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Need android.permission.BLUETOOTH_SCAN permission for android.content....
...问题，临时解决是弄一个“蓝牙客户端”组件，请求蓝牙扫描权限就能临时绕过。
当然，使用最新版本的拓展，应该就没有问题了。最新的拓展已经支持安卓14：https://www.fun123.cn/reference/iot/bluetoothle.html
参考：https://com...
APP被手机识别为疑似病毒 - App应用开发 - 清泛IT社区，为创新赋能！
...件直接添加到附件，然后将邮件发送给自己。过一会再去扫描，就会在这个APK“发现病毒代码”。如果显示为“安全”，就重复检测多几次。
终于误报“发现病毒代码”了？截图误报信息，到这里申诉：https://m.qq.com/complaint...
安全工具将程序标记为病毒 - App应用开发 - 清泛IT社区，为创新赋能！
...计算程序，但安装时候，提示没有备案或国外软件，安全扫描标记为病毒，是因为没有备案码？问deepseek，说不应该是备案，程序采用注册机制，用数据库验证注册名和注册码，别的都是纯粹计算。详见这个帖子：https://bbs.tsingfu...
- App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...为蓝牙智能或蓝牙 Light）的设备。使用 LightBlue®，您可以扫描、连接和浏览附近的任何 BLE 设备。它全面支持读取、写入和通知功能，以简化 BLE 固件开发工作。您还可以实时查看信号强度 (RSSI)，了解您与 BLE 设备的距离，方便...
AppInventor如何实现通过扫二维码导入表格数据 - App Inventor 2 拓展 - 清...
1、扫二维码：
使用原生的“条码扫描器”组件：
2、读取二维码中的url信息：
从上面条码组件的事件中获取。
3、访问远程url获取表格csv数据：
使用Web客户端组件访问url获取数据。数据格式建议采用csv（逗号分隔）格...
Recommended way to get hostname in Java
... is the name of your computer. Any attempt to determine the hostname by an IP address like this
InetAddress.getLocalHost().getHostName()
is bound to fail in some circumstances:
The IP address might not resolve into any name. Bad DNS setup, bad system setup or bad provider setup may be the reason f...
mongo - couldn't connect to server 127.0.0.1:27017
...o the mongod server.
This could be because the address was wrong (host or IP) or that it was not running. One thing to note is the log trace provided does not cover the "Fri Nov 9 16:44:06" of your mongo timestamp.
Can you:
Provide the command line arguments (if any) used to start your
mongod p...
Maximum packet size for a TCP connection
...
Your 1480'ish should be 1460. The IP header and the TCP header take up 20 bytes each at least (unless optional header fields are used) and thus the max for (non-Jumbo frame) Ethernet is 1500 - 20 -20 = 1460.
– Evgeniy Berezovsky
...
SQLite INSERT - ON DUPLICATE KEY UPDATE (UPSERT)
...rts upsert, so now you can simply write the following
INSERT INTO visits (ip, hits)
VALUES ('127.0.0.1', 1)
ON CONFLICT(ip) DO UPDATE SET hits = hits + 1;
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How to grant remote access to MySQL for a whole subnet?
I can easily grant access to one IP using this code:
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