UI2

// // SubViewController.h // UI2_视图切换 // // Created by zhangxueming on 15/7/3. // Copyright (c) 2015年 zhangxueming. All rights reserved. // #import <UIKit/UIKit.h> @interface SubViewController : UIViewController @end // // SubViewController.m // UI2_视图切换 // // Created by zhangxueming on 15/7/3. // Copyright (c) 2015年 zhangxueming. All rights reserved. // #import "SubViewController.h" @interface SubViewController () @end @implementation SubViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. self.view.backgroundColor = [UIColor cyanColor]; UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem]; btn.frame = CGRectMake(20, 300, self.view.frame.size.width-40, 50); btn.backgroundColor = [UIColor whiteColor]; [btn setTitle:@"视图切换" forState:UIControlStateNormal]; [btn addTarget:self action:@selector(btnClicked) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:btn]; } - (void)btnClicked { NSLog(@"-----"); if (self.view.superview) { [self.view removeFromSuperview]; } } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } /* #pragma mark - Navigation // In a storyboard-based application, you will often want to do a little preparation before navigation - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { // Get the new view controller using [segue destinationViewController]. // Pass the selected object to the new view controller. } */ @end

 

// // RootViewController.h // UI2_视图切换 // // Created by zhangxueming on 15/7/3. // Copyright (c) 2015年 zhangxueming. All rights reserved. // #import <UIKit/UIKit.h> @interface RootViewController : UIViewController @end // // RootViewController.m // UI2_视图切换 // // Created by zhangxueming on 15/7/3. // Copyright (c) 2015年 zhangxueming. All rights reserved. // #import "RootViewController.h" #import "SubViewController.h" @interface RootViewController () { SubViewController *_svc; } @end @implementation RootViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. self.view.backgroundColor = [UIColor redColor]; _svc = [[SubViewController alloc] init]; UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem]; btn.frame = CGRectMake(20, 200, self.view.frame.size.width-40, 50); [btn setTitle:@"视图切换" forState:UIControlStateNormal]; btn.backgroundColor = [UIColor whiteColor]; [btn addTarget:self action:@selector(btnClicked) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:btn]; } - (void)btnClicked { [self.view addSubview:_svc.view]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } /* #pragma mark - Navigation // In a storyboard-based application, you will often want to do a little preparation before navigation - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { // Get the new view controller using [segue destinationViewController]. // Pass the selected object to the new view controller. } */ @end

 

// // AppDelegate.m // UI2_视图切换 // // Created by zhangxueming on 15/7/3. // Copyright (c) 2015年 zhangxueming. All rights reserved. // #import "AppDelegate.h" #import "RootViewController.h" @interface AppDelegate () @end @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. RootViewController *rootViewController = [[RootViewController alloc] init]; self.window.rootViewController = rootViewController; return YES; }

 

转载于:https://www.cnblogs.com/0515offer/p/4638603.html