[V2X][Road]红色渐变逻辑优化

core/function-impl/mogo-core-function-v2x/src/main/java/com/mogo/eagle/core/function/v2x/events/scenario/scene/airoad/AiRoadMarker.kt

@@ -1,8 +1,10 @@
 package com.mogo.eagle.core.function.v2x.events.scenario.scene.airoad
 
+import android.animation.*
 import android.content.*
 import android.graphics.*
 import android.util.*
+import android.view.animation.*
 import androidx.lifecycle.*
 import androidx.lifecycle.Lifecycle.Event
 import androidx.lifecycle.Lifecycle.Event.ON_CREATE
@@ -21,6 +23,7 @@ import io.netty.util.internal.*
 import java.util.*
 import java.util.concurrent.*
 import java.util.concurrent.atomic.*
+import kotlin.collections.ArrayList
 
 /**
  * Ai云道路施工事件，道路颜色标记类
@@ -41,7 +44,8 @@ object AiRoadMarker {
 
     private val line by lazy { AtomicReference<IMogoPolyline>() }
 
-    private val colors = arrayListOf(Color.parseColor("#002ABAD9"), Color.parseColor("#FF7A30"))
+    private val START_COLOR = Color.parseColor("#002ABAD9")
+    private val END_COLOR   = Color.parseColor("#FFFF7A30")
 
     private val markers = ConcurrentSet<Marker>()
 
@@ -51,7 +55,6 @@ object AiRoadMarker {
             setGps(true)
             width(50f)
             useGradient(true)
-            colorValues(colors)
         }
     }
 
@@ -236,8 +239,16 @@ object AiRoadMarker {
             return
         }
         removeLine()
+        val evaluator = ArgbEvaluator()
+        val interceptor = DecelerateInterpolator(1.5f)
+        val total = points.size
+        val colors = ArrayList<Int>()
+        (0..total).forEach { i ->
+            colors += evaluator.evaluate(interceptor.getInterpolation(i * 1f / total), START_COLOR, END_COLOR) as Int
+        }
         var line = line.get()
         options.points(points)
+        options.colorValues(colors)
         Logger.d(TAG, "--- marker --- 7 --- points: ${points.size}")
         if (line == null || line.isDestroyed) {
             val l = overlayManager.addPolyline(options)