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扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...detected. This function returns the angle.
One noteworthy finding when we tested the component is that $MotionEvent.ACTION_MOVE$ is too sensitive. A tiny movement with fingers will invoke this event, so it detects the rotation even when we do not intend it to. In order to solve this problem, we add...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...detected. This function returns the angle.
One noteworthy finding when we tested the component is that $MotionEvent.ACTION_MOVE$ is too sensitive. A tiny movement with fingers will invoke this event, so it detects the rotation even when we do not intend it to. In order to solve this problem, we add...
App Inventor 2 扩展 · App Inventor 2 中文网
...ample component
3.2 Convert your sample component to an extension
3.2.2 Test your extension
3.3 Details on creating extensions
3.3.1 When you start to build
3.3.2 Requesting permissions for the extensions you define
3.2.3 Using external libraries
3.2.4 Choosing a package name for your extens...
BLE协议—广播和扫描 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...Host，为后续建立链路做准备。主动扫描不仅仅可以扫描到对端设备的广播数据包，还可以捕获对端设备的响应包（回应包）。被动扫描：设备被动扫描周围环境中对等设备发送出来的广播包并直接上报到Host。不连接的情况下常...
Google Sheets API Setup · App Inventor 2 中文网
... 我要 分享 扫码分享到朋友圈 顶部 var qrcode = new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" ...
Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...实际往往需要在单进程环境中执行多个任务，这时就要用到多线程模式，每个线程处理各自独立的任务，这样可以改善程序的效率。一个进程中的所有线程都可以访问该进程的所有资源，因此对于多线程的同步控制较为容易，而...
Fast permutation -> number -> permutation mapping algorithms
...ring length. This answer is indeed less efficient.
– 把友情留在无盐
Feb 7 '19 at 1:10
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
... 我要 分享 扫码分享到朋友圈 顶部 var qrcode = new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" ...
在 App Inventor 2 中使用图像 · App Inventor 2 中文网
... 我要 分享 扫码分享到朋友圈 顶部 var qrcode = new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" ...
乐高机器人®组件 · App Inventor 2 中文网
... 我要 分享 扫码分享到朋友圈 顶部 var qrcode = new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" ...