<FlutterPluginRegistrar> Protocol Reference

#import <FlutterPlugin.h>

Inheritance diagram for <FlutterPluginRegistrar>:

Instance Methods
(NSObject< FlutterBinaryMessenger > *)	- messenger
(NSObject< FlutterTextureRegistry > *)	- textures
(void)	- registerViewFactory:withId:
(void)	- registerViewFactory:withId:gestureRecognizersBlockingPolicy:
(void)	- publish:
(void)	- addMethodCallDelegate:channel:
(void)	- addApplicationDelegate:
(NSString *)	- lookupKeyForAsset:
(NSString *)	- lookupKeyForAsset:fromPackage:
(void)	- addMethodCallDelegate:channel:
(void)	- addApplicationDelegate:
(void)	- registerViewFactory:withId:
(void)	- publish:
(nonnull NSString *)	- lookupKeyForAsset:
(nonnull NSString *)	- lookupKeyForAsset:fromPackage:

Properties
id< FlutterBinaryMessenger >	messenger
id< FlutterTextureRegistry >	textures
NSView *	view

Detailed Description

Registration context for a single FlutterPlugin, providing a one stop shop for the plugin to access contextual information and register callbacks for various application events.

Registrars are obtained from a FlutterPluginRegistry which keeps track of the identity of registered plugins and provides basic support for cross-plugin coordination.

The protocol for an object managing registration for a plugin. It provides access to application context, as allowing registering for callbacks for handling various conditions.

Currently the macOS PluginRegistrar has very limited functionality, but is expected to expand over time to more closely match the functionality of FlutterPluginRegistrar.

Definition at line 283 of file FlutterPlugin.h.

Method Documentation

addApplicationDelegate: [1/2]

- (void) addApplicationDelegate:

("Disallowed in plugins used in app extensions")

NS_EXTENSION_UNAVAILABLE_IOS

Registers the plugin as a receiver of UIApplicationDelegate calls.

Parameters

delegate

The receiving object, such as the plugin's main class.

Reimplemented in FlutterEngineRegistrar.

addApplicationDelegate: [2/2]

- (void) addApplicationDelegate:

(nonnull NSObject< FlutterAppLifecycleDelegate > *)

delegate

Registers the plugin as a receiver of NSApplicationDelegate calls.

Parameters

delegate

The receiving object, such as the plugin's main class.

Reimplemented in FakePluginRegistrar.

addMethodCallDelegate:channel: [1/2]

- (void) addMethodCallDelegate:		(nonnull id< FlutterPlugin >)	delegate
channel:		(nonnull FlutterMethodChannel *)	channel

Registers |delegate| to receive handleMethodCall:result: callbacks for the given |channel|.

Reimplemented in FlutterEngineRegistrar, and FakePluginRegistrar.

addMethodCallDelegate:channel: [2/2]

- (void) addMethodCallDelegate:		(NSObject< FlutterPlugin > *)	delegate
channel:		(FlutterMethodChannel *)	channel

Registers the plugin as a receiver of incoming method calls from the Dart side on the specified FlutterMethodChannel.

Parameters

delegate	The receiving object, such as the plugin's main class.
channel	The channel

Reimplemented in FlutterEngineRegistrar.

lookupKeyForAsset: [1/2]

- (nonnull NSString *) lookupKeyForAsset:

(nonnull NSString *)

asset

Returns the file name for the given asset. The returned file name can be used to access the asset in the application's main bundle.

Parameters

asset

The name of the asset. The name can be hierarchical.

Returns

the file name to be used for lookup in the main bundle.

Reimplemented in FakePluginRegistrar.

lookupKeyForAsset: [2/2]

- (NSString *) lookupKeyForAsset:

(NSString *)

asset

Returns the file name for the given asset. The returned file name can be used to access the asset in the application's main bundle.

Parameters

asset

The name of the asset. The name can be hierarchical.

Returns

the file name to be used for lookup in the main bundle.

Reimplemented in FlutterEngineRegistrar.

lookupKeyForAsset:fromPackage: [1/2]

- (nonnull NSString *) lookupKeyForAsset:		(nonnull NSString *)	asset
fromPackage:		(nonnull NSString *)	package

Returns the file name for the given asset which originates from the specified package. The returned file name can be used to access the asset in the application's main bundle.

Parameters

asset	The name of the asset. The name can be hierarchical.
package	The name of the package from which the asset originates.

Returns

the file name to be used for lookup in the main bundle.

Reimplemented in FakePluginRegistrar.

lookupKeyForAsset:fromPackage: [2/2]

- (NSString *) lookupKeyForAsset:		(NSString *)	asset
fromPackage:		(NSString *)	package

Returns the file name for the given asset which originates from the specified package. The returned file name can be used to access the asset in the application's main bundle.

Parameters

asset	The name of the asset. The name can be hierarchical.
package	The name of the package from which the asset originates.

Returns

the file name to be used for lookup in the main bundle.

Reimplemented in FlutterEngineRegistrar.

messenger

- (NSObject< FlutterBinaryMessenger > *) messenger

Returns a FlutterBinaryMessenger for creating Dart/iOS communication channels to be used by the plugin.

Returns

The messenger.

Reimplemented in FlutterEngineRegistrar.

publish: [1/2]

- (void) publish:

(nonnull NSObject *)

value

Publishes a value for external use of the plugin.

Plugins may publish a single value, such as an instance of the plugin's main class, for situations where external control or interaction is needed.

The published value will be available from the FlutterPluginRegistry. Repeated calls overwrite any previous publication.

Parameters

value

The value to be published.

Reimplemented in FakePluginRegistrar.

publish: [2/2]

- (void) publish:

(NSObject *)

value

Publishes a value for external use of the plugin.

Plugins may publish a single value, such as an instance of the plugin's main class, for situations where external control or interaction is needed.

The published value will be available from the FlutterPluginRegistry. Repeated calls overwrite any previous publication.

Parameters

value

The value to be published.

Reimplemented in FlutterEngineRegistrar.

registerViewFactory:withId: [1/2]

- (void) registerViewFactory:		(nonnull NSObject< FlutterPlatformViewFactory > *)	factory
withId:		(nonnull NSString *)	factoryId

Registers a FlutterPlatformViewFactory for creation of platform views.

Plugins expose NSView for embedding in Flutter apps by registering a view factory.

Parameters

factory	The view factory that will be registered.
factoryId	A unique identifier for the factory, the Dart code of the Flutter app can use this identifier to request creation of a NSView by the registered factory.

Reimplemented in FlutterEngineRegistrar, and FakePluginRegistrar.

registerViewFactory:withId: [2/2]

- (void) registerViewFactory:		(NSObject< FlutterPlatformViewFactory > *)	factory
withId:		(NSString *)	factoryId

Registers a FlutterPlatformViewFactory for creation of platform views.

Plugins expose UIView for embedding in Flutter apps by registering a view factory.

Parameters

factory	The view factory that will be registered.
factoryId	A unique identifier for the factory, the Dart code of the Flutter app can use this identifier to request creation of a UIView by the registered factory.

Reimplemented in FlutterEngineRegistrar.

registerViewFactory:withId:gestureRecognizersBlockingPolicy:

- (void) registerViewFactory:		(NSObject< FlutterPlatformViewFactory > *)	factory
withId:		(NSString *)	factoryId
gestureRecognizersBlockingPolicy:		(FlutterPlatformViewGestureRecognizersBlockingPolicy)	gestureRecognizersBlockingPolicy

Registers a FlutterPlatformViewFactory for creation of platform views.

Plugins can expose a UIView for embedding in Flutter apps by registering a view factory.

Parameters

factory	The view factory that will be registered.
factoryId	A unique identifier for the factory, the Dart code of the Flutter app can use this identifier to request creation of a UIView by the registered factory.
gestureRecognizersBlockingPolicy	How UIGestureRecognizers on the platform views are blocked.

Reimplemented in FlutterEngineRegistrar.

textures

- (NSObject< FlutterTextureRegistry > *) textures

Returns a FlutterTextureRegistry for registering textures provided by the plugin.

Returns

The texture registry.

Reimplemented in FlutterEngineRegistrar.

Property Documentation

messenger

- (id<FlutterBinaryMessenger>) messenger

readatomicassign

The binary messenger used for creating channels to communicate with the Flutter engine.

Reimplemented in FlutterEngineRegistrar.

Definition at line 33 of file FlutterPluginRegistrarMacOS.h.

textures

- (id<FlutterTextureRegistry>) textures

readatomicassign

Returns a FlutterTextureRegistry for registering textures provided by the plugin.

Reimplemented in FlutterEngineRegistrar.

Definition at line 39 of file FlutterPluginRegistrarMacOS.h.

view

- (NSView*) view

readatomicassign

The view displaying Flutter content.

This property is provided for backwards compatibility for apps that assume a single view. This will eventually be replaced by a multi-view API variant.

This method may return |nil|, for instance in a headless environment.

Reimplemented in FlutterEngineRegistrar.

Definition at line 50 of file FlutterPluginRegistrarMacOS.h.

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The documentation for this protocol was generated from the following files:

• shell/platform/darwin/ios/framework/Headers/FlutterPlugin.h
• shell/platform/darwin/macos/framework/Headers/FlutterPluginRegistrarMacOS.h