##Making a simple network app It quite takes a lot time for me to manage the communication between device and wear. I mean when you want to call an API, for device, you just need to use functions in available libraries (Aquery, Ion, Volley...), but for Android Wear, I didn't find any library that support it. Then I have to open connection with device and request and wait to get back the content from them. It takes me quite a lot of time for debugging to understand the guideline. Finally, here is the good news, I got 2 general classes that help us to implement the communication easier.
##General classes
- Device's side
Starting service in the Activity that you want to communicate with wear. Your service will be extend from my base service BaseDataLayerListenerService which has 2 important functions:
protected abstract void onMessageReceivedSuccess(MessageEvent m);
protected void sendToPairDevice(String path, byte[] data, final ResultCallback<MessageApi.SendMessageResult> callback)
The function onMessageReceivedSuccess will listen message from wear, and the function sendToPairDevice will send message to the connected wear.
- Wear's side
Extending the Activity with class BaseConnectionWearMobileActivity to have 3 important functions:
protected abstract void onFinishSetupConnectionWearMobile();
protected abstract void onMessageReceivedSuccess(MessageEvent m);
protected void sendToPairDevice(String path, byte[] data, final ResultCallback<MessageApi.SendMessageResult> callback)
The function onFinishSetupConnectionWearMobile will tell you when it connected with device, the function onMessageReceivedSuccess will listen message from device, and sendToPairDevice will send message to the connected device.
You can find my sample app in github: https://github.com/lthung1504/nice-stop-android-wear
The app show the list nearby venues around your current location by calling foursquare API from device and show it in the android wear.