Implemented Mixpanel analytics

src/main/java/io/lbry/browser/reactmodules/MixpanelModule.java

@@ -0,0 +1,54 @@
+package io.lbry.browser.reactmodules;
+
+import android.content.Context;
+
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.ReadableMap;
+
+import com.mixpanel.android.mpmetrics.MixpanelAPI;
+
+import java.util.HashMap;
+import java.util.Map;
+import org.json.JSONObject;
+import org.json.JSONException;
+
+public class MixpanelModule extends ReactContextBaseJavaModule {
+
+    private static final String MIXPANEL_TOKEN = "93b81fb957cb0ddcd3198c10853a6a95";
+
+    private Context context;
+    
+    private MixpanelAPI mixpanel;
+
+    public MixpanelModule(ReactApplicationContext reactContext) {
+        super(reactContext);
+        this.context = reactContext;
+        this.mixpanel = MixpanelAPI.getInstance(this.context, MIXPANEL_TOKEN);
+    }
+
+    @Override
+    public String getName() {
+        return "Mixpanel";
+    }
+    
+    @ReactMethod
+    public void track(String name, ReadableMap payload) {
+        JSONObject props = new JSONObject();
+        try {
+            if (payload != null) {
+                HashMap<String, Object> payloadMap = payload.toHashMap();
+                for (Map.Entry<String, Object> entry : payloadMap.entrySet()) {
+                    props.put(entry.getKey(), entry.getValue());
+                }
+            }
+        } catch (JSONException e) {
+            // Cannot use props. Stick with empty props.    
+        }
+        
+        if (mixpanel != null) {
+            mixpanel.track(name, props);
+        }
+    }
+}