google_places_flutter 1.0.4

Custom Google places autocomplete widget for Android and iOS both. Use https://pub.dev/packages/google_places_flutter

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:google_places_flutter/google_places_flutter.dart';
import 'package:google_places_flutter/model/prediction.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  TextEditingController controller = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(
          // Column is also a layout widget. It takes a list of children and
          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
          //
          // Invoke "debug painting" (press "p" in the console, choose the
          // "Toggle Debug Paint" action from the Flutter Inspector in Android
          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
          // to see the wireframe for each widget.
          //
          // Column has various properties to control how it sizes itself and
          // how it positions its children. Here we use mainAxisAlignment to
          // center the children vertically; the main axis here is the vertical
          // axis because Columns are vertical (the cross axis would be
          // horizontal).
          mainAxisAlignment: MainAxisAlignment.start,
          children: <Widget>[
            SizedBox(height:20),
            placesAutoCompleteTextField(),
          ],
        ),
      ),
    );
  }

  placesAutoCompleteTextField() {
    return GooglePlaceAutoCompleteTextField(
        textEditingController: controller,
        googleAPIKey: "YOUR_GOOGLE_API_KEY",
        inputDecoration: InputDecoration(),
        debounceTime: 8000 ,
        itmClick: (Prediction prediction) {
          controller.text=prediction.description;
          controller.selection = TextSelection.fromPosition(TextPosition(offset: prediction.description.length));
        }
      // default 600 ms ,
        );
  }
}