uitableview 和UISearchBar 下拉提示结合使用

自定cell的代码

餐厅的实体和餐厅对应控件的frame

#import <Foundation/Foundation.h>

@class RestaurantFrame;

@interface Restaurant : NSObject

@property(nonatomic,copy)NSString *restaurantIcon;

@property(nonatomic,copy)NSString *restaurantTitle;

@property(nonatomic,copy)NSString *restaurantSubTitle;

@property(nonatomic,retain) RestaurantFrame *frame;//初始化内容的时候也要得到餐厅中控件的位置和内容

+(id)RestaturantImage:(NSString *)image Title:(NSString *)title  subTitle:(NSString *)subtitle;

@end

@implementation Restaurant

+(id)RestaturantImage:(NSString *)image Title:(NSString *)title subTitle:(NSString *)subtitle{

    Restaurant *res=[[Restaurant alloc] init];

    res.restaurantIcon=image;

    res.restaurantTitle=title;

    res.restaurantSubTitle=subtitle;

    res.frame=[[RestaurantFrame  alloc] initWithRestaurant:res];

    return  [res autorelease];

}

- (void)dealloc

{

    [_restaurantIcon release];

    [_restaurantTitle release];

    [_restaurantSubTitle release];

    [_frame release];

    [super dealloc];

}

@end

餐厅对应的cell的位置

#import "Restaurant.h"

#define KPadding 10

#define kImageWidth 100

#define KImageHeight 100

#define KTitleFont 15

#define kSubFont 12

@implementation RestaurantFrame

-(id)initWithRestaurant:(Restaurant *)res{

    if(self=[super init]){

        CGFloat width=[UIScreen mainScreen].bounds.size.width ;

        //通过内容算大小

        CGFloat imagex=KPadding;

        CGFloat imgagey=KPadding;

        CGFloat imgagew=kImageWidth;

        CGFloat imgageh=KImageHeight;

        _restaurantImageFram=CGRectMake(imagex,imgagey,imgagew,imgageh);

        CGFloat labelx=imagex+KPadding+imgagew;

        CGFloat labely=imgagey;

        CGFloat labelw=width-imgagew-imagex-KPadding*;

        CGFloat labelh=[UIFont systemFontOfSize:KTitleFont].lineHeight;

        _restaurantLabelFram=CGRectMake(labelx,labely,labelw,labelh);

        CGFloat sublabelx=labelx;

        CGFloat sublabely=imgagey+labelh+KPadding;

        CGFloat sublabelw=labelw;

        CGFloat sublabelh= [res.restaurantSubTitle sizeWithFont:[UIFont systemFontOfSize:kSubFont] constrainedToSize:CGSizeMake(sublabelw, ) lineBreakMode:NSLineBreakByCharWrapping].height;

        _resSubTitle=CGRectMake(sublabelx, sublabely, sublabelw, sublabelh);

        _cellHeight=imgageh;

    }

    return self;

}

@end

cell内部初始化的控件的位置

#import <UIKit/UIKit.h>

@class Restaurant;

@interface UIMyCell : UITableViewCell

//把餐厅信息设置到cell

@property(nonatomic,retain)Restaurant *rest;

@property(nonatomic,readonly)UIImageView *Resimageview;

//@property(nonatomic,readonly)UILabel *titleLabel;

@end

#import "UIMyCell.h"

#import "Restaurant.h"

#import "RestaurantFrame.h"

@interface UIMyCell()

{

    UILabel *_subTitle;

    UILabel *_TitleLabel;

}

@end

@implementation UIMyCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier

{

    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];

    if (self) {

        // Initialization code

        UIImageView *imageview=[[UIImageView alloc] init];

        [self.contentView addSubview:imageview];

        _Resimageview=imageview;

        [imageview release];

        UILabel *TitleLabel=[[UILabel alloc] init];

        TitleLabel.backgroundColor=[UIColor clearColor];

        TitleLabel.font=[UIFont systemFontOfSize:];

        [self.contentView addSubview:TitleLabel];

        _TitleLabel=TitleLabel;

        [TitleLabel release];

        UILabel *subTitle=[[UILabel alloc] init];

        subTitle.backgroundColor=[UIColor clearColor];

        subTitle.font=[UIFont systemFontOfSize:];

        subTitle.numberOfLines=;

        [self.contentView addSubview:subTitle];

        _subTitle=subTitle;

        [subTitle release];

    }

    return self;

}

-(void)setRest:(Restaurant *)rest{

    if(_rest!=rest){

        _rest=[rest retain];

        _Resimageview.image=[UIImage imageNamed:rest.restaurantIcon];//设置默认图片

        _TitleLabel.text=rest.restaurantTitle;

        _subTitle.text=rest.restaurantSubTitle;

    }

}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated

{

    [super setSelected:selected animated:animated];

    // Configure the view for the selected state

}

- (void)dealloc

{

    self.rest=nil;

    [super dealloc];

}

-(void)layoutSubviews{

    [super layoutSubviews];

    _Resimageview.frame=self.rest.frame.restaurantImageFram;

    _TitleLabel.frame=self.rest.frame.restaurantLabelFram;

    _subTitle.frame=self.rest.frame.resSubTitle;

}

@end

第一步在主视图控制器中加载一个UISearchBar 和UITableview

 -(void)Inittableview{

   //初始化主view中tableview 加载到self.view上

     CGFloat viewx=;

     CGFloat viewy=;

     CGFloat vieww=self.view.bounds.size.width;

     CGFloat viewH=self.view.bounds.size.height-;

     UITableView *view=[[UITableView alloc] initWithFrame:CGRectMake(viewx,viewy,vieww,viewH)];

     view.delegate=self;

     view.dataSource=self;

     _tableview=view;

     UIView *bgview=[[[UIView alloc] init] autorelease];

     bgview.backgroundColor=[UIColor colorWithRed:0.8 green:0.8 blue:0.8 alpha:0.8];

     view.backgroundView=bgview;

     [self.view addSubview:view];

     [view release];

     //初始化搜索框，在self.view上

       UISearchBar *searchbar=[[[UISearchBar alloc] initWithFrame:CGRectMake(, ,, kSearchSize)] autorelease];

     searchbar.placeholder=@"please enter keyword";

     searchbar.autocorrectionType=UITextAutocapitalizationTypeNone;

     searchbar.delegate=self;//设置代理

     //添加下拉框

     SearchViewController *searchVC=[[[SearchViewController alloc] initWithStyle:UITableViewStylePlain] autorelease];

     [searchVC .view setFrame:CGRectMake( , , , )];//0加载的时候高度为0隐藏

     [self.view addSubview:searchVC.view];

     _searchVC=searchVC;

     [self addChildViewController:searchVC];

     view.tableHeaderView=searchbar;

     [searchbar release];

 }

tableview 的代理方法 cell是自定义的

#pragma mark -tableview datesource

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{

    return ;

}

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

    returnself.mydata.count;

}

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

    static NSString *cellIndentify=@"mycell";

    UIMyCell *cell=[tableView dequeueReusableCellWithIdentifier:cellIndentify];

    if(cell==nil){

        cell=[[[UIMyCellalloc] initWithStyle:UITableViewCellStyleDefaultreuseIdentifier:cellIndentify] autorelease];

    }

    Restaurant *res=self.mydata[indexPath.row];

    cell.rest=res;

    return  cell;

}

#pragma mark -tableview delegate

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

    Restaurant *rest=self.mydata[indexPath.row];

    return rest.frame.cellHeight;

}

自定义下拉是一个uitableviewcontroller

//

//  SearchViewController.h

//  MyTestDemo001

//

//  Created by ganchaobo on 13-6-22.

//  Copyright (c) 2013年 ganchaobo. All rights reserved.

//

#import <UIKit/UIKit.h>

@interface SearchViewController : UITableViewController

@property(nonatomic,assign)NSMutableArray *mydate;

@end

#import <QuartzCore/QuartzCore.h>

@interface SearchViewController ()

@end

#import "Restaurant.h"

@implementation SearchViewController

- (void)viewDidLoad

{

    [super viewDidLoad];
//初始化的设置隐藏的tableiew的边框

    self.tableView.layer.borderWidth=;

    self.tableView.layer.borderColor=[UIColor blackColor].CGColor;

    // Do any additional setup after loading the view.

}

#pragma mark -delegate source

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{

    return ;

}

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

    return self.mydate==nil?:self.mydate.count;

}

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

    static NSString *cellIndentify=@"SearchViewController";

    UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:cellIndentify];

    if(cell==nil){

        cell=[[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIndentify] autorelease];

    }

    if(self.mydate!=nil){//第一加载为空。第二次有值

        Restaurant *res=self.mydate[indexPath.row];

        cell.textLabel.text=res.restaurantTitle;

    }

    return  cell;

}

-(void)setMydate:(NSMutableArray *)mydate{

    _mydate=mydate;//给外界设置。

    [self.tableView reloadData];

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end

在主窗口中设置下拉的uitableviewcontroller在view中隐藏和现实的位置

-(void)setSearchControllerHidden:(BOOL)hidden{

    NSInteger height=hidden?:;

    [UIView beginAnimations:nil context:nil];

    [UIView setAnimationDuration:0.1f];

    _searchVC.view.frame=CGRectMake(, , , height);

    [UIView commitAnimations];

}

searchbar 的代理方法用的时候两个数组来完成，先清楚一个，然后遍历另一个数组

#pragma  mark -searchbar

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{

    [self SearchData:searchText];

}

//search

-(void)SearchData:(NSString*)searchText{

    [self.mydata removeAllObjects];//清除原来的

    if(searchText.length!=){

        for (Restaurant *res in self.searchdata) {

            NSRange range=[res.restaurantTitle rangeOfString:searchText];

            if(range.length>){

                [self.mydata addObject:res];//填充匹配的数据

                //现实下拉

                [self setSearchControllerHidden:NO];

            }

        }

         _searchVC.mydate=_mydata;

    }

    else{

        for (Restaurant *res in self.searchdata) {

            [self.mydata addObject:res];//填充匹配的数据

        }

        [self setSearchControllerHidden:NO];

    }

    [_tableview reloadData];

}

-(void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{

  searchBar.text=@"";

}

-(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar{

    searchBar.showsCancelButton=YES;

    for (id cc in searchBar.subviews) {

        if([cc isKindOfClass:[UIButton class]]){

        UIButton *btn=(UIButton *)cc;

        [btn setTitle:@"取消" forState:UIControlStateNormal];

        }

    }

    return YES;

}

-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{

    searchBar.text=@"";

    [self SearchData:searchBar.text];

    [searchBar resignFirstResponder];

    //当点击取消按钮的时候隐藏

    [self setSearchControllerHidden:YES];

}

巴特西

uitableview 和UISearchBar 下拉提示结合使用

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