public override Widget build(BuildContext context)
{
SyntaxHighlighterStyle style = Theme.of(context).brightness == Brightness.dark
? SyntaxHighlighterStyle.darkThemeStyle()
: SyntaxHighlighterStyle.lightThemeStyle();
Widget body;
if (this._exampleCode == null)
{
body = new Center(
child: new CircularProgressIndicator()
);
}
else
{
body = new SingleChildScrollView(
child: new Padding(
padding: EdgeInsets.all(16.0f),
child: new RichText(
text: new TextSpan(
style: new TextStyle(fontFamily: "monospace", fontSize: 10.0f),
children: new List <TextSpan> {
new DartSyntaxHighlighter(style).format(this._exampleCode)
}
)
)
)
);
}
return(new Scaffold(
appBar: new AppBar(
leading: new IconButton(
icon: new Icon(
Icons.clear
),
onPressed: () => { Navigator.pop(context); }
),
title: new Text("Example code")
),
body: body
));
}
public override Widget build(BuildContext context)
{
D.assert(MaterialD.debugCheckHasMaterialLocalizations(context));
if (this._controller.length == 0)
{
return(new Container(
height: TabsUtils._kTabHeight + this.widget.indicatorWeight
));
}
List <Widget> wrappedTabs = new List <Widget>();
for (int i = 0; i < this.widget.tabs.Count; i++)
{
wrappedTabs.Add(new Center(
heightFactor: 1.0f,
child: new Padding(
padding: this.widget.labelPadding ?? Constants.kTabLabelPadding,
child: new KeyedSubtree(
key: this._tabKeys[i],
child: this.widget.tabs[i]
)
)
)
);
}
if (this._controller != null)
{
int previousIndex = this._controller.previousIndex;
if (this._controller.indexIsChanging)
{
D.assert(this._currentIndex != previousIndex);
Animation <float> animation = new _ChangeAnimation(this._controller);
wrappedTabs[this._currentIndex] =
this._buildStyledTab(wrappedTabs[this._currentIndex], true, animation);
wrappedTabs[previousIndex] = this._buildStyledTab(wrappedTabs[previousIndex], false, animation);
}
else
{
int tabIndex = this._currentIndex;
Animation <float> centerAnimation = new _DragAnimation(this._controller, tabIndex);
wrappedTabs[tabIndex] = this._buildStyledTab(wrappedTabs[tabIndex], true, centerAnimation);
if (this._currentIndex > 0)
{
int previousTabIndex = this._currentIndex - 1;
Animation <float> previousAnimation =
new ReverseAnimation(new _DragAnimation(this._controller, previousTabIndex));
wrappedTabs[previousTabIndex] =
this._buildStyledTab(wrappedTabs[previousTabIndex], false, previousAnimation);
}
if (this._currentIndex < this.widget.tabs.Count - 1)
{
int nextTabIndex = this._currentIndex + 1;
Animation <float> nextAnimation =
new ReverseAnimation(new _DragAnimation(this._controller, nextTabIndex));
wrappedTabs[nextTabIndex] =
this._buildStyledTab(wrappedTabs[nextTabIndex], false, nextAnimation);
}
}
}
int tabCount = this.widget.tabs.Count;
for (int index = 0; index < tabCount; index++)
{
int tabIndex = index;
wrappedTabs[index] = new InkWell(
onTap: () => { this._handleTap(tabIndex); },
child: new Padding(
padding: EdgeInsets.only(bottom: this.widget.indicatorWeight),
child: wrappedTabs[index]
)
);
if (!this.widget.isScrollable)
{
wrappedTabs[index] = new Expanded(
child: wrappedTabs[index]);
}
}
Widget tabBar = new CustomPaint(
painter: this._indicatorPainter,
child: new _TabStyle(
animation: Animations.kAlwaysDismissedAnimation,
selected: false,
labelColor: this.widget.labelColor,
unselectedLabelColor: this.widget.unselectedLabelColor,
labelStyle: this.widget.labelStyle,
unselectedLabelStyle: this.widget.unselectedLabelStyle,
child: new _TabLabelBar(
onPerformLayout: this._saveTabOffsets,
children: wrappedTabs
)
)
);
if (this.widget.isScrollable)
{
this._scrollController = this._scrollController ?? new _TabBarScrollController(this);
tabBar = new SingleChildScrollView(
scrollDirection: Axis.horizontal,
controller: this._scrollController,
child: tabBar);
}
return(tabBar);
}