typedef NS_OPTIONS(NSUInteger, UIViewAutoresizing) {
 UIViewAutoresizingNone   = 0, //不進行自動調整
 UIViewAutoresizingFlexibleLeftMargin = 1 << 0, //自動調整與superview左側距離，右側距離保持不變
 UIViewAutoresizingFlexibleWidth = 1 << 1, //自動調整控件自身寬度，保證與superview左右距離不變
 UIViewAutoresizingFlexibleRightMargin = 1 << 2, //自動調整與superview右側距離，左側距離保持不變
 UIViewAutoresizingFlexibleTopMargin = 1 << 3, //自動調整與superview頂部距離，底部距離保持不變
 UIViewAutoresizingFlexibleHeight = 1 << 4, //自動調整控件自身高度，保證與superview上下距離不變
 UIViewAutoresizingFlexibleBottomMargin = 1 << 5 //自動調整與superview底部距離，頂部距離保持不變
};

//
// AppDelegate.m
// UIViewAndUIScrollView
//
// Created by Kenshin Cui on 14-2-23.
// Copyright (c) 2014年 Kenshin Cui. All rights reserved.
//

#import "AppDelegate.h"
#import "KCMainViewController.h"
#import "KCTransformViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate
  

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 
 self.window=[[UIWindow alloc]initWithFrame:[UIScreen mainScreen].applicationFrame];
 
 KCMainViewController *mainController=[[KCMainViewController alloc]init];
 self.window.rootViewController=mainController;
 self.window.backgroundColor=[UIColor colorWithRed:249/255.0 green:249/255.0 blue:249/255.0 alpha:1];

 [self.window makeKeyAndVisible];
 
 return YES;
}

- (void)applicationWillResignActive:(UIApplication *)application {
 // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
 // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

- (void)applicationDidEnterBackground:(UIApplication *)application {
 // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
 // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

- (void)applicationWillEnterForeground:(UIApplication *)application {
 // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
 // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

- (void)applicationWillTerminate:(UIApplication *)application {
 // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}

@end

//
// KCMainViewController.m
// UIViewAndUIScrollView
//
// Created by Kenshin Cui on 14-2-23.
// Copyright (c) 2014年 Kenshin Cui. All rights reserved.
//

#import "KCMainViewController.h"

@interface KCMainViewController (){
 UIButton *_btn; //私有變量
}

@end

@implementation KCMainViewController

- (void)viewDidLoad {
 [super viewDidLoad];
 
 //添加一個Button
 _btn=[[UIButton alloc]initWithFrame:CGRectMake(60, 100, 200, 50)];
 _btn.backgroundColor=[UIColor orangeColor];
 [_btn setTitle:@"Hello,world!" forState:UIControlStateNormal];
 _btn.autoresizingMask=UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleLeftMargin;
 [self.view addSubview:_btn];
 
}

#pragma mark 屏幕旋轉事件
-(void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation{
 NSLog(@"%@",NSStringFromCGRect(_btn.frame));
}
@end

//
// KCTransformViewController.m
// UIViewAndUIScrollView
//
// Created by Kenshin Cui on 14-2-23.
// Copyright (c) 2014年 Kenshin Cui. All rights reserved.
//

#import "KCTransformViewController.h"
//定義rgb顏色
#define NORMAL_COLOR [UIColor colorWithRed:75/255.0 green:160/255.0 blue:253/255.0 alpha:1]
#define HIGHLIGHTED_COLOR [UIColor colorWithRed:197/255.0 green:221/225.0 blue:249/225.0 alpha:1]
//按鈕操作
typedef void(^ ButtonHandle)();

@interface KCTransformViewController (){
 UIImageView *_imageView;//圖片控件
 UIButton *_btnRotation;//旋轉按鈕
 UIButton *_btnScale;//縮放按鈕
 UIButton *_btnTranslate;//移動按鈕
}

@end

@implementation KCTransformViewController

- (void)viewDidLoad {
 [super viewDidLoad];
 
 [self addImageView];
 [self addRotationButton];
 [self addScaleButton];
 [self addTranslateButton];
 
}

#pragma mark 添加圖片控件
-(void)addImageView{
 //直接使用圖片名稱，系統(tǒng)會自動到資源文件中找到對應的文件
 UIImage *image=[UIImage imageNamed:@"promo_ios8.png"];
 //如果使用initWithImage進行初始化則控件大小會自動設置成圖片大小
 _imageView=[[UIImageView alloc]initWithImage:image];
 _imageView.frame=CGRectMake(20, 20, 280, 154);
 //設置內容填充模式為等比例填充
 _imageView.contentMode=UIViewContentModeScaleAspectFit;
 //self.view就是每個視圖控制器中的view屬性
 [self.view addSubview:_imageView];
}

#pragma mark 添加旋轉按鈕
-(void)addRotationButton{
 _btnRotation=[self getButton];
 _btnRotation.frame=CGRectMake(20, 400, 280, 30);
 [_btnRotation setTitle:@"旋轉" forState:UIControlStateNormal];
 //添加按鈕點擊事件
 [_btnRotation addTarget:self action:@selector(rotation:) forControlEvents:UIControlEventTouchUpInside];
 [self.view addSubview:_btnRotation];
}

#pragma mark 添加縮放按鈕
-(void)addScaleButton{
 //在上面一個按鈕位置的基礎上確認當前位置
 CGRect scaleButtonFrame=_btnRotation.frame;
 scaleButtonFrame.origin.y+=40;
 _btnScale =[self getButton];
 _btnScale.frame=scaleButtonFrame;
 [_btnScale setTitle:@"縮放" forState:UIControlStateNormal];
 //添加按鈕點擊事件
 [_btnScale addTarget:self action:@selector(scale:) forControlEvents:UIControlEventTouchUpInside];
 [self.view addSubview:_btnScale];
}

#pragma mark 添加移動按鈕
-(void)addTranslateButton{
 CGRect translateButtonFrame=_btnScale.frame;
 translateButtonFrame.origin.y+=40;
 _btnTranslate =[self getButton];
 _btnTranslate.frame=translateButtonFrame;
 [_btnTranslate setTitle:@"移動" forState:UIControlStateNormal];
 [_btnTranslate addTarget:self action:@selector(translate:) forControlEvents:UIControlEventTouchUpInside];
 [self.view addSubview:_btnTranslate];
 
}

#pragma mark 圖片旋轉方法,注意參數(shù)中的btn表示當前點擊按鈕
-(void)rotation:(UIButton *)btn{
 [self animation:^{
 //注意旋轉角度必須是弧度，不是角度
 CGFloat angle=M_PI_4;//M開頭的宏都是和數(shù)學（Math）相關的宏定義，M_PI_4表示四分之派，M_2_PI表示2派
 //使用CGAffineTransformMakeRotation獲得一個旋轉角度形變
 //但是需要注意tranform的旋轉不會自動在原來的角度上進行疊加，所以下面的方法旋轉一次以后再點擊按鈕不會旋轉了
 //_imageView.transform=CGAffineTransformMakeRotation(angle);
 //利用CGAffineTransformRotate在原來的基礎上產生一個新的角度(當然也可以定義一個全局變量自己累加)
 _imageView.transform=CGAffineTransformRotate(_imageView.transform, angle);
 
 }];
}

#pragma mark 圖片縮放方法
-(void)scale:(UIButton *)btn{
// [self animation:^{
// CGFloat scalleOffset=0.9;
// //_imageView.transform=CGAffineTransformMakeScale(scalleOffset, scalleOffset);
// _imageView.transform= CGAffineTransformScale(_imageView.transform, scalleOffset, scalleOffset);
// }];
 //通常我們使用UIView的靜態(tài)方法實現(xiàn)動畫而不是自己寫一個方法
 [UIView animateWithDuration:0.5 animations:^{
 CGFloat scalleOffset=0.9;
 //_imageView.transform=CGAffineTransformMakeScale(scalleOffset, scalleOffset);
 _imageView.transform= CGAffineTransformScale(_imageView.transform, scalleOffset, scalleOffset);
 }];
}

#pragma mark 圖片移動方法
-(void)translate:(UIButton *)btn{
 [self animation:^{
 CGFloat translateY=50;
 //_imageView.transform=CGAffineTransformMakeTranslation(0, translateY);
 _imageView.transform=CGAffineTransformTranslate(_imageView.transform, 0, translateY);
 }];
}

#pragma mark 動畫執(zhí)行方法，注意這里可以使用UIView的animateWithDuration方法代替這里只是為了演示
-(void)animation:(ButtonHandle)handle{
 //開始動畫
 [UIView beginAnimations:@"animation" context:nil];
 //設置動畫執(zhí)行時間
 [UIView setAnimationDuration:0.5];
 
 handle();
 
 //執(zhí)行動畫操作
 [UIView commitAnimations];
 
}

#pragma mark 取得一個按鈕,統(tǒng)一按鈕樣式
-(UIButton *)getButton{
 UIButton *button =[[UIButton alloc]init ];
 //設置正常狀態(tài)下字體顏色
 [button setTitleColor:NORMAL_COLOR forState:UIControlStateNormal];
 //設置高亮狀態(tài)下的字體顏色
 [button setTitleColor:HIGHLIGHTED_COLOR forState:UIControlStateHighlighted];
 return button;
}

@end

//
// KCScrollViewController.h
// UIViewAndUIScrollView
//
// Created by Kenshin Cui on 14-2-23.
// Copyright (c) 2014年 Kenshin Cui. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface KCScrollViewController : UIViewController

@property (nonatomic,strong) UIScrollView *scrollView;

@property (nonatomic,strong) UIImageView *imageView;

@end

//
// KCScrollViewController.m
// UIViewAndUIScrollView
//
// Created by Kenshin Cui on 14-2-23.
// Copyright (c) 2014年 Kenshin Cui. All rights reserved.
//

#import "KCScrollViewController.h"

//實現(xiàn)UIScrollView代理
@interface KCScrollViewController ()<UIScrollViewDelegate>

@end

@implementation KCScrollViewController

- (void)viewDidLoad {
 [super viewDidLoad];
 
 //添加scrollView控件
 //注意UIScreen代表當前屏幕對象，其applicationFrame是當前屏幕內容區(qū)域
 _scrollView =[[UIScrollView alloc]initWithFrame:[UIScreen mainScreen].applicationFrame];
 //_scrollView.backgroundColor=[UIColor redColor];
 _scrollView.contentMode=UIViewContentModeScaleToFill;
 [self.view addSubview:_scrollView];
 
 
 //添加圖片控件
 UIImage *image=[UIImage imageNamed:@"wwdc14-labs-hero-background.jpg"];
 _imageView=[[UIImageView alloc]initWithImage:image];
 [_scrollView addSubview:_imageView];
 
 
 
 //contentSize必須設置,否則無法滾動，當前設置為圖片大小
 _scrollView.contentSize=_imageView.frame.size;
 
 //實現(xiàn)縮放：maxinumZoomScale必須大于minimumZoomScale同時實現(xiàn)viewForZoomingInScrollView方法
 _scrollView.minimumZoomScale=0.6;
 _scrollView.maximumZoomScale=3.0;
 //設置代理
 _scrollView.delegate=self;
 

 //邊距，不屬于內容部分，內容坐標（0，0）指的是內容的左上角不包括邊界
 //_scrollView.contentInset=UIEdgeInsetsMake(10, 20, 10, 20);
 
 //顯示滾動內容的指定位置
 //_scrollView.contentOffset=CGPointMake(10, 0);
 
 //隱藏滾動條
 _scrollView.showsHorizontalScrollIndicator=NO;
 _scrollView.showsVerticalScrollIndicator=NO;
 
 //禁用彈簧效果
 //_scrollView.bounces=NO;
}

#pragma mark 實現(xiàn)縮放視圖代理方法，不實現(xiàn)此方法無法縮放
-(UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{
 return _imageView;
}
-(void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView{
 NSLog(@"scrollViewWillBeginDecelerating");
}
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
 NSLog(@"scrollViewDidEndDecelerating");
}
-(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
 NSLog(@"scrollViewWillBeginDragging");
}
-(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
 NSLog(@"scrollViewDidEndDragging");
}
-(void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:(UIView *)view{
 NSLog(@"scrollViewWillBeginZooming");
}
-(void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(CGFloat)scale{
 NSLog(@"scrollViewDidEndZooming");
}
//-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
// NSLog(@"scrollViewDidScroll");
//}

#pragma mark 當圖片小于屏幕寬高時縮放后讓圖片顯示到屏幕中間
-(void)scrollViewDidZoom:(UIScrollView *)scrollView{
 CGSize originalSize=_scrollView.bounds.size;
 CGSize contentSize=_scrollView.contentSize;
 CGFloat offsetX=originalSize.width>contentSize.width?(originalSize.width-contentSize.width)/2:0;
 CGFloat offsetY=originalSize.height>contentSize.height?(originalSize.height-contentSize.height)/2:0;

 _imageView.center=CGPointMake(contentSize.width/2+offsetX, contentSize.height/2+offsetY);
}

@end

//
// KCPerson.h
// ARC
//
// Created by Kenshin Cui on 14-2-23.
// Copyright (c) 2014年 Kenshin Cui. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface KCPerson : NSObject

@property (nonatomic,assign) int no;

@end

//
// KCPerson.m
// ARC
//
// Created by Kenshin Cui on 14-2-23.
// Copyright (c) 2014年 Kenshin Cui. All rights reserved.
//

#import "KCPerson.h"

@implementation KCPerson

-(NSString *)description{
 return [NSString stringWithFormat:@"no=%i",_no];
}

@end

//
// main.m
// ARC
//
// Created by Kenshin Cui on 14-2-23.
// Copyright (c) 2014年 Kenshin Cui. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "KCPerson.h"

int main(int argc, const char * argv[]) {
 @autoreleasepool {
 
 //strong
 __strong KCPerson *person1=[[KCPerson alloc]init];
 __strong KCPerson *person2=person1;
 person1.no=1;
 NSLog(@"%@",person2); //結果：no=1
 person1=nil;
 NSLog(@"%@",person2); //結果：no=1
 
 
 //weak
 __strong KCPerson *person3=[[KCPerson alloc]init];
 __weak KCPerson *person4=person3;
 person3.no=3;
 NSLog(@"%@",person4); //結果：no=3
 person3=nil;
 NSLog(@"%@",person4); //結果：(null)

 }
 return 0;
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
 <key>0.jpg</key>
 <string>iphone 5s</string>
 <key>1.jpg</key>
 <string>iphone 5c</string>
 <key>2.jpg</key>
 <string>ipad min with retain</string>
 <key>3.jpg</key>
 <string>ipad air</string>
 <key>4.jpg</key>
 <string>ipod</string>
 <key>5.jpg</key>
 <string>ipod touch</string>
 <key>6.jpg</key>
 <string>mac book pro</string>
 <key>7.jpg</key>
 <string>mac book air</string>
 <key>8.jpg</key>
 <string>imac</string>
</dict>
</plist>

//
// KCMainViewController.m
// ImageViewer
//
// Created by Kenshin Cui on 14-2-23.
// Copyright (c) 2014年 Kenshin Cui. All rights reserved.
//

#import "KCMainViewController.h"
#define SCREEN_WIDTH 320
#define SCREEN_HEIGHT 568
#define IMAGEVIEW_COUNT 3

@interface KCMainViewController ()<UIScrollViewDelegate>{
 UIScrollView *_scrollView;
 UIImageView *_leftImageView;
 UIImageView *_centerImageView;
 UIImageView *_rightImageView;
 UIPageControl *_pageControl;
 UILabel *_label;
 NSMutableDictionary *_imageData;//圖片數(shù)據
 int _currentImageIndex;//當前圖片索引
 int _imageCount;//圖片總數(shù)
}

@end

@implementation KCMainViewController

- (void)viewDidLoad {
 [super viewDidLoad];
 //加載數(shù)據
 [self loadImageData];
 //添加滾動控件
 [self addScrollView];
 //添加圖片控件
 [self addImageViews];
 //添加分頁控件
 [self addPageControl];
 //添加圖片信息描述控件
 [self addLabel];
 //加載默認圖片
 [self setDefaultImage];
}

#pragma mark 加載圖片數(shù)據
-(void)loadImageData{
 //讀取程序包路徑中的資源文件
 NSString *path=[[NSBundle mainBundle] pathForResource:@"imageInfo" ofType:@"plist"];
 _imageData=[NSMutableDictionary dictionaryWithContentsOfFile:path];
 _imageCount=(int)_imageData.count;
}

#pragma mark 添加控件
-(void)addScrollView{
 _scrollView=[[UIScrollView alloc]initWithFrame:[UIScreen mainScreen].bounds];
 [self.view addSubview:_scrollView];
 //設置代理
 _scrollView.delegate=self;
 //設置contentSize
 _scrollView.contentSize=CGSizeMake(IMAGEVIEW_COUNT*SCREEN_WIDTH, SCREEN_HEIGHT) ;
 //設置當前顯示的位置為中間圖片
 [_scrollView setContentOffset:CGPointMake(SCREEN_WIDTH, 0) animated:NO];
 //設置分頁
 _scrollView.pagingEnabled=YES;
 //去掉滾動條
 _scrollView.showsHorizontalScrollIndicator=NO;
}

#pragma mark 添加圖片三個控件
-(void)addImageViews{
 _leftImageView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT)];
 _leftImageView.contentMode=UIViewContentModeScaleAspectFit;
 [_scrollView addSubview:_leftImageView];
 _centerImageView=[[UIImageView alloc]initWithFrame:CGRectMake(SCREEN_WIDTH, 0, SCREEN_WIDTH, SCREEN_HEIGHT)];
 _centerImageView.contentMode=UIViewContentModeScaleAspectFit;
 [_scrollView addSubview:_centerImageView];
 _rightImageView=[[UIImageView alloc]initWithFrame:CGRectMake(2*SCREEN_WIDTH, 0, SCREEN_WIDTH, SCREEN_HEIGHT)];
 _rightImageView.contentMode=UIViewContentModeScaleAspectFit;
 [_scrollView addSubview:_rightImageView];

}
#pragma mark 設置默認顯示圖片
-(void)setDefaultImage{
 //加載默認圖片
 _leftImageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%i.jpg",_imageCount-1]];
 _centerImageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%i.jpg",0]];
 _rightImageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%i.jpg",1]];
 _currentImageIndex=0;
 //設置當前頁
 _pageControl.currentPage=_currentImageIndex;
 NSString *imageName=[NSString stringWithFormat:@"%i.jpg",_currentImageIndex];
 _label.text=_imageData[imageName];
}

#pragma mark 添加分頁控件
-(void)addPageControl{
 _pageControl=[[UIPageControl alloc]init];
 //注意此方法可以根據頁數(shù)返回UIPageControl合適的大小
 CGSize size= [_pageControl sizeForNumberOfPages:_imageCount];
 _pageControl.bounds=CGRectMake(0, 0, size.width, size.height);
 _pageControl.center=CGPointMake(SCREEN_WIDTH/2, SCREEN_HEIGHT-100);
 //設置顏色
 _pageControl.pageIndicatorTintColor=[UIColor colorWithRed:193/255.0 green:219/255.0 blue:249/255.0 alpha:1];
 //設置當前頁顏色
 _pageControl.currentPageIndicatorTintColor=[UIColor colorWithRed:0 green:150/255.0 blue:1 alpha:1];
 //設置總頁數(shù)
 _pageControl.numberOfPages=_imageCount;
 
 [self.view addSubview:_pageControl];
}

#pragma mark 添加信息描述控件
-(void)addLabel{
 
 _label=[[UILabel alloc]initWithFrame:CGRectMake(0, 10, SCREEN_WIDTH,30)];
 _label.textAlignment=NSTextAlignmentCenter;
 _label.textColor=[UIColor colorWithRed:0 green:150/255.0 blue:1 alpha:1];

 [self.view addSubview:_label];
}

#pragma mark 滾動停止事件
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
 //重新加載圖片
 [self reloadImage];
 //移動到中間
 [_scrollView setContentOffset:CGPointMake(SCREEN_WIDTH, 0) animated:NO];
 //設置分頁
 _pageControl.currentPage=_currentImageIndex;
 //設置描述
 NSString *imageName=[NSString stringWithFormat:@"%i.jpg",_currentImageIndex];
 _label.text=_imageData[imageName];
}

#pragma mark 重新加載圖片
-(void)reloadImage{
 int leftImageIndex,rightImageIndex;
 CGPoint offset=[_scrollView contentOffset];
 if (offset.x>SCREEN_WIDTH) { //向右滑動
  _currentImageIndex=(_currentImageIndex+1)%_imageCount;
 }else if(offset.x<SCREEN_WIDTH){ //向左滑動
  _currentImageIndex=(_currentImageIndex+_imageCount-1)%_imageCount;
 }
 //UIImageView *centerImageView=(UIImageView *)[_scrollView viewWithTag:2];
 _centerImageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%i.jpg",_currentImageIndex]];
 
 //重新設置左右圖片
 leftImageIndex=(_currentImageIndex+_imageCount-1)%_imageCount;
 rightImageIndex=(_currentImageIndex+1)%_imageCount;
 _leftImageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%i.jpg",leftImageIndex]];
 _rightImageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%i.jpg",rightImageIndex]];
}

@end