Question

我有一个带tabBarView控制器的应用程序。在UITabBarView的1个部分中，我有一个导航控制器的表控件。我点击该行，它将我带到相应的视图，顶部有一个后退按钮，让我回到桌面。这一切都很好，但我想添加一个电子邮件按钮，一直到右边（基本上任何按钮）将链接到我的电子邮件方法。

这是我在我的app委托中的代码，它执行所有操作，但添加了链接到方法的按钮。如果有人知道如何做到这一点，将不胜感激。谢谢！

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{    
    self.tabBarItem = [[[UITabBarItem alloc] init] autorelease];

    RootViewController *view1 = [[RootViewController alloc] initWithNibName:@"RootViewController" bundle:nil];
    view1.title= @"Current";

    Upcoming *view2 = [[Upcoming alloc] initWithNibName:@"Upcoming" bundle:nil];
    view2.title = @"Upcoming";

    historyViewController *view3 = [[historyViewController alloc] initWithNibName:@"history" bundle:nil];
    view3.title = @"history";

    usageViewController *view4 = [[usageViewController alloc] initWithNibName:@"usageView" bundle:nil];
    view4.title = @"usage";

    RandomGeneratorViewController *view5 = [[RandomGeneratorViewController alloc] initWithNibName:@"RandomGenerator" bundle:nil];
    view5.title = @"more";

    //  UINavigationController *nav1 = [[UINavigationController alloc] initWithRootViewController:view1];
    UINavigationController *nav1 = [[UINavigationController alloc] initWithRootViewController:view1];
    UINavigationController *nav2 = [[UINavigationController alloc] initWithRootViewController:view2];
    UINavigationController *nav3 = [[UINavigationController alloc] initWithRootViewController:view3];
    UINavigationController *nav4 = [[UINavigationController alloc] initWithRootViewController:view4];
    UINavigationController *nav5 = [[UINavigationController alloc] initWithRootViewController:view5];

    [view1 release];
    [view2 release];
    [view3 release];
    [view4 release];
    [view5 release];

    self.tabBarController = [[[UITabBarController alloc] init] autorelease];
    self.tabBarController.viewControllers = [NSArray arrayWithObjects:nav1,nav2,nav3,nav4,nav5,nil];
    self.tabBarItem = [[[UITabBarItem alloc] init] autorelease];

    [nav1 release];
    [nav2 release];
    [nav3 release];
    [nav4 release];
    [nav5 release];

    NSArray *tabBarItems = self.tabBarController.tabBar.items; 

    UIImage *tab1 = [UIImage imageNamed:@"trophy.png"]; 
    UIImage *tab2 = [UIImage imageNamed:@"12-eye.png"]; 
    UIImage *tab3 = [UIImage imageNamed:@"169-8ball.png"]; 
    UIImage *tab4 = [UIImage imageNamed:@"30-key.png"]; 
    UIImage *tab5 = [UIImage imageNamed:@"30-key.png"]; 

    NSArray *tabBarImages = [[NSArray alloc] initWithObjects:tab1, tab2, tab3, tab4, tab5, nil]; 

    NSInteger tabBarItemCounter; 

    for (tabBarItemCounter = 0; tabBarItemCounter < [tabBarItems count]; tabBarItemCounter++) 
    { 
        UITabBarItem *tabBarItem = [tabBarItems objectAtIndex:tabBarItemCounter]; 
        tabBarItem.image = [tabBarImages objectAtIndex:tabBarItemCounter]; 
    } 

    [window addSubview:tabBarController.view];
    [window makeKeyAndVisible];

    return YES;
}

Answer 1

1.我可以确认你的问题是：按下按钮时如何执行方法

2.如果您想执行该方法，也许您应该使用IBAction来执行此操作。并选择了事件去做。

3.您还提到要使用邮件app.you需要添加库，名称为：MessageUi。

也许这个页面可以帮到你：http：//stackoverflow.com/questions/1643007/iboutlet-and-ibaction

我希望这会对你有所帮助

使用将链接到方法的代码添加UINavigationItem

1 个答案: