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Flet 介绍

快速开始

安装

创建 Flet 应用

运行 Flet 应用

集成测试

在移动设备上测试

教程

计算器教程

ToDo 待办事项应用教程

即时聊天应用教程

经典接龙纸牌游戏教程

常用食谱

自适应拉伸与填充控件

颜色使用指南

字体使用指南

主题定制指南

静态资源管理

动画效果指南

平台自适应应用

键盘快捷键

拖放控件

大列表渲染

辅助功能

导航与路由

声明式路由器

控件引用 (Ref)

自定义控件

自动更新

命令式与声明式比较

异步应用

读写文件

客户端存储

会话存储

发布订阅 (PubSub)

子进程管理

多进程

子解释器

日志记录

身份验证

加密敏感数据

声明式对话框

客户端动作

Flet MCP 服务

发布 Flet 应用

发布总览

打包为 Android 应用

打包为 iOS 应用

打包为 Linux 应用

打包为 macOS 应用

打包为 Windows 应用

发布为 Web 应用

总览

动态网站

总览

托管

托管总览

Fly.io

Replit

自托管

静态网站

总览

托管

Cloudflare Pages

GitHub Pages

使用 PyInstaller 打包

扩展 Flet

用户扩展

内置扩展

保持更新

总览

迁移到 1.0

版本发布说明

破坏性变更与废弃

总览

v1.0.0

移除全部已废弃 API

iOS：方法级签名设置优先

InputBorder 改为类继承体系

v0.86.0

应用文件以只读包形式分发

Android：site-packages 压缩分发

Android：移除 x86 架构

默认内置 Python 升级到 3.14

默认编译为 .pyc

移除 pyodide_version 导出

数据通道协议升级

废弃 --clear-cache 参数

v0.85.0

移除 spacing/border 辅助函数

废弃 DragTargetEvent 坐标字段

废弃 Video 控件 API

兼容性策略

参考

参考总览

CLI 命令

flet 命令总览

flet build

flet run

flet create

flet publish

flet pack

flet test

flet debug

flet serve

flet devices

flet emulators

flet doctor

flet clean

flet mcp

FastAPI 集成

FastAPI 集成总览

FletApp

FletFastAPI

app_manager

FletOAuth

FletStaticFiles

FletUpload

FastAPI

环境变量

内置二进制包

ChartErrorRange

控件

ActionControl

AdaptiveControl

ads

BannerAd

BaseAd

ConsentManager

InterstitialAd

AlertDialog

AnimatedSwitcher

AppBar

AutoComplete

AutofillGroup

Banner

BaseControl

BasePage

BottomAppBar

BottomSheet

Button

camera

Camera

canvas

Arc

Circle

Color

Fill

Canvas

Line

Oval

Path

Points

Rect

Shadow

Shape

Card

charts

BarChart

CandlestickChart

LineChart

MatplotlibChart

MatplotlibChartWithToolbar

PieChart

PlotlyChart

RadarChart

ScatterChart

Checkbox

Chip

CircleAvatar

codeeditor

CodeEditor

colorpickers

BlockPicker

ColorPicker

HueRingPicker

Color pickers

MaterialPicker

MultipleChoiceBlockPicker

SlidePicker

Column

Container

ContextMenu

Control

cupertinoactionsheet

CupertinoActionSheet

CupertinoActionSheetAction

CupertinoActivityIndicator

CupertinoAlertDialog

CupertinoAppBar

CupertinoBottomSheet

CupertinoButton

CupertinoCheckbox

cupertinocontextmenu

CupertinoContextMenu

CupertinoContextMenuAction

CupertinoDatePicker

CupertinoDialogAction

CupertinoFilledButton

CupertinoListTile

CupertinoNavigationBar

CupertinoPicker

CupertinoRadio

CupertinoSegmentedButton

CupertinoSlider

CupertinoSlidingSegmentedButton

CupertinoSwitch

CupertinoTextField

CupertinoTimerPicker

CupertinoTintedButton

DataCell

DataColumn

DataRow

datatable

DataTable

datatable2

DataColumn2

DataRow2

概览

DatePicker

DateRangePicker

DialogControl

Dismissible

Divider

Draggable

DragTarget

dropdown

Dropdown

DropdownM2

DropdownOption

ExpansionPanel

ExpansionPanelList

ExpansionTile

FilledButton

FilledIconButton

FilledTonalButton

FilledTonalIconButton

FletApp

FloatingActionButton

FormFieldControl

GestureDetector

GridView

Hero

Icon

IconButton

Image

InteractiveViewer

KeyboardListener

LayoutControl

ListTile

ListView

lottie

Lottie

map

BaseOverlayImage

CircleLayer

CircleMarker

ImageSourceAttribution

概览

Map

MapLayer

Marker

MarkerLayer

OverlayImage

OverlayImageLayer

PolygonLayer

PolygonMarker

PolylineLayer

PolylineMarker

RichAttribution

RotatedOverlayImage

SimpleAttribution

SourceAttribution

TextSourceAttribution

TileLayer

Markdown

MenuBar

MenuItemButton

MergeSemantics

MultiView

navigationbar

NavigationBar

NavigationBarDestination

navigationdrawer

NavigationDrawer

NavigationDrawerDestination

navigationrail

NavigationRail

NavigationRailDestination

OutlinedButton

OutlinedIconButton

Page

Pagelet

PageView

Placeholder

PopupMenuButton

ProgressBar

ProgressRing

Radio

RadioGroup

RangeSlider

RawImage

ReorderableDragHandle

ReorderableListView

ResponsiveRow

rive

Rive

RotatedBox

Row

SafeArea

Screenshot

ScrollableControl

SearchBar

Segment

segmentedbutton

SegmentedButton

SelectionArea

Semantics

Service

ShaderMask

Shimmer

Slider

SnackBar

spinkit

ChasingDots

Circle

CubeGrid

DancingSquare

DoubleBounce

DualRing

FadingCircle

FadingCube

FadingFour

FadingGrid

FoldingCube

HourGlass

SpinKit

PianoWave

PouringHourGlass

PouringHourGlassRefined

Pulse

PulsingGrid

PumpingHeart

Ring

Ripple

RotatingCircle

RotatingPlain

SpinningCircle

SpinningLines

SquareCircle

ThreeBounce

ThreeInOut

WanderingCubes

Wave

WaveSpinner

WaveType

Stack

SubmenuButton

Switch

Tab

TabBar

TabBarView

tabs

Tabs

Text

TextButton

TextField

TimePicker

TransparentPointer

VerticalDivider

video

Video

View

webview

WebView

WindowDragArea

服务

Accelerometer

audio

Audio

audiorecorder

AudioRecorder

Barometer

Battery

BrowserContextMenu

Clipboard

Connectivity

FilePicker

flashlight

Flashlight

geolocator

Geolocator

Gyroscope

HapticFeedback

localauthentication

LocalAuthentication

Magnetometer

permissionhandler

PermissionHandler

ScreenBrightness

securestorage

SecureStorage

SemanticsService

ShakeDetector

Share

SharedPreferences

StoragePaths

UrlLauncher

UserAccelerometer

Wakelock

类型

AccelerometerReadingEvent

Aliases

Alignment

AndroidBuildVersion

AndroidDeviceInfo

AnimatedSwitcherTransition

Animation

AnimationCurve

AnimationStyle

AppBarTheme

AppLifecycleState

AppLifecycleStateChangeEvent

AppView

Assertiveness

auth

Auth0OAuthProvider

Authorization

AuthorizationService

AzureOAuthProvider

GitHubOAuthProvider

GoogleOAuthProvider

Group

OAuthToken

User

AutoCompleteSelectEvent

AutoCompleteSuggestion

AutoFillGroupDisposeAction

AutoFillHint

AutomaticNotchShape

Axis

Badge

BadgeTheme

BannerTheme

BarometerReadingEvent

BatteryState

BatteryStateChangeEvent

BeveledRectangleBorder

BlendMode

Blur

BlurStyle

BlurTileMode

Border

BorderRadius

BorderSide

BorderSideStrokeAlign

BorderStyle

BottomAppBarTheme

BottomSheetTheme

BoxConstraints

BoxDecoration

BoxFit

BoxShadow

BoxShape

Brightness

BrowserConfiguration

ButtonStyle

ButtonTheme

CanvasResizeEvent

CardTheme

CardVariant

CheckboxTheme

ChipTheme

CircleBorder

CircularRectangleNotchShape

ClientAction

ClipBehavior

ColorFilter

Colors

ColorScheme

component

ConnectivityChangeEvent

ConnectivityType

Context

ContextMenuDismissEvent

ContextMenuSelectEvent

ContextMenuTrigger

ContinuousRectangleBorder

control

ControlState

CopyToClipboard

create_context

CrossAxisAlignment

CupertinoButtonSize

CupertinoColors

CupertinoDatePickerDateOrder

CupertinoDatePickerMode

CupertinoIcons

CupertinoTimerPickerMode

DataChannel

DataChannelOpenEvent

DataColumnSortEvent

DataTableTheme

DatePickerEntryMode

DatePickerEntryModeChangeEvent

DatePickerMode

DatePickerTheme

DecorationImage

DeviceOrientation

DialogTheme

DismissDirection

DismissibleDismissEvent

DismissibleUpdateEvent

DividerTheme

DragEndEvent

DragStartEvent

DragTargetEvent

DragTargetLeaveEvent

DragUpdateEvent

DragWillAcceptEvent

DropdownTheme

Duration

Event

ExpansionPanelListChangeEvent

ExpansionTileTheme

FilePickerFile

FilePickerFileType

FilePickerResultEvent

FilePickerUploadEvent

FilePickerUploadFile

FilledButtonTheme

FilterQuality

FletPageDisconnectedException

FletUnimplementedPlatformException

FletUnsupportedPlatformException

Flip

FloatingActionButtonLocation

FloatingActionButtonTheme

FontWeight

GradientTileMode

GyroscopeReadingEvent

HoverEvent

IconButtonTheme

Icons

IconTheme

ImageRepeat

InputFilter

IosDeviceInfo

IosUtsname

is_route_active

KeyboardEvent

KeyboardType

KeyDownEvent

KeyRepeatEvent

KeyUpEvent

LabelPosition

LaunchMode

LinearGradient

LinuxDeviceInfo

ListTileStyle

ListTileTheme

ListTileTitleAlignment

Locale

LocaleChangeEvent

LocaleConfiguration

LocationInfo

LoginEvent

LongPressEndEvent

LongPressStartEvent

MacOsDeviceInfo

MagnetometerReadingEvent

MainAxisAlignment

Margin

MarkdownCodeTheme

MarkdownCustomCodeTheme

MarkdownExtensionSet

MarkdownStyleSheet

Matrix4

memo

MenuStyle

MouseCursor

MultiTapEvent

MultiViewAddEvent

MultiViewRemoveEvent

NavigationBarLabelBehavior

NavigationBarTheme

NavigationDrawerTheme

NavigationRailLabelType

NavigationRailTheme

NoInputBorder

Observable

observable

Offset

on_mounted

OnReorderEvent

OnScrollEvent

on_unmounted

on_updated

OpenUrl

Orientation

OutlinedButtonTheme

OutlineInputBorder

OverlayVisibilityMode

Padding

PageMediaData

PagePlatform

PageResizeEvent

PageTransitionsTheme

PageTransitionTheme

Paint

PaintingStyle

PaintLinearGradient

PaintRadialGradient

PaintSweepGradient

PickFiles

PlatformBrightnessChangeEvent

PointerDeviceType

PointerEvent

PointMode

PopupMenuPosition

PopupMenuTheme

ProgressIndicatorTheme

pubsub

PubSubClient

PubSubHub

RadialGradient

RadioTheme

Rect

Ref

ResponsiveRowBreakpoint

Rotate

RoundedRectangleBorder

Route

RouteChangeEvent

RouteUrlStrategy

run

run_async

Scale

ScaleEndEvent

ScaleStartEvent

ScaleUpdateEvent

ScreenBrightnessChangeEvent

Scrollbar

ScrollbarOrientation

ScrollBarTheme

ScrollDirection

ScrollEvent

ScrollKey

ScrollMode

ScrollType

SearchBarTheme

SearchViewTheme

SegmentedButtonTheme

SensorErrorEvent

ShapeBorder

ShareCupertinoActivityType

ShareFile

ShareResult

ShareResultStatus

ShareText

Size

SliderInteraction

SliderTheme

SnackBarBehavior

SnackBarTheme

StackFit

StadiumBorder

StrokeCap

StrokeJoin

StrutStyle

SweepGradient

SwitchTheme

SystemOverlayStyle

TabAlignment

TabBarHoverEvent

TabBarIndicatorSize

TabBarTheme

TabIndicatorAnimation

TapEvent

TemplateRoute

testing

DisposalMode

Finder

FletTestApp

Tester

TextAffinity

TextAlign

TextBaseline

TextButtonTheme

TextCapitalization

TextDecoration

TextDecorationStyle

TextOverflow

TextSelection

TextSelectionChangeCause

TextSelectionChangeEvent

TextSpan

TextStyle

TextTheme

TextThemeStyle

ThemeMode

TileAffinity

TimePickerEntryMode

TimePickerEntryModeChangeEvent

TimePickerHourFormat

TimePickerTheme

Tooltip

TooltipTheme

TooltipTriggerMode

Transform

UnderlineInputBorder

UnderlineTabIndicator

Url

UrlTarget

use_route_loader_data

use_route_location

use_route_outlet

use_route_params

use_view_path

use_callback

use_context

use_effect

use_memo

UserAccelerometerReadingEvent

use_ref

use_state

value

ValueKey

VerticalAlignment

ViewPopEvent

VisualDensity

WebBrowserName

WebDeviceInfo

WebRenderer

WebViewConfiguration

Window

WindowEvent

WindowEventType

WindowResizeEdge

WindowsDeviceInfo

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