Emitter added.

src/Geo.js

@@ -7,6 +7,7 @@ var Geo = function() {
     this.watchId = (null: ?number)
     this.callback = null;
     this.track = [];
+    this.objs = [];
 };
 
 Geo.prototype.setCallback = function(callback) {
@@ -40,4 +41,12 @@ Geo.prototype.stopListen =  function() {
     navigator.geolocation.clearWatch(this.watchId);
 };
 
+Geo.prototype.storeObj = function(obj) {
+    this.objs.push(obj);
+}
+
+Geo.prototype.getObjs = function() {
+    return this.objs;
+}
+
 module.exports = Geo;

src/Globals.js

@@ -0,0 +1,7 @@
+/**
+ * @providesModule Globals
+ */
+var EventEmitter = new(require('events').EventEmitter);
+module.exports = {
+    EMITTER: EventEmitter,
+};

src/Mapa.js

@@ -10,6 +10,7 @@ var {
     Dimensions,
 } = ReactNative;
 var MapView = require('react-native-maps');
+var GLOBAL = require('Globals');
 
 var {width, height} = Dimensions.get('window');
 
@@ -30,7 +31,25 @@ var Liner = {
     }
 }
 
+var makeChangeEventMixin = function(emitter){
+    return {
+        componentDidMount: function(){
+            emitter.addListener('change', this.__makeChangeEventMixin_handler_);
+        },
+        componentWillUnmount: function(){
+            emitter.removeListener('change', this.__makeChangeEventMixin_handler_);
+        },
+        __makeChangeEventMixin_handler_: function(payload){
+            this.setState(payload);
+        },
+        emitStateChange: function(payload){
+            emitter.emit('change', payload);
+        }
+    };
+};
+
 var Mapa = React.createClass({
+    mixins: [makeChangeEventMixin(GLOBAL.EMITTER)],
     getInitialState: function () {
         return {
             line: [
@@ -42,6 +61,9 @@ var Mapa = React.createClass({
         }
     },
 
+    //DidMount: {listen to geo objects changed},
+    //DidUnmount: {stop listening},
+
     onTrackIncrease: function(track) {
         var lastPoint = track.slice(-1)[0];
         if (!lastPoint) {

src/index.js

@@ -11,6 +11,7 @@ var {
 var Btn = require('Btn');
 var Geo = new(require('Geo'));
 var Mapa = new(require('Mapa'));
+var GLOBAL = require('Globals');
 
 var Moov = React.createClass({
     render: function() {
@@ -46,7 +47,15 @@ Geo.setCallback(function(track) {
         }
     }).then((obj) => {
         if (obj) {
-            Mapa.setPointOfInterests(obj);
+            Geo.storeObj(obj);
+            GLOBAL.EMITTER.emit('change', {
+                line: [
+                    {latitude: 39.73825, longitude: -124.4424},
+                    {latitude: 39.74825, longitude: -124.4724},
+                    {latitude: 39.75825, longitude: -124.4224},
+                    {latitude: 39.76825, longitude: -124.4524},
+                ]
+            })
         }
     });
     Mapa.onTrackIncrease(track)