MiBar application is util app for XiaoMi SoundBar, a optional accessories of XiaoMi TV, which can work independent. Via the app, end user can change Bar's configuration, such as Volume, EQ style and princial settings, as well as do firmware upgrading.
The easiest way is through the IDEA. www.jetbrains.com/idea/ Also, you still can import the project by Android Studio.
There is a MiBar core jar lib provided by XiaoMi TV team, including core protocol not open yet. But you still can access the functionality by the opened java interface com.xiaomi.mitv.soundbar.DefaultMisoundDevice. You may need to read it before you enhancement.
Please search XiaoMi App Store by name "小米音响"