Before this, you used ZFPlayer, are you worried about encapsulating avplayer instead of using or modifying the source code to support other players, the control layer is not easy to customize, and so on? In order to solve these problems, I have wrote this player template, for player SDK you can conform the `ZFPlayerMediaPlayback` protocol, for control view you can conform the `ZFPlayerMediaControl` protocol, can custom the player and control view.
For the playerMnager,you must conform `ZFPlayerMediaPlayback` protocol,custom playermanager can supports any player SDK，such as `AVPlayer`,`MPMoviePlayerController`,`ijkplayer`,`vlc`,`PLPlayerKit`,`KSYMediaPlayer`and so on，you can reference the `ZFAVPlayerManager`class.
```objc
Class<ZFPlayerMediaPlayback>*playerManager=...;
```
#### ZFPlayerMediaControl
This class is used to display the control layer, and you must conform the ZFPlayerMediaControl protocol, you can reference the `ZFPlayerControlView` class.
/// The scroll direction of scrollView while scrolling.
/// When the ZFPlayerScrollViewDirection is ZFPlayerScrollViewDirectionVertical，this value can only be ZFPlayerScrollDirectionUp or ZFPlayerScrollDirectionDown.
/// When the ZFPlayerScrollViewDirection is ZFPlayerScrollViewDirectionHorizontal，this value can only be ZFPlayerScrollDirectionLeft or ZFPlayerScrollDirectionRight.
// The default screen direction (the current ViewController must be represented by a modal UIViewController (which is not valid with modal navigation) to call this method).
// The default screen direction (the current ViewController must be represented by a modal UIViewController (which is not valid with modal navigation) to call this method).
ZFPlayerDisablePanMovingDirectionNone=0,/// Not disable pan moving direction.
ZFPlayerDisablePanMovingDirectionVertical=1<<0,/// Disable pan moving vertical direction.
ZFPlayerDisablePanMovingDirectionHorizontal=1<<1,/// Disable pan moving horizontal direction.
ZFPlayerDisablePanMovingDirectionAll=(ZFPlayerDisablePanMovingDirectionVertical|ZFPlayerDisablePanMovingDirectionHorizontal)/// Disable pan moving all direction.
@abstract Check whether video preparation is complete.
@discussion isPreparedToPlay processing logic
* If isPreparedToPlay is true, you can call [ZFPlayerMediaPlayback play] API start playing;
* If isPreparedToPlay to false, direct call [ZFPlayerMediaPlayback play], in the play the internal automatic call [ZFPlayerMediaPlayback prepareToPlay] API.
`ZFReachabilityManager` monitors the reachability of domains, and addresses for both WWAN and WiFi network interfaces.
Reachability can be used to determine background information about why a network operation failed, or to trigger a network operation retrying when a connection is established. It should not be used to prevent a user from initiating a network request, as it's possible that an initial request may be required to establish reachability.
See Apple's Reachability Sample Code ( https://developer.apple.com/library/ios/samplecode/reachability/ )
@warning Instances of `AFNetworkReachabilityManager` must be started with `-startMonitoring` before reachability status can be determined.
Sets a callback to be executed when the network availability of the `baseURL` host changes.
@param block A block object to be executed when the network availability of the `baseURL` host changes.. This block has no return value and takes a single argument which represents the various reachability states from the device to the `baseURL`.
