UWebView class

In-app browser widget with top bar, progress, desktop mode, zoom, share and JavaScript channels; all 6 platforms (web: iframe, some sites refuse it). UWebView(initialUrl: "https://sinamn75.com")

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• UWebView

Available extensions

• WidgetsExtension

Constructors

UWebView({required String initialUrl, Key? key, Map<String, String>? initialHeaders, Color? backgroundColor, UOnUrlChanged? onUrlChanged, void onPageStarted(String url)?, void onPageFinished(String url)?, void onWebResourceError(WebResourceError error)?, void onWebViewCreated(WebViewController controller)?, bool onNavigationRequest(String url)?, bool showTopBar = false, bool showUrlBar = false, bool showBackButton = false, bool showForwardButton = false, bool showRefreshButton = false, bool showHomeButton = false, bool showProgressBar = false, bool showMoreMenu = false, bool showShareAction = false, bool showOpenInBrowserAction = false, bool showCopyLinkAction = false, bool showDesktopModeAction = false, bool showZoomActions = false, void onShareRequested(String url)?, void onOpenInBrowserRequested(String url)?, bool enableJavaScript = true, bool enablePinchZoom = false, bool enableJavaScriptDialogs = true, String? userAgent, String desktopUserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 " "(KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36", bool restrictToAllowedHosts = false, List<String> allowedHosts = const <String>[], Future<void> onPermissionRequest(WebViewPermissionRequest request)?, bool autoGrantMediaPermissions = true, Map<String, void Function(String message)>? javaScriptChannels, Widget errorBuilder(BuildContext context, String message, VoidCallback retry)?, Widget? loadingIndicator})

const

Properties

allowedHosts → List<String>

Hosts the page may navigate to.

final

autoGrantMediaPermissions → bool

Allows camera/microphone requests from the page.

final

backgroundColor → Color?

Background color.

final

desktopUserAgent → String

User-Agent used in desktop mode.

final

enableJavaScript → bool

Runs JavaScript.

final

enableJavaScriptDialogs → bool

Shows alert/confirm/prompt dialogs.

final

enablePinchZoom → bool

Allows pinch zoom.

final

errorBuilder → Widget Function(BuildContext context, String message, VoidCallback retry)?

Shown when loading fails.

final

hashCode → int

The hash code for this object.

no setter, inherited

initialHeaders → Map<String, String>?

HTTP headers for the first request.

final

initialUrl → String

First page to load.

final

javaScriptChannels → Map<String, void Function(String message)>?

Dart functions the page can call: window.name.postMessage("…").

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

loadingIndicator → Widget?

Shown while loading.

final

onNavigationRequest → bool Function(String url)?

Return false to block a navigation.

final

onOpenInBrowserRequested → void Function(String url)?

Replaces the open-in-browser action.

final

onPageFinished → void Function(String url)?

Called when a page finished loading.

final

onPageStarted → void Function(String url)?

Called when a page starts loading.

final

onPermissionRequest → Future<void> Function(WebViewPermissionRequest request)?

Decides camera/mic permission requests yourself.

final

onShareRequested → void Function(String url)?

Replaces the share action.

final

onUrlChanged → UOnUrlChanged?

Called whenever the page URL changes (e.g. to catch a payment callback).

final

onWebResourceError → void Function(WebResourceError error)?

Called on a load error.

final

onWebViewCreated → void Function(WebViewController controller)?

Gives you the WebViewController.

final

restrictToAllowedHosts → bool

Blocks navigation outside allowedHosts.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

showBackButton → bool

Shows a back button.

final

showCopyLinkAction → bool

Menu: copy link.

final

showDesktopModeAction → bool

Menu: desktop site.

final

showForwardButton → bool

Shows the forward button.

final

showHomeButton → bool

Shows the home button.

final

showMoreMenu → bool

Shows the ⋮ menu.

final

showOpenInBrowserAction → bool

Menu: open in browser.

final

showProgressBar → bool

Shows the loading bar.

final

showRefreshButton → bool

Shows the refresh button.

final

showShareAction → bool

Menu: share link.

final

showTopBar → bool

Shows the browser bar.

final

showUrlBar → bool

Shows the address field.

final

showZoomActions → bool

Menu: zoom in/out.

final

userAgent → String?

Custom User-Agent.

final

Methods

alignAtBottomCenter({Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned to the bottom center.

alignAtBottomLeft({Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned to the bottom left.

alignAtBottomRight({Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned to the bottom right.

alignAtCenter({Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Centered.

alignAtCenterLeft({Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned to the center left.

alignAtCenterRight({Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned to the center right.

alignAtLERP(Alignment a, Alignment b, double t, {Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned between a and b at t (0 = a, 1 = b).

alignAtTopCenter({Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned to the top center.

alignAtTopLeft({Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned to the top left.

alignAtTopRight({Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned to the top right.

alignXY(double x, double y, {Key? key, double? heightFactor, double? widthFactor}) → Align

Available on Widget, provided by the WidgetsExtension extension

Aligned at x, y from -1 to 1. child.alignXY(0, -0.5)

card({Color? backgroundColor, double? elevation, EdgeInsetsGeometry? margin}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Material Card around it. child.card(elevation: 2)

center() → Widget

Available on Widget, provided by the WidgetsExtension extension

Centered in the available space. child.center()

chip({required Color backgroundColor, double? width, double? height, Alignment? alignment, double borderWidth = 1, double radius = 12, Color borderColor = Colors.transparent, EdgeInsets padding = const EdgeInsets.symmetric(horizontal: 8, vertical: 6), EdgeInsetsGeometry? margin, BoxConstraints? constraints}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Pill-shaped colored box, e.g. for tags. Text("New").chip(backgroundColor: Colors.green.shade100)

clipCircle() → Widget

Available on Widget, provided by the WidgetsExtension extension

Clips to a circle. avatar.clipCircle()

clipRadius(double radius) → Widget

Available on Widget, provided by the WidgetsExtension extension

Rounds the corners by clipping. image.clipRadius(12)

container({double? width, double? height, Alignment? alignment, Color? backgroundColor, double borderWidth = 1, double radius = 1, Color borderColor = Colors.transparent, EdgeInsetsGeometry? padding, EdgeInsetsGeometry? margin, BoxConstraints? constraints}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Box with background, border and rounded corners. child.container(backgroundColor: Colors.white, radius: 12)

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → State<UWebView>

Creates the mutable state for this widget at a given location in the tree.

override

debugDescribeChildren() → List<DiagnosticsNode>

Returns a list of DiagnosticsNode objects describing this node's children.

inherited

debugFillProperties(DiagnosticPropertiesBuilder properties) → void

Add additional properties associated with the node.

inherited

disabled(bool disabled, {double opacity = 0.5}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Greys out and blocks taps when disabled. form.disabled(isSaving)

expanded({int flex = 1}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Takes the remaining space in a Row/Column. child.expanded()

fadeSlideIn({int milliseconds = 1000, double offset = 24}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Fades and slides up once when first shown. card.fadeSlideIn()

fit({Alignment alignment = Alignment.center}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Shrinks to fit the space (never grows). Text(long).fit()

flexible({int flex = 1}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Can shrink in a Row/Column but does not have to fill. child.flexible()

form(GlobalKey<FormState> key) → Widget

Available on Widget, provided by the WidgetsExtension extension

Wraps in a Form with key. column.form(formKey)

hero(Object tag) → Widget

Available on Widget, provided by the WidgetsExtension extension

Hero animation between pages with the same tag. image.hero("product-$id")

ltr() → Widget

Available on Widget, provided by the WidgetsExtension extension

Forces left-to-right (numbers, phone numbers, code). Text(phone).ltr()

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onDoubleTap(GestureTapCallback? onPressed) → Widget

Available on Widget, provided by the WidgetsExtension extension

Double tap. image.onDoubleTap(like)

onLongPress(GestureTapCallback? onPressed) → Widget

Available on Widget, provided by the WidgetsExtension extension

Long press. child.onLongPress(showOptions)

onPress(VoidCallback onTap, {double pressedScale = 0.9, Duration duration = const Duration(milliseconds: 120)}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Tap with a press-down shrink animation. card.onPress(open)

onTap(GestureTapCallback? onPressed) → Widget

Available on Widget, provided by the WidgetsExtension extension

Tap without ripple. child.onTap(open)

onTapInk(GestureTapCallback? onPressed) → Widget

Available on Widget, provided by the WidgetsExtension extension

Tap with a Material ripple (needs a Material ancestor). tile.onTapInk(open)

opacity(double opacity) → Widget

Available on Widget, provided by the WidgetsExtension extension

Makes it see-through (0 = invisible, 1 = solid). child.opacity(0.5)

pAll(double padding) → Widget

Available on Widget, provided by the WidgetsExtension extension

Same padding on every side. child.pAll(16)

pLTRB(double left, double top, double right, double bottom) → Widget

Available on Widget, provided by the WidgetsExtension extension

Padding left, top, right, bottom. child.pLTRB(8, 4, 8, 4)

pOnly({double left = 0.0, double top = 0.0, double right = 0.0, double bottom = 0.0}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Padding on chosen sides. child.pOnly(top: 8)

position({double? left, double? top, double? right, double? bottom, double? width, double? height}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Positioned inside a Stack. badge.position(top: 0, right: 0)

pSymmetric({double horizontal = 0.0, double vertical = 0.0}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Horizontal and/or vertical padding. child.pSymmetric(horizontal: 16)

rotate(double scale) → Widget

Available on Widget, provided by the WidgetsExtension extension

Rotates by scale radians. arrow.rotate(pi / 2)

rtl() → Widget

Available on Widget, provided by the WidgetsExtension extension

Forces right-to-left. child.rtl()

safeArea() → Widget

Available on Widget, provided by the WidgetsExtension extension

Keeps it out of the notch and system bars. body.safeArea()

scale(double scale) → Widget

Available on Widget, provided by the WidgetsExtension extension

Scales the paint (layout size unchanged). icon.scale(1.5)

scrollable({Axis scrollDirection = Axis.vertical}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Makes it scroll when it does not fit. column.scrollable()

showMenus(List<PopupMenuEntry<int>> items) → Widget

Available on Widget, provided by the WidgetsExtension extension

Shows a popup menu where the user taps; items return their int value. child.showMenus([PopupMenuItem(value: 1, child: Text("Edit"))])

sized({double? width, double? height}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Fixed width and/or height. logo.sized(width: 48, height: 48)

skeleton(bool loading) → Widget

Available on Widget, provided by the WidgetsExtension extension

Draws a shimmering loading placeholder in its shape while loading. Text("Name").skeleton(isLoading)

sliver() → Widget

Available on Widget, provided by the WidgetsExtension extension

Lets a normal widget sit inside a CustomScrollView. header.sliver()

toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode

Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.

inherited

tooltip(String message) → Widget

Available on Widget, provided by the WidgetsExtension extension

Shows message on long press / mouse hover. icon.tooltip("Delete")

toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String

A string representation of this object.

inherited

toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String

Returns a string representation of this node and its descendants.

inherited

toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a one-line detailed description of the object.

inherited

toStringShort() → String

A short, textual description of this widget.

inherited

translate(Offset offset) → Widget

Available on Widget, provided by the WidgetsExtension extension

Moves the paint by offset (layout unchanged). child.translate(const Offset(0, -4))

visible(bool visible, {bool maintainSize = false}) → Widget

Available on Widget, provided by the WidgetsExtension extension

Shows it only when visible; with maintainSize it keeps its space. saveButton.visible(isDirty)

Operators

operator ==(Object other) → bool

The equality operator.

inherited