正确关闭新的ViewController页面

Question

请帮我用我的ViewControllers关闭。 即时通信开放新的视图控制器（ “SettingsPage”）与此代码：

settingClass = storyboard?.instantiateViewControllerWithIdentifier("SettingsPage") as! SettingsClass 
settingClass.modalPresentationStyle = .OverFullScreen 
settingClass.modalTransitionStyle = .CrossDissolve 
self.presentViewController(settingClass, animated: true, completion: nil) 

然后是IM需要回去（接近SettingsPage），当IM使用这种方法不适得到的MainView的双打

mainClass = storyboard?.instantiateViewControllerWithIdentifier("MainView") as! ViewController 
mainClass.modalTransitionStyle = .CrossDissolve 
self.presentViewController(mainClass, animated: true, completion: nil) 

如何要正确关闭像.OverFullScreen一样打开的新ViewController（“SettingsPage”），并返回到我的MainView？

Answer 1

尝试关闭它这样

mainClass.dismissViewControllerAnimated(true, completion: {});