默认合成选项

Introduce/Record/INVideoExportController.swift

@@ -67,7 +67,6 @@ class INVideoExportController: BFBaseViewController {
         btn.setImage(UIImage(named: "export_saveonly_n"), for: .normal)
         btn.setImage(UIImage(named: "export_saveonly_h"), for: .selected)
         btn.addTarget(self, action: #selector(saveOnlyAction(btn:)), for: .touchUpInside)
-        btn.isSelected = true
         return btn
     }()
 
@@ -278,6 +277,8 @@ class INVideoExportController: BFBaseViewController {
         addSubviews()
 
 //        export.startExprot()
+        // 默认保留录音合成
+        saveOnlyBtn.isSelected = true
 
         DispatchQueue.main.asyncAfter(deadline: .now() + 0.2) { [weak self] in
             self?.exportNow()