1,字幕文字删除后同时删除 sticker 数据 2，播放状态时不可编辑字幕

BFRecordScreenKit/Classes/RecordScreen/Controller/BFRecordScreenController.swift

@@ -443,6 +443,7 @@ public class BFRecordScreenController: BFBaseViewController {
 
             self?.setSubtitleStyle(settingModel: subtitileModel.setting)
         }
+        //编辑字幕完成
         subtitleEditView.editSubtitleDone = { [weak self] newtext, index in
             // 1,刷新 UI
             self?.subtitleLabel.text = newtext
@@ -451,7 +452,16 @@ public class BFRecordScreenController: BFBaseViewController {
 
             // 更新缓存数据
             if index < (self?.itemModels[self?.currItemModelIndex ?? 0].titleStickers.count ?? 0) {
-                self?.itemModels[self?.currItemModelIndex ?? 0].titleStickers[index].text = newtext
+                
+                if(newtext.count == 0){
+                    //删除数据
+                    BFLog(message: "清空字幕操作要删除原字幕 sticker 数据")
+                    self?.itemModels[self?.currItemModelIndex ?? 0].titleStickers.remove(at: index)
+                }else{
+                    //更新数据
+                    self?.itemModels[self?.currItemModelIndex ?? 0].titleStickers[index].text = newtext
+                }
+      
             }
         }
 
@@ -461,10 +471,16 @@ public class BFRecordScreenController: BFBaseViewController {
     }
 
     @objc func editSubtitle() {
+        
         BFLog(message: "编辑字幕 index:\(showSubtitleIndex)")
-        subtitleEditView.isHidden = false
-        subtitleEditView.textView.becomeFirstResponder()
-        subtitleEditView.setNewText(text: subtitleLabel.text ?? "", index: showSubtitleIndex)
+        if(!isNormalPlaying){
+            subtitleEditView.isHidden = false
+            subtitleEditView.textView.becomeFirstResponder()
+            subtitleEditView.setNewText(text: subtitleLabel.text ?? "", index: showSubtitleIndex)
+        }else{
+            BFLog(message: "播放状态不可以编辑字幕")
+        }
+ 
     }
 
     /// 更新字幕，在回放时使用