Popupwindow底部弹出

LinearLayout layout = (LinearLayout) LayoutInflater.from(this).inflate(R.layout.music_popwindow,                    null);            PopupWindow mPopupWindow = new PopupWindow(layout, LayoutParams.FILL_PARENT,                    LayoutParams.WRAP_CONTENT);            mPopupWindow.setAnimationStyle(R.style.AnimBottom);            mPopupWindow.showAtLocation(findViewById(R.id.main), Gravity.RIGHT | Gravity.BOTTOM, 0, 0);            // mPopupWindow.dismiss();