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Flutter PopupMenuButton onLongPressed

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1

I'm trying to show a menu context on a custom widget I created when it is long pressed(on tap has another behaviour).

I tried to use GestureDetector with onLongPress and use the function showMenu but it shows the menu in the corner, not over the widget pressed. I've seen a workaround to get the position of the widget and pass it to the showMenu but it looks messy to me.

 return new GestureDetector(
 child: _defaultBuild(),
 onTap: onTap,
 onLongPress: () 
 showMenu(
 items: <PopupMenuEntry>[
 PopupMenuItem(
 //value: this._index,
 child: Row(
 children: <Widget>[
 Text("Context item1")
 ],
 ),
 )
 ],
 context: context,
 position: _getPosition(context)
 );
 
);
RelativeRect _getPosition(BuildContext context) 
 final RenderBox bar = context.findRenderObject();
 final RenderBox overlay = Overlay.of(context).context.findRenderObject();
 final RelativeRect position = RelativeRect.fromRect(
 Rect.fromPoints(
 bar.localToGlobal(bar.size.bottomRight(Offset.zero), ancestor: overlay),
 bar.localToGlobal(bar.size.bottomRight(Offset.zero), ancestor: overlay),
 ),
 Offset.zero & overlay.size,
);
return position;

I've tried also to use PopupMenuButton but I wasn't able to show the menu onLongPressed.

Any ideas?

flutter long-press popupmenubutton

share|improve this question

edited Mar 9 at 18:53

niegus

asked Mar 8 at 18:45

niegusniegus

3231619

add a comment | 

1

I'm trying to show a menu context on a custom widget I created when it is long pressed(on tap has another behaviour).

I tried to use GestureDetector with onLongPress and use the function showMenu but it shows the menu in the corner, not over the widget pressed. I've seen a workaround to get the position of the widget and pass it to the showMenu but it looks messy to me.

 return new GestureDetector(
 child: _defaultBuild(),
 onTap: onTap,
 onLongPress: () 
 showMenu(
 items: <PopupMenuEntry>[
 PopupMenuItem(
 //value: this._index,
 child: Row(
 children: <Widget>[
 Text("Context item1")
 ],
 ),
 )
 ],
 context: context,
 position: _getPosition(context)
 );
 
);
RelativeRect _getPosition(BuildContext context) 
 final RenderBox bar = context.findRenderObject();
 final RenderBox overlay = Overlay.of(context).context.findRenderObject();
 final RelativeRect position = RelativeRect.fromRect(
 Rect.fromPoints(
 bar.localToGlobal(bar.size.bottomRight(Offset.zero), ancestor: overlay),
 bar.localToGlobal(bar.size.bottomRight(Offset.zero), ancestor: overlay),
 ),
 Offset.zero & overlay.size,
);
return position;

I've tried also to use PopupMenuButton but I wasn't able to show the menu onLongPressed.

Any ideas?

flutter long-press popupmenubutton

share|improve this question

edited Mar 9 at 18:53

niegus

asked Mar 8 at 18:45

niegusniegus

3231619

add a comment | 

I'm trying to show a menu context on a custom widget I created when it is long pressed(on tap has another behaviour).

I tried to use GestureDetector with onLongPress and use the function showMenu but it shows the menu in the corner, not over the widget pressed. I've seen a workaround to get the position of the widget and pass it to the showMenu but it looks messy to me.

 return new GestureDetector(
 child: _defaultBuild(),
 onTap: onTap,
 onLongPress: () 
 showMenu(
 items: <PopupMenuEntry>[
 PopupMenuItem(
 //value: this._index,
 child: Row(
 children: <Widget>[
 Text("Context item1")
 ],
 ),
 )
 ],
 context: context,
 position: _getPosition(context)
 );
 
);
RelativeRect _getPosition(BuildContext context) 
 final RenderBox bar = context.findRenderObject();
 final RenderBox overlay = Overlay.of(context).context.findRenderObject();
 final RelativeRect position = RelativeRect.fromRect(
 Rect.fromPoints(
 bar.localToGlobal(bar.size.bottomRight(Offset.zero), ancestor: overlay),
 bar.localToGlobal(bar.size.bottomRight(Offset.zero), ancestor: overlay),
 ),
 Offset.zero & overlay.size,
);
return position;

I've tried also to use PopupMenuButton but I wasn't able to show the menu onLongPressed.

Any ideas?

flutter long-press popupmenubutton

share|improve this question

edited Mar 9 at 18:53

niegus

asked Mar 8 at 18:45

niegusniegus

3231619

 return new GestureDetector(
 child: _defaultBuild(),
 onTap: onTap,
 onLongPress: () 
 showMenu(
 items: <PopupMenuEntry>[
 PopupMenuItem(
 //value: this._index,
 child: Row(
 children: <Widget>[
 Text("Context item1")
 ],
 ),
 )
 ],
 context: context,
 position: _getPosition(context)
 );
 
);
RelativeRect _getPosition(BuildContext context) 
 final RenderBox bar = context.findRenderObject();
 final RenderBox overlay = Overlay.of(context).context.findRenderObject();
 final RelativeRect position = RelativeRect.fromRect(
 Rect.fromPoints(
 bar.localToGlobal(bar.size.bottomRight(Offset.zero), ancestor: overlay),
 bar.localToGlobal(bar.size.bottomRight(Offset.zero), ancestor: overlay),
 ),
 Offset.zero & overlay.size,
);
return position;

flutter long-press popupmenubutton

flutter long-press popupmenubutton

share|improve this question

edited Mar 9 at 18:53

niegus

asked Mar 8 at 18:45

niegusniegus

3231619

share|improve this question

edited Mar 9 at 18:53

niegus

asked Mar 8 at 18:45

niegusniegus

3231619

asked Mar 8 at 18:45

niegusniegus

3231619

asked Mar 8 at 18:45

niegusniegus

3231619