Tooltip onTap rather than onLongPress possible? - flutter

Question

there's no named parameters to configure a single tap to trigger Tooltip,
my feeling about the default longPress interaction is that users cannot find this deep-buried function.
I tried to find some hint in tooltip source code but failed.
Tooltip(
message: 'this is something',
child: SizedBox(...),
)

Answer 1

First, define globalkey: GlobalKey _toolTipKey = GlobalKey();
Then wrap your tooltip:
GestureDetector(
onTap: () {
final dynamic _toolTip = _toolTipKey.currentState;
_toolTip.ensureTooltipVisible();
},
child: Tooltip(
key: _toolTipKey,
message: "Your message",
child: Icon(
Icons.info,
),
),
),

Answer 2

Easiest way is to use:
triggerMode: TooltipTriggerMode.tap
Here's an example:
Tooltip(
triggerMode: TooltipTriggerMode.tap,
message: 'this is something',
child: SizedBox(...),
)

Answer 3

The easiest way to get a functionality you need is to clone the original Tooltip widget (call it e.g. TooltipCustom) and change inner GestureDetector behavior.
Particularly replace onLongPress to onTap:
class TooltipCustom extends StatefulWidget {
/// Creates a tooltip.
...
#override
Widget build(BuildContext context) {
...
Widget result = GestureDetector(
behavior: HitTestBehavior.opaque,
onTap: _handleLongPress,
excludeFromSemantics: true,
child: Semantics(
label: excludeFromSemantics ? null : widget.message,
child: widget.child,
),
);
...
return result;
}
}
P.S. It's possible to lose a tooltip hiding feature. Take a look at _handlePointerEvent(PointerEvent event) handler function and realize a proper call of _hideTooltip() method.