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iOS开发中常用的各种动画、页面切面效果

2020-07-26 03:22:53
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今天主要用到的动画类是CALayer下的CATransition至于各种动画类中如何继承的在这也不做赘述,网上的资料是一抓一大把。好废话少说切入今天的正题。

  一.封装动画方法

    1.用CATransition实现动画的封装方法如下,每句代码是何意思,请看注释之。

#pragma CATransition动画实现- (void) transitionWithType:(NSString *) type WithSubtype:(NSString *) subtype ForView : (UIView *) view{//创建CATransition对象CATransition *animation = [CATransition animation];//设置运动时间animation.duration = DURATION;//设置运动typeanimation.type = type;if (subtype != nil) {//设置子类animation.subtype = subtype;}//设置运动速度animation.timingFunction = UIViewAnimationOptionCurveEaseInOut;[view.layer addAnimation:animation forKey:@"animation"];} 

    代码说明:

      CATransition常用的属性如下:

        duration:设置动画时间

        type:稍后下面会详细的介绍运动类型

        subtype:和type匹配使用,指定运动的方向,下面也会详细介绍

        timingFunction :动画的运动轨迹,用于变化起点和终点之间的插值计算,形象点说它决定了动画运行的节奏,比如是

                 均匀变化(相同时间变化量相同)还是先快后慢,先慢后快还是先慢再快再慢.    

               * 动画的开始与结束的快慢,有五个预置分别为(下同):

                   * kCAMediaTimingFunctionLinear 线性,即匀速

                   * kCAMediaTimingFunctionEaseIn 先慢后快

                   * kCAMediaTimingFunctionEaseOut 先快后慢

                  * kCAMediaTimingFunctionEaseInEaseOut 先慢后快再慢

                  * kCAMediaTimingFunctionDefault 实际效果是动画中间比较快.

   2.用UIView的block回调实现动画的代码封装 

#pragma UIView实现动画- (void) animationWithView : (UIView *)view WithAnimationTransition : (UIViewAnimationTransition) transition{[UIView animateWithDuration:DURATION animations:^{[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];[UIView setAnimationTransition:transition forView:view cache:YES];}];}

    3.改变View的背景图,便于切换时观察

#pragma 给View添加背景图-(void)addBgImageWithImageName:(NSString *) imageName{self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:imageName]];} 

  二.调用上面的方法实现我们想要的动画

    1.我们在View上添加多个Button,给不同的Button设置不同的Tag值,然后再ViewController中绑定同一个方法,点击不同的button实现不同的页面切换效果。storyBoard上的控件效果如下图所示:


    2.下面我们就开始编写点击button要回调的方法

      (1).定义枚举来标示按钮所对应的动画类型,代码如下:

typedef enum : NSUInteger {Fade = , //淡入淡出Push, //推挤Reveal, //揭开MoveIn, //覆盖Cube, //立方体SuckEffect, //吮吸OglFlip, //翻转RippleEffect, //波纹PageCurl, //翻页PageUnCurl, //反翻页CameraIrisHollowOpen, //开镜头CameraIrisHollowClose, //关镜头CurlDown, //下翻页CurlUp, //上翻页FlipFromLeft, //左翻转FlipFromRight, //右翻转} AnimationType; 

    (2),获取Button的Tag值:

UIButton *button = sender;AnimationType animationType = button.tag; 

    (3).每次点击button都改变subtype的值,包括上,左,下,右

NSString *subtypeString;switch (_subtype) {case :subtypeString = kCATransitionFromLeft;break;case :subtypeString = kCATransitionFromBottom;break;case :subtypeString = kCATransitionFromRight;break;case :subtypeString = kCATransitionFromTop;break;default:break;}_subtype += ;if (_subtype > ) {_subtype = ;} 

    (4),通过switch结合上边的枚举来判断是那个按钮点击的

switch (animationType){//各种Case,此处代码下面会给出 }

   3.调用我们封装的运动方法,来实现动画效果

    (1),淡化效果

case Fade:[self transitionWithType:kCATransitionFade WithSubtype:subtypeString ForView:self.view];break; 

    (2).Push效果

case Push:[self transitionWithType:kCATransitionPush WithSubtype:subtypeString ForView:self.view];break;

     效果如下:

 

    (3).揭开效果:

case Reveal:[self transitionWithType:kCATransitionReveal WithSubtype:subtypeString ForView:self.view];break; 

    效果图如下:

  

    (4).覆盖效果

case MoveIn:[self transitionWithType:kCATransitionMoveIn WithSubtype:subtypeString ForView:self.view];break;

      效果图如下:

   (5).立方体效果

case Cube:[self transitionWithType:@"cube" WithSubtype:subtypeString ForView:self.view];break; 

    效果如下:

   

    (6).吮吸效果

case SuckEffect:[self transitionWithType:@"suckEffect" WithSubtype:subtypeString ForView:self.view];break; 

      效果如下:

    (7).翻转效果

case OglFlip:[self transitionWithType:@"oglFlip" WithSubtype:subtypeString ForView:self.view];break; 

    效果图如下:

    8.波纹效果

case RippleEffect:[self transitionWithType:@"rippleEffect" WithSubtype:subtypeString ForView:self.view];break;  

 

    (9).翻页和反翻页效果

case PageCurl:[self transitionWithType:@"pageCurl" WithSubtype:subtypeString ForView:self.view];break;case PageUnCurl:[self transitionWithType:@"pageUnCurl" WithSubtype:subtypeString ForView:self.view];break; 

  

    (10).相机打开效果

case CameraIrisHollowOpen:[self transitionWithType:@"cameraIrisHollowOpen" WithSubtype:subtypeString ForView:self.view];break;case CameraIrisHollowClose:[self transitionWithType:@"cameraIrisHollowClose" WithSubtype:subtypeString ForView:self.view];break; 

  (11),调用上面封装的第二个动画方法

case CurlDown:[self animationWithView:self.view WithAnimationTransition:UIViewAnimationTransitionCurlDown];break;case CurlUp:[self animationWithView:self.view WithAnimationTransition:UIViewAnimationTransitionCurlUp];break;case FlipFromLeft:[self animationWithView:self.view WithAnimationTransition:UIViewAnimationTransitionFlipFromLeft];break;case FlipFromRight:[self animationWithView:self.view WithAnimationTransition:UIViewAnimationTransitionFlipFromRight];break;

以上内容是针对iOS开发中常用的各种动画、页面切面效果的相关介绍,希望对大家有所帮助!

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