fix: should get view length from the container node

Author: Berton Zhu

packages/react-swipeable-views/src/SwipeableViews.js

@@ -364,7 +364,7 @@ class SwipeableViews extends React.Component {
 
     const touch = applyRotationMatrix(event.touches[0], axis);
 
-    this.viewLength = this.rootNode.getBoundingClientRect()[axisProperties.length[axis]];
+    this.viewLength = this.containerNode.getBoundingClientRect()[axisProperties.length[axis]];
     this.startX = touch.pageX;
     this.lastX = touch.pageX;
     this.vx = 0;