iPhone - 设计自己的viewController过渡(iPhone - designing

我的应用程序有一堆viewControllers的，我想设计从一个的viewController其他我自己的动画过渡。

我发现这

- (void)transitionFromViewController:(UIViewController *)fromViewController toViewController:(UIViewController *)toViewController duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion

但是这似乎并没有让设计自己的过渡曲线。

我要的是当新viewControllers打这样的最终位置和东西创造状弹性弹跳的效果。 我喜欢我自己的关键帧添加到动画曲线。

我怎么做？

谢谢

Answer 1:

如果你想设计自己的过渡，你可以创建一个类别的UIViewController和自己编写的动画。 只有基本的动画已经可用。

这是你如何能做到的界面：

* .h文件中：

#import <UIKit/UIKit.h>

@interface UIViewController(Transitions)

- (void) presentViewController:(UIViewController *)viewController withPushDirection: (NSString *) direction;
- (void) dismissViewControllerWithPushDirection:(NSString *) direction;

@end

* .m文件

#import "UIViewControllerWithTransitions.h"
#import <QuartzCore/QuartzCore.h>

@implementation UIViewController(Transitions)

- (void) presentViewController:(UIViewController *)viewController withPushDirection: (NSString *) direction {

    [CATransaction begin];

    CATransition *transition = [CATransition animation];
    transition.type = kCATransitionPush;
    transition.subtype = direction;
    transition.duration = 0.25f;
    transition.fillMode = kCAFillModeForwards;
    transition.removedOnCompletion = YES;

    [[UIApplication sharedApplication].keyWindow.layer addAnimation:transition forKey:@"transition"];        
    [[UIApplication sharedApplication] beginIgnoringInteractionEvents];
    [CATransaction setCompletionBlock: ^ {
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(transition.duration * NSEC_PER_SEC)), dispatch_get_main_queue(), ^ {
            [[UIApplication sharedApplication] endIgnoringInteractionEvents];        
        });
    }];

    [self presentViewController:viewController animated:NO completion:NULL];

    [CATransaction commit];

}

- (void) dismissViewControllerWithPushDirection:(NSString *) direction {

    [CATransaction begin];

    CATransition *transition = [CATransition animation];
    transition.type = kCATransitionPush;
    transition.subtype = direction;
    transition.duration = 0.25f;
    transition.fillMode = kCAFillModeForwards;
    transition.removedOnCompletion = YES;

    [[UIApplication sharedApplication].keyWindow.layer addAnimation:transition forKey:@"transition"];        
    [[UIApplication sharedApplication] beginIgnoringInteractionEvents];
    [CATransaction setCompletionBlock: ^ {
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(transition.duration * NSEC_PER_SEC)), dispatch_get_main_queue(), ^ {
            [[UIApplication sharedApplication] endIgnoringInteractionEvents];        
        });
    }];

    [self dismissViewControllerAnimated:NO completion:NULL];

    [CATransaction commit];

}

@end

这是一个示例调用：

[self presentViewController: myVC withPushDirection:@"fromRight"]; 

文章来源: iPhone - designing my own viewController transition