What is the Uri for Wearable.DataApi.getDataItem() after using PutDataMapRequest?

Question

I\'m testing the Wearable Data Layer Api as described in the Android tutorial.

There is a low level API based around DataItem, which can have only a byte array

Answer 1

The uri's authority (which is described as in your post) is Node Id which is available via Node API. In summary, you can construct the Uri as following.

private Uri getUriForDataItem() {
    // If you've put data on the local node
    String nodeId = getLocalNodeId();
    // Or if you've put data on the remote node
    // String nodeId = getRemoteNodeId();
    // Or If you already know the node id
    // String nodeId = "some_node_id";
    return new Uri.Builder().scheme(PutDataRequest.WEAR_URI_SCHEME).authority(nodeId).path("/path_to_data").build();
}

private String getLocalNodeId() {
    NodeApi.GetLocalNodeResult nodeResult = Wearable.NodeApi.getLocalNode(mGoogleApiClient).await();
    return nodeResult.getNode().getId();
}

private String getRemoteNodeId() {
    HashSet results = new HashSet();
    NodeApi.GetConnectedNodesResult nodesResult =
            Wearable.NodeApi.getConnectedNodes(mGoogleApiClient).await();
    List nodes = nodesResult.getNodes();
    if (nodes.size() > 0) {
        return nodes.get(0).getId();
    }
    return null;
}