开始录制时清除字幕

BFRecordScreenKit/Classes/RecordScreen/Controller/BFRecordScreenController.swift

@@ -947,6 +947,9 @@ public class BFRecordScreenController: BFBaseViewController {
         isRecording = true
         progressThumV.progressView.isUserInteractionEnabled = false
         collectionView.isScrollEnabled = false
+        // 开始录制时清除屏幕上的字幕
+        subtitleLabel.text = ""
+        
         pause()
         if recorderManager == nil {
             BFLog(message: "录音机初始化错误！！！")