用diss 实现 push动画

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{

    AAAViewController * aaa = [[AAAViewController alloc]init];
    CATransition * transition = [CATransition animation];
    transition.duration = 0.3;
    transition.type = kCATransitionPush;
    transition.subtype = kCATransitionFromRight;
    [self.view.window.layer addAnimation:transition forKey:nil];
    [self presentViewController:aaa animated:NO completion:nil];

}

-(void )touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    CATransition * transition = [CATransition animation];
    transition.duration = 0.3;
    transition.type = kCATransitionPush;
    transition.subtype = kCATransitionFromLeft;
    [self.view.window.layer addAnimation:transition forKey:nil];
    [self dismissViewControllerAnimated:NO completion:nil];
}

用 presentViewController和dismissViewControllerAnimated  实现 pushViewController和popViewControllerAnimated动画