像硬幣一樣旋轉圖像

Question

我有一個圖像。我想旋轉就像一枚硬幣旋轉在表面上。我嘗試了旋轉變換，但它不像那樣旋轉。如何實現這樣的動畫？

代碼：

- (void)viewDidLoad { 
[super viewDidLoad]; 
[self.view setUserInteractionEnabled:YES]; 
lbl_facebook.font=[UIFont fontWithName:GZFont size:12.0f]; 
txtPassword.font=[UIFont fontWithName:GZFont size:15.0f]; 
txtUsername.font=[UIFont fontWithName:GZFont size:15.0f]; 

CATransition* transition = [CATransition animation]; 
transition.startProgress = 0; 
transition.endProgress = 1.0; 
transition.type = @"flip"; 
transition.subtype = @"fromRight"; 
transition.duration = 0.3; 
transition.repeatCount = 2; 
[_Image.layer addAnimation:transition forKey:@"transition"]; 
} 

ND：

#import "LoginViewController.h" 

#import "RegistrationViewController.h" 
#import "ForgetPasswordViewController.h" 
#import "ForgetPasswordController.h" 
#import "SearchServiceProviderViewController.h" 
#import <QuartzCore/QuartzCore.h> 

Answer 1

一個很好的伎倆旋轉這樣的是，拿硬幣的不同圖像有不同像旋轉圖像的角度。然後將所有這些圖像添加到數組，並啓動該數組的圖像動畫..它會給你更好的效果...簡單的過程，如視頻成幀。

像：

NSArray *animationArray = [NSArray arrayWithObjects: 
          [UIImage imageNamed:@"images.jpg"], 
          [UIImage imageNamed:@"images1.jpg"], 
          [UIImage imageNamed:@"images5.jpg"], 
          [UIImage imageNamed:@"index3.jpg"], 
          nil]; 
UIImageView *animationView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0,320, 460)]; 
animationView.backgroundColor  = [UIColor purpleColor]; 
animationView.animationImages  = animationArray; 
animationView.animationDuration = 1.5; 
animationView.animationRepeatCount = 0; 
[animationView startAnimating]; 

Answer 2

這將是一個不錯的，錢幣狀翻轉：

CATransition* transition = [CATransition animation]; 
transition.startProgress = 0; 
transition.endProgress = 1.0; 
transition.type = @"flip"; 
transition.subtype = @"fromRight"; 
transition.duration = 0.3; 
transition.repeatCount = 2; 

和過渡動畫添加到您的視圖層：

[_yourView.layer addAnimation:transition forKey:@"transition"]; 

看到它在行動：