A Flutter widget to show an icon collection to pick

icon collection

a flutter widget to show an icon collection to pick. this widget extend textfield and has a similar behavior as textformfield.

usage

in the pubspec.yaml of your flutter project, add the following dependency:

dependencies:
  ...
  icon_picker: "^1.1.0"

in your library add the following import:

import 'package:icon_picker/icon_picker.dart';

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example

iconpicker use an internal materialicon collection by default, but you can set your own icon collection.
you just need to pass in iconcollection param a map<string, icondata>.

final map<string, icondata> myiconcollection = {
  'favorite': icons.favorite,
  'home': icons.home,
  'android': icons.android,
  'album': icons.album,
  'ac_unit': icons.ac_unit,
  ...
}

iconpicker(
  initialvalue: 'favorite',
  icon: icon(icons.apps),
  labeltext: "icon",
  title: "select an icon",
  cancelbtn: "cancel",
  enablesearch: true,
  searchhint: 'search icon',
  iconcollection: myiconcollection,
  onchanged: (val) => print(val),
  onsaved: (val) => print(val),
);

the result of val in onchanged, validator and onsaved will be a json string.
so, if you tap the icon ac_unit in the dialog window, the result value will be:

'{"iconname": "ac_unit", "codepoint": 60219, "fontfamily": "materialicons"}'

transforming the string result of iconpicker in an icondata:

string value = '{"iconname": "ac_unit", "codepoint": 60219, "fontfamily": "materialicons"}'
var icondatajson = jsondecode(value);
icondata icon = icondata(icondatajson['codepoint'], fontfamily: icondatajson['fontfamily']);
icon(icon);