Android Autocompletetextview automatic Prompt _android

When we use the control Autocompletetextview automatically prompts, sometimes need to set baseadapter, set Baseadapter, need to implement filterable, manual filtering.

Common Properties

The layout only sets at least one character display prompt

<autocompletetextview
    android:id= "@+id/at"
    android:completionthreshold= "1"
    android:layout_width = "Match_parent"
    android:layout_height= "Wrap_content"/>

 Private list<string> alldata = new arraylist<> ();

  @Override
  protected void onCreate (Bundle savedinstancestate) {
    super.oncreate (savedinstancestate);
    Setcontentview (r.layout.activity_main);
    Alldata.add ("AA");
    Alldata.add ("BB");
    Alldata.add ("cc");
    Alldata.add ("DD");
    Alldata.add ("abc");
    Alldata.add ("BCD");
    Autocompletetextview TextView = (autocompletetextview) Findviewbyid (r.id.at);
    Myadapter adapter = new Myadapter ();
    Textview.setadapter (adapter);
  }

Adapter Adapter Code

 Class Myadapter extends Baseadapter implements filterable {Datafilter filter;

    Arraylist<string> data;
      @Override public int GetCount () {if (data!= null && data.size () > 0) {return data.size ();
    return 0;
    @Override public Object getitem (int i) {return null;
    @Override public long Getitemid (int i) {return 0; @Override public View getview (int position, view view, ViewGroup viewgroup) {TextView TextView = new Tex
      Tview (Mainactivity.this);
      Textview.settext (Data.get (position));
    return textView;
      @Override public Filter GetFilter () {if (filter = = NULL) {filter = new datafilter ();
    } return filter; Private class Datafilter extends Filter {@Override protected filterresults performfiltering (charseque NCE prefix) {//Query results saved to Filterresults object filterresults results = new FilterresUlts ();
        list<string> querydata = new arraylist<> (); for (int i = 0; i < alldata.size (); i++) {if (Alldata.get (i). Contains (prefix.tostring ())) {Quer
          Ydata.add (Alldata.get (i));
        } results.values = Querydata;
        Results.count = Querydata.size ();
      return results; /** * Update UI * * * @Override protected void publishresults (charsequence constraint, Filterre
        Sults results) {list<string> Querydata = (list<string>) results.values;
        if (data = = NULL) {data = new arraylist<> ();
        } if (Data.size () > 0) {data.clear ();
            } if (Querydata!= null && querydata.size () > 0) for (String String:querydata) {
            Data.add (string);
          Notifydatasetchanged ();
 }
      }

    }
  }

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.