diff --git a/src/base/combination/bubble.js b/src/base/combination/bubble.js
index 11af9cb7a..f698b4a1a 100644
--- a/src/base/combination/bubble.js
+++ b/src/base/combination/bubble.js
@@ -44,7 +44,9 @@
             var self = this, o = this.options;
             this._initCombo();
             // 延迟绑定事件，这样可以将自己绑定的事情优先执行
-            BI.nextTick(this._initPullDownAction.bind(this));
+            BI.nextTick(() => {
+                !this.isDestroyed() && this._initPullDownAction();
+            });
             this.combo.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
                 if (self.isEnabled() && self.isValid()) {
                     if (type === BI.Events.EXPAND) {
@@ -82,7 +84,7 @@
                 element: this
             }, BI.LogicFactory.createLogic("vertical", BI.extend(o.logic, {
                 items: [
-                    {el: this.combo}
+                    { el: this.combo }
                 ]
             }))));
             o.isDefaultInit && (this._assertPopupView());
@@ -113,7 +115,7 @@
 
             var enterPopup = false;
 
-            function hide (e) {
+            function hide(e) {
                 if (self.isEnabled() && self.isValid() && self.combo.isEnabled() && self.combo.isValid() && o.toggle === true) {
                     self._hideView(e);
                     self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, "", self.combo);
@@ -255,7 +257,7 @@
                     scrolly: false,
                     element: this.options.container || this,
                     items: [
-                        {el: this.popupView}
+                        { el: this.popupView }
                     ]
                 });
                 this._rendered = true;
diff --git a/src/base/combination/combo.js b/src/base/combination/combo.js
index ddf020a62..604e2cac9 100644
--- a/src/base/combination/combo.js
+++ b/src/base/combination/combo.js
@@ -50,7 +50,9 @@
             var self = this, o = this.options;
             this._initCombo();
             // 延迟绑定事件，这样可以将自己绑定的事情优先执行
-            BI.nextTick(this._initPullDownAction.bind(this));
+            BI.nextTick(() => {
+                !this.isDestroyed() && this._initPullDownAction();
+            });
             this.combo.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
                 if (self.isEnabled() && self.isValid()) {
                     if (type === BI.Events.EXPAND) {
@@ -88,7 +90,7 @@
                 element: this
             }, BI.LogicFactory.createLogic("vertical", BI.extend(o.logic, {
                 items: [
-                    {el: this.combo}
+                    { el: this.combo }
                 ]
             }))));
             o.isDefaultInit && (this._assertPopupView());
@@ -153,7 +155,7 @@
             this._assertPopupViewRender();
             this.fireEvent(BI.Combo.EVENT_BEFORE_POPUPVIEW);
             // popupVisible是为了获取其宽高, 放到可视范围之外以防止在IE下闪一下
-            this.popupView.css({left: -999999999, top: -99999999});
+            this.popupView.css({ left: -999999999, top: -99999999 });
             this.popupView.visible();
             BI.each(needHideWhenAnotherComboOpen, function (i, combo) {
                 if (i !== self.getName()) {
diff --git a/src/base/combination/expander.js b/src/base/combination/expander.js
index 83b99566a..407413c40 100644
--- a/src/base/combination/expander.js
+++ b/src/base/combination/expander.js
@@ -26,7 +26,9 @@ BI.Expander = BI.inherit(BI.Widget, {
         this._expanded = !!o.el.open;
         this._initExpander();
         // 延迟绑定事件，这样可以将自己绑定的事情优先执行
-        BI.nextTick(this._initPullDownAction.bind(this));
+        BI.nextTick(() => {
+            !this.isDestroyed() && this._initPullDownAction();
+        });
         this.expander.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
             if (self.isEnabled() && self.isValid()) {
                 if (type === BI.Events.EXPAND) {
@@ -63,7 +65,7 @@ BI.Expander = BI.inherit(BI.Widget, {
             scrolly: false,
             element: this,
             items: [
-                {el: this.expander}
+                { el: this.expander }
             ]
         });
         o.isDefaultInit && this._assertPopupView();
@@ -167,7 +169,7 @@ BI.Expander = BI.inherit(BI.Widget, {
                 scrolly: false,
                 element: this,
                 items: [
-                    {el: this.popupView}
+                    { el: this.popupView }
                 ]
             });
             this._rendered = true;
diff --git a/src/base/combination/switcher.js b/src/base/combination/switcher.js
index b464af3d9..1a929f704 100644
--- a/src/base/combination/switcher.js
+++ b/src/base/combination/switcher.js
@@ -26,7 +26,9 @@ BI.Switcher = BI.inherit(BI.Widget, {
         var self = this, o = this.options;
         this._initSwitcher();
         // 延迟绑定事件，这样可以将自己绑定的事情优先执行
-        BI.nextTick(this._initPullDownAction.bind(this));
+        BI.nextTick(() => {
+            !this.isDestroyed() && this._initPullDownAction();
+        });
         this.switcher.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
             if (self.isEnabled() && self.isValid()) {
                 if (type === BI.Events.EXPAND) {
@@ -63,7 +65,7 @@ BI.Switcher = BI.inherit(BI.Widget, {
             scrolly: false,
             element: this,
             items: [
-                {el: this.switcher}
+                { el: this.switcher }
             ]
         });
         o.isDefaultInit && (this._assertPopupView());
@@ -136,7 +138,7 @@ BI.Switcher = BI.inherit(BI.Widget, {
         if (!this._created) {
             this.popupView = BI.createWidget(o.popup, {
                 type: "bi.button_group",
-                element: o.adapter && BI.Maskers.create(this.getName(), o.adapter, BI.extend({container: this}, o.masker)),
+                element: o.adapter && BI.Maskers.create(this.getName(), o.adapter, BI.extend({ container: this }, o.masker)),
                 cls: "switcher-popup",
                 layouts: [{
                     type: "bi.vertical",
@@ -157,7 +159,7 @@ BI.Switcher = BI.inherit(BI.Widget, {
                     scrolly: false,
                     element: this,
                     items: [
-                        {el: this.popupView}
+                        { el: this.popupView }
                     ]
                 });
             }
diff --git a/src/base/single/button/button.basic.js b/src/base/single/button/button.basic.js
index aab172495..da7791890 100644
--- a/src/base/single/button/button.basic.js
+++ b/src/base/single/button/button.basic.js
@@ -49,7 +49,9 @@ BI.BasicButton = BI.inherit(BI.Single, {
             this.setSelected(true);
         }
         // 延迟绑定事件，这样可以将自己绑定的事情优先执行
-        BI.nextTick(this.bindEvent.bind(this));
+        BI.nextTick(() => {
+            !this.isDestroyed() && this.bindEvent();
+        });
         BI.BasicButton.superclass._initRef.apply(this, arguments);
     },
 
@@ -211,7 +213,7 @@ BI.BasicButton = BI.inherit(BI.Single, {
                     // enter键等同于点击
                     o.attributes && o.attributes.zIndex >= 0 && hand.keyup(function (e) {
                         if (e.keyCode === BI.KeyCode.ENTER) {
-                           clk(e);
+                            clk(e);
                         }
                     });
                     break;
@@ -224,7 +226,7 @@ BI.BasicButton = BI.inherit(BI.Single, {
             "trailing": false
         });
 
-        function ev (e) {
+        function ev(e) {
             if (o.stopEvent) {
                 e.stopEvent();
             }
@@ -233,7 +235,7 @@ BI.BasicButton = BI.inherit(BI.Single, {
             }
         }
 
-        function clk (e) {
+        function clk(e) {
             ev(e);
             if (!self.isEnabled() || (self.isOnce() && self.isSelected())) {
                 return;
@@ -297,7 +299,7 @@ BI.BasicButton = BI.inherit(BI.Single, {
             onClick.apply(self, arguments);
         }
 
-        function getBubble () {
+        function getBubble() {
             var bubble = self.options.bubble;
             if (BI.isFunction(bubble)) {
                 return bubble();
diff --git a/src/core/4.widget.js b/src/core/4.widget.js
index 861fce38f..61b09a07b 100644
--- a/src/core/4.widget.js
+++ b/src/core/4.widget.js
@@ -17,7 +17,7 @@
 
     var requestAnimationFrame = _global.requestAnimationFrame || _global.webkitRequestAnimationFrame || _global.mozRequestAnimationFrame || _global.oRequestAnimationFrame || _global.msRequestAnimationFrame || _global.setTimeout;
 
-    function callLifeHook (self, life) {
+    function callLifeHook(self, life) {
         var hooks = [], hook;
         hook = self[life];
         if (hook) {
@@ -124,7 +124,7 @@
             var initCallbackCalled = false;
             var renderCallbackCalled = false;
 
-            function init () {
+            function init() {
                 // 加个保险
                 if (initCallbackCalled === true) {
                     _global.console && console.error("组件： 请检查beforeInit内部的写法，callback只能执行一次");
@@ -132,7 +132,7 @@
                 }
                 initCallbackCalled = true;
 
-                function render () {
+                function render() {
                     // 加个保险
                     if (renderCallbackCalled === true) {
                         _global.console && console.error("组件： 请检查beforeRender内部的写法，callback只能执行一次");
@@ -246,8 +246,8 @@
                     return getter.call(self, self);
                 }, (handler && function (v) {
                     handler.call(self, self, v);
-                }) || BI.emptyFn, BI.extend({deep: true}, options));
-                this._watchers.push(function unwatchFn () {
+                }) || BI.emptyFn, BI.extend({ deep: true }, options));
+                this._watchers.push(function unwatchFn() {
                     watcher.teardown();
                 });
                 return watcher.value;
@@ -346,6 +346,7 @@
 
         _initState: function () {
             this._isMounted = false;
+            this._isDestroyed = false;
         },
 
         __initWatch: function () {
@@ -449,6 +450,10 @@
             return this._isMounted;
         },
 
+        isDestroyed: function () {
+            return this._isDestroyed;
+        },
+
         setWidth: function (w) {
             this.options.width = w;
             this._initElementWidth();
@@ -681,11 +686,11 @@
         },
 
         isEnabled: function () {
-            return this.options.disabled === true ? false: !this.options._disabled;
+            return this.options.disabled === true ? false : !this.options._disabled;
         },
 
         isValid: function () {
-            return this.options.invalid === true ? false: !this.options._invalid;
+            return this.options.invalid === true ? false : !this.options._invalid;
         },
 
         isVisible: function () {
@@ -732,6 +737,7 @@
             this._isMounted = false;
             callLifeHook(this, "destroyed");
             this.destroyed = null;
+            this._isDestroyed = true;
         },
 
         _unMount: function () {
@@ -825,12 +831,12 @@
         BI.Widget.context = context = contextStack.pop();
     };
 
-    function pushTarget (_current) {
+    function pushTarget(_current) {
         if (current) currentStack.push(current);
         BI.Widget.current = current = _current;
     }
 
-    function popTarget () {
+    function popTarget() {
         BI.Widget.current = current = currentStack.pop();
     }