how to create toolbar searchview in flutter

Question

i need to implement searchview in toolbar my app to achieve list view list filter. like below image, i searched lot still not get proper answer. Any help will be appreciated

Answer 1

You just need to alternate between the state whenever the user taps on the icon. Beside a little bit of refactoring an code cleaning on your side, this simple example should get you going.

class SearchAppBar extends StatefulWidget {
  @override
  _SearchAppBarState createState() => new _SearchAppBarState();
}

class _SearchAppBarState extends State {
  Widget appBarTitle = new Text("AppBar Title");
  Icon actionIcon = new Icon(Icons.search);
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      appBar: new AppBar(
        centerTitle: true,
        title:appBarTitle,
        actions: [
          new IconButton(icon: actionIcon,onPressed:(){
          setState(() {
                     if ( this.actionIcon.icon == Icons.search){
                      this.actionIcon = new Icon(Icons.close);
                      this.appBarTitle = new TextField(
                        style: new TextStyle(
                          color: Colors.white,

                        ),
                        decoration: new InputDecoration(
                          prefixIcon: new Icon(Icons.search,color: Colors.white),
                          hintText: "Search...",
                          hintStyle: new TextStyle(color: Colors.white)
                        ),
                      );}
                      else {
                        this.actionIcon = new Icon(Icons.search);
                        this.appBarTitle = new Text("AppBar Title");
                      }


                    });
        } ,),]
      ),
    );
  }
}