Blur background behind dialog flutter? [closed]

Answer 1

try implementing this code

 Widget build(BuildContext context) {
  return Scaffold(
  body: Stack(
    fit: StackFit.expand,
    children: [
      Image.asset('asset url', fit: BoxFit.cover),
      blur(),
    ],
        ),
      ),
    ],
  ),
);
}


 Widget blur(){
if(
  //dialog pops up or is active
){
return BackdropFilter(

filter: ImageFilter.blur(sigmaX:5.0,sigmaY:5.0),
);
}

else{
  return Image.asset('asset url', fit: BoxFit.cover);////if dialog not active returns an unfiltered image

  }
 }