From d9bad5e29132ba9903522c72aab80c1f19367f6d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=A0=E5=AE=B6=E4=BC=9F?= <jiawei.zhang@cos-capital.com>
Date: Mon, 28 Jun 2021 11:03:19 +0800
Subject: [PATCH] =?UTF-8?q?[fix]=20=E4=BF=AE=E5=A4=8D=E5=9C=A8=E6=95=B0?=
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作者之前给滑动到边界时做了减速的效果，但是在数据只有两三条的时候，这个减速效果就变成了卡顿。参考androidWheelView的实现，修改了实现方案，在数据只有两三条的时候，不会出现卡顿。
---
 .../java/com/contrarywind/view/WheelView.java    | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/wheelview/src/main/java/com/contrarywind/view/WheelView.java b/wheelview/src/main/java/com/contrarywind/view/WheelView.java
index ea7327c7..38df75bc 100644
--- a/wheelview/src/main/java/com/contrarywind/view/WheelView.java
+++ b/wheelview/src/main/java/com/contrarywind/view/WheelView.java
@@ -670,11 +670,8 @@ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
     @Override
     public boolean onTouchEvent(MotionEvent event) {
         boolean eventConsumed = gestureDetector.onTouchEvent(event);
-        boolean isIgnore = false;//超过边界滑动时，不再绘制UI。
-
         float top = -initPosition * itemHeight;
         float bottom = (adapter.getItemsCount() - 1 - initPosition) * itemHeight;
-        float ratio = 0.25f;
 
         switch (event.getAction()) {
             case MotionEvent.ACTION_DOWN:
@@ -690,13 +687,10 @@ public boolean onTouchEvent(MotionEvent event) {
 
                 // normal mode。
                 if (!isLoop) {
-                    if ((totalScrollY - itemHeight * ratio < top && dy < 0)
-                            || (totalScrollY + itemHeight * ratio > bottom && dy > 0)) {
-                        //快滑动到边界了，设置已滑动到边界的标志
-                        totalScrollY -= dy;
-                        isIgnore = true;
-                    } else {
-                        isIgnore = false;
+                    if (totalScrollY < top) {
+                        totalScrollY = (int) top;
+                    } else if (totalScrollY > bottom) {
+                        totalScrollY = (int) bottom;
                     }
                 }
                 break;
@@ -735,7 +729,7 @@ public boolean onTouchEvent(MotionEvent event) {
                 }
                 break;
         }
-        if (!isIgnore && event.getAction() != MotionEvent.ACTION_DOWN) {
+        if (event.getAction() != MotionEvent.ACTION_DOWN) {
             invalidate();
         }
         return true;