How does e4a connect the mobile phone for debugging?

Install an Android emulator, then import the installation package and debug it.

Using E4A Chinese Android programming (including source code), the generated App can be directly installed on the mobile phone, which involves network programming and can be used as a server or client to send and receive data in LAN debugging.

USB debugging mode is actually a function provided by Android for development. Users can copy data between computers and Android devices, install applications on mobile devices, and read log data. If some programs want to take over or participate in system control, they must turn on USB debugging mode, otherwise external programs cannot realize their functions.