIImage*thirtytwohk=[UIImage ImageName:@“3200k.jpg”]；
NSArray*横幅=[[NSArray alloc]initWithObjects:texas，
卡利，
纽约，
tmark，
随身听，
奥涅克，
奥特沃宁，
格雷卡德，
一百八十，
二
214，
二一五,，
二一六,，
二二十，
二十九，
二五,，
二五一,，
二五二,，
二五三,，
二五四，
二五五,，
二五六，
257，
258，
香港三十二号，
零]；
self.bannerImages=横幅；
[发布横幅]；
[应用程序发布]；
[创建发布]；
[自由释放]；
[净释放]；
[岩石释放]；
[图坦卡蒙释放]；
[工作释放]；
*/
[超级视图下载]；
}
-（布尔）应自动旋转指针面定向：（UIInterfaceOrientation）interfaceOrientation{
//支持所有方向，但上下方向除外
返回（interfaceOrientation！=UIInterfaceOrientation肖像向上向下）；
}
#布拉格标记-
#pragma标记表视图数据源方法
-（NSInteger）表格视图中的节数：（UITableView*）表格视图
{
返回1；
}
//A-Z
-（NSArray*）sectionIndexTitlesForTableView:（UITableView*）表格视图{
NSMUTABLEARRY*TOBERETURN=[[NSMUTABLEARRY alloc]init]；
对于（char c='A'；c这就是你要做的！遵循本教程


或者，这里有一个苹果的例子：

 
你应该考虑在你需要的时候加载资源（特别是你的横幅）。所有的预加载将占用很多RAM，特别是因为你多次加载相同的图像。