iphone - 为所有 ViewController 定制导航 Controller

Question

我的AppDelegate.h

//
//  AppDelegate.h
//

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>
{
    UIWindow *window;
    UITabBarController *tabBarController;
}

@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) UITabBarController *tabBarController;

@end

我的AppDelegate.m

//
//  AppDelegate.m
//
#import "AppDelegate.h"

#import "AppNavigationController.h"

#import "ExamViewController.h"
#import "SignsViewController.h"

@implementation AppDelegate

@synthesize window = _window;
@synthesize tabBarController = _tabBarController;

- (void)dealloc
{
    [_tabBarController release];
    [_window release];
    [super dealloc];
}

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

    // Initializating our Tab Bar Controller
    tabBarController = [[UITabBarController alloc] initWithNibName:nil bundle:nil];

    // Exam Controller Setup
    ExamViewController *examViewController = [[ExamViewController alloc] initWithStyle:UITableViewStylePlain];
    AppNavigationController *examNavigationController = [[AppNavigationController alloc] initWithRootViewController:examViewController];

    examViewController.title = @"Экзамен";
    examViewController.tabBarItem.image = [UIImage imageNamed:@"icon_exam.png"];
    // -------------------------------------

    // Signs Controller Setup
    SignsViewController *signsViewController = [[SignsViewController alloc] initWithStyle:UITableViewStylePlain];
    AppNavigationController *signsNavigationController = [[AppNavigationController alloc] initWithRootViewController:signsViewController];

    signsViewController.title = @"Знаки";
    signsViewController.tabBarItem.image = [UIImage imageNamed:@"icon_signs.png"];

    // -------------------------------------

    [tabBarController  setViewControllers:[NSArray arrayWithObjects:examNavigationController, signsNavigationController, nil]];

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

    [examNavigationController release];
    [examViewController release];

    [signsNavigationController release];
    [signsViewController release];

    return YES;
}

我还有空的 UINavigationController。

我想要实现的是为所有使用它的 View Controller 定制导航栏例如:现在我只有两个 View Controller ，现在我将 self.navigationController.navigationBar.barStyle = UIBarStyleBlackOpaque; 放在 ExamViewController.m 和 SignsViewController.m 的 viewDidLoad 方法中但我可能想添加两个或更多选项卡，并希望在一处自定义导航栏。所以问题是:如何在一个地方自定义导航栏，使其在每个 View Controller 中看起来都相同，而不用在 viewDidLoad 方法中的每个 View Controller 中自定义它？

Answer 1

试试这个:.

1. 创建一个新的 View Controller ，假设为 ViewControllerTemplate.h
2. 将设计设置为 .m 文件中的 ViewControllerTemplate 导航 Controller

3. 然后，每次您想要创建 View Controller 时，只需将 ViewControllerTemplate.h 设置为其父类(super class)，它将继承该设计。

   ViewControllerTemplate *newController = [[ViewControllerTemplate alloc]init];