Navigator.pop(context) isn't working in GestureDetector

How to make Navigator.pop(context) work in GestureDetector?
I think the problem with SingleChildScrollView, but I don’t understand how to fix it.

 Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: greyGood,
      body: SizedBox(
        width: double.infinity,
        height: double.infinity,
        child: Stack(
          children: [
            SizedBox(
              height: 350,
              width: double.infinity,
              child: Image.asset(
                widget.photo,
                fit: BoxFit.cover,
              ),
            ),
            SafeArea(
              child: Padding(
                padding: const EdgeInsets.only(left: 10),
                child: IconButton(
                  icon: Icon(Icons.arrow_back_ios_new_rounded),
                  onPressed: () {
                    Navigator.of(context).pop;
                  },
                ),
              ),
            ),
            Positioned(
              top: 0,
              left: 0,
              right: 0,
              bottom: 0,
              child: SingleChildScrollView(
                child: Column(

I tried use

setState(() {
          Navigator.pop(context);
});

and tried to replace with

IconButton(
     icon: Icon(Icons.arrow_back_ios_new_rounded),
     onPressed: () {
     Navigator.pop(context);
  },
),

but it isn’t worked for me

>Solution :

Move SafeArea widget after Positioned in list. The problem is that the Positioned is over SafeArea and gestures was not recognized.

Also instead of pop;, you have to use pop();