check if in Scaffold

 (){

  try{
    Scaffold.of(context);
  }catch(e){
    //not in Scaffold
  }
  return Container();
}()

When the keyboard appears, => Overflow , the Flutter widgets resize. How to prevent this?

Updated Answer

resizeToAvoidBottomPadding is now deprecated.

The updated solution is to set resizeToAvoidBottomInset property to false.

---

Original Answer

In your Scaffold, set resizeToAvoidBottomPadding property to false.

Yellow lines under Text Widgets in Flutter?

 DefaultTextStyle(

  style: TextStyle(...),
  child: Text('Hello world'),
)

get object position on screen

extension GlobalKeyExtension on GlobalKey {
  Rect? get globalPaintBounds {
    final renderObject = currentContext?.findRenderObject();
    final translation = renderObject?.getTransformTo(null).getTranslation();
    if (translation != null && renderObject?.paintBounds != null) {
      final offset = Offset(translation.x, translation.y);
      return renderObject!.paintBounds.shift(offset);
    } else {
      return null;
    }
  }
}

final containerKey = GlobalKey();

Container(
  key: containerKey,
  width: 100,
  height: 50,
)

containerKey.globalPaintBounds

MeasureSize measuredsize measure size

https://pub.dev/packages/measured_size

Error (Xcode): no --inputencoding specified and could not detect encoding from input file ios/Runner/zh_Hant.lproj/InfoP list.strings:0:0

step 1. change to UTF-8 (if the file error)

step 2. copy and paste some dummy content

"New" = "New";

"In Progress" = "In Progress";

"Waiting" = "Waiting";

"Closed" = "Closed";

Force Flutter navigator to reload state when popping

Short answer:

Use this in 1st page:

Navigator.pushNamed(context, '/page2').then((_) => setState(() {}));

and this in 2nd page:

Navigator.pop(context);