目录
功能概述
文字书写功能包含两个核心模块:
1. 简笔画工坊(DrawingWorkshop)
- Canvas 触摸绘图
- 铅笔和橡皮工具
- 8种颜色选择
- 5种画笔粗细
- 撤销/重做功能
- 清空画布
- 作品保存
2. 数字描红练习(NumberTracing)
- 数字模板显示
- 触摸描红进度追踪
- 完成奖励系统
本指南主要实现简笔画工坊功能,这是文字书写的核心能力。
项目准备
2.1 创建目录结构
在 MyApplication 项目中创建以下目录结构:
entry/src/main/ets/
├── pages/
│ └── DrawingWorkshopPage.ets (新建)
├── models/
│ └── DrawingModels.ets (新建)
├── services/
│ └── DrawingService.ets (新建)
└── components/
└── DrawingToolbar.ets (新建)
在 DevEco Studio 中,右键点击相应目录,选择 New > Directory 创建文件夹。
第一步:创建数据模型
1.1 创建 DrawingModels.ets
在 entry/src/main/ets/models/ 目录下创建 DrawingModels.ets 文件:
typescript
/**
* 绘图工具枚举
*/
export enum DrawingTool {
PENCIL = 'pencil',
ERASER = 'eraser'
}
/**
* 绘图点接口
*/
export interface DrawingPoint {
x: number;
y: number;
}
/**
* 绘图路径接口
*/
export interface DrawingPath {
tool: DrawingTool;
points: DrawingPoint[];
color: string;
width: number;
}
/**
* 颜色选项接口
*/
export interface ColorOption {
name: string;
color: string;
}
/**
* 绘画教程步骤接口
*/
export interface DrawingStep {
path: string;
description: string;
}
/**
* 绘画教程接口
*/
export interface DrawingTutorial {
id: string;
name: string;
difficulty: 'easy' | 'medium' | 'hard';
category: string;
steps: DrawingStep[];
preview: string;
}
/**
* 预设颜色选项
*/
export const COLOR_OPTIONS: ColorOption[] = [
{ name: '黑色', color: '#333333' },
{ name: '红色', color: '#EF5350' },
{ name: '橙色', color: '#FF9B71' },
{ name: '黄色', color: '#FFD700' },
{ name: '绿色', color: '#52C41A' },
{ name: '蓝色', color: '#7DD3FC' },
{ name: '紫色', color: '#B19CD9' },
{ name: '粉色', color: '#FF6B9D' }
];
/**
* 画笔粗细选项
*/
export const BRUSH_SIZES: number[] = [2, 4, 6, 8, 10];
/**
* 绘画教程数据
*/
export const DRAWING_TUTORIALS: DrawingTutorial[] = [
{
id: 'drawing_cat',
name: '小猫咪',
difficulty: 'easy',
category: 'animal',
steps: [
{ path: 'M 50,50 Q 50,30 70,30 Q 90,30 90,50', description: '画圆圆的头' },
{ path: 'M 70,50 L 70,70 L 60,80 M 70,70 L 80,80', description: '画身体和腿' },
{ path: 'M 30,40 L 45,45 M 110,40 L 95,45', description: '画两只耳朵' }
],
preview: 'drawings/cat.svg'
},
{
id: 'drawing_sun',
name: '太阳',
difficulty: 'easy',
category: 'nature',
steps: [
{ path: 'M 50,50 m -30,0 a 30,30 0 1,0 60,0 a 30,30 0 1,0 -60,0', description: '画圆形太阳' },
{ path: 'M 50,10 L 50,0 M 50,90 L 50,100', description: '画上下光芒' },
{ path: 'M 10,50 L 0,50 M 90,50 L 100,50', description: '画左右光芒' }
],
preview: 'drawings/sun.svg'
},
{
id: 'drawing_house',
name: '小房子',
difficulty: 'medium',
category: 'building',
steps: [
{ path: 'M 20,50 L 20,90 L 80,90 L 80,50', description: '画房子主体' },
{ path: 'M 10,50 L 50,20 L 90,50', description: '画屋顶' },
{ path: 'M 40,90 L 40,70 L 55,70 L 55,90', description: '画门' },
{ path: 'M 60,55 L 75,55 L 75,70 L 60,70 Z', description: '画窗户' }
],
preview: 'drawings/house.svg'
}
];
关键说明:
DrawingTool枚举定义了绘图工具类型DrawingPath记录每一笔的完整信息COLOR_OPTIONS和BRUSH_SIZES是预设的颜色和画笔大小DRAWING_TUTORIALS提供简笔画教程数据
第二步:实现服务层
2.1 创建 DrawingService.ets
在 entry/src/main/ets/services/ 目录下创建 DrawingService.ets 文件:
typescript
import { DrawingPath, DrawingTutorial, DRAWING_TUTORIALS } from '../models/DrawingModels';
/**
* 绘图服务类
* 管理绘图数据和作品保存
*/
export class DrawingService {
private static instance: DrawingService;
private constructor() {}
/**
* 获取单例实例
*/
public static getInstance(): DrawingService {
if (!DrawingService.instance) {
DrawingService.instance = new DrawingService();
}
return DrawingService.instance;
}
/**
* 获取所有绘画教程
*/
public getTutorials(): DrawingTutorial[] {
return DRAWING_TUTORIALS;
}
/**
* 根据难度筛选教程
*/
public getTutorialsByDifficulty(difficulty: 'easy' | 'medium' | 'hard'): DrawingTutorial[] {
return DRAWING_TUTORIALS.filter(t => t.difficulty === difficulty);
}
/**
* 根据分类筛选教程
*/
public getTutorialsByCategory(category: string): DrawingTutorial[] {
return DRAWING_TUTORIALS.filter(t => t.category === category);
}
/**
* 保存作品(简化版本,实际可扩展为数据库存储)
*/
public async saveArtwork(
userId: string,
title: string,
paths: DrawingPath[]
): Promise<boolean> {
try {
// 这里可以扩展为实际的数据库存储
// 目前仅做日志记录
console.info(`保存作品: ${title}, 用户: ${userId}, 路径数: ${paths.length}`);
return true;
} catch (error) {
console.error('保存作品失败:', error);
return false;
}
}
/**
* 导出作品为数据(可用于分享)
*/
public exportArtwork(paths: DrawingPath[]): string {
return JSON.stringify(paths);
}
/**
* 导入作品数据
*/
public importArtwork(data: string): DrawingPath[] | null {
try {
return JSON.parse(data) as DrawingPath[];
} catch (error) {
console.error('导入作品失败:', error);
return null;
}
}
}
// 导出单例
export const drawingService = DrawingService.getInstance();
关键说明:
- 使用单例模式管理绘图服务
- 提供教程获取、作品保存等功能
- 可扩展为数据库持久化存储
第三步:创建工具栏组件
3.1 创建 DrawingToolbar.ets
在 entry/src/main/ets/components/ 目录下创建 DrawingToolbar.ets 文件:
typescript
import { DrawingTool, ColorOption, COLOR_OPTIONS, BRUSH_SIZES } from '../models/DrawingModels';
/**
* 绘图工具栏组件
*/
@Component
export struct DrawingToolbar {
// 当前工具
@Link currentTool: DrawingTool;
// 当前颜色
@Link currentColor: string;
// 当前画笔大小
@Link currentBrushSize: number;
// 是否可撤销
@Prop canUndo: boolean = false;
// 是否可重做
@Prop canRedo: boolean = false;
// 回调函数
onUndo?: () => void;
onRedo?: () => void;
onClear?: () => void;
onSave?: () => void;
@State private showColorPicker: boolean = false;
@State private showBrushPicker: boolean = false;
build() {
Column() {
// 主工具栏
Row() {
// 铅笔工具
this.ToolButton({
icon: '✏️',
label: '铅笔',
isActive: this.currentTool === DrawingTool.PENCIL,
onClick: () => {
this.currentTool = DrawingTool.PENCIL;
}
})
// 橡皮工具
this.ToolButton({
icon: '🧽',
label: '橡皮',
isActive: this.currentTool === DrawingTool.ERASER,
onClick: () => {
this.currentTool = DrawingTool.ERASER;
}
})
// 分隔线
Divider()
.vertical(true)
.height(30)
.margin({ left: 8, right: 8 })
// 颜色选择
this.ToolButton({
icon: '🎨',
label: '颜色',
isActive: this.showColorPicker,
onClick: () => {
this.showColorPicker = !this.showColorPicker;
this.showBrushPicker = false;
}
})
// 画笔大小
this.ToolButton({
icon: '⚪',
label: '大小',
isActive: this.showBrushPicker,
onClick: () => {
this.showBrushPicker = !this.showBrushPicker;
this.showColorPicker = false;
}
})
// 分隔线
Divider()
.vertical(true)
.height(30)
.margin({ left: 8, right: 8 })
// 撤销
this.ToolButton({
icon: '↩️',
label: '撤销',
isActive: false,
isDisabled: !this.canUndo,
onClick: () => {
this.onUndo?.();
}
})
// 重做
this.ToolButton({
icon: '↪️',
label: '重做',
isActive: false,
isDisabled: !this.canRedo,
onClick: () => {
this.onRedo?.();
}
})
// 清空
this.ToolButton({
icon: '🗑️',
label: '清空',
isActive: false,
onClick: () => {
this.onClear?.();
}
})
// 保存
this.ToolButton({
icon: '💾',
label: '保存',
isActive: false,
onClick: () => {
this.onSave?.();
}
})
}
.width('100%')
.padding(12)
.backgroundColor('#F5F5F5')
.justifyContent(FlexAlign.SpaceAround)
// 颜色选择面板
if (this.showColorPicker) {
this.ColorPickerPanel()
}
// 画笔大小选择面板
if (this.showBrushPicker) {
this.BrushPickerPanel()
}
}
}
/**
* 工具按钮构建器
*/
@Builder
ToolButton(params: {
icon: string,
label: string,
isActive: boolean,
isDisabled?: boolean,
onClick: () => void
}) {
Column() {
Text(params.icon)
.fontSize(20)
Text(params.label)
.fontSize(10)
.fontColor(params.isDisabled ? '#CCCCCC' : (params.isActive ? '#1890FF' : '#666666'))
}
.padding(8)
.borderRadius(8)
.backgroundColor(params.isActive ? '#E6F7FF' : 'transparent')
.opacity(params.isDisabled ? 0.5 : 1)
.onClick(() => {
if (!params.isDisabled) {
params.onClick();
}
})
}
/**
* 颜色选择面板
*/
@Builder
ColorPickerPanel() {
Row() {
ForEach(COLOR_OPTIONS, (option: ColorOption) => {
Stack() {
Circle()
.width(32)
.height(32)
.fill(option.color)
if (this.currentColor === option.color) {
Circle()
.width(16)
.height(16)
.fill('#FFFFFF')
}
}
.margin(6)
.onClick(() => {
this.currentColor = option.color;
this.showColorPicker = false;
})
})
}
.width('100%')
.padding(12)
.backgroundColor('#FFFFFF')
.justifyContent(FlexAlign.Center)
}
/**
* 画笔大小选择面板
*/
@Builder
BrushPickerPanel() {
Row() {
ForEach(BRUSH_SIZES, (size: number) => {
Stack() {
Circle()
.width(40)
.height(40)
.fill(this.currentBrushSize === size ? '#E6F7FF' : '#F5F5F5')
Circle()
.width(size * 2)
.height(size * 2)
.fill('#333333')
}
.margin(6)
.onClick(() => {
this.currentBrushSize = size;
this.showBrushPicker = false;
})
})
}
.width('100%')
.padding(12)
.backgroundColor('#FFFFFF')
.justifyContent(FlexAlign.Center)
}
}
关键说明:
- 使用
@Link双向绑定工具状态 @Builder装饰器创建可复用的UI构建器- 颜色和画笔选择面板可展开/收起
第四步:实现绘图画布页面
4.1 创建 DrawingWorkshopPage.ets
在 entry/src/main/ets/pages/ 目录下创建 DrawingWorkshopPage.ets 文件:
typescript
import { router } from '@kit.ArkUI';
import { promptAction } from '@kit.ArkUI';
import {
DrawingTool,
DrawingPoint,
DrawingPath,
COLOR_OPTIONS,
BRUSH_SIZES
} from '../models/DrawingModels';
import { DrawingToolbar } from '../components/DrawingToolbar';
import { drawingService } from '../services/DrawingService';
/**
* 简笔画工坊页面
*/
@Entry
@Component
struct DrawingWorkshopPage {
// Canvas 设置
private settings: RenderingContextSettings = new RenderingContextSettings(true);
private canvasContext: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings);
// 绘图状态
@State private currentTool: DrawingTool = DrawingTool.PENCIL;
@State private currentColor: string = COLOR_OPTIONS[0].color;
@State private currentBrushSize: number = BRUSH_SIZES[2];
@State private isDrawing: boolean = false;
// 路径管理
@State private drawingPaths: DrawingPath[] = [];
@State private redoStack: DrawingPath[] = [];
private currentPath: DrawingPoint[] = [];
// 画布尺寸
@State private canvasWidth: number = 0;
@State private canvasHeight: number = 0;
build() {
Column() {
// 顶部导航栏
this.HeaderBar()
// 画布区域
Stack() {
Canvas(this.canvasContext)
.width('100%')
.height('100%')
.backgroundColor('#FFFFFF')
.onReady(() => {
this.initCanvas();
})
.onTouch((event: TouchEvent) => {
this.handleTouch(event);
})
.onAreaChange((oldArea: Area, newArea: Area) => {
this.canvasWidth = newArea.width as number;
this.canvasHeight = newArea.height as number;
})
}
.layoutWeight(1)
.margin(12)
.borderRadius(12)
.clip(true)
.shadow({
radius: 8,
color: 'rgba(0,0,0,0.1)',
offsetX: 0,
offsetY: 2
})
// 工具栏
DrawingToolbar({
currentTool: $currentTool,
currentColor: $currentColor,
currentBrushSize: $currentBrushSize,
canUndo: this.drawingPaths.length > 0,
canRedo: this.redoStack.length > 0,
onUndo: () => this.undo(),
onRedo: () => this.redo(),
onClear: () => this.clearCanvas(),
onSave: () => this.saveArtwork()
})
}
.width('100%')
.height('100%')
.backgroundColor('#F0F2F5')
}
/**
* 顶部导航栏
*/
@Builder
HeaderBar() {
Row() {
// 返回按钮
Text('←')
.fontSize(24)
.fontColor('#333333')
.padding(12)
.onClick(() => {
router.back();
})
// 标题
Text('简笔画工坊')
.fontSize(20)
.fontWeight(FontWeight.Bold)
.fontColor('#333333')
.layoutWeight(1)
.textAlign(TextAlign.Center)
// 占位
Text('')
.width(48)
}
.width('100%')
.height(56)
.backgroundColor('#FFFFFF')
.shadow({
radius: 4,
color: 'rgba(0,0,0,0.05)',
offsetX: 0,
offsetY: 2
})
}
/**
* 初始化画布
*/
private initCanvas(): void {
this.canvasContext.fillStyle = '#FFFFFF';
this.canvasContext.fillRect(0, 0, this.canvasWidth, this.canvasHeight);
}
/**
* 处理触摸事件
*/
private handleTouch(event: TouchEvent): void {
switch (event.type) {
case TouchType.Down:
this.onTouchStart(event);
break;
case TouchType.Move:
this.onTouchMove(event);
break;
case TouchType.Up:
case TouchType.Cancel:
this.onTouchEnd();
break;
}
}
/**
* 触摸开始
*/
private onTouchStart(event: TouchEvent): void {
this.isDrawing = true;
this.currentPath = [];
if (event.touches && event.touches.length > 0) {
const touch = event.touches[0];
this.currentPath.push({
x: touch.x,
y: touch.y
});
}
}
/**
* 触摸移动
*/
private onTouchMove(event: TouchEvent): void {
if (!this.isDrawing) return;
if (event.touches && event.touches.length > 0) {
const touch = event.touches[0];
this.currentPath.push({
x: touch.x,
y: touch.y
});
this.drawCurrentPath();
}
}
/**
* 触摸结束
*/
private onTouchEnd(): void {
if (this.isDrawing && this.currentPath.length > 0) {
// 保存当前路径
const newPath: DrawingPath = {
tool: this.currentTool,
points: [...this.currentPath],
color: this.currentTool === DrawingTool.PENCIL
? this.currentColor
: '#FFFFFF',
width: this.currentTool === DrawingTool.PENCIL
? this.currentBrushSize
: 20
};
this.drawingPaths.push(newPath);
// 清空重做栈
this.redoStack = [];
}
this.isDrawing = false;
this.currentPath = [];
}
/**
* 绘制当前路径
*/
private drawCurrentPath(): void {
if (!this.canvasContext || this.currentPath.length < 2) return;
// 设置绘制样式
this.canvasContext.strokeStyle = this.currentTool === DrawingTool.PENCIL
? this.currentColor
: '#FFFFFF';
this.canvasContext.lineWidth = this.currentTool === DrawingTool.PENCIL
? this.currentBrushSize
: 20;
this.canvasContext.lineCap = 'round';
this.canvasContext.lineJoin = 'round';
// 绘制路径
this.canvasContext.beginPath();
this.canvasContext.moveTo(this.currentPath[0].x, this.currentPath[0].y);
for (let i = 1; i < this.currentPath.length; i++) {
this.canvasContext.lineTo(this.currentPath[i].x, this.currentPath[i].y);
}
this.canvasContext.stroke();
}
/**
* 重绘整个画布
*/
private redrawCanvas(): void {
// 清空画布
this.canvasContext.fillStyle = '#FFFFFF';
this.canvasContext.fillRect(0, 0, this.canvasWidth, this.canvasHeight);
// 重绘所有路径
for (const path of this.drawingPaths) {
this.drawPath(path);
}
}
/**
* 绘制单个路径
*/
private drawPath(path: DrawingPath): void {
if (path.points.length < 2) return;
this.canvasContext.strokeStyle = path.color;
this.canvasContext.lineWidth = path.width;
this.canvasContext.lineCap = 'round';
this.canvasContext.lineJoin = 'round';
this.canvasContext.beginPath();
this.canvasContext.moveTo(path.points[0].x, path.points[0].y);
for (let i = 1; i < path.points.length; i++) {
this.canvasContext.lineTo(path.points[i].x, path.points[i].y);
}
this.canvasContext.stroke();
}
/**
* 撤销
*/
private undo(): void {
if (this.drawingPaths.length === 0) return;
// 将最后一条路径移到重做栈
const lastPath = this.drawingPaths.pop();
if (lastPath) {
this.redoStack.push(lastPath);
}
this.redrawCanvas();
}
/**
* 重做
*/
private redo(): void {
if (this.redoStack.length === 0) return;
// 从重做栈恢复路径
const lastPath = this.redoStack.pop();
if (lastPath) {
this.drawingPaths.push(lastPath);
}
this.redrawCanvas();
}
/**
* 清空画布
*/
private clearCanvas(): void {
// 显示确认对话框
promptAction.showDialog({
title: '清空画布',
message: '确定要清空所有内容吗?此操作不可撤销。',
buttons: [
{ text: '取消', color: '#666666' },
{ text: '确定', color: '#FF4D4F' }
]
}).then((result) => {
if (result.index === 1) {
this.drawingPaths = [];
this.redoStack = [];
this.initCanvas();
promptAction.showToast({
message: '画布已清空',
duration: 1500
});
}
});
}
/**
* 保存作品
*/
private async saveArtwork(): Promise<void> {
if (this.drawingPaths.length === 0) {
promptAction.showToast({
message: '请先画点什么吧',
duration: 2000
});
return;
}
try {
// 保存作品
const success = await drawingService.saveArtwork(
'default_user', // 可替换为实际用户ID
'我的画作',
this.drawingPaths
);
if (success) {
promptAction.showToast({
message: '作品已保存 ✨',
duration: 2000
});
} else {
promptAction.showToast({
message: '保存失败,请重试',
duration: 2000
});
}
} catch (error) {
console.error('保存作品失败:', error);
promptAction.showToast({
message: '保存失败,请重试',
duration: 2000
});
}
}
}
关键说明:
-
Canvas 初始化
- 使用
RenderingContextSettings创建渲染上下文 onReady回调中初始化画布
- 使用
-
触摸事件处理
TouchType.Down: 开始绘制TouchType.Move: 持续绘制TouchType.Up: 结束绘制并保存路径
-
路径管理
drawingPaths: 已完成的路径列表redoStack: 撤销的路径栈currentPath: 当前正在绘制的点
-
绘制逻辑
- 实时绘制当前笔画
- 撤销/重做时重绘整个画布
第五步:配置路由
5.1 更新 main_pages.json
打开 entry/src/main/resources/base/profile/main_pages.json,添加新页面:
json
{
"src": [
"pages/Index",
"pages/DrawingWorkshopPage"
]
}
第六步:添加入口导航
6.1 更新 Index.ets
修改 entry/src/main/ets/pages/Index.ets,添加导航按钮:
typescript
import { router } from '@kit.ArkUI';
@Entry
@Component
struct Index {
@State message: string = 'MyApplication';
build() {
Column() {
// 标题
Text(this.message)
.fontSize(32)
.fontWeight(FontWeight.Bold)
.fontColor('#333333')
.margin({ top: 60, bottom: 40 })
// 功能入口按钮
Button('进入简笔画工坊')
.width('80%')
.height(56)
.fontSize(18)
.fontColor('#FFFFFF')
.backgroundColor('#1890FF')
.borderRadius(28)
.shadow({
radius: 8,
color: 'rgba(24, 144, 255, 0.3)',
offsetX: 0,
offsetY: 4
})
.onClick(() => {
router.pushUrl({
url: 'pages/DrawingWorkshopPage'
});
})
// 说明文字
Text('点击按钮开始你的创作之旅')
.fontSize(14)
.fontColor('#999999')
.margin({ top: 20 })
}
.width('100%')
.height('100%')
.backgroundColor('#F5F5F5')
.justifyContent(FlexAlign.Start)
.alignItems(HorizontalAlign.Center)
}
}
功能测试
7.1 编译运行
- 在 DevEco Studio 中点击
Build > Build Hap(s)/APP(s) > Build Hap(s) - 连接模拟器或真机
- 点击运行按钮
7.2 功能测试清单
| 功能 | 测试步骤 | 预期结果 |
|---|---|---|
| 页面导航 | 点击"进入简笔画工坊"按钮 | 跳转到绘图页面 |
| 铅笔绘制 | 在画布上滑动手指 | 绘制黑色线条 |
| 颜色切换 | 点击颜色按钮,选择红色 | 切换后绘制红色线条 |
| 画笔大小 | 点击大小按钮,选择最粗 | 线条变粗 |
| 橡皮擦 | 切换橡皮,在线条上滑动 | 擦除线条 |
| 撤销 | 绘制后点击撤销 | 删除最后一笔 |
| 重做 | 撤销后点击重做 | 恢复最后一笔 |
| 清空 | 点击清空,确认 | 清空所有内容 |
| 保存 | 点击保存 | 显示保存成功提示 |
| 返回 | 点击左上角返回 | 返回主页 |
扩展功能
8.1 添加数字描红功能
创建 NumberTracingPage.ets,实现数字描红练习:
typescript
// 简化版示例,完整代码参考 DigitalSprouting
@Entry
@Component
struct NumberTracingPage {
@State private number: number = 0;
@State private progress: number = 0;
build() {
Column() {
// 数字显示
Text(this.number.toString())
.fontSize(200)
.fontColor('#E0E0E0')
.fontWeight(FontWeight.Bold)
// 进度条
Progress({ value: this.progress, total: 100 })
.width('80%')
.height(20)
// 操作按钮
Row() {
Button('上一个')
.onClick(() => {
if (this.number > 0) {
this.number--;
this.progress = 0;
}
})
Button('下一个')
.onClick(() => {
if (this.number < 9) {
this.number++;
this.progress = 0;
}
})
}
.margin({ top: 40 })
}
.width('100%')
.height('100%')
.justifyContent(FlexAlign.Center)
}
}
8.2 添加音效反馈
集成音效服务,在以下场景播放音效:
- 切换工具
- 完成绘制
- 保存成功
- 清空画布
8.3 添加手势识别
扩展功能以支持:
- 双指缩放画布
- 长按工具按钮显示更多选项
- 摇一摇清空画布
8.4 添加作品库
创建作品管理功能:
- 保存作品到本地数据库
- 查看历史作品
- 分享作品
常见问题
Q1: Canvas 不显示?
A : 确保 Canvas 组件有明确的宽高,且 onReady 回调已执行。
Q2: 触摸坐标不准确?
A: 检查 Canvas 组件的父容器是否有额外的 padding 或 margin。
Q3: 撤销/重做不工作?
A : 确保每次 onTouchEnd 时都将路径添加到 drawingPaths。
Q4: 编译报错找不到模块?
A: 检查 import 路径是否正确,确保所有文件都已创建。
总结
通过本指南,您已经成功实现了:
- ✅ 数据模型定义(DrawingModels)
- ✅ 绘图服务(DrawingService)
- ✅ 工具栏组件(DrawingToolbar)
- ✅ 绘图画布页面(DrawingWorkshopPage)
- ✅ 路由配置
- ✅ 入口导航
这个简笔画工坊具备了完整的绘图功能,您可以在此基础上继续扩展更多特性。
参考资源
效果

源代码
https://gitcode.com/daleishen/jianbihua/tree/main
班级链接