利用iOS开发实现翻转扑克牌动画的方法

前言

本文主要给大家介绍的关于利用ios开发实现翻转扑克牌动画的方法，分享出来供大家参考学习，下面话不多说，来一起看看详细的介绍吧。

动画效果

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<uitouch *> *)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 <uikit/uikit.h>

@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

github链接地址：https://github.com/jiangbin1993/pockerrotateanimation.git

本地下载地址：http://xiazai.jb51.net/201707/yuanma/pockerrotateanimation(jb51.net).rar

总结

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