creating layouts

android/app/src/main/java/com/reactnativenavigation/bridge/NavigationReactModule.java

@@ -7,13 +7,13 @@ import com.facebook.react.bridge.ReadableMap;
 
 /**
  * The basic abstract components we will expose:
- * BottomTabs
- * TopBar
+ * BottomTabs (app) - boolean
+ * TopBar (per screen)
  * - TitleBar
  * - TopTabs (segmented control / view pager)
- * DeviceStatusBar
- * AndroidNavigationBar
- * SideMenu
+ * DeviceStatusBar (app) (colors are per screen)
+ * AndroidNavigationBar (app) (colors are per screen)
+ * SideMenu (app) - boolean
  */
 public class NavigationReactModule extends ReactContextBaseJavaModule {
     public static final String NAME = "NavigationReactModule";

android/app/src/main/java/com/reactnativenavigation/layouts/LayoutFactory.java

@@ -0,0 +1,54 @@
+package com.reactnativenavigation.layouts;
+
+import android.app.Activity;
+import android.support.v4.widget.DrawerLayout;
+import android.view.Gravity;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+
+import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
+import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
+
+public class LayoutFactory {
+    public static class SideMenuParams {
+        private boolean enabled;
+    }
+
+    public static class BottomTabsParams {
+
+    }
+
+    public static class Params {
+        private SideMenuParams sideMenu;
+        private BottomTabsParams bottomTabs;
+    }
+
+    public static Layout create(Activity activity, Params params) {
+        LinearLayout root = createRoot(activity);
+        FrameLayout content = createContent(activity);
+        if (params.sideMenu.enabled) {
+            createSideMenu(activity, content);
+        }
+        return null;
+    }
+
+    private static LinearLayout createRoot(Activity activity) {
+        LinearLayout root = new LinearLayout(activity);
+        root.setOrientation(LinearLayout.VERTICAL);
+        return root;
+    }
+
+    private static void createSideMenu(Activity activity, FrameLayout content) {
+        DrawerLayout drawerLayout = new DrawerLayout(activity);
+        FrameLayout drawerContent = new FrameLayout(activity);
+        drawerLayout.addView(content, new DrawerLayout.LayoutParams(MATCH_PARENT, 0, 1));
+        DrawerLayout.LayoutParams drawerContentParams = new DrawerLayout.LayoutParams(WRAP_CONTENT, MATCH_PARENT);
+        drawerContentParams.gravity = Gravity.START;
+        drawerLayout.addView(drawerContent, drawerContentParams);
+    }
+
+    private static FrameLayout createContent(Activity activity) {
+        FrameLayout content = new FrameLayout(activity);
+        return content;
+    }
+}