void _handleTap()
{
if (this.widget.isAnimation)
{
this._rotationController.forward();
}
else
{
if (!this._isDropdown)
{
this.setState(() => this._isDropdown = true);
}
}
var renderBox = (RenderBox)this._dropdownKey.currentContext.findRenderObject();
var position = renderBox.localToGlobal(new Offset(0, dy: renderBox.size.height));
this._dropdownRoute = new _CustomDropdownRoute <T>(
items: this.widget.items,
position: position,
this._selectedIndex ?? 0,
elevation: this.widget.elevation,
isAnimation: this.widget.isAnimation,
headerWidget: this.widget.headerWidget,
footerWidget: this.widget.footerWidget,
style: this.widget.style
);
Navigator.push(context: this.context, route: this._dropdownRoute).Then(newValue => {
if (this.widget.isAnimation)
{
this._rotationController.reverse();
}
else
{
if (this._isDropdown)
{
this.setState(() => this._isDropdown = false);
}
}
this._dropdownRoute = null;
if (!this.mounted || newValue == null)
{
return;
}
this.widget.onChanged?.Invoke((T)newValue);
});
}
void _removeDropdownRoute()
{
this._dropdownRoute?.dismiss();
this._dropdownRoute = null;
}
