ex. use when change player view frequently like tableView / collectionView
    import MMPlayerView
    mmPlayerLayer.playView = cell.imgView
    mmPlayerLayer.set(url: cell.data?.play_Url, state: { (status) in 
    })

let url = URL.init(string: "http://www.html5videoplayer.net/videos/toystory.mp4")!
playView.replace(cover: CoverA.instantiateFromNib())
playView.set(url: url, thumbImage: #imageLiteral(resourceName: "seven")) { (status) in
    switch status {
       case ....
    }
}

##PresentedViewController
1. Set transition config
    required init?(coder aDecoder: NSCoder) {
       super.init(coder: aDecoder)
        self.mmPlayerTransition.present.pass { (config) in
            // setting
            .....
        }
    }
2. Set MMPLayerToProtocol on PresentedViewController
3. Set MMPlayerPrsentFromProtocol on PresentingViewController

ex. only set present transition can use shrink video
(self.presentationController as? PassViewPresentatinController)?.shrinkView()

1.Set AppDelegate
func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) ->        
    UIInterfaceOrientationMask {
    if window == MMLandscapeWindow.shared {
        return .allButUpsideDown
    } else {
        return ....
    }
 }
2. Observer orientation when landscape call function
    MMLandscapeWindow.shared.makeKey(root: full, playLayer: self.mmPlayerLayer, completed: {
    })

## add cover item view on player
play.replace(cover: CoverA.instantiateFromNib())

// Custom your progress view and it will add on player center
// view need to implement ProgressProtocol, and add progress in this view, when start/stop control what need to do
.custom(view: <#T##ProgressProtocol#>)
 public protocol ProgressProtocol {
     func start()
     func stop()
 }

// detect if touch in videoRect
// if touch out of videoRect will not trigger show/hide cover view event
public protocol MMPlayerLayerProtocol: class {
 func touchInVideoRect(contain: Bool) // 
}

     public enum CoverViewFitType {
        case fitToPlayerView // coverview fit with playerview
        case fitToVideoRect // fit with VideoRect
     }
     
     public enum ProgressType {
        case `default`
        case none
        case custom(view: ProgressProtocol)
    }
            
    public var progressType: MMPlayerView.ProgressType  
    public var coverFitType: MMPlayerView.CoverViewFitType
    public var changeViewClearPlayer: Bool // rest url when change view 
    public var hideCoverDuration: TimeInterval // auto hide cover view after duration
    lazy public var thumbImageView: UIImageView 
    public var playView: UIView?
    public var coverView: UIView? { get }
    public var autoLoadUrl: Bool // when call set(url:,state) to auto fecth video
    public var autoPlay: Bool // when MMPlayerView.PlayViewPlayStatus == ready auto play video
    public var currentPlayStatus: MMPlayerView.PlayViewPlayStatus 
    public var cacheInMemory: Bool // its AVPlayerItem cache in memory
    public var asset: AVURLAsset?
    public var playUrl: URL?
    public func showCover(isShow: Bool)
    public func setCoverView(enable: Bool)
    public func delayHideCover()
    public func replace<T: UIView>(cover:T) where T: CoverViewProtocol
    public func set(url: URL?, state: ((MMPlayerView.PlayViewPlayStatus) -> Swift.Void)?)
    public func startLoading() // if autoLoadUrl = false your need call startLoading() yourself
    public weak var mmDelegate: MMPlayerLayerProtocol?

iOS 8.0+
Xcode 8.0+
Swift 3.0+