UIViewController

ViewController

//button事件进入下一个View

-(void)viewDidLoad

{

self.view.backgroundColor = [UIColorredColor];

[button addTarget:selfaction:@selector(buttonClick)forControlEvents:UIControlEventTouchUpInside];

}

//通过ViewController控制器切换视图

-(void)buttonClick

{

//增加显示一个新的view

    ViewController2 * vc2 = [[ViewController2alloc]init];

[selfpresentModalViewController:vc2animated:YES];

    [vc2release];

//去掉一个view的显示

  [selfdismissModalViewControllerAnimated:YES];

}

UIViewController：视图控制器

在AppDelegate.m中写：

加入头文件：#import"ViewController.h"

//整个视图范围定在(0, 0, 320, 460);

    ViewController * vc = [[ViewControlleralloc]init];

    self.window.rootViewController= vc;

    [vcrelease];

    

ViewController.m

//初始化

-(id)init

{

    self = [superinit];

    if(self)

   {

        

    }

    return self;

}

//干嘛使用的。。？？？

-(void)loadView

{

    self.view = [[[UIViewalloc]init]autorelease]; 

}

//self.view 装载(实例化)完成之后调用

-(void)viewDidLoad

{

[superviewDidLoad];

//设置这个View的颜色

self.view.backgroundColor = [UIColorredColor];

}

//viewWillAppear:视图将要出现在屏幕上

//viewDidAppear:视图已经显示在屏幕上

//viewWillDisappear:视图将要从屏幕上消失

//viewDidDisappear:视图已经从屏幕上消失

//viewDidUnload:

//dealloc:视图被销毁