UITableView (used by yourself) (attribute, pass value by proxy), uitableview

UITableView (used by yourself) (attribute, pass value by proxy), uitableview

Today, we are in a hurry.

As follows:

 

 

 

 

 

 

 

The Code is as follows:

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

 

 

 

 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    FirstViewController *first=[[FirstViewController alloc]init];    UINavigationController *navc=[[UINavigationController alloc]initWithRootViewController:first];    self.window.rootViewController=navc;    return YES;}

 

 

#import <UIKit/UIKit.h>#import "SecondViewController.h"@interface FirstViewController : UIViewController<UITableViewDataSource,UITableViewDelegate,postValueDelegate>@property(strong,nonatomic)UITableView * tableview;@property(strong,nonatomic)NSMutableArray *array;@property(strong,nonatomic)NSString *st;@end

 

 

 

# Import "FirstViewController. h "@ interface FirstViewController () @ property (assign, nonatomic) int a; @ end @ implementation FirstViewController-(void) viewDidLoad {[super viewDidLoad]; self. view. backgroundColor = [UIColor yellowColor]; self. title = @ "Homepage"; UIBarButtonItem * nextItem = [[UIBarButtonItem alloc] initWithTitle: @ "next page" style: UIBarButtonItemStylePlain target: self action: @ selector (nextpage)]; self. navigationItem. rightBarButtonItem = nextItem; self. array = [NSMutableArray array]; for (int I = 1; I <20; I ++) {[self. array addObject: [NSString stringWithFormat: @ "you fell % d", I];} self. tableview = [[UITableView alloc] initWithFrame: self. view. frame style: 1]; self. tableview. separatorColor = [UIColor redColor]; self. tableview. delegate = self; self. tableview. dataSource = self; [self. view addSubview: self. tableview]; [self. tableview registerClass: [UITableViewCell class] forCellReuseIdentifier: @ "cell"];}-(void) postvalue :( NSString *) str {// self. st = str; [self. array replaceObjectAtIndex: self. a withObject: str]; [self. tableview reloadData]; // NSLog (@ "% @", self. st) ;}# set the number of lines displayed in each partition of The pragma mark Data Source-(NSInteger) tableView :( UITableView *) tableView numberOfRowsInSection :( NSInteger) section {return self. array. count ;}# content displayed in each cell of The pragma mark Data Source-(UITableViewCell *) tableView :( UITableView *) tableView cellForRowAtIndexPath :( NSIndexPath *) indexPath {// cell reuse mechanism static NSString * cellIdentity = @ "cell"; UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier: cellIdentity forIndexPath: indexPath]; cell. textLabel. text = self. array [indexPath. row]; return cell;}-(void) tableView :( UITableView *) tableView didSelectRowAtIndexPath :( NSIndexPath *) indexPath {NSLog (@ "% @", self. array [indexPath. row]); self. st = self. array [indexPath. row]; SecondViewController * second = [[SecondViewController alloc] init]; second. str = self. st; second. delegate = self; self. a = (int) indexPath. row; NSLog (@ "% d", self. a); [self. navigationController pushViewController: second animated: YES];}-(void) nextpage {SecondViewController * second = [[SecondViewController alloc] init]; second. str = self. st; [self. navigationController pushViewController: second animated: YES];}-(void) didReceiveMemoryWarning {[super didreceivemorywarning]; // Dispose of any resources that can be recreated .} /* # 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> // create a protocol. The declaration method @ protocol postValueDelegate <NSObject>-(void) postvalue :( NSString *) str; @ end @ interface SecondViewController: UIViewController <UITextFieldDelegate> @ property (strong, nonatomic) UITextField * textName; @ property (strong, nonatomic) NSString * str; @ property (strong, nonatomic) id <postValueDelegate> delegate; @ end

 

 

# Import "SecondViewController. h "@ interface SecondViewController () @ end @ implementation SecondViewController-(void) viewDidLoad {[super viewDidLoad]; self. view. backgroundColor = [UIColor greenColor]; self. navigationItem. hidesBackButton = YES; self. title = @ "last page"; self. navigationItem. leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle: @ "back" style: 2 target: self action: @ selector (backpage)]; self. textName = [[UITextField alloc] initWithFrame: CGRectMake (100,300,150, 60)]; self. textName. borderStyle = 1; self. textName. text = self. str; self. textName. delegate = self; [self. view addSubview: self. textName];}-(BOOL) textFieldShouldReturn :( UITextField *) textField {if ([textField isFirstResponder]) {[textField resignFirstResponder];} if (self. delegate) {[self. delegate postvalue: self. textName. text];} [self. navigationController popToRootViewControllerAnimated: YES]; return YES;}-(void) backpage {if (self. delegate) {[self. delegate postvalue: self. textName. text]; NSLog (@ "% @", self. textName. text);} [self. navigationController popToRootViewControllerAnimated: YES];}-(void) didReceiveMemoryWarning {[super didreceivemorywarning]; // Dispose of any resources that can be recreated .} /* # 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