listView 滚动定位，review by 孙凯

@@ -41,18 +41,10 @@ export default class SeckillTimeListView extends Component {
         //focus
         if (this.secKillProductVoList.length >= 1) {
             let listLength = this.secKillProductVoList.length;
-            let curFocusIndex = 0;
             let scrollX = 0;
-            this.secKillProductVoList.forEach((activityItem, i) => {
-                if (activityItem.get('activityId') === this.curFocusActivity.get('activityId')) {
-                    curFocusIndex = i;
-                }
-            });
-            // if (curFocusIndex > 1 && curFocusIndex < listLength-2) {
-                scrollX = (curFocusIndex - 1) * rowContainerWidth;
-                this.listView && this.listView.scrollTo({x: scrollX, y: 0, animated: true});
+            scrollX = (this.curFocusIndex - 1) * (rowContainerWidth + separatorWidth);
+            this.listView && this.listView.scrollTo({x: scrollX, y: 0, animated: true});
 
-            // }
         }
     }
 
@@ -88,6 +80,7 @@ export default class SeckillTimeListView extends Component {
                         nextActivity = nextActivity.toJS();
                         nextActivity.focus = true;
                         this.curFocusActivity= Immutable.fromJS(nextActivity);
+                        this.curFocusIndex = this.curFocusIndex + 1;
                         this._scrollToFocusActivity();
                         this.props.onFocusToCurStartedActivity && this.props.onFocusToCurStartedActivity(nextActivity);
 
@@ -118,19 +111,6 @@ export default class SeckillTimeListView extends Component {
             });
         }
 
-        let jumpToTimeoutActivity = () => {
-            this.secKillProductVoList.forEach((activityItem, i) => {
-                let nowTime = Date.parse(new Date()) / 1000 + diffTime;
-                let startTime = activityItem.get('startTime')  / 1000;
-                let offsetTime = nowTime - startTime;
-                if (activityItem.get('focus') == false && Math.abs(offsetTime) <= 2) {
-                    this.curFocusActivity= activityItem;
-                    this.curFocusIndex = i;
-                    this._scrollToFocusActivity();
-                }
-            });
-		};
-
         this.timer = setInterval(function () {
             if (!this.curFocusActivity && this.curFocusActivity.size > 0 && !this.curFocusActivity.has('over')) {
                 return;
@@ -170,6 +150,7 @@ export default class SeckillTimeListView extends Component {
 
                 rowData.focus = true;
                 this.curFocusActivity = Immutable.fromJS(rowData);//rowData;
+                this.curFocusIndex = rowID;
                 this._scrollToFocusActivity();
                 this.props.onPressTimeItem && this.props.onPressTimeItem(rowData);
             }}>
@@ -244,7 +225,7 @@ export default class SeckillTimeListView extends Component {
         } = this.props;
         diffTime = diff;
         this.secKillProductVoList = resource;
-        backgroundWidth = Math.max(rowContainerWidth * (resource.length - 1) + rowContainerFocusWidth, width);
+        backgroundWidth = Math.max((rowContainerWidth + separatorWidth) * (resource.length - 1) + rowContainerFocusWidth, width);
 
         return (
             <View style={[styles.container]}>
@@ -271,6 +252,7 @@ let backgroundHeight = 61;
 let diffTime;
 let rowContainerWidth = Math.ceil((223 * width) / 750);
 let rowContainerFocusWidth = Math.ceil((294 * width) / 750);
+let separatorWidth = 1.5;
 
 let styles = StyleSheet.create({
     container: {
@@ -331,7 +313,7 @@ let styles = StyleSheet.create({
         top: 10,
     },
     separator: {
-        width: 1.5,
+        width: separatorWidth,
         top: 11,
         height: backgroundHeight - 22,
         backgroundColor: '#dfe3e2',