commit 81abb4a9bc88d0b4aa81adfcff072484d421ec44
author linghe.lh <linghe.lh@alibaba-inc.com> Wed Dec 11 16:18:23 2019 +0800
committer linghe.lh <linghe.lh@alibaba-inc.com> Wed Dec 11 16:18:23 2019 +0800
tree de4f3ada76638ff3145e118d5a571ac61708ad85
parent 17531a3c341336eaf10e8ae72f8859e9fb961b43

[iOS] fix waterfall component repaint bug

ios/sdk/WeexSDK/Sources/Component/Recycler/WXRecyclerComponent.mm

diff --git a/ios/sdk/WeexSDK/Sources/Component/Recycler/WXRecyclerComponent.mm b/ios/sdk/WeexSDK/Sources/Component/Recycler/WXRecyclerComponent.mm
index bc246b4..22be575 100644
--- a/ios/sdk/WeexSDK/Sources/Component/Recycler/WXRecyclerComponent.mm
+++ b/ios/sdk/WeexSDK/Sources/Component/Recycler/WXRecyclerComponent.mm
@@ -252,18 +252,26 @@
         }
         
         if (attributes[@"columnWidth"]) {
-            layout.columnWidth = [WXConvert WXLength:attributes[@"columnWidth"] isFloat:YES scaleFactor:scaleFactor];
-            needUpdateLayout = YES;
+            WXLength* columnWidth = [WXConvert WXLength:attributes[@"columnWidth"] isFloat:YES scaleFactor:scaleFactor];
+            if (![columnWidth isEqualToLength:layout.columnWidth]) {
+                layout.columnWidth = columnWidth;
+                needUpdateLayout = YES;
+            }
         }
         
         if (attributes[@"columnCount"]) {
-            layout.columnCount = [WXConvert WXLength:attributes[@"columnCount"] isFloat:NO scaleFactor:1.0];
-            
-            needUpdateLayout = YES;
+            WXLength* columCount = [WXConvert WXLength:attributes[@"columnCount"] isFloat:NO scaleFactor:1.0];
+            if (![columCount isEqualToLength:layout.columnCount]) {
+                layout.columnCount = columCount;
+                needUpdateLayout = YES;
+            }
         }
         if (attributes[@"columnGap"]) {
-            layout.columnGap = [self _floatValueForColumnGap:([WXConvert WXLength:attributes[@"columnGap"] isFloat:YES scaleFactor:scaleFactor])];
-            needUpdateLayout = YES;
+            float columnGap = [self _floatValueForColumnGap:([WXConvert WXLength:attributes[@"columnGap"] isFloat:YES scaleFactor:scaleFactor])];
+            if (columnGap != layout.columnGap) {
+                layout.columnGap = columnGap;
+                needUpdateLayout = YES;
+            }
         }
         if (attributes[@"leftGap"]) {
             layout.leftGap = [WXConvert WXPixelType:attributes[@"leftGap"] scaleFactor:scaleFactor];