Add support to exprimental components and get component ref

lib/createResponsiveComponent.js

@@ -7,6 +7,8 @@ import getCurrentOrientation from './getCurrentOrientation';
 import getStyleByOrientation from './getStyleByOrientation';
 
 export default function createResponsiveComponent(ComponentClass: ReactClass<any>) {
+  if (!ComponentClass) return;
+  let _componentRef = null;
   return React.createClass({
     displayName: `Responsive${ComponentClass.displayName}`,
     propTypes: {
@@ -37,6 +39,14 @@ export default function createResponsiveComponent(ComponentClass: ReactClass<any
       });
     },
 
+    getComponentRef() {
+        return _componentRef;
+    },
+
+    _setComponentRef(componentRef) {
+        _componentRef = componentRef;
+    },
+
     render() {
       const orientation = this.state.orientation;
       const { style, children, ...props } = this.props;
@@ -48,7 +58,7 @@ export default function createResponsiveComponent(ComponentClass: ReactClass<any
         : getStyle(style);
 
       return (
-        <ComponentClass style={resolvedStyle} {...props}>
+        <ComponentClass style={resolvedStyle} {...props} ref={this._setComponentRef}>
           {children}
         </ComponentClass>
       );