添加了注释，完善了参数校验及空值处理

app/src/main/java/com/sw/inbound/sdk/SensorScaleUtils.kt

@@ -1,6 +1,7 @@
 package com.sw.inbound.sdk
 
 import com.sw.inbound.utils.ThreadUtils
+import com.sw.inbound.utils.ToastUtils
 import com.wabon.wbintelligenthardwaresdk.api.SensorScale
 import com.wabon.wbintelligenthardwaresdk.api.SensorScale.OnScaleResult
 import kotlinx.coroutines.delay
@@ -48,6 +49,10 @@ object SensorScaleUtils {
         })
     }
 
+    /**
+     * 开启称重
+     * @param autoScale 是否开启自动读取
+     */
     fun startScale(autoScale: Boolean = true, callback: Callback?) {
         if (isOpened) {
             startContinuousRead(callback = callback)
@@ -70,15 +75,21 @@ object SensorScaleUtils {
         }
     }
 
+    /**
+     * 开启自动读取重量
+     */
     fun startContinuousRead(callback: Callback?) {
         this.callback = callback
-        Timber.d("isOpened = $isOpened")
+        Timber.d("开启自动读取 = $isOpened")
         if (!isOpened) {
             return
         }
         mSensorScale?.startContinuousRead()
     }
 
+    /**
+     * 手动读取重量
+     */
     fun readWeight(callback: Callback?) {
         this.callback = callback
         Timber.d("isOpened = $isOpened")
@@ -88,6 +99,30 @@ object SensorScaleUtils {
         mSensorScale?.readWeight()
     }
 
+    /**
+     * 零位标定
+     */
+    fun zero() {
+        if (!isOpened) return
+        mSensorScale?.zero {
+            Timber.d("零位标定操作成功")
+        }
+    }
+
+    /**
+     * 去皮置零
+     */
+    fun tare() {
+        if (!isOpened) return
+        mSensorScale?.tare {
+            Timber.d("去皮置零操作成功")
+            ToastUtils.showToast("去皮置零操作成功")
+        }
+    }
+
+    /**
+     * 停止自动读取重量
+     */
     fun stopContinuousRead() {
         Timber.d("isOpened = $isOpened")
         if (!isOpened) {
@@ -96,6 +131,9 @@ object SensorScaleUtils {
         mSensorScale?.stopContinuousRead()
     }
 
+    /**
+     * 关闭称重
+     */
     fun closeScale() {
         isOpened = false
         mSensorScale?.closeScale()