英文资料显示，可能是蓝牙设备问题未开机之类的，也可能是连接相关的代码写的不对，用的错误的地址连接等。 一般来说多是使用 hc05 经典蓝牙连接出现的问题，配对后没通电开机，会报这个错误。配对后硬件发生变...

如题，按钮的长按事件待研究。 使用计时器、计数器变量以及按钮.按下和弹起事件，可以实现，参考代码如下： 英文社区中的方案都是类似这样实现的，是一个不错的方案。 来自：https://community.appinventor.mit.edu/t/long...

GestureDetector 手势检测拓展，用于检测手势，例如向上/向下/向右/向左滑动和双击、单击、长按 它太容易使用了。只需在布局块中输入一个布局组件即可。 然后，您就可以使用所有事件了。 来源：https://community.kodular....

https://community.kodular.io/t/f ... ols-extension/78798 https://community.appinventor.mi ... ols-extension/15803 https://community.appinventor.mi ... hin-a-label/65831/9

[size=15.008px]A simple extension to create bottom navigation bar like above,[size=15.008px]Created using Rush. [size=15.008px]Untitled[size=15.008px]328×585 15.4 KB [size=15.008px]Screenshot_20240627-102612[size=15.008px]1080×2340 136 KB[size=15.008px] [size=15.008px]https://...

...ncludes not only the HTML, but some JavaScript (for functionality), images and CSS (for styling). I'm planning on open-sourcing this application, so users should simply be able to run a Makefile and all the resources will go where they need to go. However, I'd also like to be able to simply distribu...

... *x ^= *y; } } Why the test? The test is to ensure that x and y have different memory locations (rather than different values). This is because (p xor p) = 0 and if both x and y share the same memory location, when one is set to 0, both are set to 0. When both *x and *y are 0, all o...

I want to format date as mm/dd/yyyy . I tried the following and none of it works for me. Can anyone help me with this? 15 ...

We're just starting a UNIX class and are learning a variety of Bash commands. Our assignment involves performing various commands on a directory that has a number of folders under it as well. ...

... You cannot (and should not be able to) project onto a mapped entity. You can, however, project onto an anonymous type or onto a DTO: public class ProductDTO { public string Name { get; set; } // Other field you may need from the...