This interface was deprecated.
Use ChannelClient.
Client interface for Wearable Channel API. Allows apps on a wearable device to send and receive data from other wearable nodes.
Channels are bidirectional. Each side, both the initiator and the receiver may both read
and write to the channel by using
getOutputStream(GoogleApiClient) and
getInputStream(GoogleApiClient). Once a channel is established, the API for the
initiator and receiver are identical.
Channels are only available when the wearable nodes are connected. When the remote node
disconnects, all existing channels will be closed. Any listeners (added through
addListener(GoogleApiClient, ChannelListener) and any installed WearableListenerService)
will be notified of the channel closing.
Nested Class Summary
| interface | ChannelApi.ChannelListener | This interface was deprecated. Use
ChannelClient.ChannelCallback. |
|
| @interface | ChannelApi.CloseReason | An annotation for values passed to
onChannelClosed(Channel, int, int), and other methods on the
ChannelApi.ChannelListener interface. |
|
| interface | ChannelApi.OpenChannelResult | This interface was deprecated. See
openChannel(String, String). |
|
Constant Summary
| String | ACTION_CHANNEL_EVENT | Channel action for use in listener filters. |
Public Method Summary
| abstract PendingResult<Status> |
addListener(GoogleApiClient
client,
ChannelApi.ChannelListener listener)
Registers a listener to be notified of channel events.
|
| abstract PendingResult<ChannelApi.OpenChannelResult> |
openChannel(GoogleApiClient
client, String nodeId,
String
path)
Opens a channel to exchange data with a remote node.
|
| abstract PendingResult<Status> |
removeListener(GoogleApiClient
client,
ChannelApi.ChannelListener listener)
Removes a listener which was previously added through
addListener(GoogleApiClient, ChannelListener).
|
Constants
public static final String ACTION_CHANNEL_EVENT
Channel action for use in listener filters.
See Also
Public Methods
public abstract PendingResult<Status> addListener (GoogleApiClient client, ChannelApi.ChannelListener listener)
Registers a listener to be notified of channel events. Calls to this method should
be balanced with calls to
removeListener(GoogleApiClient, ChannelListener) to avoid leaking
resources.
Listener events will be called on the main thread, or the handler specified on
client when it was built (using
setHandler(Handler)).
Callers wishing to be notified of events in the background should use WearableListenerService.
Parameters
| client | a connected client |
|---|---|
| listener | a listener which will be notified of changes to any channel |
public abstract PendingResult<ChannelApi.OpenChannelResult> openChannel (GoogleApiClient client, String nodeId, String path)
Opens a channel to exchange data with a remote node.
Channel which are no longer needed should be closed using
close(GoogleApiClient).
This call involves a network round trip, so may be long running. client
must remain connected during that time, or the request will be cancelled (like any
other Play Services API calls).
Parameters
| client | a connected client |
|---|---|
| nodeId | the node ID of a wearable node, as returned from
getConnectedNodes(GoogleApiClient) |
| path | an app-specific identifier for the channel |
public abstract PendingResult<Status> removeListener (GoogleApiClient client, ChannelApi.ChannelListener listener)
Removes a listener which was previously added through
addListener(GoogleApiClient, ChannelListener).
Parameters
| client | a connected client |
|---|---|
| listener | a listener which was added using
addListener(GoogleApiClient, ChannelListener) |