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A virtual communication channel for exchanging messages between a Cast sender and a Cast receiver.
Each channel is tagged with a unique namespace, so multiple channels may be multiplexed over a single network connection between a sender and a receiver.
A channel must be registered with a GCKCastSession before it can be used. When the associated session is established, the channel will be connected automatically and can then send and receive messages.
Subclasses should implement the didReceiveTextMessage: (GCKCastChannel) method to process incoming messages, and will typically provide additional methods for sending messages that are specific to a given namespace.
Inherits NSObject.
Inherited by GCKGenericChannel.
- (instancetype) initWithNamespace: (NSString *) protocolNamespaceDesignated initializer.
Constructs a new GCKCastChannel with the given namespace.
Implemented in GCKGenericChannel.
Default initializer is not available.
- (void) didReceiveTextMessage: (NSString *) messageCalled when a text message has been received on this channel.
The default implementation is a no-op.
Sends a text message on this channel.
nil.
YES on success or NO if the message could not be sent.
Generates a request ID for a new message.
A convenience method which wraps the result of generateRequestID in an NSNumber.
nil if the channel is not currently connected.
Called when this channel has been connected, indicating that messages can now be exchanged with the Cast device over this channel.
The default implementation is a no-op.
Called when this channel has been disconnected, indicating that messages can no longer be exchanged with the Cast device over this channel.
The default implementation is a no-op.
- (void) didChangeWritableState: (BOOL) isWritableCalled when the writable state of this channel has changed.
The default implementation is a no-op.
The channel's namespace.
A flag indicating whether this channel is currently connected.
A flag indicating whether this channel is currently writable.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-09-18 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-18 UTC."],[[["The `GCKCastChannel` class enables communication between a Cast sender and receiver using namespaces for message exchange."],["Channels need registration with a `GCKCastSession` for connection and message handling."],["Subclasses should implement `didReceiveTextMessage:` to process incoming messages and may define namespace-specific sending methods."],["Key properties include `protocolNamespace`, `isConnected`, and `isWritable` to manage channel behavior."],["Methods like `sendTextMessage:` and `generateRequestID` facilitate message transmission and request management."]]],[]]
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