Merge pull request lanjingling0510#45 from Asgator/bugfix-empty-ref-s…

…croll Fix empty ref scroll
Maks113 · Jul 23, 2019 · 279fb4b · 279fb4b
2 parents f66ca96 + 2ff462b
commit 279fb4b
Showing 1 changed file with 7 additions and 5 deletions.
diff --git a/lib/DatePickerItem.js b/lib/DatePickerItem.js
@@ -41,6 +41,7 @@ class DatePickerItem extends Component<void, Props, State> {
         this.translateY = 0;                    // 容器偏移的距离
         this.currentIndex = MIDDLE_INDEX;       // 滑动中当前日期的索引
         this.moveDateCount = 0;                 // 一次滑动移动了多少个时间
+        this._moveToTimer = null;
 
         this.state = {
             translateY: MIDDLE_Y,
@@ -97,6 +98,8 @@ class DatePickerItem extends Component<void, Props, State> {
         viewport.removeEventListener('touchmove', this.handleContentTouch, false);
         viewport.removeEventListener('touchend', this.handleContentTouch, false);
         viewport.removeEventListener('mousedown', this.handleContentMouseDown, false);
+
+        clearTimeout(this._moveToTimer);
     }
 
     _iniDates(date) {
@@ -160,26 +163,25 @@ class DatePickerItem extends Component<void, Props, State> {
             this._updateDates(-1);
         }
 
-        this._moveTo(this.refs.scroll, this.currentIndex);
+        this._moveTo(this.currentIndex);
     }
 
     /**
      * 添加滑动动画
-     * @param  {DOM} obj   DOM对象
      * @param  {number} angle 角度
      * @return {undefined}
      */
-    _moveTo(obj, currentIndex) {
+    _moveTo(currentIndex) {
         this.animating = true;
 
-        addPrefixCss(obj, { transition: 'transform .2s ease-out' });
+        addPrefixCss(this.refs.scroll, { transition: 'transform .2s ease-out' });
 
         this.setState({
             translateY: -currentIndex * DATE_HEIGHT,
         });
 
         // NOTE: There is no transitionend, setTimeout is used instead.
-        setTimeout(() => {
+        this._moveToTimer = setTimeout(() => {
             this.animating = false;
             this.props.onSelect(this.state.dates[MIDDLE_INDEX]);
             this._clearTransition(this.refs.scroll);