解决页面动画冲突问题 review by 草莓

@@ -25,9 +25,14 @@ export default class BrandSearch extends Component {
     }
 
     componentDidMount() {
-        this.searchBar && this.searchBar.focus();
+        this.timer = setTimeout(() => {
+            this.searchBar && this.searchBar.focus();
+        }, 0);
     }
 
+    componentWillUnmount() {
+        this.timer && clearTimeout(this.timer);
+    }
     
 
     render() {