fix: hash based urls enabled

Author: vip-git

src/demo/DemoHome.jsx

@@ -12,7 +12,15 @@ class Demo extends React.Component {
     selectedDemo: examples.simple,
   }
 
-  onSelectMenuItem = (type) => () => {
+  componentDidMount() {
+    const selectedHash = window.location.hash.replace('#', '');
+    if (examples[selectedHash]) {
+      this.setState({ selectedDemo: examples[selectedHash] });
+    }
+  }
+
+  onSelectMenuItem = (type, keyType) => () => {
+    window.location.hash = keyType;
     this.setState({ selectedDemo: type });
   }
 

src/demo/menu/MenuItems.jsx

@@ -20,7 +20,7 @@ export default withStyles(menuStyles)(({ toggleDrawer, classes, onSelectMenuItem
     <List subheader={<ListSubheader component='div'>Showcase</ListSubheader>}>
       {keys(examples).map((e) => (
         <ListItem key={e} button>
-          <ListItemText primary={examples[e].title} onClick={onSelectMenuItem(examples[e])} />
+          <ListItemText primary={examples[e].title} onClick={onSelectMenuItem(examples[e], e)} />
         </ListItem>
       ))}
     </List>