UIView动画UIView Animation总结

本文为CocoaChina网友嘿o大远投稿

今天总结一下UIView动画就是 UiView动画是基于高层API封装进行封装的,对UIView的属性进行修改时候所产生的动画.

基本动画

下面两种方法是最常用的两种.

+ (void)animateWithDuration:(NSTimeInterval)duration 
                 animations:(void (^)(void))animations

animations 修改View属性的Block 下面是支持修改的属性

@property frame
@property bounds
@property center
@property transform
@property alpha
@property backgroundColor
@property contentStretch
+ (void)animateWithDuration:(NSTimeInterval)duration 
                 animations:(void (^)(void))animations 
                 completion:(void (^ __nullable)(BOOL finished))completion

completion 动画完成block

BOOL finished 表示动画是否完成

继续

+ (void)animateWithDuration:(NSTimeInterval)duration
                      delay:(NSTimeInterval)delay 
                      options:(UIViewAnimationOptions)options 
                      animations:(void (^)(void))animations 
                      completion:(void (^ __nullable)(BOOL finished))completion

delay 延迟执行时间

options 动画效果枚举 ,下面是全部枚举的说明

动画效果相关

UIViewAnimationOptionLayoutSubviews            //提交动画的时候布局子控件,表示子控件将和父控件一同动画。
UIViewAnimationOptionAllowUserInteraction      //动画时允许用户交流,比如触摸
UIViewAnimationOptionBeginFromCurrentState     //从当前状态开始动画
UIViewAnimationOptionRepeat                    //动画无限重复
UIViewAnimationOptionAutoreverse               //执行动画回路,前提是设置动画无限重复
UIViewAnimationOptionOverrideInheritedDuration //忽略外层动画嵌套的执行时间
UIViewAnimationOptionOverrideInheritedCurve    //忽略外层动画嵌套的时间变化曲线
UIViewAnimationOptionAllowAnimatedContent      //通过改变属性和重绘实现动画效果,如果key没有提交动画将使用快照
UIViewAnimationOptionShowHideTransitionViews   //用显隐的方式替代添加移除图层的动画效果
UIViewAnimationOptionOverrideInheritedOptions  //忽略嵌套继承的选项

时间函数曲线相关

UIViewAnimationOptionCurveEaseInOut            //时间曲线函数,由慢到快
UIViewAnimationOptionCurveEaseIn               //时间曲线函数,由慢到特别快
UIViewAnimationOptionCurveEaseOut              //时间曲线函数,由快到慢
UIViewAnimationOptionCurveLinear               //时间曲线函数,匀速

转场动画相关的

UIViewAnimationOptionTransitionNone            //无转场动画
UIViewAnimationOptionTransitionFlipFromLeft    //转场从左翻转
UIViewAnimationOptionTransitionFlipFromRight   //转场从右翻转
UIViewAnimationOptionTransitionCurlUp          //上卷转场
UIViewAnimationOptionTransitionCurlDown        //下卷转场
UIViewAnimationOptionTransitionCrossDissolve   //转场交叉消失
UIViewAnimationOptionTransitionFlipFromTop     //转场从上翻转
UIViewAnimationOptionTransitionFlipFromBottom  //转场从下翻转

弹簧动画

+ (void)animateWithDuration:(NSTimeInterval)duration 
                      delay:(NSTimeInterval)delay 
                      usingSpringWithDamping:(CGFloat)dampingRatio 
                      initialSpringVelocity:(CGFloat)velocity 
                      options:(UIViewAnimationOptions)options
                      animations:(void (^)(void))animations 
                      completion:(void (^ __nullable)(BOOL finished))completion

dampingRatio 弹簧的阻尼 如果为1动画则平稳减速动画没有振荡。 这里值为 0~1

velocity 弹簧的速率。数值越小,动力越小,弹簧的拉伸幅度就越小。反之相反。比如:总共的动画运行距离是200 pt,你希望每秒 100pt 时,值为 0.5;

例子

[UIView animateWithDuration:2
                      delay:2
     usingSpringWithDamping:.5
      initialSpringVelocity:.5
                    options:UIViewAnimationOptionRepeat
                animations:^{
   view.center = self.view.center;
} completion:^(BOOL finished) {   
}];

UIView动画UIView Animation总结

过渡动画

+ (void)transitionWithView:(UIView *)view 
                  duration:(NSTimeInterval)duration 
                  options:(UIViewAnimationOptions)options
                  animations:(void (^ __nullable)(void))animations 
                  completion:(void (^ __nullable)(BOOL finished))completion

view 参与转换的视图

例子

UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
[self.view addSubview:view];
view.center = self.view.center;
view.backgroundColor = [UIColor redColor];
UIView *view_1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
view_1.backgroundColor = [UIColor yellowColor];
[UIView transitionWithView:view 
                  duration:3      
                  options:UIViewAnimationOptionTransitionCurlUp 
                  animations:^{
                  [view addSubview:view_1];      
} completion:^(BOOL finished) {        
}];

UIView动画UIView Animation总结

继续

+ (void)transitionFromView:(UIView *)fromView
                    toView:(UIView *)toView 
                    duration:(NSTimeInterval)duration 
                    options:(UIViewAnimationOptions)options 
                    completion:(void (^ __nullable)(BOOL finished))completion

fromView 一开始的视图

toView 转换后的视图

例子

UIView *baseView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
[self.view addSubview:baseView];
baseView.center = self.view.center;
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
[baseView addSubview:view];
view.backgroundColor = [UIColor redColor];
UIView *view_1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
view_1.backgroundColor = [UIColor yellowColor];
[UIView transitionFromView:view
                    toView:view_1 
                    duration:2 
                    options:UIViewAnimationOptionTransitionFlipFromLeft completion:^(BOOL finished) {    
}];

UIView动画UIView Animation总结

关键帧动画

+ (void)animateKeyframesWithDuration:(NSTimeInterval)duration
                              delay:(NSTimeInterval)delay 
                              options:(UIViewKeyframeAnimationOptions)options 
                              animations:(void (^)(void))animations
                               completion:(void (^ __nullable)(BOOL finished))completion
+ (void)addKeyframeWithRelativeStartTime:(double)frameStartTime 
                        relativeDuration:(double)frameDuration 
                        animations:(void (^)(void))animations

duration 总持续时间

UIViewKeyframeAnimationOptions options 枚举 下面说明

frameStartTime 相对开始时间

frameDuration 相对持续时间

例子

UIView *view = [[UIView alloc] initWithFrame:CGRectMake(20, 20, 50, 50)];
view.backgroundColor = [UIColor orangeColor];
[self.view addSubview:view];
[UIView animateKeyframesWithDuration:3 delay:3 options:UIViewKeyframeAnimationOptionRepeat animations:^{
    [UIView addKeyframeWithRelativeStartTime:0 relativeDuration:.3 animations:^{
            view.frame = CGRectMake(20, 100, 100, 100);
    }];
     [UIView addKeyframeWithRelativeStartTime:.3 relativeDuration:.6 animations:^{
            view.frame = CGRectMake(60, 100, 80, 80);
    }];
    [UIView addKeyframeWithRelativeStartTime:.6 relativeDuration:1 animations:^{
            view.frame = CGRectMake(20, 20, 50, 50);
    }];
} completion:^(BOOL finished) {
}];

UIView动画UIView Animation总结

UIViewKeyframeAnimationOptions

    UIViewKeyframeAnimationOptionLayoutSubviews        //提交动画的时候布局子控件,表示子控件将和父控件一同动画。
    UIViewKeyframeAnimationOptionAllowUserInteraction  //动画时允许用户交流,比如触摸    UIViewKeyframeAnimationOptionBeginFromCurrentState     //从当前状态开始动画
    UIViewKeyframeAnimationOptionRepeat                //动画无限重复
    UIViewKeyframeAnimationOptionAutoreverse           //执行动画回路,前提是设置动画无限重复
    UIViewKeyframeAnimationOptionOverrideInheritedDuration //忽略外层动画嵌套的执行时间
    UIViewKeyframeAnimationOptionOverrideInheritedOptions  //忽略嵌套继承的选项

关键帧动画独有

    UIViewKeyframeAnimationOptionCalculationModeLinear     //选择使用一个简单的线性插值计算的时候关键帧之间的值。
    UIViewKeyframeAnimationOptionCalculationModeDiscrete   //选择不插入关键帧之间的值,而是直接跳到每个新的关键帧的值。
    UIViewKeyframeAnimationOptionCalculationModePaced      //选择计算中间帧数值算法使用一个简单的节奏。这个选项的结果在一个均匀的动画。
    UIViewKeyframeAnimationOptionCalculationModeCubic      //选择计算中间帧使用默认卡特莫尔罗花键,通过关键帧的值。你不能调整该算法的参数。 这个动画好像会更圆滑一些..
    UIViewKeyframeAnimationOptionCalculationModeCubicPaced //选择计算中间帧使用立方计划而忽略的时间属性动画。相反,时间参数计算隐式地给动画一个恒定的速度。

剩下两个操作

+ (void)performSystemAnimation:(UISystemAnimation)animation 
                       onViews:(NSArray *)views
                       options:(UIViewAnimationOptions)options 
                       animations:(void (^ __nullable)(void))parallelAnimations completion:(void (^ __nullable)(BOOL finished))completion
+ (void)performWithoutAnimation:(void (NS_NOESCAPE ^)(void))actionsWithoutAnimation

1.删除视图上的子视图 animation这个枚举只有一个删除值…

views操作的view 这会让那个视图变模糊、收缩和褪色, 之后再给它发送 removeFromSuperview 方法。

2.在动画block中不执行动画的代码.

例子

    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(20, 20, 50, 50)];
    view.backgroundColor = [UIColor orangeColor];
    UIView *view_1 = [[UIView alloc] initWithFrame:CGRectMake(10, 10, 20, 20)];
    [view addSubview:view_1];
    view_1.backgroundColor = [UIColor redColor];
    [self.view addSubview:view];
    [UIView animateKeyframesWithDuration:3 delay:3 options:UIViewKeyframeAnimationOptionRepeat|UIViewKeyframeAnimationOptionAutoreverse animations:^{
        view.frame = CGRectMake(100, 100, 50, 50);
        [UIView performWithoutAnimation:^{
            view.backgroundColor = [UIColor blueColor];
        }];
    } completion:^(BOOL finished) {
    }];
    [UIView performSystemAnimation:UISystemAnimationDelete 
                           onViews:@[view_1] 
                           options:0 
                           animations:^{
        view_1.alpha = 0;
    } completion:^(BOOL finished) {
    }];

UIView动画UIView Animation总结

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