Android中限制Spinner下拉視圖高度

 mSp_UserFloor = (Spinner) findViewById(R.id.sp_userFloor);
 mSp_UserFloor.setOnItemSelectedListener(listenerFloor);


 try {
     Field popup = Spinner.class.getDeclaredField("mPopup");
     popup.setAccessible(true);

     android.widget.ListPopupWindow popupWindow = (android.widget.ListPopupWindow) popup.get(mSp_UserFloor);

     // 設置下視視圖的高度
     popupWindow.setHeight(200);
 }
 catch (Exception e) {
   
 }