Having issue with Popup window

I am trying to set Popup window similar to the old Facebook comment section.

Rounded corner dialog box but I am facing a problem with size of dialog box and showatlocation of the Dialog box.

When I try this code on different mobile:

        val display = windowManager.defaultDisplay
        val size = Point()
        display.getSize(size)
        val popupWindow = PopupWindow(customView, size.x-30, size.y-300, true)
        popupWindow.showAtLocation(linearLayout1, Gravity.CENTER, -3, 100)
        popupWindow.setAnimationStyle(R.style.PopupAnimation)

//Animation from Source

Output On Oneplus 6T:

In one plus my animation also disable when I change .showAtLocation to other numbers

Output on Lenovo K8 Note:

In K8 note Location of Popup change if I change to another value.

Thank you in Advance.

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