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Showing content from https://api.flutter.dev/ios-embedder/interface_flutter_method_channel.html below:

Flutter iOS Embedder: FlutterMethodChannel Class Reference

#import <FlutterChannels.h>

A channel for communicating with the Flutter side using invocation of asynchronous methods.

Definition at line 220 of file FlutterChannels.h.

◆ initWithName:binaryMessenger:codec: - (instancetype) initWithName: (NSString *) name binaryMessenger: (NSObject< FlutterBinaryMessenger > *) messenger codec: (NSObject< FlutterMethodCodec > *) codec

Initializes a FlutterMethodChannel with the specified name, binary messenger, and method codec.

The channel name logically identifies the channel; identically named channels interfere with each other's communication.

The binary messenger is a facility for sending raw, binary messages to the Flutter side. This protocol is implemented by FlutterEngine and FlutterViewController.

Parameters: name The channel name. messenger The binary messenger. codec The method codec.

◆ initWithName:binaryMessenger:codec:taskQueue: - (instancetype) initWithName: (NSString *) name binaryMessenger: (NSObject< FlutterBinaryMessenger > *) messenger codec: (NSObject< FlutterMethodCodec > *) codec taskQueue: (NSObject< FlutterTaskQueue > *_Nullable) taskQueue

Initializes a FlutterMethodChannel with the specified name, binary messenger, method codec, and task queue.

The channel name logically identifies the channel; identically named channels interfere with each other's communication.

The binary messenger is a facility for sending raw, binary messages to the Flutter side. This protocol is implemented by FlutterEngine and FlutterViewController.

Parameters: name The channel name. messenger The binary messenger. codec The method codec. taskQueue The FlutterTaskQueue that executes the handler (see -[FlutterBinaryMessenger makeBackgroundTaskQueue]).

◆ invokeMethod:arguments: - (void) invokeMethod: (NSString *) method arguments: (id _Nullable) arguments

Invokes the specified Flutter method with the specified arguments, expecting no results.

See also: MethodChannel.setMethodCallHandler

Parameters: method The name of the method to invoke. arguments The arguments. Must be a value supported by the codec of this channel.

◆ invokeMethod:arguments:result: - (void) invokeMethod: (NSString *) method arguments: (id _Nullable) arguments result: (FlutterResult _Nullable) callback

Invokes the specified Flutter method with the specified arguments, expecting an asynchronous result.

Parameters: method The name of the method to invoke. arguments The arguments. Must be a value supported by the codec of this channel. callback A callback that will be invoked with the asynchronous result. The result will be a FlutterError instance, if the method call resulted in an error on the Flutter side. Will be FlutterMethodNotImplemented, if the method called was not implemented on the Flutter side. Any other value, including nil, should be interpreted as successful results.

◆ methodChannelWithName:binaryMessenger: + (instancetype) methodChannelWithName: (NSString *) name binaryMessenger: (NSObject< FlutterBinaryMessenger > *) messenger

Creates a FlutterMethodChannel with the specified name and binary messenger.

The channel name logically identifies the channel; identically named channels interfere with each other's communication.

The binary messenger is a facility for sending raw, binary messages to the Flutter side. This protocol is implemented by FlutterEngine and FlutterViewController.

The channel uses FlutterStandardMethodCodec to encode and decode method calls and result envelopes.

Parameters: name The channel name. messenger The binary messenger.

◆ methodChannelWithName:binaryMessenger:codec: + (instancetype) methodChannelWithName: (NSString *) name binaryMessenger: (NSObject< FlutterBinaryMessenger > *) messenger codec: (NSObject< FlutterMethodCodec > *) codec

Creates a FlutterMethodChannel with the specified name, binary messenger, and method codec.

The channel name logically identifies the channel; identically named channels interfere with each other's communication.

The binary messenger is a facility for sending raw, binary messages to the Flutter side. This protocol is implemented by FlutterEngine and FlutterViewController.

Parameters: name The channel name. messenger The binary messenger. codec The method codec.

◆ resizeChannelBuffer: - (void) resizeChannelBuffer: (NSInteger) newSize

Adjusts the number of messages that will get buffered when sending messages to channels that aren't fully set up yet. For example, the engine isn't running yet or the channel's message handler isn't set up on the Dart side yet.

◆ setMethodCallHandler:

Registers a handler for method calls from the Flutter side.

Replaces any existing handler. Use a nil handler for unregistering the existing handler.

Parameters: handler The method call handler.

The documentation for this class was generated from the following file:

shell/platform/darwin/common/framework/Headers/FlutterChannels.h

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