How to Create search button in android -

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i newbie in android developement. want create search function in comic this:

enter image description here

how can those:

  • when click search button, displays input text box.
  • when input, displays list of matched items.

you need activity marked searchable. first add meta , intent filter manifest on activity marked single-top.

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="..."> <application android:name="..." android:icon="@drawable/logo" android:label="@string/app_name" android:theme="@style/...">     <activity android:name=".mainactivity" android:label="@string/app_name"         android:launchmode="singletop" android:theme="@style/apptheme">         <meta-data android:name="android.app.searchable" android:resource="@xml/searchable" />         <intent-filter>             <action android:name="android.intent.action.search" />         </intent-filter>         ...     </activity>     ... </application>

then add search view menu xml

<menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto">     <item android:id="@+id/search" android:title="@string/hint_search"          android:orderincategory="500" android:icon="@android:drawable/ic_menu_search"          app:showasaction="collapseactionview|ifroom"          app:actionviewclass="android.support.v7.widget.searchview" />     ... </menu>

then make activity set search view

@override public boolean oncreateoptionsmenu(menu menu) {     getmenuinflater().inflate(r.menu.menu_main, menu);     searchmanager searchmanager = (searchmanager) getsystemservice(context.search_service);     searchview searchview = (searchview) menu.finditem(r.id.search).getactionview();     if (searchview != null) {         searchview.setsearchableinfo(searchmanager.getsearchableinfo(getcomponentname()));         searchview.setoncloselistener(new searchview.oncloselistener() {             @override             public boolean onclose() {                 //todo: reset views                 return false;             }         });         searchview.setonquerytextlistener(new searchview.onquerytextlistener() {                 @override                 public boolean onquerytextsubmit(string s) {                     return false; //do default                 }                  @override                 public boolean onquerytextchange(string s) {                     //note: doing here optional, onnewintent important bit                     if (s.length() > 1) { //2 chars or more                         //todo: filter/return results                     } else if (s.length() == 0) {                         //todo: reset displayed data                     }                     return false;                 }              });         }     }     return true; }

then make sure activity responds search intent

@override protected void onnewintent(intent intent) {     super.onnewintent(intent);     if (intent.action_search.equals(intent.getaction())) {         final string query = intent.getstringextra(searchmanager.query);         //todo: filtering / set results     } }

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