Flutter : Step widget can not hold Expanded

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Flutter : Step widget can not hold Expanded


Widget stepPickerData(BuildContext context, SwapRequest snapData)
final makeSwapRequestBloc = MakeSwapRequestProvider.of(ctx);
Widget child1 = Container(
child: Column(
children: <Widget>[
Expanded(
child: ListTile(title: Text("w"),)
)
],
),
);
List<Step> mySteps = [
new Step(
// Title of the Step
title: Text("Step 1"),
content: child1,
isActive: true),
new Step(
title: new Text("Step 2"),
content: child2,
isActive: true),
];
return new Container(
child: new Stepper(
currentStep: this.currentStep,
steps: mySteps,
type: StepperType.horizontal,
onStepContinue: ()
if (currentStep < mySteps.length - 1)
currentStep = currentStep + 1;
else
currentStep = currentStep;

,
),
);



I have stepper widget with steps and step widget consists Expanded child.The expanded child isnot hold in step widget.



The error throwing is:



RenderFlex children have non-zero flex but incoming height constraints
are unbounded.





What is the layout that you are trying to achieve? Perhaps a diagram would help.
– Derek Lakin
Aug 6 at 15:32





Its a simple stepper widget with listview.builder inside it. Step 1: select the date Step 2 : show the selected date. Thats it. Step 2 has a listview buider inside expanded widget.
– Binay thapa
Aug 7 at 2:44





The code you've shared doesn't include the ListView builder. RenderFlex layout issues are to do with a lack of constraints (in this case height) which prevents it from working out how to lay out and size the widgets. It will be important to have the full widget tree in order to provide a complete answer.
– Derek Lakin
Aug 7 at 13:01


ListView


RenderFlex





Also, the overall layout that you're trying to achieve is important; what's in the ListView, how many items, etc? What are you trying to achieve by using Expanded (which is part of the cause of the error you're seeing)?
– Derek Lakin
Aug 7 at 13:49


Expanded





Thnank you derek for the lovely response. Here is the link for my widgets overview pasteboard.co/HyavrFs.png
– Binay thapa
Aug 8 at 4:31










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