iOS--页面跳转(UITableView)

本文只要实现运用（UITableView）表格实现页面的传值，同时运用了代理（委托）传值。

目录文件列表如下:

AddressBookViewController.h

#import <UIKit/UIKit.h>
#import "ContentViewController.h"
@interface AddressBookViewController : UIViewController<UITableViewDelegate,UITableViewDataSource,postValueDelegate>

@end

 

AddressBookViewController.m

 

#import "AddressBookViewController.h"

@interface AddressBookViewController ()

@property(strong,nonatomic) UITableView *adderbookview;
@property(strong,nonatomic) NSMutableArray *person;
@property(strong,nonatomic) NSString *str;

// 定义一个全局变量来接收行数
@property(assign,nonatomic)int number;

@end

@implementation AddressBookViewController

- (void)viewDidLoad {
    // 设置导航栏名称
    self.view.backgroundColor=[UIColor colorWithRed:0.344 green:0.976 blue:1.000 alpha:1.000];
    self.title=@"通讯录";
    
    //  设置导航栏右边按钮
    UIBarButtonItem *nextItem=[[UIBarButtonItem alloc] initWithTitle:@"next" style: UIBarButtonItemStylePlain target:self action:@selector(nextPage)];
    self.navigationItem.rightBarButtonItem=nextItem;
    
    self.person=[NSMutableArray array];
    for (int i=1; i<15; i++) {
        [self.person addObject:[NSString stringWithFormat:@"第%d个联系人",i]];
    }
    // 初始化  指定样式
    self.adderbookview=[[UITableView alloc] initWithFrame:self.view.frame style:1];
    //  指定代理
    self.adderbookview.delegate=self;
    self.adderbookview.dataSource=self;
    [self.view addSubview:self.adderbookview
     ];
    
    [self.adderbookview registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
    
    self.adderbookview.separatorColor=[UIColor colorWithRed:1.000 green:0.739 blue:0.353 alpha:1.000];
    
}
#pragma mark - 跳转下一页的方法
-(void)nextPage
{
    ContentViewController *contentV=[[ContentViewController alloc] init];
    contentV.str=self.str;
    [self.navigationController pushViewController:contentV animated:YES];
}

#pragma mark - 代理方法  显示选中行的单元格信息
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSLog(@"%@",self.person[indexPath.row]);
    
    self.str=self.person[indexPath.row];
    ContentViewController *contentV=[[ContentViewController alloc] init];
    contentV.str=self.str;
    contentV.delegate=self;
    self.number=(int)indexPath.row;
    
    [self.navigationController pushViewController:contentV animated:YES];
}

#pragma mark - 设置显示分区数量
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

#pragma mark - 数据源 每个分区对应的函数设置
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.person.count;
}

#pragma mark - 数据源 每个单元格的内容
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *cellIdentity=@"cell";
    UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:cellIdentity forIndexPath:indexPath];
    cell.textLabel.text=self.person[indexPath.row];
    
    return cell;
}

#pragma mark - 实现代理的方法
-(void)postValue:(NSString *)str
{
    [self.person replaceObjectAtIndex:self.number withObject:str];
    [self.adderbookview reloadData];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

 

 

 

 

ContentViewController.h

#import <UIKit/UIKit.h>

@protocol postValueDelegate <NSObject>

-(void)postValue:(NSString *) str;

@end

@interface ContentViewController : UIViewController<UITextFieldDelegate>

@property(strong,nonatomic) UITextField *textInfo;
@property(strong,nonatomic) NSString *str;
@property(strong,nonatomic) id<postValueDelegate> delegate;

@end

 

ContentViewController.m

#import "ContentViewController.h"

@interface ContentViewController ()

@end

@implementation ContentViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // 设置导航栏名称及整个背景的颜色
    self.view.backgroundColor=[UIColor colorWithRed:1.000 green:0.955 blue:0.563 alpha:1.000];
    self.title=@"详情";
    
    // 设置导航栏左边的按钮
    self.navigationItem.leftBarButtonItem=[[UIBarButtonItem alloc] initWithTitle:@"back" style:2 target:self action:@selector(backPage)];
    // 添加输入框 UITextField
    self.textInfo=[[UITextField alloc] initWithFrame:CGRectMake(100, 100, 200, 50)];
    self.textInfo.borderStyle=2;
    self.textInfo.text=self.str;
    self.textInfo.delegate=self;
    [self.view addSubview:self.textInfo];
    
}

#pragma mark - 返回上一页的方法
-(void)backPage
{
    [self.navigationController popToRootViewControllerAnimated:YES];
}

#pragma mark - 点击空白处隐藏键盘的方法
-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    [self.textInfo resignFirstResponder];
}

#pragma mark - 点击 return 返回的方法
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
    if ([textField isFirstResponder]) {
        [textField resignFirstResponder];
    }
    
    if (self.delegate) {
        [self.delegate postValue:self.textInfo.text];
    }
    [self.navigationController popToRootViewControllerAnimated:YES];
    
    return YES;
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
@end

 

AppDelegate.h

#import <UIKit/UIKit.h>
#import "AddressBookViewController.h"
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;

@end

 

AppDelegate.m

#import "AppDelegate.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    AddressBookViewController *AddressBook=[[AddressBookViewController alloc] init];
    
    UINavigationController *na=[[UINavigationController alloc] initWithRootViewController:AddressBook];
    self.window.rootViewController=na;
    return YES;
}
.........
@end

注意：

1、在第一页只需要点击UITableView对应的值；

2、在第二页需要按键盘上的 return 健才能传值到第一页。

运行结果:

2016-03-16