Role:
ADB is a common command-line tool provided by the SDK, all known as Android Debug Bridge, which is used to connect native and mobile devices while debugging.
With this tool, we can manage the status of the device or phone simulator.
You can also do the following:
1. Quickly update the code in the device or phone simulator, such as app or Android system upgrade;
2. Run the shell command on the device;
3, management equipment or mobile phone simulator on the predetermined port;
4. Copy or paste files on the device or phone simulator;
Detailed
Not opening an Android emulator is equivalent to opening a new standalone system that is independent of our computer's operating system. (Because the Android emulator or mobile phone runs independently on the Linux system and is not associated with our computer's operating system)
But if we want to get the data from the phone or simulator from the computer, then the simulator or cell phone must tell the Win7 system so that the Win7 system can get the data. This is the role of the Android Debug Bridge. Communication Android device and development platform (Win7) role.
The ADB command in Android development