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“列表显示框”中的列表选项点不动？ - App Inventor 2 中文网 - 清泛IT社...
转会员Adonise提问：
BLE设备列表显示在“列表显示框”中，测试时列表中的选项点不动？
建议可以先用排除法：新建一个项目，列表显示框加几个测试项，看能否点的动。
新项目手机点不动的话，换模拟器试试。便于找到...
【待研究】BlueToothLE AutoReconnect 自动重连开启后，后台运行的App激活...
...tWithAddress 进行重新连接。
这个属性设置为“真”后，在ble非主动断开连接时会自动重连。那么，App后台运行并激活后，是否会自动重连呢？待测试验证一下~~
How to change XAMPP apache server port?
This is my Apache httpd.conf settings :
6 Answers
6
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Remove all special characters from a string in R?
...hich will remove accents, but will keep the letters.
astr <- "Ábcdêãçoàúü"
iconv(astr, from = 'UTF-8', to = 'ASCII//TRANSLIT')
which results in
[1] "Abcdeacoauu"
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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。
GoPrint aia源码 UI界面现代、代码不复杂，参考性强 - .aia 案例源码 - 清...
屏幕数量：6个，UI界面现代、代码不复杂，参考性强。
需要连接蓝牙硬件进行通信，具体逻辑请自行研究。