如何使用iOS开发实现翻转扑克牌动画-创新互联
这篇文章主要介绍了如何使用iOS开发实现翻转扑克牌动画,具有一定借鉴价值,感兴趣的朋友可以参考下,希望大家阅读完这篇文章之后大有收获,下面让小编带着大家一起了解一下。
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实现原理
实现原理就是创建三个扑克牌pockerView , 先在扑克牌上添加一个imageview,作为牌的背面。然后实现翻转动画,在翻转的时候将imageview移除,添加另一个imageview作为正面。
核心代码:
方法一: 翻转动画,内部实现还是方法二
+ (void)transitionWithView:(UIView *)view duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options animations:(void (^ __nullable)(void))animations completion:(void (^ __nullable)(BOOL finished))completion NS_AVAILABLE_IOS(4_0);
方法二 :UIView动画
[UIView beginAnimations:@"aa" context:nil]; [UIView setAnimationDuration:_duration]; [UIView setAnimationCurve:UIViewAnimationCurveLinear]; [view.imgview1 removeFromSuperview]; [view addSubview:view.imgview2]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:view cache:NO]; [UIView commitAnimations];
完整代码:
ViewController.m文件代码
#import "ViewController.h" #import "PockerView.h" @interface ViewController () // 记录翻第几张牌 @property(nonatomic,assign)NSInteger index; // 动画时间 @property(nonatomic,assign)CGFloat duration; @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; self.view.backgroundColor = [UIColor blackColor]; _duration = 0.5; _index = 0; NSArray *arr = @[@"2.jpg",@"3.jpg",@"4.jpg"]; // 循环创建3张扑克牌 for (int i = 0; i < 3; i++) { PockerView *pocker = [[PockerView alloc]initWithFrame:CGRectMake(100 + 80 * i, 100, 100, 150) imageName:arr[i]]; pocker.tag = 1000 + i; [self.view addSubview:pocker]; } } // 点击空白处触发 - (void)touchesBegan:(NSSet*)touches withEvent:(UIEvent *)event{ // 执行动画 [self executeAnimation]; } // 执行动画 - (void)executeAnimation{ // 根据tag值取到扑克牌 PockerView *pocker = [self.view viewWithTag:1000+ _index]; // 方法一 [self animationWithView:pocker]; // 方法二 // [self rotateWithView:pocker]; } // 翻牌动画方法一(内部实现还是方法二) - (void)animationWithView:(PockerView *)view{ // 延时方法 正在翻转的牌翻转一半的时候把它移到视图最上面来 [self performSelector:@selector(delayAction:) withObject:view afterDelay:_duration / 2]; // 翻转动画 UIViewAnimationOptions option = UIViewAnimationOptionTransitionFlipFromLeft; [UIView transitionWithView:view duration:_duration options:option animations:^ { [view.imgview1 removeFromSuperview]; [view addSubview:view.imgview2]; } completion:^(BOOL finished){ _index++; if (_index < 3) { [self executeAnimation]; } }]; } // 延时方法 - (void)delayAction:(UIView *)view{ [self.view bringSubviewToFront:view]; } - (void)delayAction2{ _index++; if (_index < 3) { [self executeAnimation]; } } // 方法二 - (void)rotateWithView:(PockerView *)view{ [self performSelector:@selector(delayAction:) withObject:view afterDelay:_duration / 2]; [self performSelector:@selector(delayAction2) withObject:nil afterDelay:_duration]; [UIView beginAnimations:@"aa" context:nil]; [UIView setAnimationDuration:_duration]; [UIView setAnimationCurve:UIViewAnimationCurveLinear]; [view.imgview1 removeFromSuperview]; [view addSubview:view.imgview2]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:view cache:NO]; [UIView commitAnimations]; } @end
PockerView.h文件代码
// // PockerView.h // 翻牌 // // Created by 斌 on 2017/4/20. // Copyright © 2017年 斌. All rights reserved. // #import@interface PockerView : UIView @property(nonatomic,strong)UIImageView *imgview1; @property(nonatomic,strong)UIImageView *imgview2; - (instancetype)initWithFrame:(CGRect)frame imageName:(NSString *)imageName; @end
PockerView.m文件代码
// // PockerView.m // 翻牌 // // Created by 斌 on 2017/4/20. // Copyright © 2017年 斌. All rights reserved. // #import "PockerView.h" @implementation PockerView - (instancetype)initWithFrame:(CGRect)frame imageName:(NSString *)imageName{ self = [super initWithFrame:frame]; if (self) { // 设置阴影 self.layer.shadowColor = [UIColor blackColor].CGColor; self.layer.shadowOffset = CGSizeMake(-10, 0); self.layer.shadowOpacity = 0.3; // 牌的背面 self.imgview1 = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)]; _imgview1.backgroundColor = [UIColor redColor]; _imgview1.image = [UIImage imageNamed:@"1.jpeg"]; [self addSubview:_imgview1]; self.imgview1.layer.cornerRadius = 10; self.imgview1.clipsToBounds = YES; self.imgview1.layer.borderWidth = 5; self.imgview1.layer.borderColor = [[UIColor whiteColor] CGColor]; // 牌的正面 self.imgview2 = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)]; _imgview2.backgroundColor = [UIColor redColor]; _imgview2.image = [UIImage imageNamed:imageName]; self.imgview2.layer.cornerRadius = 10; self.imgview2.clipsToBounds = YES; self.imgview2.layer.borderWidth = 5; self.imgview2.layer.borderColor = [[UIColor whiteColor] CGColor]; } return self; } @end
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