diff --git a/src/ltui/action.lua b/src/ltui/action.lua
index 3a785a0..961d280 100644
--- a/src/ltui/action.lua
+++ b/src/ltui/action.lua
@@ -40,6 +40,7 @@ end
 action:register("ac_max", 
                 "ac_on_text_changed", 
                 "ac_on_selected",
+                "ac_on_resized",
                 "ac_on_enter",
                 "ac_on_load",
                 "ac_on_save",
diff --git a/src/ltui/boxdialog.lua b/src/ltui/boxdialog.lua
index 5952b4d..8b6c404 100644
--- a/src/ltui/boxdialog.lua
+++ b/src/ltui/boxdialog.lua
@@ -72,8 +72,8 @@ end
 
 -- on resize
 function boxdialog:on_resize()
-    textdialog.on_resize(self)
     self:box():bounds_set(rect{0, 3, self:panel():width(), self:panel():height() - 1})
+    textdialog.on_resize(self)
 end
 
 -- return module
diff --git a/src/ltui/dialog.lua b/src/ltui/dialog.lua
index 2604d97..9104c00 100644
--- a/src/ltui/dialog.lua
+++ b/src/ltui/dialog.lua
@@ -31,6 +31,25 @@ local curses = require("ltui/curses")
 
 -- define module
 local dialog = dialog or window()
+    
+-- update the position of all buttons 
+function dialog:_update_buttons_layout()
+
+    -- update the position of all buttons 
+    local index = 1
+    local width = self:buttons():width()
+    local count = self:buttons():count()
+    local padding = math.floor(width / 8)
+    for v in self:buttons():views() do
+        local x = padding + index * math.floor((width - padding * 2) / (count + 1)) - math.floor(v:width() / 2)
+        if x + v:width() > width then
+            x = math.max(0, width - v:width())
+        end
+        v:bounds():move2(x, 0)
+        v:invalidate(true)
+        index = index + 1
+    end
+end
 
 -- init dialog
 function dialog:init(name, bounds, title)
@@ -40,6 +59,10 @@ function dialog:init(name, bounds, title)
 
     -- insert buttons
     self:panel():insert(self:buttons())
+    self:panel():action_add(action.ac_on_resized, function (v)
+        self:buttons():bounds_set(rect:new(0, v:height() - 1, v:width(), 1))
+        self:_update_buttons_layout()
+    end)
 end
 
 -- get buttons
@@ -65,19 +88,7 @@ function dialog:button_add(name, text, command)
     self:buttons():insert(btn)
 
     -- update the position of all buttons 
-    local index = 1
-    local width = self:buttons():width()
-    local count = self:buttons():count()
-    local padding = math.floor(width / 8)
-    for v in self:buttons():views() do
-        local x = padding + index * math.floor((width - padding * 2) / (count + 1)) - math.floor(v:width() / 2)
-        if x + v:width() > width then
-            x = math.max(0, width - v:width())
-        end
-        v:bounds():move2(x, 0)
-        v:invalidate(true)
-        index = index + 1
-    end
+    self:_update_buttons_layout()
 
     -- invalidate
     self:invalidate()
@@ -113,7 +124,6 @@ end
 -- on resize
 function dialog:on_resize()
     window.on_resize(self)
-    self:buttons():bounds_set(rect:new(0, self:panel():height() - 1, self:panel():width(), 1))
 end
 
 -- return module
diff --git a/src/ltui/inputdialog.lua b/src/ltui/inputdialog.lua
index 49ea367..48cedac 100644
--- a/src/ltui/inputdialog.lua
+++ b/src/ltui/inputdialog.lua
@@ -59,6 +59,11 @@ function inputdialog:init(name, bounds, title)
             end
         end
     end)
+
+    -- on resize for panel
+    self:panel():action_add(action.ac_on_resized, function (v)
+        self:textedit():bounds_set(rect{0, 1, v:width(), v:height() - 1})
+    end)
 end
 
 -- get textedit
@@ -69,5 +74,10 @@ function inputdialog:textedit()
     return self._TEXTEDIT
 end
 
+-- on resize
+function inputdialog:on_resize()
+    textdialog.on_resize(self)
+end
+
 -- return module
 return inputdialog
diff --git a/src/ltui/textdialog.lua b/src/ltui/textdialog.lua
index 48bb335..3f31093 100644
--- a/src/ltui/textdialog.lua
+++ b/src/ltui/textdialog.lua
@@ -25,6 +25,7 @@ local event    = require("ltui/event")
 local dialog   = require("ltui/dialog")
 local curses   = require("ltui/curses")
 local textarea = require("ltui/textarea")
+local action   = require("ltui/action")
 
 -- define module
 local textdialog = textdialog or dialog()
@@ -40,6 +41,11 @@ function textdialog:init(name, bounds, title)
 
     -- select buttons by default
     self:panel():select(self:buttons())
+
+    -- on resize for panel
+    self:panel():action_add(action.ac_on_resized, function (v)
+        self:text():bounds_set(rect:new(0, 0, v:width(), v:height() - 1))
+    end)
 end
 
 -- get text
@@ -67,7 +73,6 @@ end
 -- on resize
 function textdialog:on_resize()
     dialog.on_resize(self)
-    self:text():bounds_set(rect:new(0, 0, self:panel():width(), self:panel():height() - 1))
 end
 
 -- return module
diff --git a/src/ltui/view.lua b/src/ltui/view.lua
index e9cf943..416ae34 100644
--- a/src/ltui/view.lua
+++ b/src/ltui/view.lua
@@ -20,11 +20,13 @@
 
 -- load modules
 local log    = require("ltui/base/log")
+local table  = require("ltui/base/table")
 local rect   = require("ltui/rect")
 local point  = require("ltui/point")
 local object = require("ltui/object")
 local canvas = require("ltui/canvas")
 local curses = require("ltui/curses")
+local action = require("ltui/action")
 
 -- define module
 local view = view or object()
@@ -232,6 +234,9 @@ function view:on_resize()
 
     -- clear mark
     self:state_set("resize", false)
+    
+    -- do action
+    self:action_on(action.ac_on_resized)
 end
 
 -- show view?
@@ -349,20 +354,21 @@ function view:extra_set(name, value)
     return self
 end
 
--- get action
-function view:action(name)
-    return self._ACTIONS[name]
-end
-
 -- set action
 function view:action_set(name, on_action)
     self._ACTIONS[name] = on_action
     return self
 end
 
+-- add action
+function view:action_add(name, on_action)
+    self._ACTIONS[name] = table.join(table.wrap(self._ACTIONS[name]), on_action)
+    return self
+end
+
 -- do action
 function view:action_on(name, ...)
-    local on_action = self:action(name)
+    local on_action = self._ACTIONS[name]
     if on_action then
         if type(on_action) == "string" then
             -- send command
@@ -372,6 +378,13 @@ function view:action_on(name, ...)
         elseif type(on_action) == "function" then
             -- do action script
             return on_action(self, ...)
+        elseif type(on_action) == "table" then
+            for _, on_action_val in ipairs(on_action) do
+                -- we cannot uses the return value of action for multi-actions
+                if type(on_action_val) == "function" then
+                    on_action_val(self, ...)
+                end
+            end
         end
     end
 end
diff --git a/tests/inputdialog.lua b/tests/inputdialog.lua
index f772628..83c3a3e 100644
--- a/tests/inputdialog.lua
+++ b/tests/inputdialog.lua
@@ -45,11 +45,27 @@ function demo:init()
     self:background_set("blue")
 
     -- init input dialog
-    local dialog_input = inputdialog:new("dialog.input", rect {0, 0, 50, 8})
-    dialog_input:text():text_set("please input text:")
-    dialog_input:button_add("no", "< No >", function (v) dialog_input:quit() end)
-    dialog_input:button_add("yes", "< Yes >", function (v) dialog_input:quit() end)
-    self:insert(dialog_input, {centerx = true, centery = true})
+    self:insert(self:dialog_input(), {centerx = true, centery = true})
+end
+
+-- input dialog
+function demo:dialog_input()
+    local dialog_input = self._DIALOG_INPUT
+    if not dialog_input then
+        dialog_input = inputdialog:new("dialog.input", rect{0, 0, math.floor(self:width() / 2), math.floor(self:height() / 3)})
+        dialog_input:text():text_set("please input text:")
+        dialog_input:button_add("no", "< No >", function (v) dialog_input:quit() end)
+        dialog_input:button_add("yes", "< Yes >", function (v) dialog_input:quit() end)
+        self._DIALOG_INPUT = dialog_input
+    end
+    return dialog_input
+end
+
+-- on resize
+function demo:on_resize()
+    self:dialog_input():bounds_set(rect{0, 0, math.floor(self:width() / 2), math.floor(self:height() / 3)})
+    self:center(self:dialog_input(), {centerx = true, centery = true})
+    application.on_resize(self)
 end
 
 -- run demo