iOS:fix Refreshable

doric-iOS/Pod/Classes/Refresh/DoricRefreshableNode.m

@@ -100,7 +100,6 @@ - (void)blendContent {
             self.view.contentView = it.view;
         }];
     }
-    [self.view.contentView.doricLayout apply:self.view.frame.size];
 }
 
 - (void)blendHeader {
@@ -137,7 +136,13 @@ - (void)blendHeader {
             self.view.headerView = it.view;
         }];
     }
+}
+
+- (void)requestLayout {
     [self.view.headerView.doricLayout apply:self.view.frame.size];
+    self.view.headerView.bottom = 0;
+    self.view.headerView.centerX = self.view.width / 2;
+    [self.view.contentView.doricLayout apply:self.view.frame.size];
 }
 
 - (void)blendSubNode:(NSDictionary *)subModel {

doric-iOS/Pod/Classes/Refresh/DoricSwipeRefreshLayout.m

@@ -77,6 +77,14 @@ - (void)setHeaderView:(UIView *)headerView {
     self.refreshable = YES;
 }
 
+- (void)layoutSubviews {
+    [super layoutSubviews];
+    if (self.contentOffset.y != 0) {
+        return;
+    }
+    self.contentSize = self.frame.size;
+}
+
 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
     if (-scrollView.contentOffset.y >= self.headerView.height) {
         dispatch_async(dispatch_get_main_queue(), ^{

doric-iOS/Pod/Classes/Shader/DoricLayouts.m

@@ -83,19 +83,25 @@ - (void)apply {
 }
 
 - (void)measure:(CGSize)targetSize {
+    CGFloat width;
+    CGFloat height;
     if (self.widthSpec == DoricLayoutMost) {
-        self.measuredWidth = targetSize.width;
+        width = self.measuredWidth = targetSize.width;
+    } else if (self.widthSpec == DoricLayoutJust) {
+        width = self.measuredWidth = self.width;
     } else {
-        self.measuredWidth = self.width;
+        width = targetSize.width;
     }
     if (self.heightSpec == DoricLayoutMost) {
-        self.measuredHeight = targetSize.height;
+        height = self.measuredHeight = targetSize.height;
+    } else if (self.heightSpec == DoricLayoutJust) {
+        height = self.measuredHeight = self.height;
     } else {
-        self.measuredHeight = self.height;
+        height = targetSize.height;
     }
     [self measureContent:CGSizeMake(
-            self.measuredWidth - self.paddingLeft - self.paddingRight,
-            self.measuredHeight - self.paddingTop - self.paddingBottom)];
+            width - self.paddingLeft - self.paddingRight,
+            height - self.paddingTop - self.paddingBottom)];
 
     BOOL needRemeasure = NO;
     if (self.maxWidth >= 0) {
@@ -168,10 +174,18 @@ - (void)setFrame {
             [obj.doricLayout setFrame];
         }];
     }
-    self.view.width = self.measuredWidth;
-    self.view.height = self.measuredHeight;
-    self.view.x = self.measuredX;
-    self.view.y = self.measuredY;
+    if (self.view.width != self.measuredWidth) {
+        self.view.width = self.measuredWidth;
+    }
+    if (self.view.height != self.measuredHeight) {
+        self.view.height = self.measuredHeight;
+    }
+    if (self.view.x != self.measuredX) {
+        self.view.x = self.measuredX;
+    }
+    if (self.view.y != self.measuredY) {
+        self.view.y = self.measuredY;
+    }
 }
 
 - (void)measureUndefinedContent:(CGSize)targetSize {
@@ -193,7 +207,6 @@ - (void)measureUndefinedContent:(CGSize)targetSize {
         } else {
             self.measuredHeight = measuredSize.height + self.paddingTop + self.paddingBottom;
         }
-
     }
 }