UI3_UIViewController生命周期

//
//  SecondViewController.h
//  UI3_UIViewController生命周期
//
//  Created by zhangxueming on 15/7/2.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface SecondViewController : UIViewController

@end

//
//  SecondViewController.m
//  UI3_UIViewController生命周期
//
//  Created by zhangxueming on 15/7/2.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import "SecondViewController.h"

@interface SecondViewController ()

@end

@implementation SecondViewController

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
btn.frame = CGRectMake(50, 400, self.view.frame.size.width-100, 50);
btn.backgroundColor = [UIColor whiteColor];

[btn setTitle:@"视图模式跳转-First" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(btnClicked) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];

self.view.backgroundColor = [UIColor cyanColor];
}

- (void)btnClicked
{
if ([self.view superview]) {
NSLog(@"123");
[self.view superview].backgroundColor=[UIColor redColor];

[self.view removeFromSuperview];
}
//使消失当前视图控制器视图
//[self dismissViewControllerAnimated:YES completion:nil];
}

- (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

//
//  ViewController.m
//  UI3_UIViewController生命周期
//
//  Created by zhangxueming on 15/7/2.
//  Copyright (c) 2015年 zhangxueming. All rights reserved.
//

#import "ViewController.h"
#import "SecondViewController.h"

@interface ViewController ()

@end

@implementation ViewController
//视图控制器

//当一个视图控制器被创建，并在屏幕上显示的时候。 代码的执行顺序
//1、 alloc                                   创建对象，分配空间
//2、init (initWithNibName) 初始化对象，初始化数据
//3、loadView                          从nib载入视图 ，通常这一步不需要去干涉。除非你没有使用xib文件创建视图
//4、viewDidLoad                   载入完成，可以进行自定义数据以及动态创建其他控件
//5、viewWillAppear              视图将出现在屏幕之前，马上这个视图就会被展现在屏幕上了
//6、viewDidAppear               视图已在屏幕上渲染完成
//当一个视图被移除屏幕并且销毁的时候的执行顺序，这个顺序差不多和上面的相反
//1、viewWillDisappear            视图将被从屏幕上移除之前执行
//2、viewDidDisappear             视图已经被从屏幕上移除，用户看不到这个视图了
//3、dealloc                           视图被销毁，此处需要对你在init和viewDidLoad中创建的对象进行释放

- (void)loadView
{
[super loadView];
NSLog(@"开始加载视图");
}

- (void)viewDidLoad {
[super viewDidLoad];
NSLog(@"视图加载完成");
// Do any additional setup after loading the view, typically from a nib.
//UIViewController

UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
btn.frame = CGRectMake(50, 100, self.view.frame.size.width-100, 50);
btn.backgroundColor = [UIColor whiteColor];

[btn setTitle:@"视图模式跳转-Second" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(btnClicked) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];

self.view.backgroundColor= [UIColor redColor];
}

- (void)btnClicked
{
SecondViewController *svc = [[SecondViewController alloc] init];

//设置跳转模式
//UIModalTransitionStylePartialCurl 翻页效果
svc.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
//显示视图控制器中的view

[self presentViewController:svc animated:YES completion:nil];
}

//视图将要显示
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
NSLog(@"Appering 视图将要显示");
}

//视图已经显示
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
NSLog(@"Appeared 视图已经显示");
}

//视图将要消失
- (void)viewWillDisappear:(BOOL)animated
{
NSLog(@"Disappearing 视图将要消失");
}
//视图已经消失
- (void)viewDidDisappear:(BOOL)animated
{
NSLog(@"Disappeared 视图消失");
}

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

@end