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

#import "AppDelegate.h"@interface AppDelegate ()@end@implementation AppDelegate- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {self.window.rootViewController=[[UINavigationController alloc]initWithRootViewController:[[RootTableViewController alloc]initWithStyle:UITableViewStylePlain]];return YES;
}

#import <UIKit/UIKit.h>@interface RootTableViewController : UITableViewController@property(strong,nonatomic)  NSMutableArray * array;@end

#import "RootTableViewController.h"
#import "ViewController.h"
@interface RootTableViewController ()<postValuedelegate>
{//记录选中行的索引值NSIndexPath * currentInfrxPath;
}
@end@implementation RootTableViewController- (void)viewDidLoad {[super viewDidLoad];//添加liftbarabuttonself.navigationItem.leftBarButtonItem=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addItem)];self.navigationItem.rightBarButtonItem = self.editButtonItem;self.array=[NSMutableArray array];[self.array addObject:@"zhangsan"];[self.array addObject:@"lisi"];[self.array addObject:@"wangwu"];[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"reuseIdentifier"];// Uncomment the following line to preserve selection between presentations.// self.clearsSelectionOnViewWillAppear = NO;// Uncomment the following line to display an Edit button in the navigation bar for this view controller.}-(void)addItem
{UIAlertController *alertcontroller=[UIAlertController alertControllerWithTitle:@"确定要增加吗" message:@"输入姓名？" preferredStyle:(UIAlertControllerStyleAlert)];UIAlertAction * ok=[UIAlertAction actionWithTitle:@"增加" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {UITextField * textName= alertcontroller.textFields[0];[self.array addObject:textName.text];[self.tableView reloadData];//        NSLog(@"真正的操作");}];[alertcontroller addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {textField.placeholder=@"添加姓名";}];[alertcontroller addAction:ok];[self presentViewController:alertcontroller animated:YES completion:nil];}-(void)postvalue:(NSString *)username
{//为集合指定索引位置元素赋值self.array[currentInfrxPath.row]=username;NSLog(@"%@",username);//刷新数据[self.tableView reloadData];
}- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];// Dispose of any resources that can be recreated.
}#pragma mark - Table view data source- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {return 1;
}- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return self.array.count;
}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"reuseIdentifier" forIndexPath:indexPath];cell.textLabel.text=self.array[indexPath.row];return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{currentInfrxPath=indexPath;ViewController *vc=[[ViewController alloc]init];vc.name=self.array[indexPath.row];vc.delegate=self;[self.navigationController pushViewController:vc animated:YES];
}// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {// Return NO if you do not want the specified item to be editable.return YES;
}// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {if (editingStyle == UITableViewCellEditingStyleDelete) {// Delete the row from the data source[self.array removeObjectAtIndex:currentInfrxPath.row];[tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];} else if (editingStyle == UITableViewCellEditingStyleInsert) {// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view}
}// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {//1.找到指定位置集合元素NSString * name= self.array[fromIndexPath.row];//2.删除集合元素[self.array removeObject:name];//3插入集合[self.array  insertObject:name atIndex:toIndexPath.row];NSLog(@"%@",self.array);}// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {// Return NO if you do not want the item to be re-orderable.return YES;
}/*
#pragma mark - Navigation// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {// Get the new view controller using [segue destinationViewController].// Pass the selected object to the new view controller.
}
*/@end

#import <UIKit/UIKit.h>@protocol postValuedelegate <NSObject>-(void)postvalue:(NSString *) username;@end@interface ViewController : UIViewController<UITextFieldDelegate>@property(strong,nonatomic) NSString *name;@property(strong,nonatomic) UITextField * textNmae;@property(strong,nonatomic) id<postValuedelegate> delegate;@end

#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];self.view.backgroundColor=[UIColor greenColor];self.textNmae=[[UITextField alloc]initWithFrame:CGRectMake(100, 100, 150, 44)];self.textNmae.delegate=self;self.textNmae.borderStyle=1;self.textNmae.text=self.name;[self.view addSubview:self.textNmae];
}-(BOOL)textFieldShouldReturn:(UITextField *)textField
{if (self.delegate) {[self.delegate postvalue:textField.text];}if ([textField isFirstResponder]) {[textField resignFirstResponder];}[self.navigationController popViewControllerAnimated:YES];return YES;
}
- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];// Dispose of any resources that can be recreated.
}@end