Customizing to display multiple lines Spinner

The custom variables are as follows:

Private Context mcontext;private layoutinflater minflater;private popupwindow mpopupwindow;private ListView MListView; Private Customspinneradapter madapter;//Lahan Adapter private onspinneritemselectedlistener mlistener;//Custom Check callback interface private list<spinneritem> mspinneritems;//Custom Data sets

The next Lahan adapter is primarily used to display the drop-down text with the "check icon" after the selected text, and the custom check drop-down item callback interface is as follows:

/** * Item Check Callback interface * @author liuyinjun* @date 2015-2-8 */public interface Onspinneritemselectedlistener {public void Onitems Elected (Spinneritem item);}

To facilitate unified display, the custom data type Spinneritem:

/** * * @author liuyinjun* @date 2015-2-8 */public class Spinneritem {public int id; public String name;//display name public bool Ean ischoose;//is currently selected}

Initialize Popupwindow:

/**  *  initializing Data   */ private void initdata ()  {  //  initialization  popupwindow  mpopupwindow = new popupwindow (Mcontext);  //  The touch control disappears outside the   mpopupwindow.settouchinterceptor (New ontouchlistener ()  {   @ Override   public boolean ontouch (view v, motionevent event)  {     if  (Event.getaction ()  == motionevent.action_outside)  {      mpopupwindow.dismiss ();     return true;     }    return false;   }  });     View contentview = minflater.inflate (r.layout.spinner_shared_list, null);     mpopupwindow.setcontentview (Contentview);   mpopupwindow.setwidth (LayoutParams.FILL_ PARENT);   mpopupwindow.setheighT (layoutparams.wrap_content);   mpopupwindow.settouchable (true);   mpopupwindow.setfocusable (true);   mpopupwindow.setoutsidetouchable (true);   mpopupwindow.setbackgrounddrawable (new  bitmapdrawable ());   mpopupwindow.setanimationstyle (r.style.spinneranimation);//  set enter and exit animation   mListView =  (ListView)  contentview.findviewbyid (R.id.popwin_shared_listview);   mlistview.setonitemclicklistener (New onitemclicklistener ()  {//  drop down after clicking                   // item  Events        @Override      public void onitemclick (adapterview <?> parent, view view, int position, long id)  {       if  (mlistener != null)  {        Spinneritem item&nBsp;= mspinneritems.get (position);        setchoose (item.id);        mlistener.onitemselected (item);      }       mpopupwindow.dismiss ();      }    }) ;   madapter = new customspinneradapter (Mcontext, mspinneritems);   Mlistview.setadapter (madapter); }/**  *  Select  item and notify the adapter to change the display   *    *  @param  id  */ public void setchoose (int id)  {   LOG.I ("id=",  ""  + id);  for  (Spinneritem item : mspinneritems)  {  if  (Item.id == id)  {    item.isChoose =  true;  } else {    item.ischoose = false;  }   } madapter.noTifydatasetchanged ();  } 

The

Increases the dataset in 3 ways:

/**  *  Method 1: Add Datasets   *   *  @param based on the list collection  object  *             ,object must implement the ToString method   */  public <t> void add (List<t> object)  {  if  (object  == null)    return;  final int length = object.size ();   for  (int i = 0; i < length; i++)  {    add (I, object.get (i). toString ());  } } /**  *  Method 2: Increase data set by parameter   *   *  @param  names  */ public void add (String ...  names)  {  if  (names == null)    return;  final  int length = names.length;  for  (int i = 0; i  < length; i++)  {&Nbsp;  add (I, names[i]);  } } /**  *  Method 3: Add datasets based on resource ID    *   *  @param  id  *  @param  nameres  */ public  void add (int id, int nameres)  {  add (id, mContext.getString ( Nameres)); } /**  *  converted to a custom data type Spinneritem, adding the dataset to the  mspinneritems  *    *  @param  id  *  @param  name  */ public void  add (Int id, string name)  {  SpinnerItem item = new  Spinneritem ();  item.id = id;  item.name = name;   Mspinneritems.add (item);  }

Drop-down display:

/*** drop-down display * * @param anchor*/public void Show (View anchor) {Mpopupwindow.showasdropdown (anchor, 0, 0);}

At this point, the key code has been posted, the key is the use of Popupwindow, about how to use see Custom display multi-line Spinner

Customizing to display multiple lines Spinner