Android edittext Input Box Search implementation

Recently in a small project to use the search function, so on the Internet to find information, now recorded, so as not to forget later. A small example written when learning Android is written on the basis of

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A ListView and Adapter fill data to dynamically change the display of the ListView based on what is entered

Mainactivity:

Private ListView LV; Private list<goods> lists=New arraylist<goods>(); Private EditText Et_search; Private Goodsadapter Adapter; Private Drawable Imgclear;

lv=(ListView) Findviewbyid (r.id.lv_goods); Et_search=(EditText) Findviewbyid (r.id.et_search); et_ Search.addtextchangedlistener (this); // Filter the Search Et_search.setontouchlistener (this) based on the change in input value of the entry box ; imgclear=new Goodsadapter (mainactivity.  this, r.layout.goods_item,lists); Lv.setadapter (adapter);

 Public voidFilterdata (String strdata) {List<Goods> filterlists=NewArraylist<goods>(); //If the input box is empty, all data is displayed        if(Textutils.isempty (strdata)) {filterlists=lists; }Else{//Otherwise, the search results are displayedfilterlists.clear ();  for(Goods list:lists) {String name=List.getname ();            Filterlists.add (list); }} adapter.updateview ( This, filterlists); }    //Filter search based on changes in input values@Override Public voidBeforetextchanged (Charsequence S,intStartintCount,intAfter ) {        //when the value inside the input box is empty, update to the original list, otherwise filter the data listFilterdata (s.tostring ()); } @Override Public voidOnTextChanged (Charsequence S,intStartintBefore,intcount) {} @Override Public voidaftertextchanged (Editable s) {//The delete icon appears when the input box is not empty, and disappears when it is empty        if(Textutils.isempty (s)) {et_search.setcompounddrawableswithintrinsicbounds (NULL,                    NULL, Imgclear,NULL); }    }    //Empty the input box@Override PublicBoolean OnTouch (View V, motioneventEvent) {        Switch(Event. Getaction ()) {         Casemotionevent.action_up:intCurX = (int)Event. GetX (); if(CurX > V.getwidth ()- -&&!Textutils.isempty (Et_search.gettext ())) {Et_search.settext (""); intCacheinputtype = Et_search.getinputtype ();//backup the input typeEt_search.setinputtype (Inputtype.type_null);//Disable Soft inputEt_search.ontouchevent (Event);//Call Native HandlerEt_search.setinputtype (Cacheinputtype);//Restore input type                return true;//consume touch even            }             Break; }        return false; }

Android edittext Input Box Search implementation