From f9738cbc1874e4e343c057fa6eb6b29a685a4fb4 Mon Sep 17 00:00:00 2001
From: cgspine <cgspine@gmail.com>
Date: Thu, 28 Feb 2019 23:21:42 +0800
Subject: [PATCH] add method isDragging

---
 .../QMUIPullRefreshLayout.java                | 20 +++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/qmui/src/main/java/com/qmuiteam/qmui/widget/pullRefreshLayout/QMUIPullRefreshLayout.java b/qmui/src/main/java/com/qmuiteam/qmui/widget/pullRefreshLayout/QMUIPullRefreshLayout.java
index 538844b2..e08bf33c 100644
--- a/qmui/src/main/java/com/qmuiteam/qmui/widget/pullRefreshLayout/QMUIPullRefreshLayout.java
+++ b/qmui/src/main/java/com/qmuiteam/qmui/widget/pullRefreshLayout/QMUIPullRefreshLayout.java
@@ -699,6 +699,10 @@ public class QMUIPullRefreshLayout extends ViewGroup implements NestedScrollingP
         return Math.abs(dy) > Math.abs(dx);
     }
 
+    public boolean isDragging() {
+        return mIsDragging;
+    }
+
     @Override
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
@@ -733,6 +737,7 @@ public class QMUIPullRefreshLayout extends ViewGroup implements NestedScrollingP
         mScroller.abortAnimation();
         mNestedScrollingParentHelper.onNestedScrollAccepted(child, target, axes);
         mNestedScrollInProgress = true;
+        mIsDragging = true;
     }
 
     @Override
@@ -770,6 +775,7 @@ public class QMUIPullRefreshLayout extends ViewGroup implements NestedScrollingP
         mNestedScrollingParentHelper.onStopNestedScroll(child);
         if (mNestedScrollInProgress) {
             mNestedScrollInProgress = false;
+            mIsDragging = false;
             if (!mNestScrollDurationRefreshing) {
                 finishPull(0);
             }
@@ -783,6 +789,7 @@ public class QMUIPullRefreshLayout extends ViewGroup implements NestedScrollingP
                 " ; velocityX = " + velocityX + " ; velocityY = " + velocityY);
         if (mTargetCurrentOffset > mTargetInitOffset) {
             mNestedScrollInProgress = false;
+            mIsDragging = false;
             if (!mNestScrollDurationRefreshing) {
                 finishPull((int) -velocityY);
             }
@@ -812,10 +819,7 @@ public class QMUIPullRefreshLayout extends ViewGroup implements NestedScrollingP
     }
 
     private int moveTargetViewTo(int target, boolean isDragging, boolean calculateAnyWay) {
-        target = Math.max(target, mTargetInitOffset);
-        if (!mEnableOverPull) {
-            target = Math.min(target, mTargetRefreshOffset);
-        }
+        target = calculateTargetOffset(target, mTargetInitOffset, mTargetRefreshOffset, mEnableOverPull);
         int offset = 0;
         if (target != mTargetCurrentOffset || calculateAnyWay) {
             offset = target - mTargetCurrentOffset;
@@ -848,6 +852,14 @@ public class QMUIPullRefreshLayout extends ViewGroup implements NestedScrollingP
         return offset;
     }
 
+    protected int calculateTargetOffset(int target, int targetInitOffset, int targetRefreshOffset, boolean enableOverPull) {
+        target = Math.max(target, targetInitOffset);
+        if (!enableOverPull) {
+            target = Math.min(target, targetRefreshOffset);
+        }
+        return target;
+    }
+
     private void acquireVelocityTracker(final MotionEvent event) {
         if (null == mVelocityTracker) {
             mVelocityTracker = VelocityTracker.obtain();