gesture_recognition 1.0.1

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gesture_recognition #

Pub support

a gesture recognition verification lock

中文 English #

Dependencies #

  gesture_recognition: ^version  

Demonstration #

Example #

Settings PassWord
	immediatelyClear: true,
	size: MediaQuery.of(context).size.width,
	onPanUp: (List<int> items) {
	  setState(() {
	    result = items;
Verify PassWord
GlobalKey<GestureState> gestureStateKey = GlobalKey();

    key: this.gestureStateKey,
    size: MediaQuery.of(context).size.width*0.8,
    onPanUp: (List<int> items) {
    onPanDown: () {
      gestureStateKey.currentState.selectColor =;
      setState(() {
        status = 0;

Parameter #

sizedoubleThe size of the component, the width is equal to the heighttrue
selectColorColorThe color when selectedColors.bluefalse
unSelectColorColorColor when not selectedColors.greyfalse
ringWidthdoubleOuter ring width of the point4false
ringRadiusdoubleInner ring radius of the point30false
showUnSelectRingboolWhether the outer ring is displayed when the point is not selectedtruefalse
circleRadiusdoubleInner radius of the point20false
lineWidthdoubleConnection line width6false
onPanUpFunction(ListAfter the finger is raisedfalse
onPanDownFunction()After pressing your fingerfalse
immediatelyClearboolClear the trace after lifting the handfalsefalse

0.0.1 #

  • TODO: Describe initial release.


import 'package:flutter/material.dart';

import 'demo/setting_page.dart';
import 'demo/verify_page.dart';

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

class MainPage extends StatelessWidget {

  void _routeToPage(BuildContext context,Widget page) {
        MaterialPageRoute(builder: (context){
          return page;

  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text("Gesture Recoginition"),),
        body: Builder(
            builder: (context) {
              return Container(
                child: Column(
                  children: <Widget>[
                        child: Container(
                          height: 60,
                          child: Center(
                            child: Text(
                              "Setting Gesture",
                              style: TextStyle(fontSize: 20,color:,
                        onPressed: () => _routeToPage(context,SettingPage())
                        child: Container(
                          height: 60,
                          child: Center(
                            child: Text(
                              "Verification Gesture",
                              style: TextStyle(fontSize: 20,color:,
                        onPressed: () => _routeToPage(context,VerifyPage())

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  gesture_recognition: ^1.0.1

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:gesture_recognition/gesture_view.dart';
import 'package:gesture_recognition/line_view.dart';
import 'package:gesture_recognition/point.dart';
import 'package:gesture_recognition/point_view.dart';
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Learn more about scoring.

We analyzed this package on Apr 8, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.7.1
  • pana: 0.13.6
  • Flutter: 1.12.13+hotfix.8

Health suggestions

Fix lib/gesture_view.dart. (-0.50 points)

Analysis of lib/gesture_view.dart reported 1 hint:

line 6 col 7: This class (or a class which this class inherits from) is marked as '@immutable', but one or more of its instance fields are not final: GestureView.points

Format lib/line_view.dart.

Run flutter format to format lib/line_view.dart.

Format lib/point.dart.

Run flutter format to format lib/point.dart.

Format lib/point_view.dart.

Run flutter format to format lib/point_view.dart.

Maintenance suggestions

The package description is too short. (-20 points)

Add more detail to the description field of pubspec.yaml. Use 60 to 180 characters to describe the package, what it does, and its target use case.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.1.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.11 1.14.12
meta 1.1.8
sky_engine 0.0.99
typed_data 1.1.6
vector_math 2.0.8
Dev dependencies