Hmm...

gistfile1.txt

    //  this...
    
    @Override
    public void onMessageReceived(MessageEvent messageEvent) {

        Log.v(TAG, "Message received on wear: " + messageEvent.getPath());

        if(messageEvent.getPath().endsWith("connected")){
            findViewById(R.id.progress).setVisibility(View.GONE); //  Line #143
            findViewById(R.id.on_off_layout).setVisibility(View.VISIBLE);
        }
        else{
            findViewById(R.id.progress).setVisibility(View.VISIBLE);
            findViewById(R.id.on_off_layout).setVisibility(View.GONE);
        }

    }
    
    //  causes this:
    /*
    07-01 21:07:32.335    2185-2196/? E/JavaBinder﹕ *** Uncaught remote exception!  (Exceptions are not yet supported across processes.)
    android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
            at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:6075)
            at android.view.ViewRootImpl.invalidateChildInParent(ViewRootImpl.java:889)
            at android.view.ViewGroup.invalidateChild(ViewGroup.java:4319)
            at android.view.View.invalidate(View.java:11086)
            at android.view.View.setFlags(View.java:9056)
            at android.view.View.setVisibility(View.java:6176)
            at android.widget.ProgressBar.setVisibility(ProgressBar.java:935)
            at com.gatling.wearlifx.MainActivity.onMessageReceived(MainActivity.java:143)
            at com.google.android.gms.wearable.internal.av.a(Unknown Source)
            at com.google.android.gms.wearable.internal.ac$a.onTransact(Unknown Source)
            at android.os.Binder.execTransact(Binder.java:404)
            at dalvik.system.NativeStart.run(Native Method)
    */