flutter pub add whiteboardkit基于插件公开信息、社区数据与项目使用情况整理的选型参考。
WhiteboardKit 是一个 Flutter 包，提供了一个功能完整的白板实现，配备直观的绘图工具箱。它使用户能够使用可自定义的工具（如笔、记号笔和橡皮擦）在画布上进行绘制、擦除和注释。设计简洁且性能出色，支持触摸输入，并能无缝集成到需要实时草图或协作注释的应用程序中。适用于教育、设计或笔记类应用，可在各种设备上提供流畅且响应迅速的绘图体验。
以下为关联源码仓库的 README 原文快照，最新内容请访问源码仓库。
A Flutter whiteboard widget with so much extendability and flexibility to be used with no need to rewrite your own whiteboard. Enjoy !
live demo: https://abdulaziz-mohammed.github.io/whiteboardkit
import whiteboardkit.dart
import 'package:whiteboardkit/whiteboardkit.dart';
Define DrawingController and listen to change event:
DrawingController controller;
@override
void initState() {
controller = new DrawingController();
controller.onChange().listen((draw){
//do something with it
});
super.initState();
}
Place your Whiteboard inside a constrained widget ie. Container,Expanded etc
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: Whiteboard(
controller: controller,
),
),
],
),
),
);
}
Define PlaybackController and supply it with a WhiteboardDraw object:
PlaybackController controller;
@override
void initState() {
var draw = WhiteboardDraw.fromWhiteboardSVG("<svg...");
controller = new PlaybackController(draw);
super.initState();
}
Place your Whiteboard inside a constrained widget ie. Container,Expanded etc
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: Whiteboard(
controller: controller,
),
),
],
),
),
);
}
Define SketchStreamController:
PlayerController controller;
@override
void initState() {
controller = new SketchStreamController();
super.initState();
}
Place your Whiteboard inside a constrained widget ie. Container,Expanded etc
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: Whiteboard(
controller: controller,
),
),
],
),
),
);
}
Later, supply it with DrawChunk when recived from DrawingController:
controller.addChunk(chunk);
You'l need to enable chunks producing in DrawingController then start listening to new chunks:
controller = new DrawingController(enableChunk: true);
_chunkSubscription = controller.onChunk().listen((chunk) {
}
DrawChunk supports:
chunk.toJson()DrawChunk.fromJson("...")
WhiteboardDraw class:Map<String, dynamic> toJson()WhiteboardDraw.fromJson(Map<String, dynamic> json)string getSVG():依赖清单 5 项
^2.4.1^8.4.0^3.0.1^2.2.0^3.3.1暂无相关数据。