修复bug

teacher/src/main/java/com/cooleshow/teacher/widgets/CourseSetCommentDialog.java

@@ -104,6 +104,7 @@ public class CourseSetCommentDialog extends Dialog implements View.OnClickListen
             if (mListener != null) {
                 mListener.onSubmit(content, showType);
             }
+            KeyboardUtils.hideSoftInput(mViewBinding.etContent);
             dismiss();
             return;
         }