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Allow Hybrid Composition fallback for Android platform views (#109161)

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360
packages/flutter/lib/src/services/platform_views.dart
View file

@ -107,6 +107,10 @@ class PlatformViewsService {
/// The `id, `viewType, and `layoutDirection` parameters must not be null.
/// If `creationParams` is non null then `creationParamsCodec` must not be null.
/// {@endtemplate}
///
/// This attempts to use the newest and most efficient platform view
/// implementation when possible. In cases where that is not supported, it
/// falls back to using Virtual Display.
static AndroidViewController initAndroidView({
required int id,
required String viewType,
@ -134,9 +138,10 @@ class PlatformViewsService {
/// {@macro flutter.services.PlatformViewsService.initAndroidView}
///
/// Alias for [initAndroidView].
/// This factory is provided for backward compatibility purposes.
/// In the future, this method will be deprecated.
/// This attempts to use the newest and most efficient platform view
/// implementation when possible. In cases where that is not supported, it
/// falls back to using Hybrid Composition, which is the mode used by
/// [initExpensiveAndroidView].
static SurfaceAndroidViewController initSurfaceAndroidView({
required int id,
required String viewType,
@ -163,11 +168,12 @@ class PlatformViewsService {
/// {@macro flutter.services.PlatformViewsService.initAndroidView}
///
/// When this factory is used, the Android view and Flutter widgets are composed at the
/// Android view hierarchy level.
/// This is only useful if the view is a Android SurfaceView. However, using this method
/// has a performance cost on devices that run below 10, or underpowered devices.
/// In most situations, you should use [initAndroidView].
/// When this factory is used, the Android view and Flutter widgets are
/// composed at the Android view hierarchy level.
///
/// Using this method has a performance cost on devices running Android 9 or
/// earlier, or on underpowered devices. In most situations, you should use
/// [initAndroidView] or [initSurfaceAndroidView] instead.
static ExpensiveAndroidViewController initExpensiveAndroidView({
required int id,
required String viewType,
@ -668,6 +674,12 @@ class _AndroidMotionEventConverter {
event is! PointerDownEvent && event is! PointerUpEvent;
}
class _CreationParams {
const _CreationParams(this.data, this.codec);
final dynamic data;
final MessageCodec<dynamic> codec;
}
/// Controls an Android view that is composed using a GL texture.
///
/// Typically created with [PlatformViewsService.initAndroidView].
@ -685,8 +697,7 @@ abstract class AndroidViewController extends PlatformViewController {
assert(creationParams == null || creationParamsCodec != null),
_viewType = viewType,
_layoutDirection = layoutDirection,
_creationParams = creationParams,
_creationParamsCodec = creationParamsCodec;
_creationParams = creationParams == null ? null : _CreationParams(creationParams, creationParamsCodec!);
/// Action code for when a primary pointer touched the screen.
///
@ -738,9 +749,7 @@ abstract class AndroidViewController extends PlatformViewController {
_AndroidViewState _state = _AndroidViewState.waitingForSize;
final dynamic _creationParams;
final MessageCodec<dynamic>? _creationParamsCodec;
final _CreationParams? _creationParams;
final List<PlatformViewCreatedCallback> _platformViewCreatedCallbacks =
<PlatformViewCreatedCallback>[];
@ -833,10 +842,17 @@ abstract class AndroidViewController extends PlatformViewController {
/// Returns the texture entry id that the Android view is rendering into.
///
/// Returns null if the Android view has not been successfully created, or if it has been
/// disposed.
/// Returns null if the Android view has not been successfully created, if it has been
/// disposed, or if the implementation does not use textures.
int? get textureId;
/// True if the view requires native view composition rather than using a
/// texture to render.
///
/// This value may change during [create], but will not change after that
/// call's future has completed.
bool get requiresViewComposition => false;
/// Sends an Android [MotionEvent](https://developer.android.com/reference/android/view/MotionEvent)
/// to the view.
///
@ -979,7 +995,7 @@ abstract class AndroidViewController extends PlatformViewController {
/// Controls an Android view that is composed using a GL texture.
/// This controller is created from the [PlatformViewsService.initSurfaceAndroidView] factory,
/// and is defined for backward compatibility.
class SurfaceAndroidViewController extends TextureAndroidViewController{
class SurfaceAndroidViewController extends AndroidViewController {
SurfaceAndroidViewController._({
required super.viewId,
required super.viewType,
@ -987,6 +1003,60 @@ class SurfaceAndroidViewController extends TextureAndroidViewController{
super.creationParams,
super.creationParamsCodec,
}) : super._();
// By default, assume the implementation will be texture-based.
_AndroidViewControllerInternals _internals = _TextureAndroidViewControllerInternals();
@override
bool get _createRequiresSize => true;
@override
Future<bool> _sendCreateMessage({required Size size}) async {
assert(!size.isEmpty, 'trying to create $TextureAndroidViewController without setting a valid size.');
final dynamic response = await _AndroidViewControllerInternals.sendCreateMessage(
viewId: viewId,
viewType: _viewType,
hybrid: false,
hybridFallback: true,
layoutDirection: _layoutDirection,
creationParams: _creationParams,
size: size,
);
if (response is int) {
(_internals as _TextureAndroidViewControllerInternals).textureId = response;
} else {
// A null response indicates fallback to Hybrid Composition, so swap out
// the implementation.
_internals = _HybridAndroidViewControllerInternals();
}
return true;
}
@override
int? get textureId {
return _internals.textureId;
}
@override
bool get requiresViewComposition {
return _internals.requiresViewComposition;
}
@override
Future<void> _sendDisposeMessage() {
return _internals.sendDisposeMessage(viewId: viewId);
}
@override
Future<Size> _sendResizeMessage(Size size) {
return _internals.setSize(size, viewId: viewId, viewState: _state);
}
@override
Future<void> setOffset(Offset off) {
return _internals.setOffset(off, viewId: viewId, viewState: _state);
}
}
/// Controls an Android view that is composed using the Android view hierarchy.
@ -1000,50 +1070,45 @@ class ExpensiveAndroidViewController extends AndroidViewController {
super.creationParamsCodec,
}) : super._();
final _AndroidViewControllerInternals _internals = _HybridAndroidViewControllerInternals();
@override
bool get _createRequiresSize => false;
@override
Future<void> _sendCreateMessage({required Size? size}) async {
final Map<String, dynamic> args = <String, dynamic>{
'id': viewId,
'viewType': _viewType,
'direction': AndroidViewController._getAndroidDirection(_layoutDirection),
'hybrid': true,
};
if (_creationParams != null) {
final ByteData paramsByteData =
_creationParamsCodec!.encodeMessage(_creationParams)!;
args['params'] = Uint8List.view(
paramsByteData.buffer,
0,
paramsByteData.lengthInBytes,
);
}
await SystemChannels.platform_views.invokeMethod<void>('create', args);
await _AndroidViewControllerInternals.sendCreateMessage(
viewId: viewId,
viewType: _viewType,
hybrid: true,
layoutDirection: _layoutDirection,
creationParams: _creationParams,
);
}
@override
int get textureId {
throw UnimplementedError('Not supported for $SurfaceAndroidViewController.');
int? get textureId {
return _internals.textureId;
}
@override
bool get requiresViewComposition {
return _internals.requiresViewComposition;
}
@override
Future<void> _sendDisposeMessage() {
return SystemChannels.platform_views.invokeMethod<void>('dispose', <String, dynamic>{
'id': viewId,
'hybrid': true,
});
return _internals.sendDisposeMessage(viewId: viewId);
}
@override
Future<Size> _sendResizeMessage(Size size) {
throw UnimplementedError('Not supported for $SurfaceAndroidViewController.');
return _internals.setSize(size, viewId: viewId, viewState: _state);
}
@override
Future<void> setOffset(Offset off) {
throw UnimplementedError('Not supported for $SurfaceAndroidViewController.');
return _internals.setOffset(off, viewId: viewId, viewState: _state);
}
}
@ -1062,23 +1127,132 @@ class TextureAndroidViewController extends AndroidViewController {
super.creationParamsCodec,
}) : super._();
/// The texture entry id into which the Android view is rendered.
int? _textureId;
final _TextureAndroidViewControllerInternals _internals = _TextureAndroidViewControllerInternals();
/// Returns the texture entry id that the Android view is rendering into.
///
/// Returns null if the Android view has not been successfully created, or if it has been
/// disposed.
@override
int? get textureId => _textureId;
bool get _createRequiresSize => true;
@override
Future<void> _sendCreateMessage({required Size size}) async {
assert(!size.isEmpty, 'trying to create $TextureAndroidViewController without setting a valid size.');
_internals.textureId = await _AndroidViewControllerInternals.sendCreateMessage(
viewId: viewId,
viewType: _viewType,
hybrid: false,
layoutDirection: _layoutDirection,
creationParams: _creationParams,
size: size,
) as int;
}
@override
int? get textureId {
return _internals.textureId;
}
@override
bool get requiresViewComposition {
return _internals.requiresViewComposition;
}
@override
Future<void> _sendDisposeMessage() {
return _internals.sendDisposeMessage(viewId: viewId);
}
@override
Future<Size> _sendResizeMessage(Size size) {
return _internals.setSize(size, viewId: viewId, viewState: _state);
}
@override
Future<void> setOffset(Offset off) {
return _internals.setOffset(off, viewId: viewId, viewState: _state);
}
}
// The base class for an implementation of AndroidViewController.
//
// Subclasses should correspond to different rendering modes for platform
// views, and match different mode logic on the engine side.
abstract class _AndroidViewControllerInternals {
// Sends a create message with the given parameters, and returns the result
// if any.
//
// This uses a dynamic return because depending on the mode that is selected
// on the native side, the return type is different. Callers should cast
// depending on the possible return types for their arguments.
static Future<dynamic> sendCreateMessage({
required int viewId,
required String viewType,
required TextDirection layoutDirection,
required bool hybrid,
bool hybridFallback = false,
_CreationParams? creationParams,
Size? size}) {
final Map<String, dynamic> args = <String, dynamic>{
'id': viewId,
'viewType': viewType,
'direction': AndroidViewController._getAndroidDirection(layoutDirection),
if (hybrid == true) 'hybrid': hybrid,
if (size != null) 'width': size.width,
if (size != null) 'height': size.height,
if (hybridFallback == true) 'hybridFallback': hybridFallback,
};
if (creationParams != null) {
final ByteData paramsByteData = creationParams.codec.encodeMessage(creationParams.data)!;
args['params'] = Uint8List.view(
paramsByteData.buffer,
0,
paramsByteData.lengthInBytes,
);
}
return SystemChannels.platform_views.invokeMethod<dynamic>('create', args);
}
int? get textureId;
bool get requiresViewComposition;
Future<Size> setSize(
Size size, {
required int viewId,
required _AndroidViewState viewState,
});
Future<void> setOffset(
Offset offset, {
required int viewId,
required _AndroidViewState viewState,
});
Future<void> sendDisposeMessage({required int viewId});
}
// An AndroidViewController implementation for views whose contents are
// displayed via a texture rather than directly in a native view.
//
// This is used for both Virtual Display and Texture Layer Hybrid Composition.
class _TextureAndroidViewControllerInternals extends _AndroidViewControllerInternals {
_TextureAndroidViewControllerInternals();
/// The current offset of the platform view.
Offset _off = Offset.zero;
Offset _offset = Offset.zero;
@override
Future<Size> _sendResizeMessage(Size size) async {
assert(_state != _AndroidViewState.waitingForSize, 'Android view must have an initial size. View id: $viewId');
assert(size != null);
int? textureId;
@override
bool get requiresViewComposition => false;
@override
Future<Size> setSize(
Size size, {
required int viewId,
required _AndroidViewState viewState,
}) async {
assert(viewState != _AndroidViewState.waitingForSize, 'Android view must have an initial size. View id: $viewId');
assert(!size.isEmpty);
final Map<Object?, Object?>? meta = await SystemChannels.platform_views.invokeMapMethod<Object?, Object?>(
@ -1096,58 +1270,36 @@ class TextureAndroidViewController extends AndroidViewController {
}
@override
Future<void> setOffset(Offset off) async {
if (off == _off) {
Future<void> setOffset(
Offset offset, {
required int viewId,
required _AndroidViewState viewState,
}) async {
if (offset == _offset) {
return;
}
// Don't set the offset unless the Android view has been created.
// The implementation of this method channel throws if the Android view for this viewId
// isn't addressable.
if (_state != _AndroidViewState.created) {
if (viewState != _AndroidViewState.created) {
return;
}
_off = off;
_offset = offset;
await SystemChannels.platform_views.invokeMethod<void>(
'offset',
<String, dynamic>{
'id': viewId,
'top': off.dy,
'left': off.dx,
'top': offset.dy,
'left': offset.dx,
},
);
}
@override
bool get _createRequiresSize => true;
@override
// Size is non-nullable due to _createRequiresSize returning true.
Future<void> _sendCreateMessage({required Size size}) async {
assert(!size.isEmpty, 'trying to create $TextureAndroidViewController without setting a valid size.');
final Map<String, dynamic> args = <String, dynamic>{
'id': viewId,
'viewType': _viewType,
'width': size.width,
'height': size.height,
'direction': AndroidViewController._getAndroidDirection(_layoutDirection),
};
if (_creationParams != null) {
final ByteData paramsByteData = _creationParamsCodec!.encodeMessage(_creationParams)!;
args['params'] = Uint8List.view(
paramsByteData.buffer,
0,
paramsByteData.lengthInBytes,
);
}
_textureId = await SystemChannels.platform_views.invokeMethod<int>('create', args);
}
@override
Future<void> _sendDisposeMessage() {
Future<void> sendDisposeMessage({required int viewId}) {
return SystemChannels
.platform_views.invokeMethod<void>('dispose', <String, dynamic>{
'id': viewId,
@ -1156,6 +1308,46 @@ class TextureAndroidViewController extends AndroidViewController {
}
}
// An AndroidViewController implementation for views whose contents are
// displayed directly in a native view.
//
// This is used for Hybrid Composition.
class _HybridAndroidViewControllerInternals extends _AndroidViewControllerInternals {
@override
int get textureId {
throw UnimplementedError('Not supported for hybrid composition.');
}
@override
bool get requiresViewComposition => true;
@override
Future<Size> setSize(
Size size, {
required int viewId,
required _AndroidViewState viewState,
}) {
throw UnimplementedError('Not supported for hybrid composition.');
}
@override
Future<void> setOffset(
Offset offset, {
required int viewId,
required _AndroidViewState viewState,
}) {
throw UnimplementedError('Not supported for hybrid composition.');
}
@override
Future<void> sendDisposeMessage({required int viewId}) {
return SystemChannels.platform_views.invokeMethod<void>('dispose', <String, dynamic>{
'id': viewId,
'hybrid': true,
});
}
}
/// Controls an iOS UIView.
///
/// Typically created with [PlatformViewsService.initUiKitView].

101
packages/flutter/lib/src/widgets/platform_view.dart
View file

@ -1070,10 +1070,79 @@ class PlatformViewSurface extends LeafRenderObjectWidget {
///
/// * [AndroidView] which embeds an Android platform view in the widget hierarchy.
/// * [UiKitView] which embeds an iOS platform view in the widget hierarchy.
class AndroidViewSurface extends PlatformViewSurface {
class AndroidViewSurface extends StatefulWidget {
/// Construct an `AndroidPlatformViewSurface`.
const AndroidViewSurface({
super.key,
required this.controller,
required this.hitTestBehavior,
required this.gestureRecognizers,
}) : assert(controller != null),
assert(hitTestBehavior != null),
assert(gestureRecognizers != null);
/// The controller for the platform view integrated by this [AndroidViewSurface].
///
/// See [PlatformViewSurface.controller] for details.
final AndroidViewController controller;
/// Which gestures should be forwarded to the PlatformView.
///
/// See [PlatformViewSurface.gestureRecognizers] for details.
final Set<Factory<OneSequenceGestureRecognizer>> gestureRecognizers;
/// {@macro flutter.widgets.AndroidView.hitTestBehavior}
final PlatformViewHitTestBehavior hitTestBehavior;
@override
State<StatefulWidget> createState() {
return _AndroidViewSurfaceState();
}
}
class _AndroidViewSurfaceState extends State<AndroidViewSurface> {
@override
void initState() {
super.initState();
if (!widget.controller.isCreated) {
// Schedule a rebuild once creation is complete and the final dislay
// type is known.
widget.controller.addOnPlatformViewCreatedListener(_onPlatformViewCreated);
}
}
@override
void dispose() {
widget.controller.removeOnPlatformViewCreatedListener(_onPlatformViewCreated);
super.dispose();
}
@override
Widget build(BuildContext context) {
if (widget.controller.requiresViewComposition) {
return _PlatformLayerBasedAndroidViewSurface(
controller: widget.controller,
hitTestBehavior: widget.hitTestBehavior,
gestureRecognizers: widget.gestureRecognizers,
);
} else {
return _TextureBasedAndroidViewSurface(
controller: widget.controller,
hitTestBehavior: widget.hitTestBehavior,
gestureRecognizers: widget.gestureRecognizers,
);
}
}
void _onPlatformViewCreated(int _) {
// Trigger a re-build based on the current controller state.
setState(() {});
}
}
// Displays an Android platform view via GL texture.
class _TextureBasedAndroidViewSurface extends PlatformViewSurface {
const _TextureBasedAndroidViewSurface({
required AndroidViewController super.controller,
required super.hitTestBehavior,
required super.gestureRecognizers,
@ -1084,16 +1153,6 @@ class AndroidViewSurface extends PlatformViewSurface {
@override
RenderObject createRenderObject(BuildContext context) {
final AndroidViewController viewController = controller as AndroidViewController;
// Compose using the Android view hierarchy.
// This is useful when embedding a SurfaceView into a Flutter app.
// SurfaceViews cannot be composed using GL textures.
if (viewController is ExpensiveAndroidViewController) {
final PlatformViewRenderBox renderBox =
super.createRenderObject(context) as PlatformViewRenderBox;
viewController.pointTransformer =
(Offset position) => renderBox.globalToLocal(position);
return renderBox;
}
// Use GL texture based composition.
// App should use GL texture unless they require to embed a SurfaceView.
final RenderAndroidView renderBox = RenderAndroidView(
@ -1107,6 +1166,26 @@ class AndroidViewSurface extends PlatformViewSurface {
}
}
class _PlatformLayerBasedAndroidViewSurface extends PlatformViewSurface {
const _PlatformLayerBasedAndroidViewSurface({
required AndroidViewController super.controller,
required super.hitTestBehavior,
required super.gestureRecognizers,
}) : assert(controller != null),
assert(hitTestBehavior != null),
assert(gestureRecognizers != null);
@override
RenderObject createRenderObject(BuildContext context) {
final AndroidViewController viewController = controller as AndroidViewController;
final PlatformViewRenderBox renderBox =
super.createRenderObject(context) as PlatformViewRenderBox;
viewController.pointTransformer =
(Offset position) => renderBox.globalToLocal(position);
return renderBox;
}
}
/// A callback used to notify the size of the platform view placeholder.
/// This size is the initial size of the platform view.
typedef _OnLayoutCallback = void Function(Size size);

55
packages/flutter/test/services/fake_platform_views.dart
View file

@ -45,7 +45,11 @@ class FakePlatformViewController extends PlatformViewController {
}
class FakeAndroidViewController implements AndroidViewController {
FakeAndroidViewController(this.viewId, {this.requiresSize = false});
FakeAndroidViewController(
this.viewId, {
this.requiresSize = false,
this.requiresViewComposition = false,
});
bool disposed = false;
bool focusCleared = false;
@ -56,6 +60,8 @@ class FakeAndroidViewController implements AndroidViewController {
bool _createCalledSuccessfully = false;
final List<PlatformViewCreatedCallback> _createdCallbacks = <PlatformViewCreatedCallback>[];
/// Events that are dispatched.
List<PointerEvent> dispatchedPointerEvents = <PointerEvent>[];
@ -106,10 +112,13 @@ class FakeAndroidViewController implements AndroidViewController {
@override
void addOnPlatformViewCreatedListener(PlatformViewCreatedCallback listener) {
created = true;
createdCallbacks.add(listener);
}
@override
void removeOnPlatformViewCreatedListener(PlatformViewCreatedCallback listener) {}
void removeOnPlatformViewCreatedListener(PlatformViewCreatedCallback listener) {
createdCallbacks.remove(listener);
}
@override
Future<void> sendMotionEvent(AndroidMotionEvent event) {
@ -128,7 +137,10 @@ class FakeAndroidViewController implements AndroidViewController {
}
@override
List<PlatformViewCreatedCallback> get createdCallbacks => <PlatformViewCreatedCallback>[];
List<PlatformViewCreatedCallback> get createdCallbacks => _createdCallbacks;
@override
bool requiresViewComposition;
}
class FakeAndroidPlatformViewsController {
@ -153,6 +165,11 @@ class FakeAndroidPlatformViewsController {
Map<int, Offset> offsets = <int, Offset>{};
/// True if Texture Layer Hybrid Composition mode should be enabled.
///
/// When false, `create` will simulate the engine's fallback mode.
bool allowTextureLayerMode = true;
void registerViewType(String viewType) {
_registeredViewTypes.add(viewType);
}
@ -192,6 +209,7 @@ class FakeAndroidPlatformViewsController {
final double? height = args['height'] as double?;
final int layoutDirection = args['direction'] as int;
final bool? hybrid = args['hybrid'] as bool?;
final bool? hybridFallback = args['hybridFallback'] as bool?;
final Uint8List? creationParams = args['params'] as Uint8List?;
if (_views.containsKey(id)) {
@ -215,11 +233,21 @@ class FakeAndroidPlatformViewsController {
_views[id] = FakeAndroidPlatformView(id, viewType,
width != null && height != null ? Size(width, height) : null,
layoutDirection,
hybrid,
creationParams,
hybrid: hybrid,
hybridFallback: hybridFallback,
creationParams: creationParams,
);
// Return a hybrid result (null rather than a texture ID) if:
final bool hybridResult =
// hybrid was explicitly requested, or
(hybrid ?? false) ||
// hybrid fallback was requested and simulated.
(!allowTextureLayerMode && (hybridFallback ?? false));
if (hybridResult) {
return Future<void>.value();
}
final int textureId = _textureCounter++;
return Future<int>.sync(() => textureId);
return Future<int>.value(textureId);
}
Future<dynamic> _dispose(MethodCall call) {
@ -506,7 +534,8 @@ class FakeHtmlPlatformViewsController {
@immutable
class FakeAndroidPlatformView {
const FakeAndroidPlatformView(this.id, this.type, this.size, this.layoutDirection, this.hybrid, [this.creationParams]);
const FakeAndroidPlatformView(this.id, this.type, this.size, this.layoutDirection,
{this.hybrid, this.hybridFallback, this.creationParams});
final int id;
final String type;
@ -514,14 +543,16 @@ class FakeAndroidPlatformView {
final Size? size;
final int layoutDirection;
final bool? hybrid;
final bool? hybridFallback;
FakeAndroidPlatformView copyWith({Size? size, int? layoutDirection}) => FakeAndroidPlatformView(
id,
type,
size ?? this.size,
layoutDirection ?? this.layoutDirection,
hybrid,
creationParams,
hybrid: hybrid,
hybridFallback: hybridFallback,
creationParams: creationParams,
);
@override
@ -535,6 +566,7 @@ class FakeAndroidPlatformView {
&& listEquals<int>(other.creationParams, creationParams)
&& other.size == size
&& other.hybrid == hybrid
&& other.hybridFallback == hybridFallback
&& other.layoutDirection == layoutDirection;
}
@ -546,11 +578,14 @@ class FakeAndroidPlatformView {
size,
layoutDirection,
hybrid,
hybridFallback,
);
@override
String toString() {
return 'FakeAndroidPlatformView(id: $id, type: $type, size: $size, layoutDirection: $layoutDirection, hybrid: $hybrid, creationParams: $creationParams)';
return 'FakeAndroidPlatformView(id: $id, type: $type, size: $size, '
'layoutDirection: $layoutDirection, hybrid: $hybrid, '
'hybridFallback: $hybridFallback, creationParams: $creationParams)';
}
}

89
packages/flutter/test/services/platform_views_test.dart
View file

@ -48,7 +48,7 @@ void main() {
}
});
test('create Android views', () async {
test('create VD-fallback Android views', () async {
viewsController.registerViewType('webview');
await PlatformViewsService.initAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.ltr)
.create(size: const Size(100.0, 100.0));
@ -57,12 +57,85 @@ void main() {
expect(
viewsController.views,
unorderedEquals(<FakeAndroidPlatformView>[
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionLtr, null),
const FakeAndroidPlatformView(1, 'webview', Size(200.0, 300.0), AndroidViewController.kAndroidLayoutDirectionRtl, null),
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionLtr),
const FakeAndroidPlatformView(1, 'webview', Size(200.0, 300.0), AndroidViewController.kAndroidLayoutDirectionRtl),
]),
);
});
test('create HC-fallback Android views', () async {
viewsController.registerViewType('webview');
await PlatformViewsService.initSurfaceAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.ltr)
.create(size: const Size(100.0, 100.0));
await PlatformViewsService.initSurfaceAndroidView( id: 1, viewType: 'webview', layoutDirection: TextDirection.rtl)
.create(size: const Size(200.0, 300.0));
expect(
viewsController.views,
unorderedEquals(<FakeAndroidPlatformView>[
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionLtr,
hybridFallback: true),
const FakeAndroidPlatformView(1, 'webview', Size(200.0, 300.0), AndroidViewController.kAndroidLayoutDirectionRtl,
hybridFallback: true),
]),
);
});
test('create HC-only Android views', () async {
viewsController.registerViewType('webview');
await PlatformViewsService.initExpensiveAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.ltr)
.create(size: const Size(100.0, 100.0));
await PlatformViewsService.initExpensiveAndroidView( id: 1, viewType: 'webview', layoutDirection: TextDirection.rtl)
.create(size: const Size(200.0, 300.0));
expect(
viewsController.views,
unorderedEquals(<FakeAndroidPlatformView>[
const FakeAndroidPlatformView(0, 'webview', null, AndroidViewController.kAndroidLayoutDirectionLtr,
hybrid: true),
const FakeAndroidPlatformView(1, 'webview', null, AndroidViewController.kAndroidLayoutDirectionRtl,
hybrid: true),
]),
);
});
test('default view does not use view composition by default', () async {
viewsController.registerViewType('webview');
final AndroidViewController controller = PlatformViewsService.initAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.ltr);
await controller.create(size: const Size(100.0, 100.0));
expect(controller.requiresViewComposition, false);
});
test('default view does not use view composition in fallback mode', () async {
viewsController.registerViewType('webview');
viewsController.allowTextureLayerMode = false;
final AndroidViewController controller = PlatformViewsService.initAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.ltr);
await controller.create(size: const Size(100.0, 100.0));
viewsController.allowTextureLayerMode = true;
expect(controller.requiresViewComposition, false);
});
test('surface view does not use view composition by default', () async {
viewsController.registerViewType('webview');
final AndroidViewController controller = PlatformViewsService.initSurfaceAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.ltr);
await controller.create(size: const Size(100.0, 100.0));
expect(controller.requiresViewComposition, false);
});
test('surface view does uses view composition in fallback mode', () async {
viewsController.registerViewType('webview');
viewsController.allowTextureLayerMode = false;
final AndroidViewController controller = PlatformViewsService.initSurfaceAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.ltr);
await controller.create(size: const Size(100.0, 100.0));
viewsController.allowTextureLayerMode = true;
expect(controller.requiresViewComposition, true);
});
test('expensive view uses view composition', () async {
viewsController.registerViewType('webview');
final AndroidViewController controller = PlatformViewsService.initExpensiveAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.ltr);
await controller.create(size: const Size(100.0, 100.0));
expect(controller.requiresViewComposition, true);
});
test('reuse Android view id', () async {
viewsController.registerViewType('webview');
final AndroidViewController controller = PlatformViewsService.initAndroidView(
@ -111,7 +184,7 @@ void main() {
expect(
viewsController.views,
unorderedEquals(<FakeAndroidPlatformView>[
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionLtr, null),
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionLtr),
]),
);
});
@ -164,8 +237,8 @@ void main() {
expect(
viewsController.views,
unorderedEquals(<FakeAndroidPlatformView>[
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionLtr, null),
const FakeAndroidPlatformView(1, 'webview', Size(500.0, 500.0), AndroidViewController.kAndroidLayoutDirectionLtr, null),
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionLtr),
const FakeAndroidPlatformView(1, 'webview', Size(500.0, 500.0), AndroidViewController.kAndroidLayoutDirectionLtr),
]),
);
});
@ -209,7 +282,7 @@ void main() {
expect(
viewsController.views,
unorderedEquals(<FakeAndroidPlatformView>[
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionLtr, null),
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionLtr),
]),
);
});
@ -226,7 +299,7 @@ void main() {
expect(
viewsController.views,
unorderedEquals(<FakeAndroidPlatformView>[
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionRtl, null),
const FakeAndroidPlatformView(0, 'webview', Size(100.0, 100.0), AndroidViewController.kAndroidLayoutDirectionRtl),
]),
);
});

69
packages/flutter/test/widgets/platform_view_test.dart
View file

@ -41,7 +41,6 @@ void main() {
'webview',
const Size(200.0, 100.0),
AndroidViewController.kAndroidLayoutDirectionLtr,
null,
),
]),
);
@ -85,8 +84,7 @@ void main() {
'webview',
const Size(200.0, 100.0),
AndroidViewController.kAndroidLayoutDirectionLtr,
null,
fakeView.creationParams,
creationParams: fakeView.creationParams,
),
]),
);
@ -150,7 +148,6 @@ void main() {
'webview',
const Size(200.0, 100.0),
AndroidViewController.kAndroidLayoutDirectionLtr,
null,
),
]),
);
@ -166,7 +163,6 @@ void main() {
'webview',
const Size(100.0, 50.0),
AndroidViewController.kAndroidLayoutDirectionLtr,
null,
),
]),
);
@ -205,7 +201,6 @@ void main() {
'maps',
const Size(200.0, 100.0),
AndroidViewController.kAndroidLayoutDirectionLtr,
null,
),
]),
);
@ -272,7 +267,6 @@ void main() {
'webview',
const Size(200.0, 100.0),
AndroidViewController.kAndroidLayoutDirectionLtr,
null,
),
]),
);
@ -495,7 +489,6 @@ void main() {
'maps',
const Size(200.0, 100.0),
AndroidViewController.kAndroidLayoutDirectionRtl,
null,
),
]),
);
@ -518,7 +511,6 @@ void main() {
'maps',
const Size(200.0, 100.0),
AndroidViewController.kAndroidLayoutDirectionLtr,
null,
),
]),
);
@ -549,7 +541,6 @@ void main() {
'maps',
const Size(200.0, 100.0),
AndroidViewController.kAndroidLayoutDirectionRtl,
null,
),
]),
);
@ -575,7 +566,6 @@ void main() {
'maps',
const Size(200.0, 100.0),
AndroidViewController.kAndroidLayoutDirectionLtr,
null,
),
]),
);
@ -1257,6 +1247,63 @@ void main() {
await tester.pumpWidget(surface);
expect(controller.pointTransformer, isNotNull);
});
testWidgets('AndroidViewSurface defaults to texture-based rendering', (WidgetTester tester) async {
final AndroidViewSurface surface = AndroidViewSurface(
controller: controller,
hitTestBehavior: PlatformViewHitTestBehavior.opaque,
gestureRecognizers: const <Factory<OneSequenceGestureRecognizer>>{},
);
await tester.pumpWidget(surface);
expect(find.byWidgetPredicate(
(Widget widget) => widget.runtimeType.toString() == '_TextureBasedAndroidViewSurface',
), findsOneWidget);
});
testWidgets('AndroidViewSurface uses view-based rendering when initially required', (WidgetTester tester) async {
controller.requiresViewComposition = true;
final AndroidViewSurface surface = AndroidViewSurface(
controller: controller,
hitTestBehavior: PlatformViewHitTestBehavior.opaque,
gestureRecognizers: const <Factory<OneSequenceGestureRecognizer>>{},
);
await tester.pumpWidget(surface);
expect(find.byWidgetPredicate(
(Widget widget) => widget.runtimeType.toString() == '_PlatformLayerBasedAndroidViewSurface',
), findsOneWidget);
});
testWidgets('AndroidViewSurface can switch to view-based rendering after creation', (WidgetTester tester) async {
final AndroidViewSurface surface = AndroidViewSurface(
controller: controller,
hitTestBehavior: PlatformViewHitTestBehavior.opaque,
gestureRecognizers: const <Factory<OneSequenceGestureRecognizer>>{},
);
await tester.pumpWidget(surface);
expect(find.byWidgetPredicate(
(Widget widget) => widget.runtimeType.toString() == '_TextureBasedAndroidViewSurface',
), findsOneWidget);
expect(find.byWidgetPredicate(
(Widget widget) => widget.runtimeType.toString() == '_PlatformLayerBasedAndroidViewSurface',
), findsNothing);
// Simulate a creation-time switch to view composition.
controller.requiresViewComposition = true;
for (final PlatformViewCreatedCallback callback in controller.createdCallbacks) {
callback(controller.viewId);
}
await tester.pumpWidget(surface);
expect(find.byWidgetPredicate(
(Widget widget) => widget.runtimeType.toString() == '_TextureBasedAndroidViewSurface',
), findsNothing);
expect(find.byWidgetPredicate(
(Widget widget) => widget.runtimeType.toString() == '_PlatformLayerBasedAndroidViewSurface',
), findsOneWidget);
});
});
group('UiKitView', () {