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语音识别 报错问题：No Activity found to handle intent { act=android.sp...
语音识别仿真报错，安装到手机端也报错https://www.fun123.cn/reference/info/#AppEntry
请参考一下这个教程，你上面报错的原因是手机上没有安装语音识别引擎，这里推荐“讯飞语音+”，下载地址：https://www.pgyer.com/yyyq
HAXM 安装/启动失败？ - App Inventor 2 离线版 - 清泛IT社区，为创新赋能！
...HAXM 目录（通常在 C:\Users\你的用户名\AppData\Local\Android\Sdk\extras\intel\Hardware_Accelerated_Execution_Manager\），运行 intelhaxm-android.exe 进行手动安装安装完成后，重启计算机
BIOS 未开启 VT-x（Intel 虚拟化技术）
进入 BIOS（通常是开机时按 F...
【解决】模拟器启动失败：ERROR: x86_64 emulation currently requires har...
...，路径：
....\resources\app.asar.unpacked\Emulator\from-Android-SDK\extras\intel\Hardware_Accelerated_Execution_Manager
在线版下载后的目录是：Emulator\from-Android-SDK\extras\intel\Hardware_Accelerated_Execution_Manager
安装：haxm-7.6.5-setup.exe
如果报错，请参考...
Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...
...eDirect and MakePhoneCallDirect blocks that do the old behavior that needs extra permissions. We chose to have the existing SendMessage and MakePhoneCall blocks launch the default apps via Intents , as recommended by Google policy, which should work for most people.For receiving, we made it so that ...
BLE UUID是对的但连接闪退：java.lang.IllegalArgumentException: UUID str...
...ZygoteInit.java:1013)
Caused by: java.lang.IllegalArgumentException: UUID string too large
at java.util.UUID.fromStringJava11(UUID.java:238)
at java.util.UUID.fromString(UUID.java:226)
at edu.mit.appinventor.ble.BluetoothLEGattAttributes.<clinit>(BluetoothLEGattAttributes.java:33)
......
MFC CString与std::string互转 - VC/MFC - 清泛IT论坛，有思想、有深度
CString cstr;
std::string stdstr;
非Unicode：
stdstr.assign( (LPSTR) (LPCTSTR) cstr); 或者 stdstr = std::string( (LPSTR) (LPCTSTR) cstr);
cstr = CString( stdstr.data() );
Unicode：
stdstr.assign( CT2A ( (LPCTSTR) cstr )); 或者 stdstr...
无法将类型“System.Collections.Generic.List<string>”隐式转换为...
List<string> list = new List<string>();
.........
ArrayList al = new ArrayList();
al.AddRange(list);复制代码如果单纯转换为对象数组，直接调用 list.ToArray() 方法。
std::string截取字符串，截取ip:port - c++1y / stl - 清泛IT社区，为创新赋能！
std::string ip("127.0.0.1:8888");
int index = ip.find_last_of(':');
// 获取ip
ip.substr(0, index).c_str();
// 获取port
ip.substr(index + 1).c_str();
TextEnhancer拓展 - 增强App中的文本格式 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...Parameters: radius (float), dx (float), dy (float) - shadow offset, color (String) - shadow color.
blocks (31)[size=15.008px]810×318 25.5 KB
[size=15.008px]SetTextPadding:Set the padding around the text of the specified label. Parameters: left, top, right, bottom (int) - padding values in pix...
未能从“const std::string”为“const std::_Tree<_Traits> &”...
http://blog.csdn.net/mfcing/article/details/44157227