From 3809c3ba4d4d6e06985db64b2afa165795f140a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=83=E9=B8=9F?= <984082450@qq.com>
Date: Sat, 30 Sep 2017 15:48:47 +0800
Subject: [PATCH] fix itemAnimator ValueAnimator with DividerHeight
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

ValueAnimator中的动画距离需要考虑到Listview的DividerHeight.
---
 .../diandian/coolco/dragsortlistview/DragSortListView.java  | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/com/diandian/coolco/dragsortlistview/DragSortListView.java b/app/src/main/java/com/diandian/coolco/dragsortlistview/DragSortListView.java
index 97d8b5c..2959d5a 100644
--- a/app/src/main/java/com/diandian/coolco/dragsortlistview/DragSortListView.java
+++ b/app/src/main/java/com/diandian/coolco/dragsortlistview/DragSortListView.java
@@ -92,7 +92,7 @@ private void init() {
         draggingItemViewBitmapPaint = new Paint();
         draggingItemViewBitmapPaint.setAlpha(0x88);
 
-        setLayerType(View.LAYER_TYPE_HARDWARE, null);//Ӳ������
+        setLayerType(View.LAYER_TYPE_HARDWARE, null); //hardware acceleration
 
         needMoveItems = new ArrayList<View>();
     }
@@ -254,7 +254,9 @@ private void moveItems(final int oldEmptyPosition, final int newEmptyPosition, f
 
         initNeedMoveItems(oldEmptyPosition, newEmptyPosition);
 
-        itemAnimator = newEmptyPosition > oldEmptyPosition ? ValueAnimator.ofFloat(0, -draggingItemHeight) : ValueAnimator.ofFloat(0, draggingItemHeight);//currPosition > srcPosition�������ƶ�itemView
+        itemAnimator = newEmptyPosition > oldEmptyPosition 
+            ? ValueAnimator.ofFloat(0, -draggingItemHeight - getDividerHeight()) 
+            : ValueAnimator.ofFloat(0, draggingItemHeight + getDividerHeight()); //when currPosition > srcPosition, move up itemView
         itemAnimator.setDuration(duration);
         itemAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
             @Override