16.1、UIViewController模式窗口跳转-OC+UI

#import "ccyViewController.h"
#import "childViewController.h"

@interface ccyViewController ()

@end

@implementation ccyViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}

//代码会写在这里
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
//设置视图控制器颜色
self.view.backgroundColor = [UIColor orangeColor];
//视图控制器的位置
NSLog(@"x = %f",self.view.frame.origin.x);
NSLog(@"y = %f",self.view.frame.origin.y);
NSLog(@"w = %f",self.view.frame.size.width);
NSLog(@"h = %f",self.view.frame.size.height);
/*
x = 0.000000
y = 20.000000 - 视图控制器 不包括 状态栏的视图
w = 320.000000
h = 460.000000
*/

//视图跳转
UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
btn.frame = CGRectMake(10, 30, 300, 30);
[btn setTitle:@"视图控制窗口切换" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(btnClick) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];

}

- (void)btnClick
{
//每次按下会新建一个
childViewController * chvn = [[childViewController alloc] init];
//切换方式，默认是从下想上。
/*
UIModalTransitionStyleCoverVertical = 0, － 默认 － 从下向上移动
UIModalTransitionStyleFlipHorizontal, － 横向翻转
UIModalTransitionStyleCrossDissolve, － 渐变cross
UIModalTransitionStylePartialCurl, － 翻书
*/
chvn.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentViewController:chvn animated:YES completion:^{
}];
[chvn release];

}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

@end

#import "childViewController.h"
#import "ccyViewController.h"

@interface childViewController ()

@end

@implementation childViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor greenColor];
//视图跳转
UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
btn.frame = CGRectMake(10, 30, 300, 30);
[btn setTitle:@"关闭模式对话窗口" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(btnClick) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];

}

- (void)btnClick
{
//关闭模式对话窗口
[self dismissViewControllerAnimated:YES completion:^{
}];
//区别 ［新增一个，这样多出来一个，并不是回到以前那个窗口，这个是错的］
//ccyViewController * chvn = [[ccyViewController alloc] init];
//[self presentViewController:chvn animated:YES completion:^{
//}];
//[chvn release];

}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.

}

@end

#import "ccyAppDelegate.h"
#import "ccyViewController.h"//增加头文件

@implementation ccyAppDelegate

- (void)dealloc
{
[_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.
ccyViewController *cvm = [[ccyViewController alloc] init];

//这个是错误的，实际计数器加1是cvm.view，不是cvm
//[self.window addSubview:cvm.view];
//[cvm release];
// 设置一个视图控制器为主视图控制器 [默认颜色 是透明]
self.window.rootViewController = cvm;
[cvm release];

self.window.backgroundColor = [UIColor redColor];
[self.window makeKeyAndVisible];
return YES;
}