can somebody port assistive touch from meizu phones. really like that feature i want to use my phone in immersive mode . so as i need it.. 
for me the problem is navigating through the immersive mode.. meizu touch assistant really helps in navigating easily.. controlling it like joystick controller makes navigation super smooth...There are a ton of immersive mode apps on the Play Store. Porting apps isn't simple and is very time consuming, especially manufacturer apps.