diff --git a/Android/doric/src/main/java/pub/doric/shader/SuperNode.java b/Android/doric/src/main/java/pub/doric/shader/SuperNode.java
index 06c434cc..4aece2a7 100644
--- a/Android/doric/src/main/java/pub/doric/shader/SuperNode.java
+++ b/Android/doric/src/main/java/pub/doric/shader/SuperNode.java
@@ -85,10 +85,9 @@ public abstract class SuperNode<V extends View> extends ViewNode<V> {
     protected abstract void blendSubNode(JSObject subProperties);
 
     protected void blendSubLayoutConfig(ViewNode viewNode, JSObject jsObject) {
-        JSValue jsValue = jsObject.getProperty("margin");
+        JSValue margin = jsObject.getProperty("margin");
         JSValue widthSpec = jsObject.getProperty("widthSpec");
         JSValue heightSpec = jsObject.getProperty("heightSpec");
-
         ViewGroup.LayoutParams layoutParams = viewNode.getLayoutParams();
         if (widthSpec.isNumber()) {
             switch (widthSpec.asNumber().toInt()) {
@@ -114,20 +113,20 @@ public abstract class SuperNode<V extends View> extends ViewNode<V> {
                     break;
             }
         }
-        if (jsValue.isObject() && layoutParams instanceof ViewGroup.MarginLayoutParams) {
-            JSValue topVal = jsValue.asObject().getProperty("top");
+        if (margin.isObject() && layoutParams instanceof ViewGroup.MarginLayoutParams) {
+            JSValue topVal = margin.asObject().getProperty("top");
             if (topVal.isNumber()) {
                 ((ViewGroup.MarginLayoutParams) layoutParams).topMargin = DoricUtils.dp2px(topVal.asNumber().toFloat());
             }
-            JSValue leftVal = jsValue.asObject().getProperty("left");
+            JSValue leftVal = margin.asObject().getProperty("left");
             if (leftVal.isNumber()) {
                 ((ViewGroup.MarginLayoutParams) layoutParams).leftMargin = DoricUtils.dp2px(leftVal.asNumber().toFloat());
             }
-            JSValue rightVal = jsValue.asObject().getProperty("right");
+            JSValue rightVal = margin.asObject().getProperty("right");
             if (rightVal.isNumber()) {
                 ((ViewGroup.MarginLayoutParams) layoutParams).rightMargin = DoricUtils.dp2px(rightVal.asNumber().toFloat());
             }
-            JSValue bottomVal = jsValue.asObject().getProperty("bottom");
+            JSValue bottomVal = margin.asObject().getProperty("bottom");
             if (bottomVal.isNumber()) {
                 ((ViewGroup.MarginLayoutParams) layoutParams).bottomMargin = DoricUtils.dp2px(bottomVal.asNumber().toFloat());
             }
diff --git a/iOS/Example/Example/ViewController.m b/iOS/Example/Example/ViewController.m
index e638a42a..bb96000b 100644
--- a/iOS/Example/Example/ViewController.m
+++ b/iOS/Example/Example/ViewController.m
@@ -30,7 +30,7 @@ - (void)viewDidLoad {
     NSString *jsContent = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
     self.doricContext = [[DoricContext alloc] initWithScript:jsContent source:@"test.js"];
     [self.doricContext.rootNode setupRootView:[[DoricStackView new] also:^(DoricStackView *it) {
-        it.layoutConfig = [[DoricStackConfig alloc] initWithWidth:DoricLayoutAtMost height:DoricLayoutAtMost];
+        it.layoutConfig = [[DoricLayoutConfig alloc] initWithWidth:DoricLayoutAtMost height:DoricLayoutAtMost];
         [self.view addSubview:it];
     }]];
     [self.doricContext initContextWithWidth:self.view.width height:self.view.height];
diff --git a/iOS/Pod/Classes/Shader/DoricGroupNode.h b/iOS/Pod/Classes/Shader/DoricGroupNode.h
index f96bbdc2..202eb7c2 100644
--- a/iOS/Pod/Classes/Shader/DoricGroupNode.h
+++ b/iOS/Pod/Classes/Shader/DoricGroupNode.h
@@ -24,7 +24,7 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-@interface DoricGroupNode <V:UIView *, P:DoricLayoutConfig *> : DoricSuperNode<V, P>
+@interface DoricGroupNode <V:UIView *> : DoricSuperNode<V>
 @end
 
 NS_ASSUME_NONNULL_END
diff --git a/iOS/Pod/Classes/Shader/DoricHLayoutNode.h b/iOS/Pod/Classes/Shader/DoricHLayoutNode.h
index 4f6d6086..edcbda0a 100644
--- a/iOS/Pod/Classes/Shader/DoricHLayoutNode.h
+++ b/iOS/Pod/Classes/Shader/DoricHLayoutNode.h
@@ -22,5 +22,5 @@
 
 #import "DoricGroupNode.h"
 
-@interface DoricHLayoutNode : DoricGroupNode<DoricHLayoutView *, DoricLinearConfig *>
+@interface DoricHLayoutNode : DoricGroupNode<DoricHLayoutView *>
 @end
diff --git a/iOS/Pod/Classes/Shader/DoricHLayoutNode.m b/iOS/Pod/Classes/Shader/DoricHLayoutNode.m
index 93d68ca0..ee66564a 100644
--- a/iOS/Pod/Classes/Shader/DoricHLayoutNode.m
+++ b/iOS/Pod/Classes/Shader/DoricHLayoutNode.m
@@ -37,29 +37,4 @@ - (void)blendView:(DoricHLayoutView *)view forPropName:(NSString *)name propValu
         [super blendView:view forPropName:name propValue:prop];
     }
 }
-
-- (void)blendSubNode:(DoricViewNode *)subNode layoutConfig:(NSDictionary *)layoutConfig {
-    [super blendSubNode:subNode layoutConfig:layoutConfig];
-    if (![subNode.layoutConfig isKindOfClass:DoricLinearConfig.class]) {
-        DoricLog(@"blend DoricHLayoutView child error,layout params not match");
-        return;
-    }
-    DoricLinearConfig *params = (DoricLinearConfig *) subNode.layoutConfig;
-    NSDictionary *margin = layoutConfig[@"margin"];
-    if (margin) {
-        params.margin = DoricMarginMake(
-                [(NSNumber *) margin[@"left"] floatValue],
-                [(NSNumber *) margin[@"top"] floatValue],
-                [(NSNumber *) margin[@"right"] floatValue],
-                [(NSNumber *) margin[@"bottom"] floatValue]);
-    }
-    NSNumber *alignment = layoutConfig[@"alignment"];
-    if (alignment) {
-        params.alignment = (DoricGravity) [alignment integerValue];
-    }
-}
-
-- (DoricLinearConfig *)generateDefaultLayoutParams {
-    return [[DoricLinearConfig alloc] init];
-}
 @end
diff --git a/iOS/Pod/Classes/Shader/DoricLayouts.h b/iOS/Pod/Classes/Shader/DoricLayouts.h
index 0ebdbc93..dbae4c21 100644
--- a/iOS/Pod/Classes/Shader/DoricLayouts.h
+++ b/iOS/Pod/Classes/Shader/DoricLayouts.h
@@ -54,43 +54,27 @@ typedef NS_ENUM(NSInteger, DoricGravity) {
 @interface DoricLayoutConfig : NSObject
 @property(nonatomic, assign) DoricLayoutSpec widthSpec;
 @property(nonatomic, assign) DoricLayoutSpec heightSpec;
+@property(nonatomic) DoricMargin margin;
 @property(nonatomic, assign) DoricGravity alignment;
+@property(nonatomic, assign) NSUInteger weight;
 
 - (instancetype)init;
 
 - (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)height;
 
-@end
-
-@interface DoricStackConfig : DoricLayoutConfig
-@end
-
-@interface DoricMarginConfig : DoricLayoutConfig
-@property(nonatomic) DoricMargin margin;
-
 - (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)height margin:(DoricMargin)margin;
-@end
 
-@interface DoricLinearConfig : DoricMarginConfig
-@property(nonatomic, assign) NSUInteger weight;
 @end
 
 
-@interface DoricLayoutContainer <T :DoricLayoutConfig *> : UIView
-
-- (T)configForChild:(__kindof UIView *)child;
-
-- (void)layout;
-
-- (void)requestLayout;
-@end
-
-@interface DoricStackView : DoricLayoutContainer<DoricStackConfig *>
+@interface DoricLayoutContainer : UIView
 @property(nonatomic, assign) DoricGravity gravity;
 @end
 
-@interface DoricLinearView : DoricLayoutContainer<DoricLinearConfig *>
-@property(nonatomic, assign) DoricGravity gravity;
+@interface DoricStackView : DoricLayoutContainer
+@end
+
+@interface DoricLinearView : DoricLayoutContainer
 @property(nonatomic, assign) CGFloat space;
 @end
 
diff --git a/iOS/Pod/Classes/Shader/DoricLayouts.m b/iOS/Pod/Classes/Shader/DoricLayouts.m
index 088d3339..b073cac7 100644
--- a/iOS/Pod/Classes/Shader/DoricLayouts.m
+++ b/iOS/Pod/Classes/Shader/DoricLayouts.m
@@ -46,107 +46,74 @@ - (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)hei
     }
     return self;
 }
-@end
-
-@implementation DoricMarginConfig
-- (instancetype)init {
-    if (self = [super init]) {
-        _margin = DoricMarginMake(0, 0, 0, 0);
-    }
-    return self;
-}
 
 - (instancetype)initWithWidth:(DoricLayoutSpec)width height:(DoricLayoutSpec)height margin:(DoricMargin)margin {
-    if (self = [super initWithWidth:width height:height]) {
+    if (self = [super init]) {
+        _widthSpec = width;
+        _heightSpec = height;
         _margin = margin;
     }
     return self;
 }
 @end
 
-@implementation DoricStackConfig
-@end
-
-@implementation DoricLinearConfig
-@end
-
 
 @interface DoricLayoutContainer ()
-@property(nonatomic, assign) BOOL waitingLayout;
+@property(nonatomic, assign) CGFloat contentWidth;
+@property(nonatomic, assign) CGFloat contentHeight;
+@property(nonatomic, assign) NSUInteger contentWeight;
+
+- (void)layout:(CGSize)targetSize;
+
+- (CGSize)sizeContent:(CGSize)size;
 @end
 
 @implementation DoricLayoutContainer
-- (instancetype)init {
-    if (self = [super init]) {
-        _waitingLayout = NO;
-    }
-    return self;
-}
 
-- (instancetype)initWithFrame:(CGRect)frame {
-    if (self = [super initWithFrame:frame]) {
-        _waitingLayout = NO;
-    }
-    return self;
-}
-
-- (instancetype)initWithCoder:(NSCoder *)coder {
-    if (self = [super initWithCoder:coder]) {
-        _waitingLayout = NO;
-    }
-    return self;
-}
-
-
-- (DoricLayoutConfig *)configForChild:(UIView *)child {
-    DoricLayoutConfig *config = child.layoutConfig;
-    if (!config) {
-        config = [[DoricLayoutConfig alloc] init];
-    }
-    return config;
-}
-
-- (void)requestLayout {
-    if ([self.superview isKindOfClass:[DoricLinearView class]]) {
-        [(DoricLinearView *) self.superview requestLayout];
-        return;
-    }
-    if (self.waitingLayout) {
-        return;
-    }
-    self.waitingLayout = YES;
-    __weak typeof(self) _self = self;
-    dispatch_async(dispatch_get_main_queue(), ^{
-        __strong typeof(_self) self = _self;
-        [self sizeToFit];
-        [self layout];
-        self.waitingLayout = NO;
-    });
-}
-
-- (void)setNeedsLayout {
-    [super setNeedsLayout];
-    if (self.waitingLayout) {
-        return;
-    }
-    [self requestLayout];
-}
-
-- (BOOL)waitingLayout {
+- (void)layoutSubviews {
     if ([self.superview isKindOfClass:[DoricLayoutContainer class]]) {
-        return [(DoricLayoutContainer *) self.superview waitingLayout];
+        [self.superview layoutSubviews];
+    } else {
+        CGSize size = [self sizeThatFits:CGSizeMake(self.superview.width, self.superview.height)];
+        [self layout:size];
     }
-    return _waitingLayout;
 }
 
-- (void)layout {
-    [self.subviews enumerateObjectsUsingBlock:^(__kindof UIView *child, NSUInteger idx, BOOL *stop) {
-        if ([child isKindOfClass:[DoricLayoutContainer class]]) {
-            [(DoricLayoutContainer *) child layout];
-        }
-    }];
+- (CGSize)sizeThatFits:(CGSize)size {
+    CGFloat width = self.width;
+    CGFloat height = self.height;
+
+    DoricLayoutConfig *config = self.layoutConfig;
+    if (!config) {
+        config = [DoricLayoutConfig new];
+    }
+    if (config.widthSpec == DoricLayoutAtMost
+            || config.widthSpec == DoricLayoutWrapContent) {
+        width = size.width - config.margin.left - config.margin.right;
+    }
+    if (config.heightSpec == DoricLayoutAtMost
+            || config.heightSpec == DoricLayoutWrapContent) {
+        height = size.height - config.margin.top - config.margin.bottom;
+    }
+
+    CGSize contentSize = [self sizeContent:CGSizeMake(width, height)];
+    if (config.widthSpec == DoricLayoutWrapContent) {
+        width = contentSize.width;
+    }
+    if (config.heightSpec == DoricLayoutWrapContent) {
+        height = contentSize.height;
+    }
+    return CGSizeMake(width, height);
 }
 
+- (CGSize)sizeContent:(CGSize)size {
+    return size;
+}
+
+- (void)layout:(CGSize)targetSize {
+    self.width = targetSize.width;
+    self.height = targetSize.height;
+}
 @end
 
 
@@ -157,175 +124,223 @@ @interface DoricStackView ()
 @end
 
 @implementation DoricStackView
-- (DoricStackConfig *)configForChild:(UIView *)child {
-    DoricStackConfig *config = (DoricStackConfig *) child.layoutConfig;
-    if (!config) {
-        config = [[DoricStackConfig alloc] init];
-    }
-    return config;
-}
 
-
-- (void)sizeToFit {
-    DoricLayoutConfig *config = self.layoutConfig;
-    self.contentWidth = 0;
-    self.contentHeight = 0;
+- (CGSize)sizeContent:(CGSize)size {
+    CGFloat contentWidth = 0;
+    CGFloat contentHeight = 0;
     for (UIView *child in self.subviews) {
         if (child.isHidden) {
             continue;
         }
-        DoricStackConfig *childConfig = [self configForChild:child];
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+        CGSize childSize = CGSizeMake(child.width, child.height);
         if ([child isKindOfClass:[DoricLayoutContainer class]]
                 || childConfig.widthSpec == DoricLayoutWrapContent
                 || childConfig.heightSpec == DoricLayoutWrapContent) {
-            [child sizeToFit];
+            childSize = [child sizeThatFits:CGSizeMake(size.width, size.height - contentHeight)];
         }
-        self.contentWidth = MAX(self.contentWidth, child.width);
-        self.contentHeight = MAX(self.contentHeight, child.height);
-    }
-    if (config.widthSpec == DoricLayoutWrapContent) {
-        self.width = self.contentWidth;
-    } else if (config.widthSpec == DoricLayoutAtMost) {
-        self.width = self.superview.width;
-    }
-    if (config.heightSpec == DoricLayoutWrapContent) {
-        self.height = self.contentHeight;
-    } else if (config.heightSpec == DoricLayoutAtMost) {
-        self.height = self.superview.height;
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            childSize.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            childSize.width = size.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            childSize.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            childSize.height = size.height - contentHeight;
+        }
+        if (childConfig.weight) {
+            childSize.height = child.height;
+        }
+        contentWidth = MAX(contentWidth, childSize.width + childConfig.margin.left + childConfig.margin.right);
+        contentHeight = MAX(contentHeight, childSize.height + childConfig.margin.top + childConfig.margin.bottom);
     }
+    self.contentWidth = contentWidth;
+    self.contentHeight = contentHeight;
+    return CGSizeMake(contentWidth, contentHeight);
 }
 
-- (void)layout {
+- (void)layout:(CGSize)targetSize {
     for (UIView *child in self.subviews) {
         if (child.isHidden) {
             continue;
         }
-        DoricStackConfig *childConfig = [self configForChild:child];
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+
+        CGSize size = [child sizeThatFits:CGSizeMake(targetSize.width, targetSize.height)];
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        }
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            size.width = targetSize.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            size.height = targetSize.height;
+        }
+        child.width = size.width;
+        child.height = size.height;
+
         DoricGravity gravity = childConfig.alignment | self.gravity;
+
         if ((gravity & LEFT) == LEFT) {
             child.left = 0;
         } else if ((gravity & RIGHT) == RIGHT) {
-            child.right = self.width;
+            child.right = targetSize.width;
         } else if ((gravity & CENTER_X) == CENTER_X) {
-            child.centerX = self.width / 2;
-        }
-        if ((gravity & TOP) == TOP) {
-            child.top = 0;
-        } else if ((gravity & BOTTOM) == BOTTOM) {
-            child.bottom = self.height;
-        } else if ((gravity & CENTER_Y) == CENTER_Y) {
-            child.centerY = self.height / 2;
-        }
-        if (childConfig.widthSpec == DoricLayoutAtMost) {
-            child.width = self.width;
-        }
-        if (childConfig.heightSpec == DoricLayoutAtMost) {
-            child.height = self.height;
-        }
-
-        if ([child isKindOfClass:[DoricLayoutContainer class]]) {
-            [(DoricLayoutContainer *) child layout];
-        }
-    }
-}
-@end
-
-@interface DoricLinearView ()
-@property(nonatomic, assign) CGFloat contentWidth;
-@property(nonatomic, assign) CGFloat contentHeight;
-@property(nonatomic, assign) NSUInteger contentWeight;
-@end
-
-@implementation DoricLinearView
-- (DoricLinearConfig *)configForChild:(UIView *)child {
-    DoricLinearConfig *config = (DoricLinearConfig *) child.layoutConfig;
-    if (!config) {
-        config = [[DoricLinearConfig alloc] init];
-    }
-    return config;
-}
-@end
-
-@implementation DoricVLayoutView
-
-- (void)sizeToFit {
-    DoricLayoutConfig *config = self.layoutConfig;
-    self.contentWidth = 0;
-    self.contentHeight = 0;
-    self.contentWeight = 0;
-    for (UIView *child in self.subviews) {
-        if (child.isHidden) {
-            continue;
-        }
-        DoricLinearConfig *childConfig = [self configForChild:child];
-        if ([child isKindOfClass:[DoricLayoutContainer class]]
-                || childConfig.widthSpec == DoricLayoutWrapContent
-                || childConfig.heightSpec == DoricLayoutWrapContent) {
-            [child sizeToFit];
-        }
-        self.contentWidth = MAX(self.contentWidth, child.width + childConfig.margin.left + childConfig.margin.right);
-        self.contentHeight += child.height + self.space + childConfig.margin.top + childConfig.margin.bottom;
-        self.contentWeight += childConfig.weight;
-    }
-    self.contentHeight -= self.space;
-    if (config.widthSpec == DoricLayoutWrapContent) {
-        self.width = self.contentWidth;
-    } else if (config.widthSpec == DoricLayoutAtMost) {
-        self.width = self.superview.width;
-    }
-    if (config.heightSpec == DoricLayoutWrapContent) {
-        self.height = self.contentHeight;
-    } else if (config.heightSpec == DoricLayoutAtMost) {
-        self.height = self.superview.height;
-    }
-    if (self.contentWeight) {
-        CGFloat remain = self.height - self.contentHeight;
-        for (UIView *child in self.subviews) {
-            if (child.isHidden) {
-                continue;
-            }
-            DoricLinearConfig *childConfig = [self configForChild:child];
-            if (childConfig.weight) {
-                child.height += remain / self.contentWeight * childConfig.weight;
-            }
-        }
-        self.contentHeight = self.height;
-    }
-}
-
-- (void)layout {
-    CGFloat yStart = 0;
-    if ((self.gravity & TOP) == TOP) {
-        yStart = 0;
-    } else if ((self.gravity & BOTTOM) == BOTTOM) {
-        yStart = self.height - self.contentHeight;
-    } else if ((self.gravity & CENTER_Y) == CENTER_Y) {
-        yStart = (self.height - self.contentHeight) / 2;
-    }
-    for (UIView *child in self.subviews) {
-        if (child.isHidden) {
-            continue;
-        }
-        DoricLinearConfig *childConfig = [self configForChild:child];
-        DoricGravity gravity = childConfig.alignment | self.gravity;
-        if ((gravity & LEFT) == LEFT) {
-            child.left = 0;
-        } else if ((gravity & RIGHT) == RIGHT) {
-            child.right = self.width;
-        } else if ((gravity & CENTER_X) == CENTER_X) {
-            child.centerX = self.width / 2;
+            child.centerX = targetSize.width / 2;
         } else {
             if (childConfig.margin.left) {
                 child.left = childConfig.margin.left;
             } else if (childConfig.margin.right) {
-                child.right = self.width - childConfig.margin.right;
+                child.right = targetSize.width - childConfig.margin.right;
             }
         }
-        if (childConfig.widthSpec == DoricLayoutAtMost) {
-            child.width = self.width;
+
+        if ((gravity & TOP) == TOP) {
+            child.top = 0;
+        } else if ((gravity & BOTTOM) == BOTTOM) {
+            child.bottom = targetSize.height;
+        } else if ((gravity & CENTER_Y) == CENTER_Y) {
+            child.centerY = targetSize.height / 2;
+        } else {
+            if (childConfig.margin.top) {
+                child.top = childConfig.margin.top;
+            } else if (childConfig.margin.bottom) {
+                child.bottom = targetSize.height - childConfig.margin.bottom;
+            }
         }
-        if (childConfig.heightSpec == DoricLayoutAtMost) {
-            child.height = self.height - yStart - childConfig.margin.top - childConfig.margin.bottom - self.space;
+
+        if ([child isKindOfClass:[DoricLayoutContainer class]]) {
+            [(DoricLayoutContainer *) child layout:size];
+        }
+    }
+    self.width = targetSize.width;
+    self.height = targetSize.height;
+}
+@end
+
+@implementation DoricLinearView
+@end
+
+@implementation DoricVLayoutView
+- (CGSize)sizeContent:(CGSize)size {
+    CGFloat contentWidth = 0;
+    CGFloat contentHeight = 0;
+    NSUInteger contentWeight = 0;
+    for (UIView *child in self.subviews) {
+        if (child.isHidden) {
+            continue;
+        }
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+        CGSize childSize = CGSizeMake(child.width, child.height);
+        if ([child isKindOfClass:[DoricLayoutContainer class]]
+                || childConfig.widthSpec == DoricLayoutWrapContent
+                || childConfig.heightSpec == DoricLayoutWrapContent) {
+            childSize = [child sizeThatFits:CGSizeMake(size.width, size.height - contentHeight)];
+        }
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            childSize.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            childSize.width = size.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            childSize.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            childSize.height = size.height - contentHeight;
+        }
+        if (childConfig.weight) {
+            childSize.height = child.height;
+        }
+        contentWidth = MAX(contentWidth, childSize.width + childConfig.margin.left + childConfig.margin.right);
+        contentHeight += childSize.height + self.space + childConfig.margin.top + childConfig.margin.bottom;
+        contentWeight += childConfig.weight;
+    }
+    contentHeight -= self.space;
+    self.contentWidth = contentWidth;
+    self.contentHeight = contentHeight;
+    self.contentWeight = contentWeight;
+    if (contentWeight) {
+        contentHeight = size.height;
+    }
+    return CGSizeMake(contentWidth, contentHeight);
+}
+
+- (void)layout:(CGSize)targetSize {
+    CGFloat yStart = 0;
+    if ((self.gravity & TOP) == TOP) {
+        yStart = 0;
+    } else if ((self.gravity & BOTTOM) == BOTTOM) {
+        yStart = targetSize.height - self.contentHeight;
+    } else if ((self.gravity & CENTER_Y) == CENTER_Y) {
+        yStart = (targetSize.height - self.contentHeight) / 2;
+    }
+    CGFloat remain = targetSize.height - self.contentHeight;
+    for (UIView *child in self.subviews) {
+        if (child.isHidden) {
+            continue;
+        }
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+
+        CGSize size = [child sizeThatFits:CGSizeMake(targetSize.width, targetSize.height - yStart)];
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        }
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            size.width = targetSize.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            size.height = targetSize.height - yStart;
+        }
+        if (childConfig.weight) {
+            size.height = child.height;
+        }
+
+        if (childConfig.weight) {
+            size.height += remain / self.contentWeight * childConfig.weight;
+        }
+        child.width = size.width;
+        child.height = size.height;
+
+        DoricGravity gravity = childConfig.alignment | self.gravity;
+
+        if ((gravity & LEFT) == LEFT) {
+            child.left = 0;
+        } else if ((gravity & RIGHT) == RIGHT) {
+            child.right = self.width;
+        } else if ((gravity & CENTER_X) == CENTER_X) {
+            child.centerX = targetSize.width / 2;
+        } else {
+            if (childConfig.margin.left) {
+                child.left = childConfig.margin.left;
+            } else if (childConfig.margin.right) {
+                child.right = targetSize.width - childConfig.margin.right;
+            }
         }
         if (childConfig.margin.top) {
             yStart += childConfig.margin.top;
@@ -336,102 +351,124 @@ - (void)layout {
             yStart += childConfig.margin.bottom;
         }
         if ([child isKindOfClass:[DoricLayoutContainer class]]) {
-            [(DoricLayoutContainer *) child layout];
+            [(DoricLayoutContainer *) child layout:size];
         }
     }
+    self.width = targetSize.width;
+    self.height = targetSize.height;
 }
 @end
 
 @implementation DoricHLayoutView
-- (void)sizeToFit {
-    DoricLinearConfig *config;
-    if ([self.superview isKindOfClass:[DoricLinearView class]]) {
-        config = [(DoricLinearView *) self.superview configForChild:self];
-    } else {
-        config = (DoricLinearConfig *) self.layoutConfig;
-        if (!config) {
-            config = [[DoricLinearConfig alloc] init];
-        }
-    }
-    self.contentWidth = 0;
-    self.contentHeight = 0;
-    self.contentWeight = 0;
+
+- (CGSize)sizeContent:(CGSize)size {
+    CGFloat contentWidth = 0;
+    CGFloat contentHeight = 0;
+    NSUInteger contentWeight = 0;
     for (UIView *child in self.subviews) {
         if (child.isHidden) {
             continue;
         }
-        DoricLinearConfig *childConfig = [self configForChild:child];
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+        CGSize childSize = CGSizeMake(child.width, child.height);
         if ([child isKindOfClass:[DoricLayoutContainer class]]
                 || childConfig.widthSpec == DoricLayoutWrapContent
                 || childConfig.heightSpec == DoricLayoutWrapContent) {
-            [child sizeToFit];
+            childSize = [child sizeThatFits:CGSizeMake(size.width - contentWidth, size.height)];
         }
-        self.contentHeight = MAX(self.contentHeight, child.height + childConfig.margin.top + childConfig.margin.bottom);
-        self.contentWidth += child.width + self.space + childConfig.margin.left + childConfig.margin.right;
-        self.contentWeight += childConfig.weight;
-    }
-    self.contentWidth -= self.space;
-    if (config.widthSpec == DoricLayoutWrapContent) {
-        self.width = self.contentWidth;
-    } else if (config.widthSpec == DoricLayoutAtMost) {
-        self.width = self.superview.width;
-    }
-    if (config.heightSpec == DoricLayoutWrapContent) {
-        self.height = self.contentHeight;
-    } else if (config.heightSpec == DoricLayoutAtMost) {
-        self.height = self.superview.height;
-    }
-    if (self.contentWeight) {
-        CGFloat remain = self.width - self.contentWidth;
-        for (UIView *child in self.subviews) {
-            if (child.isHidden) {
-                continue;
-            }
-            DoricLinearConfig *childConfig = [self configForChild:child];
-            if (childConfig.weight) {
-                child.width += remain / self.contentWeight * childConfig.weight;
-            }
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            childSize.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            childSize.width = size.width - contentWidth;
         }
-        self.contentWidth = self.width;
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            childSize.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            childSize.height = size.height;
+        }
+        if (childConfig.weight) {
+            childSize.width = child.width;
+        }
+        contentWidth += childSize.width + self.space + childConfig.margin.left + childConfig.margin.right;
+        contentHeight = MAX(contentHeight, childSize.height + childConfig.margin.top + childConfig.margin.bottom);
+        contentWeight += childConfig.weight;
     }
+    contentWidth -= self.space;
+    self.contentWidth = contentWidth;
+    self.contentHeight = contentHeight;
+    self.contentWeight = contentWeight;
+    if (contentWeight) {
+        contentWidth = size.width;
+    }
+    return CGSizeMake(contentWidth, contentHeight);
 }
 
-- (void)layout {
+- (void)layout:(CGSize)targetSize {
     CGFloat xStart = 0;
-    if ((self.gravity & LEFT) == LEFT) {
+    if (self.contentWeight) {
+        xStart = 0;
+    } else if ((self.gravity & LEFT) == LEFT) {
         xStart = 0;
     } else if ((self.gravity & RIGHT) == RIGHT) {
-        xStart = self.width - self.contentWidth;
+        xStart = targetSize.width - self.contentWidth;
     } else if ((self.gravity & CENTER_X) == CENTER_X) {
-        xStart = (self.width - self.contentWidth) / 2;
+        xStart = (targetSize.width - self.contentWidth) / 2;
     }
+    CGFloat remain = targetSize.width - self.contentWidth;
     for (UIView *child in self.subviews) {
         if (child.isHidden) {
             continue;
         }
-        DoricLinearConfig *childConfig = [self configForChild:child];
+        DoricLayoutConfig *childConfig = child.layoutConfig;
+        if (!childConfig) {
+            childConfig = [DoricLayoutConfig new];
+        }
+
+        CGSize size = [child sizeThatFits:CGSizeMake(targetSize.width - xStart, targetSize.height)];
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        }
+        if (childConfig.widthSpec == DoricLayoutExact) {
+            size.width = child.width;
+        } else if (childConfig.widthSpec == DoricLayoutAtMost) {
+            size.width = targetSize.width - xStart;
+        }
+        if (childConfig.heightSpec == DoricLayoutExact) {
+            size.height = child.height;
+        } else if (childConfig.heightSpec == DoricLayoutAtMost) {
+            size.height = targetSize.height;
+        }
+        if (childConfig.weight) {
+            size.width = child.width;
+        }
+
+        if (childConfig.weight) {
+            size.width += remain / self.contentWeight * childConfig.weight;
+        }
+        child.width = size.width;
+        child.height = size.height;
+
         DoricGravity gravity = childConfig.alignment | self.gravity;
         if ((gravity & TOP) == TOP) {
             child.top = 0;
         } else if ((gravity & BOTTOM) == BOTTOM) {
-            child.bottom = self.height;
+            child.bottom = targetSize.height;
         } else if ((gravity & CENTER_Y) == CENTER_Y) {
-            child.centerY = self.height / 2;
+            child.centerY = targetSize.height / 2;
         } else {
             if (childConfig.margin.top) {
                 child.top = childConfig.margin.top;
             } else if (childConfig.margin.bottom) {
-                child.bottom = self.height - childConfig.margin.bottom;
+                child.bottom = targetSize.height - childConfig.margin.bottom;
             }
         }
 
-        if (childConfig.heightSpec == DoricLayoutAtMost) {
-            child.height = self.height;
-        }
-        if (childConfig.widthSpec == DoricLayoutAtMost) {
-            child.width = self.width - xStart - childConfig.margin.right - childConfig.margin.left - self.space;
-        }
-
         if (childConfig.margin.left) {
             xStart += childConfig.margin.left;
         }
@@ -441,9 +478,11 @@ - (void)layout {
             xStart += childConfig.margin.right;
         }
         if ([child isKindOfClass:[DoricLayoutContainer class]]) {
-            [(DoricLayoutContainer *) child layout];
+            [(DoricLayoutContainer *) child layout:size];
         }
     }
+    self.width = targetSize.width;
+    self.height = targetSize.height;
 }
 @end
 
diff --git a/iOS/Pod/Classes/Shader/DoricRootNode.m b/iOS/Pod/Classes/Shader/DoricRootNode.m
index c06ce43b..7272a937 100644
--- a/iOS/Pod/Classes/Shader/DoricRootNode.m
+++ b/iOS/Pod/Classes/Shader/DoricRootNode.m
@@ -31,6 +31,6 @@ - (void)render:(NSDictionary *)props {
     [self blend:props];
 }
 - (void)requestLayout {
-    [self.view requestLayout];
+    [self.view setNeedsLayout];
 }
 @end
diff --git a/iOS/Pod/Classes/Shader/DoricStackNode.h b/iOS/Pod/Classes/Shader/DoricStackNode.h
index 375cafad..947d9c75 100644
--- a/iOS/Pod/Classes/Shader/DoricStackNode.h
+++ b/iOS/Pod/Classes/Shader/DoricStackNode.h
@@ -22,5 +22,5 @@
 
 #import "DoricGroupNode.h"
 
-@interface DoricStackNode : DoricGroupNode<DoricStackView *, DoricStackConfig *>
+@interface DoricStackNode : DoricGroupNode<DoricStackView *>
 @end
diff --git a/iOS/Pod/Classes/Shader/DoricStackNode.m b/iOS/Pod/Classes/Shader/DoricStackNode.m
index e349055f..9e2f7569 100644
--- a/iOS/Pod/Classes/Shader/DoricStackNode.m
+++ b/iOS/Pod/Classes/Shader/DoricStackNode.m
@@ -21,7 +21,6 @@
 //
 
 #import "DoricStackNode.h"
-#import "DoricUtil.h"
 
 @implementation DoricStackNode
 
@@ -36,22 +35,4 @@ - (void)blendView:(DoricStackView *)view forPropName:(NSString *)name propValue:
         [super blendView:view forPropName:name propValue:prop];
     }
 }
-
-- (DoricStackConfig *)generateDefaultLayoutParams {
-    return [[DoricStackConfig alloc] init];
-}
-
-- (void)blendSubNode:(DoricViewNode *)subNode layoutConfig:(NSDictionary *)layoutConfig {
-    [super blendSubNode:subNode layoutConfig:layoutConfig];
-    if (![subNode.layoutConfig isKindOfClass:DoricStackConfig.class]) {
-        DoricLog(@"blend DoricHLayoutView child error,layout params not match");
-        return;
-    }
-    DoricStackConfig *params = (DoricStackConfig *) subNode.layoutConfig;
-    NSNumber *alignment = layoutConfig[@"alignment"];
-    if (alignment) {
-        params.alignment = (DoricGravity) [alignment integerValue];
-    }
-}
-
 @end
diff --git a/iOS/Pod/Classes/Shader/DoricSuperNode.h b/iOS/Pod/Classes/Shader/DoricSuperNode.h
index d8b0c52d..b9915f07 100644
--- a/iOS/Pod/Classes/Shader/DoricSuperNode.h
+++ b/iOS/Pod/Classes/Shader/DoricSuperNode.h
@@ -20,8 +20,8 @@
 #import <Foundation/Foundation.h>
 #import "DoricViewNode.h"
 
-@interface DoricSuperNode<V:UIView *, P:DoricLayoutConfig *> : DoricViewNode<V>
-- (P)generateDefaultLayoutParams;
+@interface DoricSuperNode<V:UIView *> : DoricViewNode<V>
+- (DoricLayoutConfig *)generateDefaultLayoutParams;
 
 - (void)blendSubNode:(DoricViewNode *)subNode layoutConfig:(NSDictionary *)layoutConfig;
 
diff --git a/iOS/Pod/Classes/Shader/DoricSuperNode.m b/iOS/Pod/Classes/Shader/DoricSuperNode.m
index 439fc6e9..b06ee2db 100644
--- a/iOS/Pod/Classes/Shader/DoricSuperNode.m
+++ b/iOS/Pod/Classes/Shader/DoricSuperNode.m
@@ -80,17 +80,20 @@ - (void)blendSubNode:(DoricViewNode *)subNode layoutConfig:(NSDictionary *)layou
         }
     }];
 
-    if ([params isKindOfClass:DoricMarginConfig.class]) {
-        DoricMarginConfig *marginParams = (DoricMarginConfig *) params;
-        NSDictionary *margin = layoutConfig[@"margin"];
-        if (margin) {
-            marginParams.margin = DoricMarginMake(
-                    [(NSNumber *) margin[@"left"] floatValue],
-                    [(NSNumber *) margin[@"top"] floatValue],
-                    [(NSNumber *) margin[@"right"] floatValue],
-                    [(NSNumber *) margin[@"bottom"] floatValue]);
-        }
+    NSDictionary *margin = layoutConfig[@"margin"];
+    if (margin) {
+        params.margin = DoricMarginMake(
+                [(NSNumber *) margin[@"left"] floatValue],
+                [(NSNumber *) margin[@"top"] floatValue],
+                [(NSNumber *) margin[@"right"] floatValue],
+                [(NSNumber *) margin[@"bottom"] floatValue]);
     }
+
+    NSNumber *alignment = layoutConfig[@"alignment"];
+    if (alignment) {
+        params.alignment = (DoricGravity) [alignment integerValue];
+    }
+
 }
 
 - (void)blendSubNode:(NSDictionary *)subModel {
diff --git a/iOS/Pod/Classes/Shader/DoricVLayoutNode.h b/iOS/Pod/Classes/Shader/DoricVLayoutNode.h
index 6024eaa2..853f3f7b 100644
--- a/iOS/Pod/Classes/Shader/DoricVLayoutNode.h
+++ b/iOS/Pod/Classes/Shader/DoricVLayoutNode.h
@@ -22,5 +22,5 @@
 
 #import "DoricGroupNode.h"
 
-@interface DoricVLayoutNode : DoricGroupNode<DoricVLayoutView *, DoricLinearConfig *>
+@interface DoricVLayoutNode : DoricGroupNode<DoricVLayoutView *>
 @end
diff --git a/iOS/Pod/Classes/Shader/DoricVLayoutNode.m b/iOS/Pod/Classes/Shader/DoricVLayoutNode.m
index c1fea393..d7b5d94d 100644
--- a/iOS/Pod/Classes/Shader/DoricVLayoutNode.m
+++ b/iOS/Pod/Classes/Shader/DoricVLayoutNode.m
@@ -21,7 +21,6 @@
 //
 
 #import "DoricVLayoutNode.h"
-#import "DoricUtil.h"
 
 @implementation DoricVLayoutNode
 
@@ -39,28 +38,4 @@ - (void)blendView:(DoricVLayoutView *)view forPropName:(NSString *)name propValu
     }
 }
 
-- (void)blendSubNode:(DoricViewNode *)subNode layoutConfig:(NSDictionary *)layoutconfig {
-    [super blendSubNode:subNode layoutConfig:layoutconfig];
-    if (![subNode.layoutConfig isKindOfClass:DoricLinearConfig.class]) {
-        DoricLog(@"blend DoricVLayoutView child error,layout params not match");
-        return;
-    }
-    DoricLinearConfig *params = (DoricLinearConfig *) subNode.layoutConfig;
-    NSDictionary *margin = layoutconfig[@"margin"];
-    if (margin) {
-        params.margin = DoricMarginMake(
-                [(NSNumber *) margin[@"left"] floatValue],
-                [(NSNumber *) margin[@"top"] floatValue],
-                [(NSNumber *) margin[@"right"] floatValue],
-                [(NSNumber *) margin[@"bottom"] floatValue]);
-    }
-    NSNumber *alignment = layoutconfig[@"alignment"];
-    if (alignment) {
-        params.alignment = (DoricGravity) [alignment integerValue];
-    }
-}
-
-- (DoricLinearConfig *)generateDefaultLayoutParams {
-    return [[DoricLinearConfig alloc] init];
-}
 @end
diff --git a/js-framework/src/ui/layout.ts b/js-framework/src/ui/layout.ts
index 6cba6db9..bfeb246a 100644
--- a/js-framework/src/ui/layout.ts
+++ b/js-framework/src/ui/layout.ts
@@ -16,14 +16,6 @@
 import { LayoutConfig, Group, Property, IView } from "./view";
 import { Gravity } from "../util/gravity";
 
-export interface StackConfig extends LayoutConfig {
-
-}
-
-export interface LinearConfig extends LayoutConfig {
-    weight?: number
-}
-
 export interface IStack extends IView {
     gravity?: Gravity
 }
diff --git a/js-framework/src/ui/view.ts b/js-framework/src/ui/view.ts
index 73869189..5e4be06f 100644
--- a/js-framework/src/ui/view.ts
+++ b/js-framework/src/ui/view.ts
@@ -35,6 +35,8 @@ export interface LayoutConfig {
         bottom?: number,
     }
     alignment?: Gravity
+    //Only affective in VLayout or HLayout
+    weight?: number
 }
 
 export function Property(target: Object, propKey: string) {