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BLE UUID是对的但连接闪退：java.lang.IllegalArgumentException: UUID str...
...attAttributes.java:33)
... 10 more
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经过调查，问题出在如下报错中的“uuid string too large”上，java内置的UUID中的函数。
通过调查发现是由于ble拓展编译平台（java8），和目前appinventor with sdk34 平台（java11） 对这个函数...
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。
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...
File Upload without Form
..., can I just send a file/files from <input type="file"> to 'upload.php' using POST method using jQuery. The input tag is not inside any form tag. It stands individually. So I don't want to use jQuery plugins like 'ajaxForm' or 'ajaxSubmit'.
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Want to exclude file from “git diff”
I am trying to exclude a file ( db/irrelevant.php ) from a Git diff. I have tried putting a file in the db subdirectory called .gitattributes with the line irrelevant.php -diff
and I have also tried creating a file called .git/info/attributes containing db/irrelevant.php .
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PHP shell_exec() vs exec()
...ide all output as an array specifed as the second parameter.
See
http://php.net/manual/en/function.shell-exec.php
http://php.net/manual/en/function.exec.php
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Error in exception handler. - Laravel
...nd this helpful. But, it later creates problems when you're trying to run 'php artisan migrate ...' - as the '/app/storage/' folder gives you 'Permission Denied' error - and you go along fixing all the permissions to owner 'www-data', until you get to '/bootstrap/compiled.php' permissions error. Is ...
CodeIgniter: Create new helper?
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A CodeIgniter helper is a PHP file with multiple functions. It is not a class
Create a file and put the following code into it.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
if ( ! function_exists('test_method'))
{
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Best way to parse RSS/Atom feeds with PHP [closed]
...ll formed. Are there any other options for parsing RSS and Atom feeds with PHP?
10 Answers
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Running a Python script from PHP
I'm trying to run a Python script from PHP using the following command:
9 Answers
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