PopWindow

View inflate1 = LayoutInflater.from(Main2Activity.this).inflate(R.layout.pop, null);
PopupWindow popupWindow=new PopupWindow(inflate1, ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT,true);
popupWindow.setTouchable(true);
popupWindow.setBackgroundDrawable(new ColorDrawable(0x000000));
popupWindow.showAtLocation(inflate1, Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL,0,0);