UI08_UITableView界面传值

AppDelegate.h

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;


@end

AppDelegate.m

#import "AppDelegate.h"
#import "RootViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate
- (void)dealloc
{
    [_window release];
    [super dealloc];
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];

    [_window release];

    RootViewController *rootVC = [[RootViewController alloc] init];
    UINavigationController *naVC = [[UINavigationController alloc] initWithRootViewController:rootVC];
    self.window.rootViewController = naVC;
    [rootVC release];
    [naVC release];


    return YES;
}

RootViewController.h

#import <UIKit/UIKit.h>

@interface RootViewController : UIViewController

@end

RootViewController.m

#import "RootViewController.h"
#import "SecondViewController.h"

#define WIDTH self.view.frame.size.width
#define HEIGHT self.view.frame.size.height

@interface RootViewController ()<UITableViewDataSource, UITableViewDelegate, takeValueDelegate>

@property(nonatomic, retain)UITableView *tableView;
@property(nonatomic, retain)NSMutableArray *arr;

@end

@implementation RootViewController
- (void)dealloc
{
    [_arr release];
    [_tableView release];
    [super dealloc];
}
- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        self.arr = [NSMutableArray arrayWithObjects:@"宋江", @"卢俊义", @"吴用", @"公孙胜", @"关胜", @"林冲", @"秦明" ,@"呼延灼" , @"花荣",@"柴进", @"李应", @"朱仝",@"鲁智深",@"武松", nil];
    }
    return self;
}


- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    //  创建一个tableView, 并且签好两个协议
    self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, WIDTH, HEIGHT) style:UITableViewStylePlain];
    [self.view addSubview:self.tableView];
    [self.tableView release];
    self.tableView.delegate = self;
    self.tableView.dataSource = self;


    //  Plist文件用法
    NSString *path = [[NSBundle mainBundle] pathForResource:@"Student" ofType:@"plist"];
    NSDictionary *dic = [NSDictionary dictionaryWithContentsOfFile:path];
    NSLog(@"%@", dic);

    //    NSMutableArray *arr = [NSMutableArray arrayWithContentsOfFile:path];
//    NSLog(@"%@", arr);


}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    NSLog(@"%ld", indexPath.row);
    SecondViewController *secondVC = [[SecondViewController alloc] init];
    //  push之后就把SecondViewController加到navigationController了
    [self.navigationController pushViewController:secondVC animated:YES];
    [secondVC release];
    secondVC.string = self.arr[indexPath.row];

    secondVC.delegate = self;

}
- (void)takeValue:(NSString *)str {
    //  把传过来的数据加到数组中
    [self.arr addObject:str];
    //  刷新tableView
    [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:UITableViewCellStyleValue1 reuseIdentifier:reuse] autorelease];
    }
    cell.textLabel.text = self.arr[indexPath.row];
    cell.detailTextLabel.text = @"大尾巴";
    cell.imageView.image = [UIImage imageNamed:@"e.jpg"];
    return cell;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.arr.count;
}

SecondViewController.h

#import <UIKit/UIKit.h>

@protocol takeValueDelegate <NSObject>

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

@end


@interface SecondViewController : UIViewController

@property(nonatomic, assign)id<takeValueDelegate>delegate;

@property(nonatomic, retain)NSString *string;

@end

SecondViewController.m

#import "SecondViewController.h"

#define WIDTH self.view.frame.size.width
#define HEIGHT self.view.frame.size.height

@interface SecondViewController ()

@property(nonatomic, retain)UITextField *textField;

@end

@implementation SecondViewController
- (void)dealloc
{
    [_textField release];
    [_string release];
    [super dealloc];
}
- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    self.view.backgroundColor = [UIColor whiteColor];

    self.textField = [[UITextField alloc] initWithFrame:CGRectMake(100, 100, 150, 50)];
    [self.view addSubview:self.textField];
    [self.textField release];
    self.textField.layer.borderWidth = 1;
    self.textField.layer.cornerRadius = 10;
    self.textField.textAlignment = NSTextAlignmentCenter;

    self.textField.text = self.string;

    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:button];
    button.frame = CGRectMake(100, 200, 100, 30);
    [button setTitle:@"返回" forState:UIControlStateNormal];
    button.layer.borderWidth = 1;
    button.layer.cornerRadius = 10;
    [button addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];


}
- (void)click:(UIButton *)button {
    [self.delegate takeValue:self.textField.text];

    [self.navigationController popToRootViewControllerAnimated:YES];
}