优化

app/src/main/java/com/sw/dualscreen/Test.kt

@@ -0,0 +1,42 @@
+package com.sw.dualscreen
+
+class Test {
+
+    private var lastWeight = 0
+//    private var currentWeight = 0
+
+    data class WeightRecord(
+        var eatWeight: Int = 0,
+        var deviceWeight: Int = 0,
+        var lastWeight: Int = 0,
+        var state: Boolean = false
+    )
+
+    private val weightRecord by lazy { WeightRecord() }
+
+    fun main() {
+        readWeight { weight ->
+            if (weightRecord.state) {
+                //数据已记录
+                return@readWeight
+            }
+            if (weight == 0 || lastWeight == 0) {
+                return@readWeight
+            }
+            if (weight < lastWeight) {
+                weightRecord.let {
+                    it.deviceWeight = weight
+                    it.eatWeight = it.deviceWeight - it.lastWeight
+                    it.state = true
+                }
+            }
+            lastWeight = weight
+        }
+    }
+
+    fun readWeight(block: (Int) -> Unit) {
+
+    }
+
+
+}