重构代码，整理图例和数据来源

Assets/Demo.cs

@@ -0,0 +1,54 @@
+using UnityEngine;
+using UnityEngine.UI;
+using xcharts;
+
+public class Demo : MonoBehaviour
+{
+    public Theme theme = Theme.Dark;
+
+    private LineChart lineChart;
+    private float time;
+    private int count;
+    private Theme checkTheme = Theme.Dark;
+
+    void Awake()
+    {
+        //lineChart = transform.Find("xchart/line_chart").GetComponent<LineChart>();
+
+        var xchart = transform.Find("xchart");
+        GridLayoutGroup grid = xchart.GetComponent<GridLayoutGroup>();
+        RectTransform rect = transform.GetComponent<RectTransform>();
+        var wid = rect.sizeDelta.x;
+        int childNum = xchart.childCount;
+        float hig = grid.padding.top + childNum * (grid.cellSize.y+ grid.spacing.y);
+        rect.sizeDelta = new Vector2(wid,hig);
+        xchart.GetComponent<RectTransform>().sizeDelta = new Vector2(wid, hig);
+    }
+
+    void Update()
+    {
+        time += Time.deltaTime;
+        if (time >= 1)
+        {
+            time = 0;
+            count++;
+            //lineChart.AddXAxisCategory("key" + count);
+            //lineChart.AddData("line1", "key"+count, Random.Range(24.0f, 60.0f));
+            //lineChart.AddData("line2", "key"+count, Random.Range(24.0f, 60.0f));
+        }
+        if(checkTheme != theme)
+        {
+            checkTheme = theme;
+            UpdateTheme(theme);
+        }
+    }
+
+    void UpdateTheme(Theme theme)
+    {
+        var charts = transform.Find("xchart").GetComponentsInChildren<BaseChart>();
+        foreach(var chart in charts)
+        {
+            chart.UpdateTheme(theme);
+        }
+    }
+}