Merge pull request #74 from ksairi/master

added new property in case of images' width are smaller than window's screen

Author: ArtiomShapovalov

ImageSlider.js

@@ -34,6 +34,7 @@ type PropsType = {
   onPress?: Object => void,
   customButtons?: (number, (number, animated?: boolean) => void) => Node,
   customSlide?: Slide => Node,
+  imagesWidth: number
 };
 
 type StateType = {
@@ -75,7 +76,9 @@ class ImageSlider extends Component<PropsType, StateType> {
       return;
     }
     const isUpdating = index !== this._getPosition();
-    const x = Dimensions.get('window').width * index;
+    const x = (this.props.imagesWidth ?
+	this.props.imagesWidth : Dimensions.get("window").width)
+	* index;
 
     this._ref && this._ref.scrollTo({ y: 0, x, animated });