GCKGenericChannel Class

GCKGenericChannel Class Reference

Overview

A generic GCKCastChannel implementation, suitable for use when subclassing is not desired.

GCKGenericChannel forwards message and connectivity events to its delegate, and has no processing logic of its own.

See GCKGenericChannelDelegate for the delegate protocol.

Inherits GCKCastChannel.

Instance Method Summary

(instancetype) - initWithNamespace:
 Designated initializer. More...
 
(instancetype) - init
 Default initializer is not available. More...
 
(void) - didReceiveTextMessage:
 Called when a text message has been received on this channel. More...
 
(BOOL) - sendTextMessage:error:
 Sends a text message on this channel. More...
 
(NSInteger) - generateRequestID
 Generates a request ID for a new message. More...
 
(NSNumber *__nullable) - generateRequestNumber
 A convenience method which wraps the result of generateRequestID in an NSNumber. More...
 
(void) - didConnect
 Called when this channel has been connected, indicating that messages can now be exchanged with the Cast device over this channel. More...
 
(void) - didDisconnect
 Called when this channel has been disconnected, indicating that messages can no longer be exchanged with the Cast device over this channel. More...
 
(void) - didChangeWritableState:
 Called when the writable state of this channel has changed. More...
 

Property Summary

id< GCKGenericChannelDelegatedelegate
 The delegate for receiving notifications about changes in the channel's state. More...
 
NSString * protocolNamespace
 The channel's namespace. More...
 
BOOL isConnected
 A flag indicating whether this channel is currently connected. More...
 
BOOL isWritable
 A flag indicating whether this channel is currently writable. More...
 

Method Detail

- (instancetype) initWithNamespace: (NSString *)  protocolNamespace

Designated initializer.

Parameters
protocolNamespaceThe namespace for this channel. This namespace must be unique across all channels used by a given application.

Implements GCKCastChannel.

- (instancetype) init

Default initializer is not available.

- (void) didReceiveTextMessage: (NSString *)  message

Called when a text message has been received on this channel.

The default implementation is a no-op.

Parameters
messageThe message.
- (BOOL) sendTextMessage: (NSString *)  message
error: (GCKError *__nullable *__nullable)  error 

Sends a text message on this channel.

Parameters
messageThe message.
errorA pointer at which to store the error result. May be nil.
Returns
YES on success or NO if the message could not be sent.
- (NSInteger) generateRequestID

Generates a request ID for a new message.

Returns
The generated ID, or kGCKInvalidRequestID if the channel is not currently connected.
- (NSNumber * __nullable) generateRequestNumber

A convenience method which wraps the result of generateRequestID in an NSNumber.

Returns
The generated ID, or nil if the channel is not currently connected.
- (void) didConnect

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.

- (void) didDisconnect

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)  isWritable

Called when the writable state of this channel has changed.

The default implementation is a no-op.

Parameters
isWritableWhether the channel is now writable.
Since
4.0

Property Detail

- (id<GCKGenericChannelDelegate>) delegate
readwritenonatomicweak

The delegate for receiving notifications about changes in the channel's state.

- (NSString*) protocolNamespace
readnonatomiccopyinherited

The channel's namespace.

- (BOOL) isConnected
readnonatomicassigninherited

A flag indicating whether this channel is currently connected.

- (BOOL) isWritable
readnonatomicassigninherited

A flag indicating whether this channel is currently writable.

Since
4.0