diff --git a/Source/Scripts/Editor/EditorToolSet.cs b/Source/Scripts/Editor/EditorToolSet.cs
index acab1dc0..a285225c 100644
--- a/Source/Scripts/Editor/EditorToolSet.cs
+++ b/Source/Scripts/Editor/EditorToolSet.cs
@@ -42,7 +42,7 @@ static void CreatePanel()
 				int layer = LayerMask.NameToLayer(StageCamera.LayerName);
 				panelObject.layer = layer;
 			}
-			panelObject.AddComponent<UIPanel>();
+			panelObject.AddComponent<FairyGUI.UIPanel>();
 			Selection.objects = new Object[] { panelObject };
 		}
 
diff --git a/Source/Scripts/Editor/PackagesWindow.cs b/Source/Scripts/Editor/PackagesWindow.cs
index b9356d96..7b5ba180 100644
--- a/Source/Scripts/Editor/PackagesWindow.cs
+++ b/Source/Scripts/Editor/PackagesWindow.cs
@@ -7,7 +7,6 @@
 using UnityEditor.SceneManagement;
 #endif
 using FairyGUI;
-using FairyGUI.Utils;
 
 namespace FairyGUIEditor
 {
diff --git a/Source/Scripts/Editor/UIConfigEditor.cs b/Source/Scripts/Editor/UIConfigEditor.cs
index 045d35fe..ea1170f7 100644
--- a/Source/Scripts/Editor/UIConfigEditor.cs
+++ b/Source/Scripts/Editor/UIConfigEditor.cs
@@ -1,5 +1,4 @@
-using System.Collections.Generic;
-using UnityEngine;
+using UnityEngine;
 using UnityEditor;
 using FairyGUI;
 
diff --git a/Source/Scripts/Editor/UIPainterEditor.cs b/Source/Scripts/Editor/UIPainterEditor.cs
index 36d7caf9..7e4c2049 100644
--- a/Source/Scripts/Editor/UIPainterEditor.cs
+++ b/Source/Scripts/Editor/UIPainterEditor.cs
@@ -1,6 +1,4 @@
-using System;
-using System.Collections.Generic;
-using UnityEngine;
+using UnityEngine;
 #if UNITY_5_3_OR_NEWER
 using UnityEditor.SceneManagement;
 #endif
diff --git a/Source/Scripts/Editor/UIPanelEditor.cs b/Source/Scripts/Editor/UIPanelEditor.cs
index 189a717b..a0d1ca08 100644
--- a/Source/Scripts/Editor/UIPanelEditor.cs
+++ b/Source/Scripts/Editor/UIPanelEditor.cs
@@ -1,18 +1,15 @@
-using System;
-using System.Collections.Generic;
-using UnityEngine;
+using UnityEngine;
 #if UNITY_5_3_OR_NEWER
 using UnityEditor.SceneManagement;
 #endif
 using UnityEditor;
-using FairyGUI;
 
 namespace FairyGUIEditor
 {
 	/// <summary>
 	/// 
 	/// </summary>
-	[CustomEditor(typeof(UIPanel))]
+	[CustomEditor(typeof(FairyGUI.UIPanel))]
 	public class UIPanelEditor : Editor
 	{
 		SerializedProperty packageName;
@@ -61,7 +58,7 @@ public override void OnInspectorGUI()
 		{
 			serializedObject.Update();
 
-			UIPanel panel = target as UIPanel;
+			FairyGUI.UIPanel panel = target as FairyGUI.UIPanel;
 #if UNITY_5
 			DrawPropertiesExcluding(serializedObject, propertyToExclude);
 #endif
@@ -107,21 +104,21 @@ public override void OnInspectorGUI()
 			EditorGUILayout.PropertyField(scale);
 			EditorGUILayout.Space();
 
-			FitScreen oldFitScreen = (FitScreen)fitScreen.enumValueIndex;
+			FairyGUI.FitScreen oldFitScreen = (FairyGUI.FitScreen)fitScreen.enumValueIndex;
 			EditorGUILayout.PropertyField(fitScreen);
 
 			if (serializedObject.ApplyModifiedProperties())
 			{
 				if (PrefabUtility.GetPrefabType(panel) != PrefabType.Prefab)
 				{
-					panel.ApplyModifiedProperties(sortingOrder.intValue != oldSortingOrder, (FitScreen)fitScreen.enumValueIndex != oldFitScreen);
+					panel.ApplyModifiedProperties(sortingOrder.intValue != oldSortingOrder, (FairyGUI.FitScreen)fitScreen.enumValueIndex != oldFitScreen);
 				}
 			}
 		}
 
 		void OnSceneGUI()
 		{
-			UIPanel panel = (target as UIPanel);
+			FairyGUI.UIPanel panel = (target as FairyGUI.UIPanel);
 			if (panel.container == null)
 				return;
 
diff --git a/Source/Scripts/Gesture/LongPressGesture.cs b/Source/Scripts/Gesture/LongPressGesture.cs
index 1c62864a..eed3dede 100644
--- a/Source/Scripts/Gesture/LongPressGesture.cs
+++ b/Source/Scripts/Gesture/LongPressGesture.cs
@@ -37,6 +37,11 @@ public class LongPressGesture : EventDispatcher
 		/// </summary>
 		public bool once;
 
+		/// <summary>
+		/// 手指按住后，移动超出此半径范围则手势停止。
+		/// </summary>
+		public int holdRangeRadius;
+
 		GObject _host;
 		Vector2 _startPoint;
 		bool _started;
@@ -49,6 +54,7 @@ public LongPressGesture(GObject host)
 			_host = host;
 			trigger = TRIGGER;
 			interval = INTERVAL;
+			holdRangeRadius = 50;
 			Enable(true);
 
 			onBegin = new EventListener(this, "onLongPressBegin");
@@ -95,9 +101,8 @@ void __touchBegin(EventContext context)
 
 		void __timer(object param)
 		{
-			Vector2 pt = Stage.inst.touchPosition;
-			pt = _host.GlobalToLocal(pt) - _startPoint;
-			if (Mathf.Abs(pt.x) > UIConfig.touchDragSensitivity || Mathf.Abs(pt.y) > UIConfig.touchDragSensitivity)
+			Vector2 pt = _host.GlobalToLocal(Stage.inst.touchPosition);
+			if (Mathf.Pow(pt.x - _startPoint.x, 2) + Mathf.Pow(pt.y - _startPoint.y, 2) > Mathf.Pow(holdRangeRadius, 2))
 			{
 				Timers.inst.Remove(__timer);
 				return;
@@ -107,7 +112,7 @@ void __timer(object param)
 				_started = true;
 				onBegin.Call();
 
-				if(!once)
+				if (!once)
 					Timers.inst.Add(interval, 0, __timer);
 			}
 
diff --git a/Source/Scripts/UI/GList.cs b/Source/Scripts/UI/GList.cs
index b67c424e..932b58bf 100644
--- a/Source/Scripts/UI/GList.cs
+++ b/Source/Scripts/UI/GList.cs
@@ -1953,7 +1953,7 @@ void HandleScroll3(bool forceUpdate)
 					itemRenderer(i % _numItems, ii.obj);
 
 				ii.obj.SetXY((int)(i / pageSize) * viewWidth + col * (ii.size.x + _columnGap),
-					(i / _curLineItemCount) % _curLineItemCount2 * (ii.size.y + _lineGap));
+					(int)(i / _curLineItemCount) % _curLineItemCount2 * (ii.size.y + _lineGap));
 			}
 
 			//释放未使用的
diff --git a/Source/Scripts/UI/UIPanel.cs b/Source/Scripts/UI/UIPanel.cs
index e91cbadb..3cc30ebf 100644
--- a/Source/Scripts/UI/UIPanel.cs
+++ b/Source/Scripts/UI/UIPanel.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using UnityEngine;
-using FairyGUI.Utils;
 
 namespace FairyGUI
 {