大约有 78 项符合查询结果（耗时：0.0047秒） [XML]
水果vs蔬菜智能分类器 - EdgeML图像识别项目 · App Inventor 2 中文网
...扩展已加载
3. 界面设计
组件布局：
Screen1 (主屏幕)
├── HorizontalArrangement1 (顶部按钮区)
│ ├── Button_SelectImage (选择图片)
│ └── Button_Camera (拍照)
├── Image1 (图像显示区域)
├── Label_Status (状...
SensorUtil 传感器工具扩展：在后台和屏幕关闭时保持传感器工作 · App Inv...
... 示例项目概述
示例项目包含三个屏幕：
Screen1：主控制界面，包含扩展功能
Screen2：测试 ScreenToOpen 通知属性
About：文档链接
实现概述
权限设置
前台服务设置
...
Resize image in the wiki of GitHub using Markdown
...jpg" width="324" height="324">
<p align="center">
<img src="screen1.png" width="256" height="455">
<img src="screen2.png" width="256" height="455">
<img src="screen3.png" width="256" height="455">
</p>
On above example I have used paragraph to align images s...
TCPClient TCP客户端扩展：连接TCP服务器进行文本消息通信 · App Inventor 2 中文网
...
使用示例
基本用法
当 Screen1.Initialize 时
设置 TcpClient1.RemoteAddress 为 "192.168.1.100"
设置 TcpClient1.RemotePort 为 8083
当 Button1.Click 时
调用 TcpClient1.Connect
当 TcpClient1.ConnectionStateChanged 时
设置 Label...
SVG图像加载扩展 - 第三方扩展集合 · App Inventor 2 中文网
...例
基础SVG加载 (SVGImages)
when Screen1.Initialize
do
// 从文件加载SVG
call SVGImages1.LoadFromFile "/storage/emulated/0/Documents/icon.svg"
when SVGImages1.ErrorOccurred error
do
show notification "SVG加载失败: " & error
...
FloatingActionButton 扩展：悬浮操作按钮扩展，可自定义颜色、大小、位置...
...
实现标准的 Material Design 悬浮操作按钮：
当 Screen1.初始化
调用 FloatingActionButton1.SetFabSize 按钮大小为56
调用 FloatingActionButton1.SetFabColor 按钮颜色为蓝色
调用 FloatingActionButton1.SetFabIconColor 图标颜色为白色
调...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...