UIView的动画

最新推荐文章于 2021-09-03 21:13:35 发布

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最新推荐文章于 2021-09-03 21:13:35 发布

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原文链接：http://www.cnblogs.com/xiaouisme/archive/2012/02/22/2363308.html

本文介绍了两种实现iOS视图过渡动画的方法：一种是使用UIView类方法实现简单的过渡效果；另一种是利用CATransition实现更复杂的过渡效果，提供更多控制选项。

一种方法是利用封装了CATransition的UIView类方法来实现，这方法简单但效果少。

    //把子视图从父视图里删除的动画效果
    [UIView beginAnimations:@"animation_" context:nil];
    [UIView setAnimationDuration:1.25];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];

    UIViewController * coming = [[UIViewController alloc] init];
    UIViewController * going = [[UIViewController alloc] init];
    coming.view = self.view.superview;
    going.view = self.view;

    [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view.superview cache:YES];

    [coming viewWillAppear:YES];
    [going viewWillDisappear:YES];
    [going.view removeFromSuperview];
    [going viewDidDisappear:YES];
    [coming viewDidAppear:YES];

    [UIView commitAnimations];

    [coming release];
    [going release];

另一种方法是直接利用CATransition，复杂点但效果多些，可控性强，推荐.

//子视图从父视图里删除的动画效果
    CATransition * animation = [CATransition animation];
    [animation setRemovedOnCompletion:NO];
    [animation setDuration:.25];
    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]];
    [animation setType:kCATransitionPush];
    [animation setSubtype:kCATransitionFromRight];

    UIViewController * coming = [[UIViewController alloc] init];
    UIViewController * going = [[UIViewController alloc] init];
    coming.view = self.view.superview;
    going.view = self.view;

    [self.view.superview.layer addAnimation:animation forKey:@"animation_"];

    [coming viewWillAppear:YES];
    [going viewWillDisappear:YES];
    [going.view removeFromSuperview];
    [going viewDidDisappear:YES];
    [coming viewDidAppear:YES];    

    [self.view.superview.layer removeAnimationForKey:@"animation_"];

    [coming release];
    [going release];