public override void initState()
{
base.initState();
this._selectedIndex = this.widget.initialTabIndex;
this._bottomPadding = 0;
this._pageController = new PageController(initialPage: this._selectedIndex);
this._articleRefreshSubId = EventBus.subscribe(sName: EventBusConstant.article_refresh, args => {
if (args.isNotNullAndEmpty())
{
TabBarItemStatus status = (TabBarItemStatus)args[0];
if (this._tabBarItemStatus != status)
{
this.setState(() => this._tabBarItemStatus = status);
}
}
});
}
void _changeTabBarItemStatus(float pixels, TabBarItemStatus status)
{
if (pixels > MediaQuery.of(context: this.context).size.height)
{
if (!this._isRefresh)
{
this._isRefresh = true;
EventBus.publish(sName: EventBusConstant.article_refresh, new List <object> {
TabBarItemStatus.toRefresh
});
}
}
else
{
if (this._isRefresh)
{
this._isRefresh = false;
EventBus.publish(sName: EventBusConstant.article_refresh, new List <object> {
status
});
}
}
}
List <Widget> _buildItems()
{
var children = new List <Widget>();
var screenWidth = MediaQuery.of(context: this.context).size.width;
this.widget.items.ForEach(item => {
Widget buildItem = new Flexible(
child: new Stack(
fit: StackFit.expand,
children: new List <Widget> {
new GestureDetector(
onTap: () => {
if (this._selectedIndex != item.index)
{
if (this.widget.tapCallBack != null)
{
if (this.widget.tapCallBack(this._selectedIndex, item.index))
{
TabBarItemStatus status;
if (this._tabBarItemStatus == TabBarItemStatus.toRefresh)
{
status = TabBarItemStatus.refreshToLeave;
}
else if (this._tabBarItemStatus == TabBarItemStatus.toHome)
{
status = TabBarItemStatus.normalAnimation;
}
else
{
status = this._tabBarItemStatus;
}
this._pageController.animateToPage(page: item.index,
TimeSpan.FromMilliseconds(1),
curve: Curves.ease);
this.setState(() => {
this._tabBarItemStatus = status;
this._selectedIndex = item.index;
});
}
}
}
else
{
if ((this._tabBarItemStatus == TabBarItemStatus.toRefresh ||
this._tabBarItemStatus == TabBarItemStatus.refreshToLeave) &&
item.index == 0)
{
EventBus.publish(sName: EventBusConstant.article_tab,
new List <object> {
item.index
});
}
}
},
child: new Container(
color: CColors.Transparent,
child: new Column(
mainAxisAlignment: MainAxisAlignment.center,
children: new List <Widget> {
new Padding(
padding: EdgeInsets.only(top: 5),
child: this._buildItemIcon(item: item)
),
new Padding(
padding: EdgeInsets.only(top: 2.5f),
child: new Text(item.title,
style: new TextStyle(fontSize: 10,
color: this._selectedIndex == item.index
? item.activeColor
: item.inActiveColor))
)
}
)
)
),
new Positioned(
left: (float)Math.Ceiling(screenWidth / 8) + 1,
top: 4,
child: new IgnorePointer(
child: new NotificationDot(
this.widget.notifications[index: item.index],
new BorderSide(color: CColors.White, 2)
)
)
)
}
)
);
children.Add(buildItem);
});
return(children);
}
