diff --git a/app/src/main/java/com/sw/platecabinet/activity/LoginByFaceActivity.kt b/app/src/main/java/com/sw/platecabinet/activity/LoginByFaceActivity.kt
index 436c8be..be286b2 100644
--- a/app/src/main/java/com/sw/platecabinet/activity/LoginByFaceActivity.kt
+++ b/app/src/main/java/com/sw/platecabinet/activity/LoginByFaceActivity.kt
@@ -642,7 +642,7 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
      * @param height 图像高度（如 1080）
      * @return 合法的全黑帧字节数组
      */
-    fun createBlackNV21Frame(width: Int, height: Int): ByteArray {
+    private fun createBlackNV21Frame(width: Int, height: Int): ByteArray {
         val frameSize = width * height
         val nv21Data = ByteArray(frameSize * 3 / 2) // NV21 格式长度 = 宽×高×1.5
 
@@ -658,7 +658,7 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
     }
 
     // 调用示例：构造 1920×1080 的全黑帧（长度 1382400）
-    val emptyFrame = createBlackNV21Frame(1920, 1080)
+    private val emptyFrame = createBlackNV21Frame(1920, 1080)
     // 传递“空帧” recognizeViewModel.onPreviewFrame(emptyFrame, true)
 
 //    /**
@@ -806,7 +806,7 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
                     }
                 }
                 uploadFaceDebouncer.reset()
-            }.start()
+            }
         }
     }