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使用位置传感器 · App Inventor 2 中文网
...置传感器
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This tutorial was developed by Professor David Wolber at The University of San Francisco.
The LocationSensor component can determine the phone’s latitude and longitude as well as a street address. You can use it to share you...
使用模拟器构建应用程序 · App Inventor 2 中文网
...orget to “unlock” the virtual phone after it starts up.
When your app is finished, you can download it to your computer just as you would if you’d been developing on a real phone.
Tips: The emulator provided with App Inventor is the standard Android emulator. You can learn more about it from...
App Inventor 2 经典蓝牙(SPP) 硬件接入：hc05 · App Inventor 2 中文网
...: Not connected to a Bluetooth device.
Error 507: unable to connect. is the device turned on?
乱码问题排查思路
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经典蓝牙硬件有很多款，但是hc05尤为常见，这里以hc05为例，介绍一下经典蓝牙模块如何...
创建自定义 TinyWebDB 服务 · App Inventor 2 中文网
...务
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TinyWebDB is an App Inventor component that allows you to store data persistently in a database on the web. Because the data is stored on the web instead of a particular phone, TinyWebDB can be used to facilitate communication between p...
App Inventor 2 控制代码块 · App Inventor 2 中文网
...围循环(for each number from to)
从列表循环（for each item in list）
从字典循环(for each key with value in dictionary)
循环(while)
如果 & 则 & 否则（if then else）
执行模块 & 返回结果（do with result）
求值但忽略结果（evaluate but ignore result）...
将 App Inventor 2 项目连接到外部传感器 · App Inventor 2 中文网
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将 App Inventor 2 项目连接到外部传感器
Note: This report describes work carried out in Spring 2014 for an Undergraduate Advanced Project in the MIT Department of Electrical Engineering and Computer Science. Funding to support this work was provided by Google ATAP
Introd...
App Inventor 2 中文网原创内容 · App Inventor 2 中文网
... 2连接模拟器一直失败的问题
【已解决】Error 908: The permission RECORD_AUDIO has been denied. Please enable it in the Settings app.
【已解决】App Inventor 2 手机AI伴侣进行测试时，为啥进度条卡在10%就一直不动？
【已解决】Bad arguments to +：The o...
FAQ Section: SMS - Frequently Asked Questions - MIT App Inventor Community
...used;
}
/* user picked a theme where the "regular" scheme is dark */
/* user picked a theme a light scheme and also enabled a dark scheme */
/* deal with light scheme first */
@media (prefers-color-scheme: light) {
:root {
--primary: #2...
指定组件的大小 · App Inventor 2 中文网
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指定组件的大小
When you create a visible component in the designer, you are typically given the opportunity to specify its height and width. There are four choices:
Automatic: Size is chosen by the system
Fill parent: Size is chosen to fill the space a...
使用 XML 和 Web 服务 · App Inventor 2 中文网
...b.XMLTextDecode takes a given XML text string and decodes it to produce a list. If the text is not well-formed XML, it will signal an error and return the empty list.
The list returned by XMLTextDecode contains one pair for each top-level tag-delimited structure in the input string. For example...