Android Imitation News reader Menu Pop-up effect example (source demo download) _android

After encountering problems in development, I think that maybe some developers use or want to be independent of a small function demo, so the release to such a demo.

Originally felt is the final completion of the site after the client, but this does not reflect a function of a function of the analysis to achieve results, and a long cycle time, so on the completion of a part, send a part, please understand.

The following menu pop-up effects are available on many news readers, such as today's headline, 360 News, and so on.

In fact, this realization is very simple, see the effect, is actually a popupwindow, then set the corresponding Postion button click Properties, and then get the button position, to set it animation display disappeared can appear.

Here's a look at the code's thinking:

Because the whole is a ListView, I write the clicked event to the corresponding adapter adapter.

public class Myadapter extends Baseadapter {layoutinflater inflater = null; 
  activity of activity; 
  Arraylist<news> newslist; 
 
  Private Popupwindow Popupwindow; 
    Public Myadapter (activity activity, arraylist<news> newslist) {this.activity = activity; 
    This.newslist = newslist; 
    Inflater = (layoutinflater) activity.getsystemservice (Context.layout_inflater_service); 
  Initpopwindow (); 
  @Override public int GetCount () {return newslist!= null? Newslist.size (): 0; 
      @Override public News getitem (int position) {if (newslist!= null && newslist.size ()!= 0) { 
    return Newslist.get (position); 
  return null; 
  @Override public long getitemid (int position) {return position; @Override Public View getview (final int position, View Convertview, ViewGroup parent) {View VI = CONVERTVI 
    ew 
    Final Viewholder Holder; if (vi = = NULL) {VI = Inflater.inflatE (R.layout.listview_item, NULL); 
      Holder = new Viewholder (); 
      Holder.item_title = (TextView) Vi.findviewbyid (r.id.item_title); 
      Holder.item_content = (TextView) Vi.findviewbyid (r.id.item_content); 
      Holder.button_showpop = (ImageView) Vi.findviewbyid (R.id.button_showpop); 
    Vi.settag (holder); 
    else {holder = (Viewholder) vi.gettag (); 
    News news = GetItem (position); 
    Holder.item_title.setText (News.gettitle ()); 
    Holder.item_content.setText (News.getcontent ()); 
    Holder.button_showpop. Setonclicklistener (new popaction (position)); 
  return VI; 
    public class Viewholder {TextView item_title; 
    TextView item_content; 
  ImageView Button_showpop; /** * Initialize Popwindow */private void Initpopwindow () {View Popview = inflater.inflate (r.layout.l 
    Istview_pop, NULL); 
    Popupwindow = new Popupwindow (Popview, layoutparams.wrap_content, layoutparams.wrap_content); Popupwindow.setbacKgrounddrawable (new colordrawable (0)); 
    Set Popwindow to appear and disappear animation Popupwindow.setanimationstyle (r.style.popmenuanimation); 
  Btn_pop_close = (ImageView) Popview.findviewbyid (r.id.btn_pop_close); 
   
  /** Popwindow Close button * * Private ImageView btn_pop_close; 
    /** * Show Popwindow */public void Showpop (View parent, int x, int y,int postion) {//Set Popwindow display location 
    Popupwindow.showatlocation (parent, 0, X, y); 
    Gets Popwindow Focus popupwindow.setfocusable (TRUE); 
    Set Popwindow If you click on the outside area, then close. 
    Popupwindow.setoutsidetouchable (TRUE); 
    Popupwindow.update (); if (popupwindow.isshowing ()) {} btn_pop_close.setonclicklistener (new Onclicklistener () {public 
      void OnClick (View paramview) {Popupwindow.dismiss (); 
  } 
    }); 
    /** * per item more button corresponding Click action * */public class Popaction implements onclicklistener{int position; public popaction (int position) {this.position = Position 
      @Override public void OnClick (View v) {int[] Arrayofint = new int[2]; 
      Get the coordinates of the click button V.getlocationonscreen (arrayofint); 
      int x = arrayofint[0]; 
      int y = arrayofint[1]; 
    Showpop (v, x, y, position); 
 } 
  } 
}

So much content, very simple, in the future encounter this kind of related effect, also don't be afraid.

Here's what I've accomplished with the above code:

Below put on the effect source demo download Address: Download the address

The above is the entire content of this article, I hope to help you learn, but also hope that we support the cloud habitat community.