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  • 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

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  • 原文地址:https://www.cnblogs.com/bolin-123/p/5284809.html
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