set tooltip on heighest layer

CHANGELOG.md

@@ -45,6 +45,8 @@
 
 ## branch-2.0
 
+* (2022.06.30) 优化`Radar`让`Tooltip`的层在`Indicator`之上
+
 ## v2.8.1
 
 * (2022.05.06) 发布`v2.8.1`版本

Runtime/Internal/DrawSerieRadar.cs

@@ -266,6 +266,8 @@ namespace XCharts
                     var offset = new Vector3(textStyle.offset.x, textStyle.offset.y);
                     AxisHelper.AdjustCircleLabelPos(txt, pos, radar.runtimeCenterPos, txtHig, offset);
                 }
+                if(chart.tooltip.gameObject != null)
+                    chart.tooltip.gameObject.transform.SetSiblingIndex(chart.transform.childCount-1);
                 chart.RefreshBasePainter();
             };
             radar.refreshComponent.Invoke();
@@ -482,7 +484,7 @@ namespace XCharts
                 }
                 else if (!serieNameSet.ContainsKey(dataName))
                 {
-                    serieNameCount++;
+                    serieNameCount++;
                     serieNameSet.Add(dataName, serieNameCount);
                     serieIndex = serieNameCount;
                 }