Overview
A class that manages sessions.
The method startSessionWithDevice: (GCKSessionManager) is used to create a new session with a given GCKDevice . The session manager uses the GCKDeviceProvider for that device type to construct a new GCKSession object, to which it then delegates all session requests.
GCKSessionManager handles the automatic resumption of suspended sessions (that is, resuming sessions that were ended when the application went to the background, or in the event that the application crashed or was forcibly terminated by the user). When the application resumes or restarts, the session manager will wait for a short time for the device provider of the suspended session's device to discover that device again, and if it does, it will attempt to reconnect to that device and re-establish the session automatically.
If the application has created a GCKUICastButton without providing a target and selector, then a user tap on the button will display the default Cast dialog and it will automatically start and stop sessions based on user selection or disconnection of a device. If however the application is providing its own device selection/control dialog UI, then it should use the GCKSessionManager directly to create and control sessions.
Whether or not the application uses the GCKSessionManager to control sessions, it can attach a GCKSessionManagerListener to be notified of session events, and can also use KVO to monitor the connectionState property to track the current session lifecycle state.
- Since
- 3.0
Inherits NSObject.
Method Detail
| - (instancetype) init |
Default initializer is not available.
| - (BOOL) startSessionWithDevice: | ( GCKDevice *) | device |
Starts a new session with the given device, using the default session options that were registered for the device category, if any.
This is an asynchronous operation.
- Parameters
- deviceThe device to use for this session.
- Returns
-
YESif the operation has been started successfully,NOif there is a session currently established or if the operation could not be started.
| - (BOOL) startSessionWithDevice: | ( GCKDevice *) | device | |
| sessionOptions: | (nullable GCKSessionOptions *) | options | |
Starts a new session with the given device and options.
This is an asynchronous operation.
- Parameters
-
device The device to use for this session. options The options for this session, if any. May be nil.
- Returns
-
YESif the operation has been started successfully,NOif there is a session currently established or if the operation could not be started.
- Since
- 4.0
| - (BOOL) startSessionWithOpenURLOptions: | ( GCKOpenURLOptions *) | openURLOptions | |
| sessionOptions: | (nullable GCKSessionOptions *) | sessionOptions | |
Attempts to join or start a session with options that were supplied to the UIApplicationDelegate::application:openURL:options: method.
Typically this is a request to join an existing Cast session on a particular device that was initiated by another app.
- Parameters
-
openURLOptions The options that were extracted from the URL. sessionOptions The options for this session, if any. May be nil.
- Returns
-
YESif the operation has been started successfully,NOif there is a session currently established, or the openURL options do not contain the required Cast options.
- Since
- 4.0
| - (BOOL) suspendSessionWithReason: | ( GCKConnectionSuspendReason ) | reason |
Suspends the current session.
This is an asynchronous operation.
- Parameters
- reasonThe reason for the suspension.
- Returns
-
YESif the operation has been started successfully,NOif there is no session currently established or if the operation could not be started.
| - (BOOL) endSession |
Ends the current session.
This is an asynchronous operation.
- Returns
-
YESif the operation has been started successfully,NOif there is no session currently established or if the operation could not be started.
| - (BOOL) endSessionAndStopCasting: | (BOOL) | stopCasting |
Ends the current session and stops casting if one sender device is connected; otherwise, optionally stops casting if multiple sender devices are connected.
Use the stopCasting
parameter to indicate whether casting on the receiver should stop when the session ends. This parameter only applies when multiple sender devices are connected. For example, the same app is open on multiple sender devices and each sender device has an active Cast session with the same receiver device.
- If you set
stopCastingtoYES, the receiver app stops casting when multiple devices are connected. - If
stopCastingisNOand other devices have an active session, the receiver keeps playing. - If only one sender device is connected, the receiver app stops casting the media and ignores the
stopCastingvalue, even if it's set toNO.
- Parameters
- stopCastingWhether casting on the receiver should stop when the session ends. Only used when multiple sender devices are connected.
- Returns
-
YESif the operation to end the session started successfully,NOif there is no session currently established or if the operation could not be started.
| - (BOOL) hasConnectedSession |
Tests if a session is currently being managed by this session manager, and it is currently connected.
This will be YES
if the session state is GCKConnectionStateConnected.
| - (BOOL) hasConnectedCastSession |
Tests if a Cast session is currently being managed by this session manager, and it is currently connected.
This will be YES
if the session state is GCKConnectionStateConnected and the session is a Cast session.
| - (void) setDefaultSessionOptions: | (nullable GCKSessionOptions *) | sessionOptions | |
| forDeviceCategory: | (NSString *) | category | |
Sets the default session options for the given device category.The session options are passed to the createSessionForDevice:sessionID:sessionOptions: (GCKDeviceProvider) method when the user selects a device from the Cast dialog.
For Cast sessions, the session options can specify which receiver application to launch.
- Parameters
-
sessionOptions The session options. May be nilto remove any previously set options.category The device category.
- Since
- 4.0
| - (nullable GCKSessionOptions *) defaultSessionOptionsForDeviceCategory: | (NSString *) | category |
Gets the default session options for a given device category.
- Parameters
- categoryThe device category.
- Returns
- The default session options, or
nilif none.
- Since
- 4.0
| - (void) addListener: | (id< GCKSessionManagerListener >) | listener |
Adds a listener for receiving notifications.
The added listener is weakly held, and should be retained to avoid unexpected deallocation.
- Parameters
- listenerThe listener to add.
| - (void) removeListener: | (id< GCKSessionManagerListener >) | listener |
Removes a listener that was previously added with addListener: .
- Parameters
- listenerThe listener to remove.
Property Detail
The current session, if any.
The current Cast session, if any.
The current session connection state.
