（抄）页面转场动画
http://www.devqinwei.com/2015/10/27/页面转场动画/
1.模糊放大fade away 效果
代码：
+(void)changeRootViewControllerWithStyleBlur:(UIViewController *)viewController inMainWindow:(UIWindow *)mainWindow{
if (!mainWindow.rootViewController) {
mainWindow.rootViewController = viewController;
return;
}
UIView *snapShot = [mainWindow snapshotViewAfterScreenUpdates:YES];
[viewController.view addSubview:snapShot];
mainWindow.rootViewController = viewController;
[UIView animateWithDuration:0.5 animations:^{
snapShot.layer.opacity = 0;
snapShot.layer.transform = CATransform3DMakeScale(1.5, 1.5, 1.5);
} completion:^(BOOL finished) {
[snapShot removeFromSuperview];
}];
}
2. 水平翻转效果
代码：
+ (void)changeRootViewControllerWithStyleFlip:(UIViewController*)viewController inMainWindow:(UIWindow *)mainWindow{
if (!mainWindow.rootViewController) {
mainWindow.rootViewController = viewController;
return;
}
[UIView transitionWithView:mainWindow
duration:0.5f
options:UIViewAnimationOptionTransitionFlipFromLeft
animations:^{ mainWindow.rootViewController = viewController; }
completion:nil];
}
3. 仿twitter logo放大退隐动画
效果：
注：这个是写在navigationController上的，如果window的rootViewController是tabbarController，则需要做调整。(参考Kitten Yang的《A guide to iOS animation》)
代码：
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// 设置navigationController 的 mask动画
self.navigationController.view.layer.mask = [CALayer layer];
self.navigationController.view.layer.mask.contents = (id)[UIImage imageNamed:@"star"].CGImage;
self.navigationController.view.layer.mask.position = self.view.center;
self.navigationController.view.layer.mask.bounds = CGRectMake(0.0f, 0.0f, 300.0f, 300.0f);
CAKeyframeAnimation *keyFrameAnimation = [CAKeyframeAnimation animationWithKeyPath:@"bounds"];
keyFrameAnimation.delegate = self;
keyFrameAnimation.duration = 1.0f;
keyFrameAnimation.beginTime = CACurrentMediaTime() + 1.0f;
NSValue *initialBounds = [NSValue valueWithCGRect: self.navigationController.view.layer.mask.bounds];
NSValue *secondBounds = [NSValue valueWithCGRect:CGRectMake(0.0f, 0.0f, self.navigationController.view.layer.mask.bounds.size.width - 40.0f , self.navigationController.view.layer.mask.bounds.size.height - 40.0f)];
NSValue *finalBounds = [NSValue valueWithCGRect:CGRectMake(0.0f, 0.0f, 2000.0f, 2000.0f)];
keyFrameAnimation.values = @[initialBounds,secondBounds,finalBounds];
keyFrameAnimation.keyTimes = @[@0, @0.5, @1];
keyFrameAnimation.timingFunctions = @[[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut],[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut] ];
keyFrameAnimation.removedOnCompletion = NO;
keyFrameAnimation.fillMode = kCAFillModeForwards;
[self.navigationController.view.layer.mask addAnimation:keyFrameAnimation forKey:@"maskAnimation"];
// 设置一个在navigationController的layer和mask之间的白色隔层(注意，view如果添加subView，那么这个subView是在mask与view之间)
__block UIView *whiteView = [[UIView alloc] initWithFrame:self.navigationController.view.frame];
whiteView.backgroundColor = [UIColor whiteColor];
[self.navigationController.view addSubview:whiteView];
[self.navigationController.view bringSubviewToFront:whiteView];
// 设置navigationController的动画
[UIView animateWithDuration:0.25 delay:1.3 options:0 animations:^{
self.navigationController.view.transform = CGAffineTransformMakeScale(1.05, 1.05);
whiteView.alpha = 0.8f;
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
self.navigationController.view.transform = CGAffineTransformIdentity;
whiteView.alpha = 0.0f;
} completion:nil];
}];
}
