From e68722d1dad20b79a038d20d3645bcd3bcbd02a9 Mon Sep 17 00:00:00 2001
From: longerian <xlhongultimate@gmail.com>
Date: Sun, 7 Jan 2018 19:24:13 +0800
Subject: [PATCH] fix startSpace and endSpace error when layout from end to
 start

---
 .../android/vlayout/ExposeLinearLayoutManagerEx.java  | 11 +++++++++++
 .../android/vlayout/layout/BaseLayoutHelper.java      | 11 +++--------
 .../android/vlayout/layout/RangeGridLayoutHelper.java |  2 +-
 3 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/vlayout/src/main/java/com/alibaba/android/vlayout/ExposeLinearLayoutManagerEx.java b/vlayout/src/main/java/com/alibaba/android/vlayout/ExposeLinearLayoutManagerEx.java
index ec3d5f0a..59ca1ca5 100644
--- a/vlayout/src/main/java/com/alibaba/android/vlayout/ExposeLinearLayoutManagerEx.java
+++ b/vlayout/src/main/java/com/alibaba/android/vlayout/ExposeLinearLayoutManagerEx.java
@@ -1739,11 +1739,22 @@ public void assignFromView(View child) {
             if (mLayoutFromEnd) {
                 mCoordinate = mOrientationHelper.getDecoratedEnd(child) + computeAlignOffset(child, mLayoutFromEnd, true) +
                         mOrientationHelper.getTotalSpaceChange();
+                if (DEBUG) {
+                    Log.d(TAG, "1 mLayoutFromEnd " + mLayoutFromEnd + " mOrientationHelper.getDecoratedEnd(child) "
+                        + mOrientationHelper.getDecoratedEnd(child) + " computeAlignOffset(child, mLayoutFromEnd, true) " + computeAlignOffset(child, mLayoutFromEnd, true));
+                }
             } else {
                 mCoordinate = mOrientationHelper.getDecoratedStart(child) + computeAlignOffset(child, mLayoutFromEnd, true);
+                if (DEBUG) {
+                    Log.d(TAG, "2 mLayoutFromEnd " + mLayoutFromEnd + " mOrientationHelper.getDecoratedStart(child) "
+                        + mOrientationHelper.getDecoratedStart(child) + " computeAlignOffset(child, mLayoutFromEnd, true) " + computeAlignOffset(child, mLayoutFromEnd, true));
+                }
             }
 
             mPosition = getPosition(child);
+            if (DEBUG) {
+                Log.d(TAG, "position " + mPosition + " mCoordinate " + mCoordinate);
+            }
         }
     }
 
diff --git a/vlayout/src/main/java/com/alibaba/android/vlayout/layout/BaseLayoutHelper.java b/vlayout/src/main/java/com/alibaba/android/vlayout/layout/BaseLayoutHelper.java
index f66e8f4e..b67040b0 100644
--- a/vlayout/src/main/java/com/alibaba/android/vlayout/layout/BaseLayoutHelper.java
+++ b/vlayout/src/main/java/com/alibaba/android/vlayout/layout/BaseLayoutHelper.java
@@ -549,16 +549,12 @@ protected int computeStartSpace(LayoutManagerHelper helper, boolean layoutInVert
             return 0;
 
         if (!isOverLapMargin) {
-            startSpace = layoutInVertical
-                    ? (isLayoutEnd ? mMarginTop + mPaddingTop : mMarginBottom + mPaddingBottom)
-                    : (isLayoutEnd ? mMarginLeft + mPaddingLeft : mMarginRight + mPaddingRight);
+            startSpace = layoutInVertical ? mMarginTop + mPaddingTop : mMarginLeft + mPaddingLeft;
         } else {
             int offset = 0;
 
             if (lastMarginLayoutHelper == null) {
-                offset = layoutInVertical
-                        ? (isLayoutEnd ? mMarginTop + mPaddingTop : mMarginBottom + mPaddingBottom)
-                        : (isLayoutEnd ? mMarginLeft + mPaddingLeft : mMarginRight + mPaddingRight);
+                offset = layoutInVertical ? mMarginTop + mPaddingTop : mMarginLeft + mPaddingLeft;
             } else {
                 offset = layoutInVertical
                         ? (isLayoutEnd ? calGap(lastMarginLayoutHelper.mMarginBottom, mMarginTop) : calGap(lastMarginLayoutHelper.mMarginTop, mMarginBottom))
@@ -576,8 +572,7 @@ protected int computeStartSpace(LayoutManagerHelper helper, boolean layoutInVert
 
     protected int computeEndSpace(LayoutManagerHelper helper, boolean layoutInVertical, boolean isLayoutEnd, boolean isOverLapMargin) {
         int endSpace = layoutInVertical
-                ? (isLayoutEnd ? mMarginBottom + mPaddingBottom : mMarginTop + mPaddingTop)
-                : (isLayoutEnd ? mMarginRight + mPaddingRight : mMarginLeft + mPaddingLeft);
+                ? mMarginBottom + mPaddingBottom : mMarginLeft + mPaddingLeft;
         //Log.e("huang", "computeEndSpace offset: " + endSpace + ", isLayoutEnd: " + isLayoutEnd + ", " + this);
         //Log.e("huang", "===================\n\n");
         return endSpace;
diff --git a/vlayout/src/main/java/com/alibaba/android/vlayout/layout/RangeGridLayoutHelper.java b/vlayout/src/main/java/com/alibaba/android/vlayout/layout/RangeGridLayoutHelper.java
index 12b210db..9869032f 100644
--- a/vlayout/src/main/java/com/alibaba/android/vlayout/layout/RangeGridLayoutHelper.java
+++ b/vlayout/src/main/java/com/alibaba/android/vlayout/layout/RangeGridLayoutHelper.java
@@ -977,7 +977,7 @@ public static int computeStartAlignOffset(GridRangeStyle rangeStyle, boolean lay
             for (int i = 0, size = rangeStyle.mChildren.size(); i < size; i++) {
                 GridRangeStyle childRangeStyle = rangeStyle.mChildren.valueAt(i);
                 if (!childRangeStyle.isChildrenEmpty()){
-                    //FIXEME may compute the wrong start space here
+                    //FIXME may compute the wrong start space here
                     offset += computeStartAlignOffset(childRangeStyle, layoutInVertical);
                 }else if (childRangeStyle.mRange.getLower().intValue() == startPosition) {
                     offset += (layoutInVertical ? -childRangeStyle.mMarginTop - childRangeStyle.mPaddingTop