Android 2.0 Emulator Exclusive -

For QEMU, use -net user,hostfwd=tcp::5555-:5555 to enable ADB over localhost.

: Released originally around Android Studio 2.0, this marked the major overhaul where the stock emulator finally became faster than physical devices via hardware acceleration. android 2.0 emulator

: This version was optimized to be significantly faster than its predecessors, allowing for quicker app installation and execution than some physical hardware of that era. use -net user