fix Pie lengendData can not update. fixed: #819

src/components/Charts/Pie/index.js

@@ -26,8 +26,17 @@ export default class Pie extends Component {
 
   componentWillReceiveProps(nextProps) {
     if (this.props.data !== nextProps.data) {
+      // because of charts data create when rendered
+      // so there is a trick for get rendered time
+      this.setState(
+        {
+          legendData: [...this.state.legendData],
+        },
+        () => {
           this.getLengendData();
         }
+      );
+    }
   }
 
   componentWillUnmount() {