diff --git a/example/qml/page/T_InfoBar.qml b/example/qml/page/T_InfoBar.qml
index 41b6d76f..24e3d907 100644
--- a/example/qml/page/T_InfoBar.qml
+++ b/example/qml/page/T_InfoBar.qml
@@ -12,7 +12,7 @@ FluScrollablePage{
     FluArea{
         Layout.fillWidth: true
         Layout.topMargin: 20
-        height: 200
+        height: 240
         paddings: 10
         ColumnLayout{
             spacing: 14
@@ -44,6 +44,12 @@ FluScrollablePage{
                     showSuccess("这是一个Success样式的InfoBar这是一个Success样式的InfoBar")
                 }
             }
+            FluButton{
+                text:"Loading"
+                onClicked: {
+                    showLoading()
+                }
+            }
         }
     }
     CodeExpander{
diff --git a/src/imports/FluentUI/Controls/FluTreeView.qml b/src/imports/FluentUI/Controls/FluTreeView.qml
index 181a669a..83540716 100644
--- a/src/imports/FluentUI/Controls/FluTreeView.qml
+++ b/src/imports/FluentUI/Controls/FluTreeView.qml
@@ -105,7 +105,6 @@ Item {
                             verticalCenter: parent.verticalCenter
                         }
                     }
-
                     MouseArea{
                         id:item_layout_mouse
                         anchors.fill: parent
@@ -200,9 +199,7 @@ Item {
                     FluIconButton{
                         id:item_layout_expanded
                         color:"#00000000"
-                        iconSource:item_layout.expanded?FluentIcons.ChevronDown:FluentIcons.ChevronRight
                         opacity: item_layout.hasChild
-                        iconSize: 15
                         onClicked: {
                             if(!item_layout.hasChild){
                                 item_layout_rect.onClickItem()
@@ -210,6 +207,18 @@ Item {
                             }
                             model.expanded = !model.expanded
                         }
+                        contentItem: FluIcon{
+                            rotation: item_layout.expanded?0:-90
+                            iconSource:FluentIcons.ChevronDown
+                            iconSize: 15
+                            Behavior on rotation {
+                                enabled: FluTheme.enableAnimation
+                                NumberAnimation{
+                                    duration: 167
+                                    easing.type: Easing.OutCubic
+                                }
+                            }
+                        }
                     }
                     FluText {
                         text:  item_layout.text
diff --git a/src/imports/FluentUI/Controls/FluWindow.qml b/src/imports/FluentUI/Controls/FluWindow.qml
index 67ee8c61..0bffd633 100644
--- a/src/imports/FluentUI/Controls/FluWindow.qml
+++ b/src/imports/FluentUI/Controls/FluWindow.qml
@@ -16,6 +16,7 @@ Window {
     property string route
     property var argument:({})
     property var pageRegister
+    property Component loadingItem: com_loading
     property var closeFunc: function(event){
         if(closeDestory){
             deleteWindow()
@@ -50,13 +51,65 @@ Window {
         anchors.fill: parent
         clip: true
     }
+    Loader{
+        property string loadingText: "加载中..."
+        property bool cancel: false
+        id:loader_loading
+        anchors.fill: container
+    }
     FluInfoBar{
         id:infoBar
         root: window
     }
+    Component{
+        id:com_loading
+        Popup{
+            id:popup_loading
+            modal:true
+            focus: true
+            anchors.centerIn: Overlay.overlay
+            closePolicy: {
+                if(cancel){
+                    return Popup.CloseOnEscape | Popup.CloseOnPressOutside
+                }
+                return Popup.NoAutoClose
+            }
+            Overlay.modal: Rectangle {
+                color: "#44000000"
+            }
+            onVisibleChanged: {
+                if(!visible){
+                    loader_loading.sourceComponent = undefined
+                }
+            }
+            visible: true
+            background: Item{}
+            contentItem: Item{
+                ColumnLayout{
+                    spacing: 8
+                    anchors.centerIn: parent
+                    FluProgressRing{
+                        Layout.alignment: Qt.AlignHCenter
+                    }
+                    FluText{
+                        text:loadingText
+                        Layout.alignment: Qt.AlignHCenter
+                    }
+                }
+            }
+        }
+    }
     WindowHelper{
         id:helper
     }
+    function showLoading(text = "加载中...",cancel = true){
+        loader_loading.loadingText = text
+        loader_loading.cancel = cancel
+        loader_loading.sourceComponent = com_loading
+    }
+    function hideLoading(){
+        loader_loading.sourceComponent = undefined
+    }
     function showSuccess(text,duration,moremsg){
         infoBar.showSuccess(text,duration,moremsg)
     }