diff --git a/modules/mogo-module-common/src/main/java/com/mogo/module/common/drawer/SnapshotSetDataDrawer.java b/modules/mogo-module-common/src/main/java/com/mogo/module/common/drawer/SnapshotSetDataDrawer.java
index 26f50e85c4..ba8ba13c89 100644
--- a/modules/mogo-module-common/src/main/java/com/mogo/module/common/drawer/SnapshotSetDataDrawer.java
+++ b/modules/mogo-module-common/src/main/java/com/mogo/module/common/drawer/SnapshotSetDataDrawer.java
@@ -179,7 +179,7 @@ public class SnapshotSetDataDrawer extends BaseDrawer implements IMogoMarkerClic
         // 需要新增的 marker 数量
         int newDiffSetSize = newDiffSet.size();
         // 能复用的数量
-        int size = cachedMarkerSize >= newDiffSetSize ? newDiffSetSize : cachedMarkerSize;
+        int size = Math.min(cachedMarkerSize, newDiffSetSize);
 
         // 复用过期 marker
         if ( newDiffSetSize > 0 ) {
@@ -197,7 +197,7 @@ public class SnapshotSetDataDrawer extends BaseDrawer implements IMogoMarkerClic
 
                 // 更新资源内容
                 if ( old == null || old.getType() != cloudRoadData.getType() ) {
-                    String resIdVal = null;
+                    String resIdVal;
                     int resId = getModelRes( cloudRoadData.getType() );
                     resIdVal = resId + "";
                     String resName = mMarkerCachesResMd5Values.get( resIdVal );
@@ -238,8 +238,8 @@ public class SnapshotSetDataDrawer extends BaseDrawer implements IMogoMarkerClic
     /**
      * 判断类型、uuid 等
      *
-     * @param cloudRoadData
-     * @return
+     * @param cloudRoadData {@link CloudRoadData}
+     * @return isUselessValue
      */
     private boolean isUselessValue( CloudRoadData cloudRoadData ) {
         if ( cloudRoadData == null ) {
@@ -250,17 +250,14 @@ public class SnapshotSetDataDrawer extends BaseDrawer implements IMogoMarkerClic
         }
 
         String uniqueKey = cloudRoadData.getUniqueKey();
-        if ( TextUtils.isEmpty( uniqueKey ) ) {
-            return true;
-        }
-        return false;
+        return TextUtils.isEmpty(uniqueKey);
     }
 
     /**
      * 绘制某个物体的一个数据
      *
-     * @param cloudRoadData
-     * @param newSnapshotCaches
+     * @param cloudRoadData {@link CloudRoadData}
+     * @param newSnapshotCaches 缓存数据
      */
     private void renderSnapshotOneFrame( IMogoMarker marker, String uniqueKey, final CloudRoadData cloudRoadData, Map< String, IMogoMarker > newSnapshotCaches ) {
 
@@ -288,9 +285,7 @@ public class SnapshotSetDataDrawer extends BaseDrawer implements IMogoMarkerClic
             long cost = System.currentTimeMillis() - start;
             final long intervalRef = interval - cost;
 
-            SimpleHandlerThreadPool.getInstance().postRender( () -> {
-                marker.addDynamicAnchorPosition( point, ( float ) cloudRoadData.getHeading(), intervalRef );
-            } );
+            SimpleHandlerThreadPool.getInstance().postRender( () -> marker.addDynamicAnchorPosition( point, ( float ) cloudRoadData.getHeading(), intervalRef ));
         } else {
             marker.setRotateAngle( ( ( float ) cloudRoadData.getHeading() ) );
             marker.setPosition( cloudRoadData.getWgslat(), cloudRoadData.getWgslon() );
@@ -373,7 +368,7 @@ public class SnapshotSetDataDrawer extends BaseDrawer implements IMogoMarkerClic
                 .gps( true )
                 .controlAngle( true )
                 .position( new MogoLatLng( data.getWgslat(), data.getWgslon() ) );
-        String resIdVal = null;
+        String resIdVal;
         if ( MogoApisHandler.getInstance().getApis().getStatusManagerApi().isVrMode() ) {
             options.set3DMode( true );
             options.anchorColor( getModelRenderColor( data.getType(), data.getSpeed(), data.getWgslon(), data.getWgslat(), data.getHeading() ) );