IOS图像5之UIView动画、自定义转场动画、delegate

UIView淡入淡出动画、3D旋转动画

淡入淡出动画

UIView *view01 = [[UIView
alloc]initWithFrame:CGRectMake(20,
20, 100,
50)];

view01.backgroundColor = [UIColor
redColor];

[self.view
addSubview:view01];

view01.alpha =
1.0;

[UIView beginAnimations:nil
context:nil];

[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];

[UIView setAnimationDuration:3.0];

[UIView setAnimationRepeatCount:3];

[UIView setAnimationDelegate:self];

view01.alpha =
0.0;

[UIView commitAnimations];

3D旋转Block动画：

UIView *view01 = [[UIView
alloc]initWithFrame:CGRectMake(20,
20, 100,
50)];

[UIView animateWithDuration:2
animations:^{

view01.backgroundColor = [UIColor
cyanColor];

view01.alpha =
1.0;

[self.view
addSubview:view01];

[UIView
setAnimationDuration:2.0];

[UIView
setAnimationRepeatCount:1.0];

[UIView
setAnimationCurve:UIViewAnimationCurveEaseInOut];

view01.transform =
CGAffineTransformMakeRotation(3.14);

} completion:^(BOOL finish){

if (finish) {

NSLog(@"animationstop");

}

这里设置动画结束之后还有一些代理方法，例如stop动画结束的完成回调方法，start动画开始回调方法等等。
自定义转场动画：

从IOS7之后可以定义自定义转场动画：



-(void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext{

UIViewController * viewfrom = [transitionContext
viewControllerForKey:UITransitionContextFromViewControllerKey];

UIViewController * viewto = [transitionContext
viewControllerForKey:UITransitionContextToViewControllerKey];

UIView *mtransitionContext = [transitionContext
containerView];

[mtransitionContext
addSubview:viewfrom.view];
[mtransitionContext
addSubview:viewto.view];
viewto.view.frame =
CGRectMake(100,
0, 320,
568);

[UIView
animateWithDuration:5.0
delay:0
options:UIViewAnimationOptionCurveEaseIn
animations:^(){
viewto.view.frame =
CGRectMake(0,
0, 320,
568);
}
completion:^(BOOL finished){
[transitionContext
completeTransition:YES];
}];

}
剩下的我们只需要实现navigation的代理协议就可以了：

-(id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController
*)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController *)fromVC toViewController:(UIViewController
*)toVC{

id anim = nil;
anim =
mslid;

return anim;
}