能够实现添加，修改及删除的通讯录

       往通讯录里添加联系人的时候，有一个功能时添加照片，代码中没有写添加链接，只能通过添加已经拖到xcord里照片的名字来把照片显示出来。

#import "MainViewController.h"#import "Student.h"#import "FirstViewController.h"#import "SecondViewController.h"@interface MainViewController ()<PassValueDelegate,InsertViewDelegate>@end@implementation MainViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Custom initialization                self.arr = [NSMutableArray array];        self.title = @"通讯录";    }    return self;}- (void)viewDidLoad{    [super viewDidLoad];    // 姓名    NSArray *arrName = [NSArray arrayWithObjects:@"小红", @"小华", @"小凯", @"小白", @"小明", @"小博", @"小杨", @"小谢", @"小李", @"小管", @"小美", @"小红", @"小杰",@"小侯", @"小磊", @"莎莎", @"小薛", @"小郑", @"小志", @"小达", @"王贺", @"郭维", @"小童",@"小东", @"小国", nil];    // 电话号码    NSArray *arrNum = [NSArray arrayWithObjects:@"11111",@"22222",@"33333",@"44444",@"55555",@"66666",@"77777",@"88888",@"999999",@"00000", @"12222", @"13333", @"14444", @"15555", @"16666", @"17777", @"18888",@"19999", @"21111",@"123456", @"432143",@"666543", @"987897", @"555667",@"444333", nil];    // 照片    for (int i = 0; i < 25; i++) {        Student *stu = [[Student alloc]init];        stu.image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpg", i]];        stu.name = [arrName objectAtIndex:i];        stu.number = [arrNum objectAtIndex:i];                [self.arr addObject:stu];        [stu release];    }        self.table = [[UITableView alloc]initWithFrame:self.view.bounds style:UITableViewStylePlain];    self.table.delegate = self;    self.table.dataSource = self;    self.table.backgroundColor = [UIColor magentaColor];    self.table.rowHeight = 40;        [self.view addSubview:self.table];        // 是否处在编辑状态    [_table setEditing:NO animated:YES];     // 在bar昨天设置编辑按钮    self.navigationItem.leftBarButtonItem = self.editButtonItem;    self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"insert.png"] style:UIBarButtonItemStylePlain target:self action:@selector(buttonAction:)]autorelease];        [_table release];        // Do any additional setup after loading the view.}- (void)dealloc{    [_arr release];    [_table release];    [super dealloc];}- (void)buttonAction:(UINavigationBar *)insert{    SecondViewController *second = [[SecondViewController alloc]init];    second.delegate = self;    [self.navigationController pushViewController:second animated:YES];    }/// 添加方法- (void)insertStu:(Student *)stu;{    [self.arr insertObject:stu atIndex:0];    [[self.view.subviews firstObject]reloadData];}// viewController的编辑按钮的点击方法- (void)setEditing:(BOOL)editing animated:(BOOL)animated{    [super setEditing:editing animated:animated];    [_table setEditing:editing animated:animated];    }- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    return self.arr.count;}- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath{    // 获取到原位置的这条数据    NSString *name = [[self.arr objectAtIndex:sourceIndexPath.row] retain];        // 从原来的位置 删除掉这条数据    [self.arr removeObjectAtIndex:sourceIndexPath.row];    // 添加到目的位置    [self.arr insertObject:name atIndex:destinationIndexPath.row];    [name release];}// 移动// 设定某一行能否被移动- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath{    return YES;}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    static NSString *str = @"str";    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:str];    if (nil == cell) {        cell = [[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:str]autorelease];    }            Student *stu = [self.arr objectAtIndex:indexPath.row];    cell.textLabel.text = stu.name;    cell.detailTextLabel.text = stu.number;    cell.imageView.image = stu.image;        return cell;}// tableView的delegate方法// 点击某一个cell- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{        FirstViewController *first = [[FirstViewController alloc]init];        [self.navigationController pushViewController:first animated:YES];        Student *stu = [self.arr objectAtIndex:indexPath.row];    first.str = stu.name;    first.str1 = stu.number;    first.img1 = stu.image;    first.index = indexPath.row;    first.delegate = self;        [first release];    }// 修改方法- (void)changeName:(NSString *)name Number:(NSString *)number index:(NSInteger)index{    Student *stu = [self.arr objectAtIndex:index];    stu.name = name;    stu.number = number;    [[self.view.subviews firstObject]reloadData];    }- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}

#import <UIKit/UIKit.h>#import "Student.h"@interface MainViewController : UIViewController<UITableViewDataSource,UITableViewDelegate>@property (nonatomic, retain)NSMutableArray *arr;@property (nonatomic, retain)UITableView *table;/// 修改方法- (void)changeName:(NSString *)name Number:(NSString *)number index:(NSInteger)index;/// 添加方法- (void)insertStu:(Student *)stu;@end

#import "FirstViewController.h"#import "MainViewController.h"@interface FirstViewController ()<UITextFieldDelegate>@end@implementation FirstViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Custom initialization    }    return self;}- (void)viewDidLoad{    [super viewDidLoad];        self.view.backgroundColor = [UIColor magentaColor];        UIImageView *image = [[UIImageView alloc]initWithFrame:CGRectMake(30, 100, 100, 110)];    image.image = self.img1;    image.backgroundColor = [UIColor whiteColor];    [self.view addSubview:image];    [image release];        UITextField *textName = [[UITextField alloc]initWithFrame:CGRectMake(200, 100, 100, 30)];    textName.tag = 1000;    textName.borderStyle = UITextBorderStyleRoundedRect;    textName.text = self.str;    textName.backgroundColor = [UIColor whiteColor];    [self.view addSubview:textName];    [textName release];        UILabel *laber = [[UILabel alloc]initWithFrame:CGRectMake(150, 100, 40, 30)];    laber.text = @"姓名";    laber.backgroundColor = [UIColor clearColor];    [self.view addSubview:laber];        UITextField *textNum = [[UITextField alloc]initWithFrame:CGRectMake(200, 180, 100, 30)];    textNum.tag = 2000;    textNum.borderStyle = UITextBorderStyleRoundedRect;    textNum.delegate = self;    textNum.text = self.str1;    textNum.backgroundColor = [UIColor whiteColor];    [self.view addSubview:textNum];    [textNum release];        UILabel *laber1 = [[UILabel alloc]initWithFrame:CGRectMake(150, 180, 40, 30)];    laber1.text = @"电话";    laber1.backgroundColor = [UIColor clearColor];    [self.view addSubview:laber1];    [laber release];        UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];    button.frame = CGRectMake(130, 300, 60, 30);    [button setTitle:@"保存" forState:UIControlStateNormal];    button.backgroundColor = [UIColor whiteColor];    [self.view addSubview:button];        [button addTarget:self action:@selector(buttonClick:) forControlEvents:UIControlEventTouchUpInside];        // Do any additional setup after loading the view.}// 键盘收回- (BOOL)textFieldShouldReturn:(UITextField *)textField{    [textField resignFirstResponder];    return YES;}// 点击修改后保存实现方法- (void)buttonClick:(UIButton *)button{    UITextField *name = (UITextField *)[self.view viewWithTag:1000];        UITextField *number = (UITextField *)[self.view viewWithTag:2000];    [self.delegate changeName:name.text Number:number.text index:self.index];        }

<pre name="code" class="objc">#import <UIKit/UIKit.h>#import "Student.h"// 指定协议@protocol PassValueDelegate <NSObject>// 制定方法- (void)changeName:(NSString *)name Number:(NSString *)number index:(NSInteger)index;@end@interface FirstViewController : UIViewController@property (nonatomic, retain)Student *stu;@property (nonatomic, assign)NSInteger index;@property (nonatomic, copy)NSString *str;@property (nonatomic, copy)NSString *str1;@property (nonatomic, copy)UIImage *img1;@property (nonatomic, assign)id<PassValueDelegate>delegate;@end

#import "SecondViewController.h"#import "Student.h"@interface SecondViewController ()<UITextFieldDelegate>@end@implementation SecondViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Custom initialization        self.stu = [[Student alloc] init];        [_stu release];    }    return self;}- (void)dealloc{    [_stu release];    [super dealloc];}- (void)viewDidLoad{    [super viewDidLoad];    self.view.backgroundColor = [UIColor magentaColor];        UITextField *textImg = [[UITextField alloc]initWithFrame:CGRectMake(30, 100, 100, 110)];    textImg.tag = 3000;    textImg.delegate = self;    textImg.borderStyle = UITextBorderStyleRoundedRect;    textImg.backgroundColor = [UIColor whiteColor];    [self.view addSubview:textImg];    [textImg release];        UITextField *textName = [[UITextField alloc]initWithFrame:CGRectMake(200, 100, 100, 30)];    textName.tag = 1000;    textName.delegate = self;    textName.borderStyle = UITextBorderStyleRoundedRect;    textName.backgroundColor = [UIColor whiteColor];    [self.view addSubview:textName];    [textName release];        UILabel *laber = [[UILabel alloc]initWithFrame:CGRectMake(150, 100, 40, 30)];    laber.text = @"姓名";    laber.backgroundColor = [UIColor clearColor];    [self.view addSubview:laber];        UITextField *textNum = [[UITextField alloc]initWithFrame:CGRectMake(200, 180, 100, 30)];    textNum.tag = 2000;    textNum.delegate = self;    textNum.borderStyle = UITextBorderStyleRoundedRect;    textNum.backgroundColor = [UIColor whiteColor];    [self.view addSubview:textNum];    [textNum release];        UILabel *laber1 = [[UILabel alloc]initWithFrame:CGRectMake(150, 180, 40, 30)];    laber1.text = @"电话";    laber1.backgroundColor = [UIColor clearColor];    [self.view addSubview:laber1];    [laber release];        UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];    button.frame = CGRectMake(130, 300, 60, 30);    [button setTitle:@"保存" forState:UIControlStateNormal];    button.backgroundColor = [UIColor whiteColor];    [self.view addSubview:button];        [button addTarget:self action:@selector(insertStu:) forControlEvents:UIControlEventTouchUpInside];        // Do any additional setup after loading the view.}- (void)insertStu:(Student *)stu;{    UITextField *name = (UITextField *)[self.view viewWithTag:1000];    UITextField *number = (UITextField *)[self.view viewWithTag:2000];    UITextField *img = (UITextField *)[self.view viewWithTag:3000];    self.stu.name = name.text;    self.stu.number = number.text;    self.stu.image = [UIImage imageNamed:[NSString stringWithFormat:@"%@.jpg",img.text]];        [self.delegate insertStu:self.stu];    [self.navigationController popToRootViewControllerAnimated:YES];}// 键盘收回- (BOOL)textFieldShouldReturn:(UITextField *)textField{    [textField resignFirstResponder];    return YES;}

#import <UIKit/UIKit.h>#import "Student.h"@protocol InsertViewDelegate <NSObject>- (void)insertStu:(Student *)stu;@end@interface SecondViewController : UIViewController@property (nonatomic, retain)Student *stu;@property (nonatomic, assign)id<InsertViewDelegate>delegate;@end

#import "Student.h"@implementation Student- (id)initwithName:(NSString *)name Number:(NSString *)number Image:(UIImage *)image{    self = [super init];    if ( self) {        _name = name;        _number = number;        _image = image;    }    return self;}- (void)dealloc{    [_name release];    [_number release];    [_image release];    [super dealloc];}@end

#import <Foundation/Foundation.h>@interface Student : NSObject@property (nonatomic, retain)NSString *name;@property (nonatomic, retain)NSString *number;@property (nonatomic, retain)UIImage *image;- (id)initwithName:(UIImage *)name Number:(NSString *)number Image:(NSString *)image;@end