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GCKCastSession Class | Google for Developers

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A class that manages a Cast session with a receiver device.

Sessions are created and managed automatically by the GCKSessionManager. The application should not directly call the session lifecycle methods such as start (GCKSession(Protected)) or endWithAction: (GCKSession(Protected)).

Since

3.0

Inherits GCKSession.

Constructs a new Cast session with the given Cast options.

Parameters

device The receiver device. sessionID The session ID, if resuming; otherwise nil. sessionOptions The session options, if any; otherwise nil. castOptions The Cast options.

Since

4.0

Registers a channel with the session.

If the session is connected and the receiver application supports the channel's namespace, the channel will be automatically connected. If the session is not connected, the channel will remain in a disconnected state until the session is started.

Parameters

channel The channel to register.

Returns

YES if the channel was registered successfully, NO otherwise.

Removes a previously registered channel from the session.

Parameters

channel The channel to unregister.

Returns

YES if the channel was unregistered successfully, NO otherwise.

Adds a GCKCastDeviceStatusListener to this object's list of listeners.

The added listener is weakly held, and should be retained to avoid unexpected deallocation.

Parameters

listener The listener to add.

Sets the individual device's volume in a multizone group.

This is an asynchronous operation.

Parameters

volume The new volume, in the range [0.0, 1.0]. device The multizone device.

Returns

A GCKRequest object for tracking the request.

Sets the individual device's muted state in a multizone group.

This is an asynchronous operation.

Parameters

muted The new muted state. device The multizone device.

Returns

A GCKRequest object for tracking the request.

Initializes a new session object for the given device, with default options.

Parameters

device The device. traits The session traits. sessionID The session ID of an existing session, if this object will be used to resume a session; otherwise nil if it will be used to start a new session.

Initializes a new session object for the given device.

Parameters

device The device. traits The session traits. sessionID The session ID of an existing session, if this object will be used to resume a session; otherwise nil if it will be used to start a new session. sessionOptions The session options, if any; otherwise nil.

Since

4.0

Sets the device's volume.

This is an asynchronous operation. The default implementation is a no-op that fails the request with a GCKErrorCodeUnsupportedFeature error.

Parameters

Returns

A GCKRequest object for tracking the request.

Since

3.4; in previous framework versions, this method returned void.

Sets the device's mute state.

This is an asynchronous operation. The default implementation is a no-op that fails the request with a GCKErrorCodeUnsupportedFeature error.

Parameters

muted The new mute state.

Returns

A GCKRequest object for tracking the request.

Since

3.4; in previous framework versions, this method returned void.

Starts the session.

This is an asynchronous operation. Must be overridden by subclasses.

Provided by category GCKSession(Protected).

Ends the session with the specified action.

This is an asynchronous operation. Must be overridden by subclasses.

Parameters

action The action to take when ending the session; see GCKSessionEndAction for more details.

Provided by category GCKSession(Protected).

Called by subclasses to notify the framework that the session has been started.

Parameters

sessionID The session's unique ID.

Provided by category GCKSession(Protected).

Called by subclasses to notify the framework that the session has failed to start.

Parameters

error The error that occurred.

Provided by category GCKSession(Protected).

Called by subclasses to notify the framework that the session has ended.

Parameters

error The error that caused the session to end, if any. Should be nil if the session was ended intentionally. willTryToResume Whether the session will try to resume itself automatically.

Provided by category GCKSession(Protected).

Called by subclasses to notify the framework that updated device volume and mute state has been received from the device.

Parameters

volume The device's current volume. Must be in the range [0, 1.0]; muted The device's current mute state.

Provided by category GCKSession(Protected).

Called by subclasses to notify the framework that updated status has been received from the device.

Parameters

statusText The new status.

Provided by category GCKSession(Protected).

The device's current "active input" status.

The device's current "standby" status.

The metadata for the receiver application that is currently running on the receiver device, if any; otherwise nil.

The device that this session is associated with.

The current session ID, if any.

The session options, if any.

Since

4.0

The current session connection state.

A flag indicating whether the session is currently suspended.

Deprecated:

GCKSession no longer supports being in suspended state. If needed, move this functionality to a subclass.

The current device status text.

The session traits.

The current device volume, in the range [0.0, 1.0].

The current device mute state.

The current media metadata, if any.

Will be nil if the session does not support the media namespace or if no media is currently loaded on the receiver.

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."],[[["`GCKCastSession` manages a Cast session and its lifecycle, including channels, device status, and volume control, but applications should avoid directly managing the session's start and end."],["`GCKCastSession` provides properties for accessing session status, device information (like volume and mute state), and media control via `remoteMediaClient`."],["`GCKSession` is an abstract base class for Cast sessions, requiring subclasses to implement session start/end logic and provides properties for session status, device details, and media information."],["Subclasses of `GCKSession` use protected methods to notify the framework about session lifecycle events like start, end, errors, and device status changes."]]],["The `GCKCastSession` class manages Cast sessions, created by `GCKSessionManager`. Key actions include constructing sessions with options, registering/removing channels, and adding/removing device status listeners. It supports setting device volume and mute states, requesting multizone status, and controlling media playback. Subclasses use methods to notify the framework about session lifecycle events, device status, and connection status. It provides properties for session, device, and media status, with deprecated methods.\n"]]

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