增加Tooltip的alwayShow参数设置触发后一直显示

Runtime/Component/Main/Tooltip.cs

@@ -63,6 +63,7 @@ namespace XCharts
         [SerializeField] private float m_PaddingLeftRight = 5f;
         [SerializeField] private float m_PaddingTopBottom = 5f;
         [SerializeField] private string m_IgnoreDataDefaultContent = "-";
+        [SerializeField] private bool m_AlwayShow = true;
         [SerializeField] private Sprite m_BackgroundImage;
         [SerializeField] private TextStyle m_TextStyle = new TextStyle(18, FontStyle.Normal);
         [SerializeField] private LineStyle m_LineStyle = new LineStyle(LineStyle.Type.Solid, 0.7f);
@@ -170,6 +171,10 @@ namespace XCharts
         /// </summary>
         public Sprite backgroundImage { get { return m_BackgroundImage; } set { m_BackgroundImage = value; SetBackground(m_BackgroundImage); } }
         /// <summary>
+        /// 是否触发后一直显示。
+        /// </summary>
+        public bool alwayShow { get { return m_AlwayShow; } set { m_AlwayShow = value; } }
+        /// <summary>
         /// 提示框内容文本样式。
         /// </summary>
         public TextStyle textStyle
@@ -383,6 +388,7 @@ namespace XCharts
         /// <param name="flag"></param>
         public void SetActive(bool flag)
         {
+            if(!flag && m_AlwayShow) return;
             lastDataIndex[0] = lastDataIndex[1] = -1;
             if (m_GameObject && m_GameObject.activeInHierarchy != flag)
                 m_GameObject.SetActive(flag);