SAP APIs - How to send Icon/Array from phone to watch

Galaxy Watch for Tizen Tizen Web APIs
1

Hi there,

I am working on a project using Samsung accessory protocol which is usually called “Companion app”. I includes 2 parts:

  1. Android app to send data.
  2. Tizen web APIs: watch app to receive and show data.

As provided in Samsung sample apps, I understand that we can send String data like this:

private ServiceConnection mConnectionHandler = null;
...
this.mConnectionHandler = (ServiceConnection) socket;
...
public boolean sendData(final String data) {
    boolean retvalue = false;
    if (mConnectionHandler != null) {
        try {
            mConnectionHandler.send(getServiceChannelId(0), data.getBytes());
            retvalue = true;
        } catch (IOException e) {
            e.printStackTrace();
        }
        addMessage("Sent: ", data);
    }
    return retvalue;
}

Then, in watch app using Web APIs, I receive data like this:

 dataOnReceive =  function dataOnReceive (channelId, data) {
        var newData;

        if (!SAAgent.channelIds[0]) {
            createHTML("Something goes wrong...NO CHANNEL ID!");
            return;
        }
        newData = data + " :: " + new Date();

        /* Send new data to Consumer */
        SASocket.sendData(SAAgent.channelIds[0], newData);
        createHTML("Send massage:<br />" +
                    newData);
    };

The above codes work perfectly. But in my case, I need to send a data including 2 parts:

  1. A String
  2. An Drawable Icon:

import android.graphics.drawable.Icon;

It seems like the function always considers the data as a simple string:

dataOnReceive =  function dataOnReceive (channelId, data) {
    newData = data + " :: " + new Date();

So my question is: How to send string and Icon at the same time, how to retrieve and separate them in Web APIs so that I can display a text and an Icon on my watch app? Can we send a json data so that It can be easier to process in Web APIs?

Thank you very much!

2

Sorry for my bad question. We can just convert an object to json format then send the json as a string. Finally, in Web API, we can use javascript to parse the string to object by JSON.parse();

 JSONObject obj = new JSONObject();
 obj.put("title", titleString);
 obj.toString()

For the icon, convert the icon to bitmap, then convert bitmap to base64 format and embed along with the json mentioned above.

I’ve resolved the issue.

3

It is easy. An icon/image convert to Base64. Finally string and text add to JSON Object or send direct using delimeter like “string1_icon | string2_text” . Char | is your delimeter
or send as JSON like:
var json = {};
json.text = string1_text;
json.icon = string2_icon;
var outdata = JSON.stringify( json );