diff --git a/src/base/combination/combo.js b/src/base/combination/combo.js
index 6f2b3a326..879313495 100644
--- a/src/base/combination/combo.js
+++ b/src/base/combination/combo.js
@@ -220,7 +220,7 @@
                     },
                 },
             } : this.combo;
-            var positionRelativeElement = o.supportCSSTransform ? BI.DOM.getPositionRelativeContainingBlock(BI.isNull(o.container) ? this.element[0] : BI.Widget._renderEngine.createElement(BI.isFunction(o.container) ? o.container() : o.container)[0]) : null;
+            var positionRelativeElement = BI.DOM.getPositionRelativeContainingBlock(BI.isNull(o.container) ? this.element[0] : BI.Widget._renderEngine.createElement(BI.isFunction(o.container) ? o.container() : o.container)[0]);
             switch (o.direction) {
                 case "bottom":
                 case "bottom,right":
@@ -290,10 +290,6 @@
                     break;
             }
 
-            if ("adaptHeight" in p) {
-                this.resetListHeight(p.adaptHeight);
-            }
-
             var width = this.combo.element.outerWidth();
             var height = this.combo.element.outerHeight();
             this.popupView.setDirection && this.popupView.setDirection(p.dir, {
@@ -314,6 +310,12 @@
 
                 p.top && (p.top = p.top / scaleY);
                 p.left && (p.left = p.left / scaleX);
+
+                p.adaptHeight && (p.adaptHeight = p.adaptHeight / scaleY);
+            }
+
+            if ("adaptHeight" in p) {
+                this.resetListHeight(p.adaptHeight);
             }
 
             if ("left" in p) {
diff --git a/src/case/linearsegment/linear.segment.js b/src/case/linearsegment/linear.segment.js
index b0b00f95b..41d282263 100644
--- a/src/case/linearsegment/linear.segment.js
+++ b/src/case/linearsegment/linear.segment.js
@@ -47,6 +47,14 @@ BI.LinearSegment = BI.inherit(BI.Widget, {
 
     getValue: function () {
         return this.buttonGroup.getValue();
-    }
+    },
+
+    populate: function (buttons) {
+        var o = this.options;
+        this.buttonGroup.populate([BI.createItems(buttons, {
+            type: "bi.linear_segment_button",
+            height: o.height
+        })])
+    },
 });
 BI.shortcut("bi.linear_segment", BI.LinearSegment);
diff --git a/src/case/segment/segment.js b/src/case/segment/segment.js
index 3f323ffb6..2c1dda918 100644
--- a/src/case/segment/segment.js
+++ b/src/case/segment/segment.js
@@ -58,6 +58,15 @@ BI.Segment = BI.inherit(BI.Widget, {
     getValue: function () {
         return this.buttonGroup.getValue();
     },
+
+    populate: function (buttons) {
+        var o = this.options;
+        this.buttonGroup.populate([BI.createItems(buttons, {
+            type: "bi.segment_button",
+            height: BI.toPix(o.height, 2),
+            whiteSpace: o.whiteSpace,
+        })]);
+    },
 });
 BI.Segment.EVENT_CHANGE = "EVENT_CHANGE";
 BI.shortcut("bi.segment", BI.Segment);
diff --git a/src/core/platform/web/dom.js b/src/core/platform/web/dom.js
index 66e970b56..17dd9d479 100644
--- a/src/core/platform/web/dom.js
+++ b/src/core/platform/web/dom.js
@@ -327,7 +327,7 @@
                 top = comboOffset.top - containerBounds.top + extraHeight;
             } else if (needAdaptHeight) {
                 top = comboBounds.top - containerBounds.top + extraHeight;
-                adaptHeight = viewportBounds.height - top;
+                adaptHeight = viewportBounds.height - comboBounds.top;
             } else if (BI.DOM.isTopSpaceEnough(combo, popup, -1 * comboBounds.height + extraHeight)) {
                 // 下方空间不足且不允许调整高度的情况下，优先使用上对齐
                 top = comboBounds.top + comboBounds.height - popupBounds.height - containerBounds.top - extraHeight;
@@ -671,13 +671,13 @@
         },
 
 
-        getComboPosition: function (combo, popup, extraWidth, extraHeight, needAdaptHeight, directions, offsetStyle, container) {
+        getComboPosition: function (combo, popup, extraWidth, extraHeight, needAdaptHeight, directions, offsetStyle, positionRelativeElement) {
             extraWidth || (extraWidth = 0);
             extraHeight || (extraHeight = 0);
             var bodyHeight = BI.Widget._renderEngine.createElement("body").bounds().height - extraHeight;
             var maxHeight = Math.min(popup.attr("maxHeight") || bodyHeight, bodyHeight);
             popup.resetHeight && popup.resetHeight(maxHeight);
-            var position = BI.DOM.getComboPositionByDirections(combo, popup, extraWidth, extraHeight, needAdaptHeight, directions || ["bottom", "top", "right", "left"], container);
+            var position = BI.DOM.getComboPositionByDirections(combo, popup, extraWidth, extraHeight, needAdaptHeight, directions || ["bottom", "top", "right", "left"], positionRelativeElement);
             switch (offsetStyle) {
                 case "center":
                     if (position.change) {
@@ -699,7 +699,7 @@
                     break;
             }
             if (needAdaptHeight === true) {
-                popup.resetHeight && popup.resetHeight(Math.min(bodyHeight - position.top, maxHeight));
+                popup.resetHeight && popup.resetHeight(Math.min(bodyHeight - position.top + (positionRelativeElement ? positionRelativeElement.getBoundingClientRect().top : 0), maxHeight));
             }
             return position;
         },
diff --git a/typescript/base/single/button/button.basic.ts b/typescript/base/single/button/button.basic.ts
index 95ee1a3c3..24cfc2484 100644
--- a/typescript/base/single/button/button.basic.ts
+++ b/typescript/base/single/button/button.basic.ts
@@ -38,7 +38,7 @@ export declare class BasicButton extends Single {
         trigger?: string | null;
         handler?: Function;
         bubble?: Function | null | string;
-        text?: string;
+        text?: string | ((context: any) => string);
         el?: Obj;
     } & Single["props"];