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];//upButtonUIButton *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];//downButtonUIButton *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
