fix(shelf): 实现负漂移抑制以提高重量显示准确性

- 在ShelfV3Activity中针对-5克以内的负读数做归零处理，避免误导显示
- 修改获取重量逻辑，保证显示重量与真实重量区分
- 在ShelfV3Adapter中对空秤零点附近的小负重量做归零处理
- 优化重量单位显示逻辑，根据负漂移抑制后的值显示克或千克
- 更新local.properties中SDK路径配置

app/src/main/java/com/sw/scalefusion/shelf/ShelfV3Activity.kt

@@ -155,8 +155,10 @@ class ShelfV3Activity : BaseActivity() {
         binding.tvVegTypeName.text = model.vegTypeName
         val weightG = model.weight ?: 0.0
         realWeight = (weightG * 1000.0).toInt()
+        // 负漂移抑制：-5克以内的负读数显示时归零（realWeight 保持真实值）
+        val displayWeight = if (realWeight in -5..0) 0 else realWeight
         binding.tvFoodWeight.text = if (weightG >= 1.0) "%.3f千克".format(weightG)
-        else "${realWeight}克"
+        else "${displayWeight}克"
         startTime = System.currentTimeMillis()
     }
 
@@ -354,8 +356,10 @@ class ShelfV3Activity : BaseActivity() {
         val intervalTime = System.currentTimeMillis() - startTime
         val weight = event.weight
         log("格口${shelfModel?.slotNo}获取重量：${weight}克，间隔：${intervalTime}ms")
-        binding.tvFoodWeight.text = if (weight < 1000) "${weight}克"
-        else "%.3f千克".format(weight / 1000.0)
+        // 负漂移抑制：-5克以内的负读数显示时归零
+        val displayWeight = if (weight in -5..0) 0 else weight
+        binding.tvFoodWeight.text = if (displayWeight < 1000) "${displayWeight}克"
+        else "%.3f千克".format(displayWeight / 1000.0)
         startTime = System.currentTimeMillis()
         window.decorView.postDelayed({ Loading.dismiss() }, 1000)
     }

app/src/main/java/com/sw/scalefusion/shelf/adapter/ShelfV3Adapter.kt

@@ -43,10 +43,12 @@ class ShelfV3Adapter(list: MutableList<SlotModel>) :
         binding.tvShelfName.text = item.slotNo.padStart(2, '0')
 
         val weightG = item.weight ?: 0.0
+        // 负漂移抑制：空秤零点可能出现 -5克以内的负读数，显示时归零
+        val displayG = if (weightG in -0.005..0.0) 0.0 else weightG
         binding.tvFoodWeight.run {
             setTextColor(getColor(R.color.food_weight_orange))
-            text = if (abs(weightG) >= 1.0) "%.3f千克".format(weightG)
-            else "${(weightG * 1000.0).toInt()}克"
+            text = if (abs(displayG) >= 1.0) "%.3f千克".format(displayG)
+            else "${(displayG * 1000.0).toInt()}克"
         }
 
         val isBlank = item.materName.isNullOrBlank()

local.properties

@@ -4,5 +4,5 @@
 # Location of the SDK. This is only used by Gradle.
 # For customization when using a Version Control System, please read the
 # header note.
-#Fri Jun 26 09:17:18 CST 2026
-sdk.dir=D\:\\Android\\sdk
+#Thu Jul 02 16:04:28 CST 2026
+sdk.dir=C\:\\Users\\MZF\\AppData\\Local\\Android\\Sdk