以编程方式创建uiTabBarController [英] Create uiTabBarController programmatically

问题描述

我想为 UITabBarController创建一个 UIView

I want to create a UIView for a UITabBarController

以下是 .h 文件的代码：

@interface TE : UIViewController <UITabBarControllerDelegate>{
    UITabBarController *tabBarController;
}
@property (nonatomic,retain) UITabBarController *tabBarController;
@end

viewDidLoad 方法：

UIViewController *testVC = [[T1 alloc] init];
UIViewController *otherVC = [[T2 alloc] init];
NSMutableArray *topLevelControllers = [[NSMutableArray alloc] init];
[topLevelControllers addObject: testVC];
[topLevelControllers addObject: otherVC];
tabBarController = [[UITabBarController alloc] init];
tabBarController.delegate = self;
[tabBarController setViewControllers:topLevelControllers animated:NO];
tabBarController.selectedIndex = 0;
self.view = tabBarController.view;

这会创建标签栏控制器，但是当我点击标签栏项目时，我收到错误：

This creates the tab bar controller, but when I click on a tab bar item, I get an error:

线程1：程序接收信号：SIGABRT

Thread1:Program receive signal: SIGABRT

修改：我通过下载和修改的版本来解决问题http://www.iphonedevcentral.com/create-uitabbarcontroller/

Edit: I solved the problem by downloading and modifying the version of http://www.iphonedevcentral.com/create-uitabbarcontroller/

推荐答案

1. 子类UITabBarController

1. Subclass UITabBarController

覆盖 - （void）loadView方法并包含以下代码

Override the - (void) loadView method and include the following code

MyCustomViewControllerOne* ctrl1 = [[[MyCustomViewControllerOne alloc] initWithNibName@"MyViewControllerOne" bundle: nil] autorelease];
UIViewController* ctrl2 = [[[UIViewController alloc] init] autorelease];
MyCustomControllerTwo* ctrl3 = [[[UIViewController alloc] initWithObject: myObj] autorelease];

ctrl1.title = @"First tab";
ctrl2.title = @"Second tab";
ctrl3.title = @"Third tab";

ctrl1.tabBarItem.image = [UIImage imageNamed:@"tab_image1.png"];
ctrl2.tabBarItem.image = [UIImage imageNamed:@"tab_image2.png"];
ctrl3.tabBarItem.image = [UIImage imageNamed:@"tab_image3.png"];

[self setViewControllers: @[ctrl1, ctrl2, ctrl3]];

这就是它。

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