图片素材拖动指针时同时更新字幕显现数据

BFRecordScreenKit/Classes/RecordScreen/Controller/BFRecordScreenController.swift

@@ -1515,6 +1515,9 @@ public class BFRecordScreenController: BFBaseViewController {
                 self?.progreddL.text = String(format: "%@", CMTimeGetSeconds(self!.currentAssetProgress).formatDurationToHMS())
             }
             BFLog(message: "progress = \(progress),currentAssetProgress = \(currentAssetProgress.seconds),materialDuraion = \(itemModels[currItemModelIndex].materialDuraion)")
+            
+            //add by ak 图片素材拖动指针时同时更新字幕显现数据 
+            updateSubtitle(time: currentAssetProgress)
         }
     }