...时间和格式化，参考：https://bbs.tsingfun.com/thread-1534-1-1.htmlApp Inventor 2  发表于 2024-03-22 19:09 获取当前时间和格式化，参考：https://bbs.tsingfun.com/forum.php?mod=viewthread&tid=1534&fromguid=hot& ... 感觉还是不是很懂App Inventor 2&n...

BLE模块性价比高，无需配对就可以连接使用，从本节开始，我们着重来学习使用BLE控制和显示。 1.界面设计 2.逻辑设计 3.APP工程 4.下位机工程 {:8_381:}

...pt the arguments: , ["file:///storage/emulated/0/Android/data/edu.mit.appinventor.aicompanion3/files/Pictures/app_inventor_1727434191034.jpg"] 注意： 5秒钟后将报告另一条错误信息。 源码在这里 你好，根据报错信息，你把路径文本值设置给...

...这个新建的login是在screen1后面，如何调换它们的位置，让APP启动时，先从login启动？无法指定启动的屏幕，默认就是特定的Screen1。两种思路： 1、使用“复制屏幕”功能将Screen1复制一份为主屏幕，原来的Screen1改为登录页。 2、S...

...确显示识别的信息。显示完后一直显示报错警告框，然后app就卡住了{:8_372:}请提供一下报错相关的截图，这个报错信息更为关键！同：https://bbs.tsingfun.com/thread-2349-1-1.html

...sary. Please accept the other answer instead. – Jeff Allen Jun 21 '13 at 11:23 5 If using the new...

.... If you need strong optimization, perhaps you should use it. Here is a small example: http://home.broadpark.no/~alein/fsincos.html Here is another example (for MSVC): http://www.codeguru.com/forum/showthread.php?t=328669 Here is yet another example (with gcc): http://www.allegro.cc/forums/thread...

...its original size, I'm planning on resizing the image to something a bit smaller to save on space/performance. 18 Answers ...

I have Constants NSString, that I want to call like: 3 Answers 3 ...

I have a pkg file created by Install Maker for Mac. I want to replace one file in pkg. But I must do this under Linux system, because this is a part of download process. When user starts to download file server must replace one file in pkg. I have a solution how unpack pkg and replace a file but I d...