IPhone-多视图

标签栏 UITabBarController

导航栏UINavigationController

3个ViewController，一个控制蓝色，一个控制黄色，第三个再按下切换视图按钮时在两个视图间

切换。

根控制器任务获取多个视图，根据用户输入向用户提供适当的视图。

UINavigationController , UITabBarController , UIViewController

大部分屏幕都由一个内容视图组成，每个内容视图都有自己的控制器和输出口和动作。

如 触摸标签栏会转到标签栏控制器中，触摸其他位置会转到当前显示的内容视图对应的控制器中。

根控制器控制一个内容视图，内容视图包含一个位于屏幕底部的工具栏。

根控制器加载一个蓝色视图控制器，讲蓝色视图加载为根控制器视图的子视图。

切换视图时切换出蓝色视图控制器，然后加载黄色视图控制器，然后实例化黄色控制器。

Window-Based Application

一个窗口，委托

创建3个UIViewController 

RootViewController

Blue+Yellow(带有视图)

应用程序委托AppDelegate:

appDelegate.h:

#import <UIKit/UIKit.h>

@class SwitchViewController;

@interface AppDelegate:...{

SwitchViewController *switchViewController;

}

@property (nonatomic,retain) IBOutlet SwitchViewController *switchViewController;

@end

appDelegate.m:

#import "SwitchViewController.h"

@synthesize switchViewController;

-(void)applicationDidFinishLaunching:(UIApplication *)application{

[window addSubview:switchViewController.view];

}

-(void)dealloc{

[switchViewController release];

}

@end

switchViewController.h

@class BlueController;

@class YellowController;

@interface SwitchViewController:UIViewController{

YellowController* yellow;

BlueController* blue;

}

@property (retain,noatomic) YellowController* yellowController;

...

-(IBAction)switchView:(id)sender;

@end

SwitchViewController.m

#import "Blue.h"

..

@synthesize yellow;

-(void)viewDidLoad{

BlueViewController *blueController=[[BlueViewController alloc]initWithNibName:@"BlueView"

bundle:nil];

self.blueController=blueController;

[self.view InsertSubView:blueController.view atIndex:0];

[blueController release];

[super viewDidLoad];

}

-(IBAction)switchView:(id)sender{

if(self.yellowControler.view.superview==nil)

{

YellowController *yellowControler=[[YellowController alloc]initWithNibName:@"yellowController" bundle:nil ];

self.yellowController=yellowController;

[yellowController release];

}

[blueViewController.view removeFromSuperview];

[self.view insertSubview:yellowController.view atIndex:0];

}

------------------- alert

UIAlertView * alert=[[UIAlertView alloc] initWithTitle:@"yellow" message:@"" delegate:nil

delegate:nil cancelButtonTitle:@"" otherButtonTitles:nil];

[alert show];

[alert release];

------------------- animation

[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:yes];

[UIView commitAnimations]