简易通讯录

#import "MainViewController.h"#import "SecondViewController.h"#import "ThirdViewController.h"@interface MainViewController ()<UITableViewDataSource,  UITableViewDelegate, SecondViewControllerDelegate, ThirdViewControllerDelegate>@property(nonatomic, retain)UITableView *tableView;@property(nonatomic, retain)NSMutableArray *arr;@property(nonatomic, retain)NSMutableDictionary *dic;@property(nonatomic, assign)NSInteger index;@property(nonatomic, assign)NSInteger num;@end@implementation MainViewController- (void)dealloc{    [_dic release];    [_arr release];    [_tableView release];    [super dealloc];}- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    self.navigationController.navigationBar.translucent = NO;    self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height - 64) style:UITableViewStylePlain];    [self.view addSubview:self.tableView];    [_tableView release];    self.tableView.delegate = self;    self.tableView.dataSource = self;//    设置导航栏标题    self.navigationItem.title = @"首页";    self.navigationItem.rightBarButtonItem =[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"1.png"] style:UIBarButtonItemStylePlain target:self action:@selector(click:)];        NSString *path = [[NSBundle mainBundle] pathForResource:@"StudentArr" ofType:@"plist"];    self.arr = [NSMutableArray array];     self.arr = [NSMutableArray arrayWithContentsOfFile:path];}- (void)sendMessage:(NSMutableDictionary *)dic {    [self.arr addObject:dic];}- (void)click:(UIButton *)button{    ThirdViewController *thirdVC = [[ThirdViewController alloc] init];    [self.navigationController pushViewController:thirdVC animated:YES];    [thirdVC release];    thirdVC.delegate = self;    }- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    return self.arr.count;}- (void)changeValue:(NSMutableDictionary *)dic index:(NSInteger)index{    [self.arr replaceObjectAtIndex:index withObject:dic];    [self.tableView reloadData];}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    static NSString *reuse = @"reuse";    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuse];    if (!cell) {        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:reuse] autorelease];    }    self.dic = self.arr[indexPath.row];    cell.textLabel.text = self.dic[@"name"];    cell.detailTextLabel.text = self.dic[@"phone"];    NSString *picName = [NSString stringWithFormat:@"%ld.jpg", indexPath.row + 1];    cell.imageView.image = [UIImage imageNamed:picName];    return cell;}- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{    SecondViewController *secondVC = [[SecondViewController alloc] init];    [self.navigationController pushViewController:secondVC animated:YES];    [secondVC release];    secondVC.dic = self.arr[indexPath.row];    secondVC.delegate = self;    secondVC.count = indexPath.row;}

<pre name="code" class="objc">#import <UIKit/UIKit.h>@protocol SecondViewControllerDelegate <NSObject>- (void)changeValue:(NSMutableDictionary *)dic index:(NSInteger)index;@end@interface SecondViewController : UIViewController@property(nonatomic, assign)id<SecondViewControllerDelegate>delegate;@property(nonatomic, retain)NSMutableDictionary *dic;@property(nonatomic, assign)NSInteger count;@end

#import "SecondViewController.h"#define WIDTH self.view.frame.size.width#define HEIGHT self.view.frame.size.height@interface SecondViewController ()<UIAlertViewDelegate>@property(nonatomic, retain)UITextField *name;@property(nonatomic, retain)UITextField *sex;@property(nonatomic, retain)UITextField *hobby;@property(nonatomic, retain)UITextField *phone;@property(nonatomic, retain)UIButton *done;@property(nonatomic, assign)BOOL isOn;@end@implementation SecondViewController- (void)dealloc{    [_done release];    [_phone release];    [_hobby release];    [_sex release];    [_name release];    [_dic release];    [super dealloc];}- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.        self.isOn = YES;    self.navigationItem.title = @"修改";    self.view.backgroundColor = [UIColor yellowColor];        self.name = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, WIDTH, 40)];    self.name.layer.borderWidth = 1;    self.name.layer.cornerRadius = 10;    [self.view addSubview:self.name];    [self.name setText:self.dic[@"name"]];    self.name.textAlignment = NSTextAlignmentCenter;    [_name release];        self.sex = [[UITextField alloc] initWithFrame:CGRectMake(0, 40, WIDTH, 40)];    self.sex.layer.borderWidth = 1;    self.sex.layer.cornerRadius = 10;    [self.view addSubview:self.sex];    [self.sex setText:self.dic[@"sex"]];    self.sex.textAlignment = NSTextAlignmentCenter;    [_sex release];        self.hobby = [[UITextField alloc] initWithFrame:CGRectMake(0, 80, WIDTH, 40)];    self.hobby.layer.borderWidth = 1;    self.hobby.layer.cornerRadius = 10;    [self.view addSubview:self.hobby];    [self.hobby setText:self.dic[@"hobby"]];    self.hobby.textAlignment = NSTextAlignmentCenter;    [_hobby release];        self.phone = [[UITextField alloc] initWithFrame:CGRectMake(0, 120, WIDTH, 40)];    self.phone.layer.borderWidth = 1;    self.phone.layer.cornerRadius = 10;    [self.view addSubview:self.phone];    [self.phone setText:self.dic[@"phone"]];    self.phone.textAlignment = NSTextAlignmentCenter;    [_phone release];        self.done = [UIButton buttonWithType:UIButtonTypeSystem];    self.done.layer.borderWidth = 1;    self.done.layer.cornerRadius = 10;    self.done.frame = CGRectMake(150, 360, 60, 40);    [self.done setTitle:@"完成" forState:UIControlStateNormal];    [self.view addSubview:self.done];    [self.done addTarget:self action:@selector(click) forControlEvents:UIControlEventTouchUpInside];}- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    [self.name resignFirstResponder];    [self.sex resignFirstResponder];    [self.phone resignFirstResponder];    [self.hobby resignFirstResponder];}- (void)click{       UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"确认后就更改,请慎重" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确认", nil];     alertView.delegate = self;    [alertView show];    [alertView release];}- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{    if (buttonIndex) {        [self.dic setValue:self.name.text forKey:@"name"];        [self.dic setValue:self.sex.text forKey:@"sex"];        [self.dic setValue:self.hobby.text forKey:@"hobby"];        [self.dic setValue:self.phone.text forKey:@"phone"];        [self.delegate changeValue:self.dic index:self.count];        [self.navigationController popViewControllerAnimated:YES];    }    if (buttonIndex == 0){        [self.name setText:self.dic[@"name"]];        NSLog(@"%@", self.dic[@"name"]);        [self.sex setText:self.dic[@"sex"]];        [self.hobby setText:self.dic[@"hobby"]];        [self.phone setText:self.dic[@"phone"]];    }}

#import <UIKit/UIKit.h>@protocol ThirdViewControllerDelegate <NSObject>- (void)sendMessage:(NSMutableDictionary *)dic;@end@interface ThirdViewController : UIViewController@property(nonatomic, assign)id<ThirdViewControllerDelegate>delegate;@end

#import "ThirdViewController.h"#define WIDTH self.view.frame.size.width@interface ThirdViewController ()@property(nonatomic, retain)UITextField *name;@property(nonatomic, retain)UITextField *sex;@property(nonatomic, retain)UITextField *hobby;@property(nonatomic, retain)UITextField *phone;@property(nonatomic, retain)UIButton *done;@property(nonatomic ,retain)NSMutableDictionary *dic;@end@implementation ThirdViewController- (void)dealloc{    [_dic release];    [_done release];    [_phone release];    [_hobby release];    [_sex release];    [_name release];    [super dealloc];}- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.        self.navigationItem.title = @"新建联系人";    self.view.backgroundColor = [UIColor yellowColor];        self.name = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, WIDTH, 40)];    self.name.layer.borderWidth = 1;    self.name.layer.cornerRadius = 10;    [self.view addSubview:self.name];    self.name.placeholder = @"请输入姓名";    self.name.textAlignment = NSTextAlignmentCenter;    [_name release];        self.sex = [[UITextField alloc] initWithFrame:CGRectMake(0, 40, WIDTH, 40)];    self.sex.layer.borderWidth = 1;    self.sex.layer.cornerRadius = 10;    [self.view addSubview:self.sex];    self.sex.textAlignment = NSTextAlignmentCenter;    self.sex.placeholder = @"请输入性别";    [_sex release];        self.hobby = [[UITextField alloc] initWithFrame:CGRectMake(0, 80, WIDTH, 40)];    self.hobby.layer.borderWidth = 1;    self.hobby.layer.cornerRadius = 10;    [self.view addSubview:self.hobby];    self.hobby.textAlignment = NSTextAlignmentCenter;    self.hobby.placeholder = @"请输入爱好";    [_hobby release];        self.phone = [[UITextField alloc] initWithFrame:CGRectMake(0, 120, WIDTH, 40)];    self.phone.layer.borderWidth = 1;    self.phone.layer.cornerRadius = 10;    [self.view addSubview:self.phone];    self.phone.textAlignment = NSTextAlignmentCenter;    self.phone.placeholder = @"请输入电话";    [_phone release];    self.done = [UIButton buttonWithType:UIButtonTypeSystem];    self.done.layer.borderWidth = 1;    self.done.layer.cornerRadius = 10;    self.done.frame = CGRectMake(150, 360, 60, 40);    [self.done setTitle:@"完成" forState:UIControlStateNormal];    [self.view addSubview:self.done];    [self.done addTarget:self action:@selector(click) forControlEvents:UIControlEventTouchUpInside];        }- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    [self.name resignFirstResponder];    [self.sex resignFirstResponder];    [self.hobby resignFirstResponder];    [self.phone resignFirstResponder];     }- (void)click{    self.dic = [NSMutableDictionary dictionary];    [self.dic setValue:self.name.text forKey:@"name"];    [self.dic setValue:self.sex.text forKey:@"sex"];    [self.dic setValue:self.hobby.text forKey:@"hobby"];    [self.dic setValue:self.phone.text forKey:@"phone"];    [self.delegate sendMessage:self.dic];    [self.navigationController popToRootViewControllerAnimated:YES];}