easy_contact_picker: ^0.0.2

import 'package:easy_contact_picker/easy_contact_picker.dart';

<!-- 读取联系人 -->
<uses-permission android:name="android.permission.READ_CONTACTS"/>

Privacy - Contacts Usage Description

Future<List<Contact>> selectContacts() async {
    final List result =
    await _channel.invokeMethod('selectContactList');
    if (result == null) {
      return null;
    }
    List<Contact> contacts = new List();
    result.forEach((f){
      contacts.add(new Contact.fromMap(f));
    });
    return contacts;
  }

Contact _contact = new Contact(fullName: "", phoneNumber: "");
final EasyContactPicker _contactPicker = new EasyContactPicker();

_getContactData() async{
    Contact contact = await _contactPicker.selectContactWithNative();
    setState(() {
      _contact = contact;
    });
  }

Future<Contact> selectContactWithNative() async {
    final Map<dynamic, dynamic> result =
    await _channel.invokeMethod('selectContactNative');
    if (result == null) {
      return null;
    }
    return new Contact.fromMap(result);
  }

  List<Contact> _list = new List();
  final EasyContactPicker _contactPicker = new EasyContactPicker();

_getContactData() async{
    List<Contact> list = await _contactPicker.selectContacts();
    setState(() {
      _list = list;
    });
  }