解决react-native-scrollable-tab-vi

解决react-native-scrollable-tab-view库在android 端执行两次onChangeTab事件

<ScrollableTabView
        style={styles.scrollViewStyle}
          initialPage={0}
          renderTabBar={() => <ScrollableTabBar/>}
          tabBarUnderlineStyle={[styles.lineStyle]}
          tabBarTextStyle={styles.tabStyle}
          // 暂时解决android onChangeTab渲染两次的问题
          onChangeTab={({i, from}) => i != from && this.tabChangeHandler(i)}
>
          <View  tabLabel={'tab1'}><Text>11 </Text></View>
           <View  tabLabel={'tab2'}><Text>12 </Text></View>
        </ScrollableTabView>

  tabChangeHandler(i, ref, from) {
    console.log(i, ref, from)
    ...
  }