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App Inventor 2 SliderVertical 扩展：垂直的滑动条 · App Inventor 2 中文网
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SliderVertical 拓展
将滑块组件旋转 90º，效果如下：
代码块如下：
.aix 拓展下载：
com.SliderVertical.aix
demo下载：
TestSliderVertical.aia
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Teachable Machine 图像分类扩展 · App Inventor 2 中文网
...巴西圣卡塔琳娜联邦大学（UFSC）的”学校计算”（Computação na Escola）项目团队开发，基于 PIC（Personal Image Classifier）扩展构建。
扩展支持导入通过 Google Teachable Machine 创建并导出为 TensorFlow.js（上传至 Google Cloud）的机器学习模...
AI2 Keep Awake
... standby mode. 1) Android hat seine Powermanagement-Policy mehrmals geändert. Außerdem implementieren die verschiedenen Gerätehersteller diese Funktionen z.T. unterschiedlich. Man sollte also unbedingt testen, ob die hier gemachten Angaben für das eigene Projekt zutreffen. Das oben beschr...
使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...pp Inventor 不包含复制文件的操作。幸运的是，由于 Taifun Bär（谢谢 Taifun！），有一个 App Inventor 扩展，它提供了一个带有 TaifunFile.copy 操作的组件 TaifunFile。可以从此处下载扩展。您应该在构建 Expeditions 和 Virtuality 演示之前安装...
使用 XML 和 Web 服务 · App Inventor 2 中文网
...ng procedures step by step, while checking intermediate results, is a good idea when extracting data from complex XML structures, where there might be many steps and it’s hard to get a procedure correct on the first try.
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在 App Inventor 2 中使用图像 · App Inventor 2 中文网
...ices a dip may map to one pixel while on others it may be nine pixels. The idea is that most screens will have the same number of “dips” to an inch of screen real estate.
Developers can still give UI elements sizes in “pixels” in App Inventor, but realize those pixels are in fact dips.
Ima...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...The angle between two lines is the angle rotated by the user.
Figure 5. Idea of implementing rotation gesture. Blue points are the previous locations of fingers, and red points are the current locations of fingers. The angle rotated is the angle between the two lines formed by the fingers.
The a...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...The angle between two lines is the angle rotated by the user.
Figure 5. Idea of implementing rotation gesture. Blue points are the previous locations of fingers, and red points are the current locations of fingers. The angle rotated is the angle between the two lines formed by the fingers.
The a...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...The angle between two lines is the angle rotated by the user.
Figure 5. Idea of implementing rotation gesture. Blue points are the previous locations of fingers, and red points are the current locations of fingers. The angle rotated is the angle between the two lines formed by the fingers.
The a...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...The angle between two lines is the angle rotated by the user.
Figure 5. Idea of implementing rotation gesture. Blue points are the previous locations of fingers, and red points are the current locations of fingers. The angle rotated is the angle between the two lines formed by the fingers.
The a...