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Service and Characteristic are not published by the connected device -...
Service and Characteristic are not published by the connected device，报错如下：
问题原因：硬件/蓝牙芯片问题导致的，比如A硬件测试好的，换了B硬件没有修改uuid，就出现这个报错。
由于B硬件没有发布这些特征，就会报这个错误。
【免费开放】App Inventor 2 LLMAI2Ext 自研拓展：接入DeepSeek、Kimi、通...
...议不兼容。
猜测：大概率，你搭建平台的机器openssl版本问题或者java版本问题。好的，我试试app安装到手机试试！感谢，回答。在手机上是可以正常运行的。应该是服务器没设好。感谢分享，马上导入试试如何把图片发给大模...
“AppInventor学院”App国内各大市场上架之旅 - App应用开发 - 清泛IT社区...
...失。请排查应用内所有的权限申请行为，确保不存在类似问题。
上述的步骤我们写了专门的拓展解决：https://www.fun123.cn/reference/ ... cyPolicyAI2Ext.html
不断完善，更新中。。。。
小米继续驳回，仍然是隐私政策问题：
具...
Appinventor 音效调用播放后没有声音？ - App应用开发 - 清泛IT社区，为创新赋能！
...发现调用播放后，又调用了停止方法，导致的声音不播放问题，去掉即可。
当然如果因为音频文件损坏等原因，也可能无法正常播放，这时可以先去资源区，点击隐私文件，菜单中选择预览，可以预览播放，事先检查好确保...
App Inventor 2 模拟器不能正常朗读文本的解决方法 · App Inventor 2 中文网
...e TTS 引擎）。如果需要朗读文本，可以按照以下步骤解决问题：
1. 安装语音引擎
Google TTS 引擎：
在模拟器内打开应用商店（如 Google Play Store 或其他 APK 下载平台）。
搜索并安装 Google Text-to-...
Remove non-numeric characters (except periods and commas) from a string
...
You could use preg_replace to swap out all non-numeric characters and the comma and period/full stop as follows:
$testString = '12.322,11T';
echo preg_replace('/[^0-9,.]+/', '', $testString);
The pattern can also be expressed as /[^\d,.]+/
...
Create JSON-object the correct way
I am trying to create an JSON object out of a PHP array. The array looks like this:
5 Answers
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How to get file_get_contents() to work with HTTPS?
...following code worked fine when I was using the test server (which wasn't calling an SSL URL), but now when I am testing it on the working server with HTTPS, it's failing with the error message "failed to open stream".
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PHP expresses two different strings to be the same [duplicate]
...and 272E-3063 will both be float(0) because they are too small.
For == in php,
If you compare a number with a string or the comparison involves
numerical strings, then each string is converted to a number and the
comparison performed numerically.
http://php.net/manual/en/language.operato...
Chrome says “Resource interpreted as script but transferred with MIME type text/plain.”, what gives?
In FF and all, my javascript works fine. But in Chrome it gives this message:
20 Answers
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