Iphone 不同页面间跳转

1. 创建一个新的viewcontroller，比如 NewOrderViewController,同时创建实现文件和头文件
2. 创建一个view，比如 NewOrderView.xib
3. 双击打开NewOrderView.xib，指定其class为 NewOrderViewController，并在 Interface Builder中将view与File Owner连接起来
4. 在RootViewController.h文件中定义 NewOrderViewController, 设置其为属性,代码如下:

@class NewOrderViewController;

@interface RootViewController : UITableViewController {

NewOrderViewController *newOrderViewController;

}

@property (nonatomic, retain) NewOrderViewController *newOrderViewController;

5. 在RootViewController.m文件中实现跳转，代码如下:
//添加按钮

- (void)viewDidLoad {

    [super viewDidLoad];

    self.navigationItem.title = @"订单列表";

    self.navigationController.navigationBar.barStyle = UIBarStyleBlack;

    UIBarButtonItem *buttonEdit = [[[UIBarButtonItem alloc] initWithTitle:@"编辑" style:UIBarButtonItemStyleBordered target:self            action:@selector(editCharacters)] autorelease];

    UIBarButtonItem *buttonAdd = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(showNewOrderView)] autorelease];

    self.navigationItem.leftBarButtonItem=buttonEdit;

    self.navigationItem.rightBarButtonItem=buttonAdd;

} 

//实现跳转

- (void) showNewOrderView {

    if (self.newOrderViewController == nil) {

        NewOrderViewController *newOrder = [[NewOrderViewController alloc] initWithNibName:@"NewOrderView" bundle:nil];

        self.newOrderViewController = newOrder;

        [newOrder release];

    }

    [self.navigationController pushViewController:self.newOrderViewController animated:YES];

｝