Question

我有一个头文件

@interface DemoFirstViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>

@end

在此头文件的源文件中，我声明了此方法

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    AnotherViewController *anotherViewController=[[AnotherViewController alloc]   initWithNibName:@"AnotherViewController" bundle:nil];
    [self.navigationController pushViewController:anotherViewController animated:YES];

    NSLog(@"didSelectRowAtIndexPath: row=%d", indexPath.row);

}

和另一个ViewController文件是

@interface AnotherViewController : UIViewController
{
    IBOutlet UILabel *message;
}

@property (nonatomic , retain) UILabel *message;

@end

我这样做都是使用Xib文件。不是故事板。

这是tabbased Application。并且已经在Appdelegate中声明了两个viewcontroller

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    UIViewController *viewController1 = [[DemoFirstViewController alloc] initWithNibName:@"DemoFirstViewController" bundle:nil];
    UIViewController *viewController2 = [[DemoSecondViewController alloc] initWithNibName:@"DemoSecondViewController" bundle:nil];
    self.tabBarController = [[UITabBarController alloc] init];
    self.tabBarController.viewControllers = @[viewController1, viewController2];
    self.window.rootViewController = self.tabBarController;
    [self.window makeKeyAndVisible];
    return YES;

}

在点击表格单元格时，另一个ViewController没有进入。 Plz尽快回复。

Answer 1

这背后可能有几个原因：

UINavigationController应该在Appdelegate类中正确实现。
UITableView不应添加subView的任何self.view。
如果正在调用didSelectRowAtIndexPath:，那么其他方面也没关系你忘了设置tableView个代表。
```
tableView.delegate = self;
```

编辑：我看了Zeel的评论，他说他正在使用TabBar而他之前没有提到它所以我正在编辑我的答案： - < / p>

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    DemoFirstViewController *viewController1 = [[DemoFirstViewController alloc] initWithNibName:@"DemoFirstViewController" bundle:nil];
    UINavigationController *nav1 =[[UINavigationController alloc] initWithRootViewController:viewController1];
    DemoSecondViewController *viewController2 = [[DemoSecondViewController alloc] initWithNibName:@"DemoSecondViewController" bundle:nil];
    UINavigationController *nav2 =[[UINavigationController alloc] initWithRootViewController:viewController2];

    self.tabBarController = [[UITabBarController alloc] init];
    self.tabBarController.viewControllers = @[nav1, nav2];
    self.window.rootViewController = self.tabBarController;
    [self.window makeKeyAndVisible];
    return YES;
}

Answer 2

NSLog(@"Navigation Controller: %@", self.navigationController);

检查此行打印的内容。我怀疑你忘了在层次结构中添加navigationController

更新：基于您的AppDelegate代码，更新它以解决您的问题：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    UIViewController *viewController1 = [[DemoFirstViewController alloc] initWithNibName:@"DemoFirstViewController" bundle:nil];

    // here I create a Navigation Controller and set its root view controller to viewController1
    UINavigationController *navController1 = [[UINavigationController alloc] initWithRootViewController:viewController1];

    UIViewController *viewController2 = [[DemoSecondViewController alloc] initWithNibName:@"DemoSecondViewController" bundle:nil];
    self.tabBarController = [[UITabBarController alloc] init];

    // updated this line to show the navController1 (which contains viewController1)
    self.tabBarController.viewControllers = @[navController1, viewController2];
    self.window.rootViewController = self.tabBarController;
    [self.window makeKeyAndVisible];
    return YES;

}

如果甚至viewController2是一个需要推送东西的UITableViewController，在它上面做同样的事情（添加另一个UINavigationController，设置根视图控制器，并设置广告一个TabBarController的viewController）

Answer 3

上述所有答案都指向了正确的方向。如果您还没有抓住它，请检查您是否在appdelegate中添加了以下代码，

UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:self.viewController];  
self.window.rootViewController = navigationController;

再次检查。

在tableview单元格上按下新的视图控制器

3 个答案: