Remove status bar from app

I’ve styled my app to where their is no top and bottom bars using “f11” on my browser. So when I open the apk on my android device, the status bar makes my styling look different and disorganized. Is it possible to remove the status bar and just keep my app full screen? I’ve tried editing the “android manifest” code but it says I dont have permission. I am using Ionic creator to build my app.