Animations

一、+ (void)beginAnimations:(NSString *)animationID context:(void *)context;   开始一个动画
[UIView beginAnimations:@"go" context:nil]; 
4.0以后推荐使用+ (void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion；


二、+ (void)commitAnimations; 结束动画， 类似数据库的事务处理    
[UIVew commitAnimations]; 
                                           
三、+ (void)setAnimationDelegate:(id)delegate;         设置动画委托  
 [UIView setAnimationDelegate:self];
               
四、+ (void)setAnimationWillStartSelector:(SEL)selector;  //当动画执行开始时，执行selector方法
[UIView setAnimationWillStartSelector:@selector(demo:)];


五、+ (void)setAnimationDidStopSelector:(SEL)selector; //当动画执行结束时，执行selector方法
[UIView setAnimationWillStartSelector:@selector(demo:)]; 
         
六、+ (void)setAnimationDuration:(NSTimeInterval)duration;  //设置动画时间， 时间参数为double类型
[UIView  setAnimationDuration:10.00];

七、+ (void)setAnimationDelay:(NSTimeInterval)delay;       //设置动画延迟时间，单位秒
 [UIView setAnimationDelay:10.00];

八、+ (void)setAnimationStartDate:(NSDate *)startDate;    设置在动画块内部动画属性改变的开始时间
NSTimeInterval secondsPerDay = 24*60*60;
NSDate *tomorrow = [NSDate dateWithTimeIntervalSinceNow:secondsPerDay];
[UIView setAnimationStartDate:tomorrow];


九、+ (void)setAnimationCurve:(UIViewAnimationCurve)curve;      设置动画的旋转曲度变化
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
值定义在UIViewAnimationCurve结构体中。
typedef NS_ENUM(NSInteger, UIViewAnimationCurve) { //动画曲线
    UIViewAnimationCurveEaseInOut,         // slow at beginning and end 缓慢开始，中间加速，然后减速到结束
    UIViewAnimationCurveEaseIn,            // slow at beginning  缓慢开始，加速到结束
    UIViewAnimationCurveEaseOut,           // slow at end  加速开始，加速到结束
    UIViewAnimationCurveLinear  //正常速度
};

十、+ (void)setAnimationRepeatCount:(float)repeatCount;设置动画在动画模块中的重复次数           
[UIView setAnimationRepeatCount:3.00];


十一、+ (void)setAnimationRepeatAutoreverses:(BOOL)repeatAutoreverses;   设置动画块中的动画效果是否自动重复播放
[UIView setAnimationRepeatAutoreverses:NO];


十二、+ (void)setAnimationBeginsFromCurrentState:(BOOL)fromCurrentState;  设置动画是否从当前状态开始播放。
[UIView setAnimationBeginsFromCurrentState:NO];


十三、+ (void)setAnimationTransition:(UIViewAnimationTransition)transition forView:(UIView *)view cache:(BOOL)cache;   //在动画块设置过渡效果
[UIView setAnimationTransition: UIViewAnimationTransitionFlipFromLeft forView:insertDemoOne cache:NO]; 

transition
把一个过渡效果应用到视图中。值定义在UIViewAnimationTransition结构体中。
typedef NS_ENUM(NSInteger, UIViewAnimationTransition) {
    UIViewAnimationTransitionNone, 没有过渡
    UIViewAnimationTransitionFlipFromLeft,  翻转视图从左到右
    UIViewAnimationTransitionFlipFromRight, 翻转视图从右到左
    UIViewAnimationTransitionCurlUp, 从上卷动
    UIViewAnimationTransitionCurlDown, 从下卷动
};
view
需要过渡的视图对象。

cache
如果是YES，那么在开始和结束图片视图渲染一次并在动画中创建帧；否则，视图将会在每一帧都渲染。例如缓存，你不需要在视图转变中不停的更新，你只需要等到转换完成再去更新视图。

1、开始一个动画块。
2、在容器视图中设置转换。
3、在容器视图中移除子视图。
4、在容器视图中添加子视图。
5、结束动画块。


十四、+ (void)setAnimationsEnabled:(BOOL)enabled;   设置是否开启动画，默认YES，开启
[UIView setAnimationsEnabled:YES];

十五、+ (BOOL)areAnimationsEnabled; 验证动画是否开启，YES:开启 NO：关闭
BOOL demoBool;
demoBool = [UIView areAnimationsEnabled];

 

+ (void)animateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion NS_AVAILABLE_IOS(4_0); 动画效果处理块，多参数
(NSTimeInterval)duration 
动画时间

(NSTimeInterval)delay
延迟时间
(UIViewAnimationOptions)options 动画参数
typedef NS_OPTIONS(NSUInteger, UIViewAnimationOptions) {
    UIViewAnimationOptionLayoutSubviews            = 1 <<  0,
    UIViewAnimationOptionAllowUserInteraction      = 1 <<  1, // turn on user interaction while animating
    UIViewAnimationOptionBeginFromCurrentState     = 1 <<  2, // start all views from current value, not initial value
    UIViewAnimationOptionRepeat                    = 1 <<  3, // repeat animation indefinitely
    UIViewAnimationOptionAutoreverse               = 1 <<  4, // if repeat, run animation back and forth
    UIViewAnimationOptionOverrideInheritedDuration = 1 <<  5, // ignore nested duration
    UIViewAnimationOptionOverrideInheritedCurve    = 1 <<  6, // ignore nested curve
    UIViewAnimationOptionAllowAnimatedContent      = 1 <<  7, // animate contents (applies to transitions only)
    UIViewAnimationOptionShowHideTransitionViews   = 1 <<  8, // flip to/from hidden state instead of adding/removing

    UIViewAnimationOptionCurveEaseInOut            = 0 << 16, // default
    UIViewAnimationOptionCurveEaseIn               = 1 << 16,
    UIViewAnimationOptionCurveEaseOut              = 2 << 16,
    UIViewAnimationOptionCurveLinear               = 3 << 16,

    UIViewAnimationOptionTransitionNone            = 0 << 20, // default
    UIViewAnimationOptionTransitionFlipFromLeft    = 1 << 20,
    UIViewAnimationOptionTransitionFlipFromRight   = 2 << 20,
    UIViewAnimationOptionTransitionCurlUp          = 3 << 20,
    UIViewAnimationOptionTransitionCurlDown        = 4 << 20,
    UIViewAnimationOptionTransitionCrossDissolve   = 5 << 20,
    UIViewAnimationOptionTransitionFlipFromTop     = 6 << 20,
    UIViewAnimationOptionTransitionFlipFromBottom  = 7 << 20,
} NS_ENUM_AVAILABLE_IOS(4_0);


(void))animations 
动画效果块
可以设置属性如下：
frame
bounds
center
transform
alpha
backgroundColor
contentStretch


completion:(void (^)(BOOL finished))completion
动画结束块

[UIView animateWithDuration: 2.00 delay:3.00 options:UIViewAnimationOptionAllowAnimatedContent
                     animations:^{
                             insertDemoTwo.alpha = 0.1;
                             insertDemoOne.alpha = 1.0;
                                            }
                     completion:^(BOOL finished) {
                         [UIView animateWithDuration:3.00
                                          animations:^{
                                              insertDemoTwo.center = CGPointMake(500.0, 470.0);
                                              insertDemoOne.center = CGPointMake(140.0, 100.0);
                                          }
                          ];


                     }

     ];

+ (void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion NS_AVAILABLE_IOS(4_0); // delay = 0.0, options = 0   动画效果处理块（无延迟，无参数）
[UIView animateWithDuration:3.00
                     animations:^{
                         insertDemoOne.alpha = 1.0;
                         insertDemoTwo.alpha = 0.1;
                     }
                     completion:^(BOOL finished) {
                         insertDemoTwo.center = CGPointMake(500.0, 470.0);
                         insertDemoOne.center = CGPointMake(140.0, 100.0);                    
 }
     ];

+ (void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations NS_AVAILABLE_IOS(4_0); // delay = 0.0, options = 0, completion = NULL 动画效果处理块（简单版）
[UIView animateWithDuration:5.00 animations:^{
        insertDemoTwo.alpha = 0.1;
        insertDemoOne.alpha = 1.0;
    }];


+ (void)transitionWithView:(UIView *)view duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion NS_AVAILABLE_IOS(4_0); 过渡动画效果块

 [UIView transitionWithView:insertDemoOne duration: 1.0 options:UIViewAnimationOptionTransitionFlipFromLeft
                                         animations:^{
                                             [insertDemoTwo removeFromSuperview];
                                             [insertDemoOne addSubview:insertDemoTwo];
                                         }
                                         completion:^(BOOL finished) {
                                             insertDemoOne.backgroundColor = [UIColor brownColor];
                                         }];

+ (void)transitionFromView:(UIView *)fromView toView:(UIView *)toView duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options completion:(void (^)(BOOL finished))completion NS_AVAILABLE_IOS(4_0); // toView added to fromView.superview, fromView removed from its superview 视图之间切换的过渡动画效果块