APPLE提供了三种storyboard segue的方式：push，modal，custom .
push segue是系统预定义的跳转方式，
为了使其能正常工作，我们还必须加载UINavigationController。
有时候，我们不想看到UINavigation bar，我们可以使用modal segue。
modal segue 的跳转方式有四种：Cover Vertical, Flip Horizontal, Cross Dissolve and Partial Curl。
要是我们想要的跳转方式与这四种方式都不同，我们可以使用自定义跳转方式custom segue。
下面是一个实现custom segue的样例：
1.创建一个UIStoryboardsegue的子类
2.重载-（void）perform 方法
1 - (void) perform
2 {
3 UIViewController *desViewController = (UIViewController *)self.destinationViewController;
4
5 UIView *srcView = [(UIViewController *)self.sourceViewController view];
6 UIView *desView = [desViewController view];
7
8 desView.transform = srcView.transform;
9 desView.bounds = srcView.bounds;
if(isLandscapeOrientation)
{
if(isDismiss)
{
desView.center = CGPointMake(srcView.center.x, srcView.center.y - srcView.frame.size.height);
}
else
{
desView.center = CGPointMake(srcView.center.x, srcView.center.y + srcView.frame.size.height);
}
}
else
{
if(isDismiss)
{
desView.center = CGPointMake(srcView.center.x - srcView.frame.size.width, srcView.center.y);
}
else
{
desView.center = CGPointMake(srcView.center.x + srcView.frame.size.width, srcView.center.y);
}
}
UIWindow *mainWindow = [[UIApplication sharedApplication].windows objectAtIndex:];
[mainWindow addSubview:desView];
// slide newView over oldView, then remove oldView
[UIView animateWithDuration:0.3
animations:^{
desView.center = CGPointMake(srcView.center.x, srcView.center.y);
if(isLandscapeOrientation)
{
if(isDismiss)
{
srcView.center = CGPointMake(srcView.center.x, srcView.center.y + srcView.frame.size.height);
}
else
{
srcView.center = CGPointMake(srcView.center.x, srcView.center.y - srcView.frame.size.height);
}
}
else
{
if(isDismiss)
{
srcView.center = CGPointMake(srcView.center.x + srcView.frame.size.width, srcView.center.y);
}
else
{
srcView.center = CGPointMake(srcView.center.x - srcView.frame.size.width, srcView.center.y);
}
}
}
completion:^(BOOL finished){
//[desView removeFromSuperview];
[self.sourceViewController presentModalViewController:desViewController animated:NO];
}];70 }
在viewcontroller中，重载prepareforsegue方法
1 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
2 {
3 HorizontalSlideSegue *s = (HorizontalSlideSegue *)segue;
4 s.isDismiss = NO;
5
6 if (UIDeviceOrientationIsLandscape([UIDevice currentDevice].orientation))
7 {
8 s.isLandscapeOrientation = YES;
9 }
else
{
s.isLandscapeOrientation = NO;
}14 }
3.选择custom segue 设置segue class为：customsegue（我们自定义的类）
4.使用代码方式调用segue：
