Correct error

app/src/main/java/com/aachartmodel/aainfographics/AAInfographicsLib/AAChartCreator/AAOptionsConstructor.kt

@@ -48,11 +48,9 @@ object AAOptionsConstructor {
             .pinchType(aaChartModel.zoomType) //设置手势缩放方向
             .panning(true) //设置手势缩放后是否可平移
             .polar(aaChartModel.polar) //是否极化图表(开启极坐标模式)
-            .marginLeft(aaChartModel.marginLeft) //图表左边距
-            .marginRight(aaChartModel.marginRight) //图表右边距
+            .margin(aaChartModel.margin)
             .scrollablePlotArea(aaChartModel.scrollablePlotArea)
 
-
         val aaTitle = AATitle()
             .text(aaChartModel.title) //标题文本内容
             .style(aaChartModel.titleStyle)

app/src/main/java/com/aachartmodel/aainfographics/AAInfographicsLib/AAOptionsModel/AAChart.kt

@@ -86,7 +86,7 @@ class AAChart {
         return this
     }
 
-    fun margin(prop: Array<Float>): AAChart {
+    fun margin(prop: Array<Float>?): AAChart {
         margin = prop
         return this
     }