flutter_picker

pub package GitHub GitHub stars

Flutter plugin picker. Include NumberPicker, DateTimePicker, ArrayPicker, and default linkage Picker. Provide flexible parameters to meet various needs. At the same time, you can extend more functions through custom adapters.

Supported Platforms

  • Android
  • IOS

image

How to Use

# add this line to your dependencies
flutter_picker:
  git: git://github.com/yangyxd/flutter_picker.git
import 'package:flutter_picker/flutter_picker.dart';

    showPicker(BuildContext context) {
      Picker picker = new Picker(
        adapter: PickerDataAdapter<String>(pickerdata: new JsonDecoder().convert(PickerData)),
        changeToFirst: true,
        textAlign: TextAlign.left,
        columnPadding: const EdgeInsets.all(8.0),
        onConfirm: (Picker picker, List value) {
          print(value.toString());
          print(picker.getSelectedValues());
        }
      );
      picker.show(_scaffoldKey.currentState);
    }

    showPickerModal(BuildContext context) {
      new Picker(
        adapter: PickerDataAdapter<String>(pickerdata: new JsonDecoder().convert(PickerData)),
        changeToFirst: true,
        hideHeader: false,
        onConfirm: (Picker picker, List value) {
          print(value.toString());
          print(picker.adapter.text);
        }
      ).showModal(this.context); //_scaffoldKey.currentState);
    }

    showPickerIcons(BuildContext context) {
      new Picker(
        adapter: PickerDataAdapter(data: [
          new PickerItem(text: Icon(Icons.add), value: Icons.add, children: [
            new PickerItem(text: Icon(Icons.more)),
            new PickerItem(text: Icon(Icons.aspect_ratio)),
            new PickerItem(text: Icon(Icons.android)),
            new PickerItem(text: Icon(Icons.menu)),
          ]),
          new PickerItem(text: Icon(Icons.title), value: Icons.title, children: [
            new PickerItem(text: Icon(Icons.more_vert)),
            new PickerItem(text: Icon(Icons.ac_unit)),
            new PickerItem(text: Icon(Icons.access_alarm)),
            new PickerItem(text: Icon(Icons.account_balance)),
          ]),
          new PickerItem(text: Icon(Icons.face), value: Icons.face, children: [
            new PickerItem(text: Icon(Icons.add_circle_outline)),
            new PickerItem(text: Icon(Icons.add_a_photo)),
            new PickerItem(text: Icon(Icons.access_time)),
            new PickerItem(text: Icon(Icons.adjust)),
          ]),
          new PickerItem(text: Icon(Icons.linear_scale), value: Icons.linear_scale, children: [
            new PickerItem(text: Icon(Icons.assistant_photo)),
            new PickerItem(text: Icon(Icons.account_balance)),
            new PickerItem(text: Icon(Icons.airline_seat_legroom_extra)),
            new PickerItem(text: Icon(Icons.airport_shuttle)),
            new PickerItem(text: Icon(Icons.settings_bluetooth)),
          ]),
          new PickerItem(text: Icon(Icons.close), value: Icons.close),
        ]),
        title: new Text("Select Icon"),
        onConfirm: (Picker picker, List value) {
          print(value.toString());
          print(picker.getSelectedValues());
        }
    ).show(_scaffoldKey.currentState);
  }

  showPickerDialog(BuildContext context) {
    new Picker(
        adapter: PickerDataAdapter<String>(pickerdata: new JsonDecoder().convert(PickerData)),
        hideHeader: true,
        title: new Text("Select Data"),
        onConfirm: (Picker picker, List value) {
          print(value.toString());
          print(picker.getSelectedValues());
        }
    ).showDialog(context);
  }

  showPickerArray(BuildContext context) {
    new Picker(
        adapter: PickerDataAdapter<String>(pickerdata: new JsonDecoder().convert(PickerData2), isArray: true),
        hideHeader: true,
        title: new Text("Please Select"),
        onConfirm: (Picker picker, List value) {
          print(value.toString());
          print(picker.getSelectedValues());
        }
    ).showDialog(context);
  }

  showPickerNumber(BuildContext context) {
    new Picker(
        adapter: NumberPickerAdapter(data: [
          NumberPickerColumn(begin: 0, end: 999),
          NumberPickerColumn(begin: 100, end: 200),
        ]),
        delimiter: [
          PickerDelimiter(child: Container(
            width: 30.0,
            alignment: Alignment.center,
            child: Icon(Icons.more_vert),
          ))
        ],
        hideHeader: true,
        title: new Text("Please Select"),
        onConfirm: (Picker picker, List value) {
          print(value.toString());
          print(picker.getSelectedValues());
        }
    ).showDialog(context);
  }

PickerData Example

Array


const PickerData2 = '''
[
    [
        1,
        2,
        3,
        4
    ],
    [
        11,
        22,
        33,
        44
    ],
    [
        "aaa",
        "bbb",
        "ccc"
    ]
]
    ''';

Linkage

const PickerData = '''
[
    {
        "a": [
            {
                "a1": [
                    1,
                    2,
                    3,
                    4
                ]
            },
            {
                "a2": [
                    5,
                    6,
                    7,
                    8
                ]
            },
            {
                "a3": [
                    9,
                    10,
                    11,
                    12
                ]
            }
        ]
    },
    {
        "b": [
            {
                "b1": [
                    11,
                    22,
                    33,
                    44
                ]
            },
            {
                "b2": [
                    55,
                    66,
                    77,
                    88
                ]
            },
            {
                "b3": [
                    99,
                    1010,
                    1111,
                    1212
                ]
            }
        ]
    },
    {
        "c": [
            {
                "c1": [
                    "a",
                    "b",
                    "c"
                ]
            },
            {
                "c2": [
                    "aa",
                    "bb",
                    "cc"
                ]
            },
            {
                "c3": [
                    "aaa",
                    "bbb",
                    "ccc"
                ]
            }
        ]
    }
]
    ''';

Libraries

Picker
PickerLocalizationsDelegate
flutter_picker

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]