Flutter Get Screen Tap Position X & Y Coordinates

October 14, 2022

1075

Hi Guy’s Welcome to Proto Coders Point, In this Flutter tutorial let’s learn how to get tap position i.e. X & Y axis coordinates when user taps on mobile screen.

This article is a quick guide on how to get user tap position XY coordinates in flutter.

Video Tutorial

How to get touch position of user

Flutter Tap Position X & Y Coordinates

In flutter, It’s very easily to get screen tap position by using GestureDetector Widget with onTapUp or OnTapDown event function.

Example:

GestureDetector(
      onTapDown: (position){
         final tapPosition = position.globalPosition;
         final x = tapPosition.dx;
         final y = tapPosition.dy;
         // do something with x & y
      },
      child: Scaffold(/* ..Whole App UI Screen.. */)
)

Flutter GestureDetector get position XY axis coordinates

Example:

flutter gesturedetector get tapped position x y axis coordinates

Source Code for Reference:

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key}) : super(key: key);

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  Offset? _tapPosition;
  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTapDown: (position){
        setState(() {
          _tapPosition = position.globalPosition;
        });
      },
      child: Scaffold(
        appBar: AppBar(title: Text('ProtoCodersPoint.com'),centerTitle: true,),
        body: Center(
          child: Container(
            color: Colors.lightBlue,
            width: 300,
            height: 300,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Text('Tapped Position',style: TextStyle(color: Colors.white,fontSize: 30),),
                SizedBox(height: 12,),
                Text('X: ${_tapPosition?.dx.toString() ?? 'Tap SomeWhere'}',style: TextStyle(color: Colors.white,fontSize: 23),),
                SizedBox(height: 12,),
                Text('Y: ${_tapPosition?.dy.toString()?? 'Tap SomeWhere'}',style: TextStyle(color: Colors.white,fontSize: 23),)
              ],
            ),
          ),
        )
      ),
    );
  }
}