iOS9 ReplayKit录制视频

//
//  ReplayKitProxy.swift
//  ReplayKitDemo
//
//  Created by LiuYanghui on 15/12/11.
//  Copyright © 2015年 LiuYanghui. All rights reserved.
//

import UIKit
import ReplayKit

class ReplayKitProxy: NSObject, RPPreviewViewControllerDelegate {

private var rootViewController: UIViewController?
private var previewViewController: RPPreviewViewController?

class var sharedInstance : ReplayKitProxy {
struct Static {
static var onceToken : dispatch_once_t = 0
static var instance : ReplayKitProxy? = nil
}
dispatch_once(&Static.onceToken) {
Static.instance = ReplayKitProxy()
Static.instance?.initData()
}
return Static.instance!
}

private func initData() {

}

/// 开始录制视频
func startRecording() {
let recorder = RPScreenRecorder.sharedRecorder()

if recorder.available == false {
print("Replaykit is not available")
return
}

if recorder.recording == true {
print("Replaykit is recording")
return
}

recorder.startRecordingWithMicrophoneEnabled(true) { (error) -> Void in
if error != nil {
print(error?.localizedDescription)
}
}
}

/// 停止录制视频
func stopRecording() {
let recorder = RPScreenRecorder.sharedRecorder()
if recorder.recording == false {
return
}

recorder.stopRecordingWithHandler { (previewViewController, error) -> Void in
if error != nil {
print(error?.localizedDescription)
}else if let viewController = previewViewController{
viewController.previewControllerDelegate = self
self.previewViewController = viewController
}
}
}

/// 删除已录制视频，必须在stopRecording之后调用
func discardRecording() {
let recorder = RPScreenRecorder.sharedRecorder()
if recorder.recording == true {
return
}

recorder.discardRecordingWithHandler { () -> Void in
print("discardRecording complete")
}
}

/// 显示视频
func displayRecordingContent() {
// ipad需要修改显示方式，否则可能会导致sorceView为nil的异常
if UIDevice.currentDevice().userInterfaceIdiom == UIUserInterfaceIdiom.Pad {
self.previewViewController?.modalPresentationStyle = UIModalPresentationStyle.CurrentContext
self.previewViewController?.popoverPresentationController?.sourceView = self.rootViewController?.view
}
rootViewController?.presentViewController(self.previewViewController!, animated: true, completion: { () -> Void in
print("display complete")
})
}

// MARK: - delegate
func previewControllerDidFinish(previewController: RPPreviewViewController) {
previewController.dismissViewControllerAnimated(true) { () -> Void in

}
}
}