代码：
RootViewController.m
#import "RootViewController.h"@interface RootViewController ()@end@implementation RootViewController- (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. //初始化背景图 [self initBackgroundView];}#pragma -mark -functions-(void)initBackgroundView{ self.title=@"翻书效果的实现"; self.view.backgroundColor=[UIColor redColor]; //upButton UIButton *upButton = [UIButton buttonWithType:UIButtonTypeCustom]; upButton.frame = CGRectMake(20, 420, 50, 26); upButton.backgroundColor=[UIColor blueColor]; [upButton setTitle:@"up" forState:UIControlStateNormal]; [upButton addTarget:self action:@selector(doClickUpButton) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:upButton]; //downButton UIButton *downButton = [UIButton buttonWithType:UIButtonTypeCustom]; downButton.frame = CGRectMake(250, 420, 50, 26); downButton.backgroundColor=[UIColor blueColor]; [downButton setTitle:@"down" forState:UIControlStateNormal]; [downButton addTarget:self action:@selector(doClickDownButton) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:downButton];}#pragma -mark -doClickAction-(void)doClickUpButton{ [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.7]; [UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view cache:YES]; [UIView commitAnimations];}-(void)doClickDownButton{ [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.7]; [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES]; [UIView commitAnimations];}- (void)didReceiveMemoryWarning{ [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}@end