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This package allows us to create a elastic header, to give a good effect when you scroll down the widget.

Stretchy Header #

pub package

This package allows us to create a elastic header, to give a good effect when you scroll down the widget.

Sample 1

Sample 2

Sample 3


https://media.giphy.com/media/1NUOenNf2oKU3YuWb1/giphy.gif

Getting started #

You should ensure that you add the router as a dependency in your flutter project.

dependencies:
  stretchy_header: "^1.0.6"

You should then run flutter packages upgrade or update your packages in IntelliJ.

Example Project #

There is an example project in the example folder. Check it out. Otherwise, keep reading to get up and running.

Usage #

Sample 1 #

import 'package:flutter/material.dart';
import 'package:stretchy_header/stretchy_header.dart';

class SampleListView extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: StretchyHeader.listViewBuilder(
        headerData: HeaderData(
          headerHeight: 250,
          header: Image.asset(
            "images/chichen.jpg",
            fit: BoxFit.cover,
          ),
        ),
        itemCount: 15,
        itemBuilder: (context, index) {
          return ListTile(
            title: Text("item $index"),
            onTap: () {
              final snackBar = SnackBar(
                content: Text('item $index tapped'),
              );
              Scaffold.of(context).showSnackBar(snackBar);
            },
          );
        },
      ),
    );
  }
}

Sample 2 #

import 'package:flutter/material.dart';
import 'package:stretchy_header/stretchy_header.dart';

class SampleCustomHeader extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: StretchyHeader.singleChild(
        headerData: HeaderData(
          headerHeight: 200,
          backgroundColor: Colors.black54,
          blurColor: Colors.yellow,
          header: UserAccountsDrawerHeader(
            accountName: Text("Diego"),
            accountEmail: Text("twitter @diegoveloper"),
            currentAccountPicture: CircleAvatar(
              backgroundColor: Colors.red,
              child: Text("DV"),
            ),
            margin: EdgeInsets.zero,
          ),
          overlay: Align(
            alignment: Alignment.bottomRight,
            child: Material(
              color: Colors.transparent,
              child: InkResponse(
                onTap: () {
                  Scaffold.of(context).showSnackBar(
                    SnackBar(
                      content: Text('onTap'),
                    ),
                  );
                },
                child: Padding(
                  padding: EdgeInsets.all(12),
                  child: Icon(
                    Icons.fullscreen,
                    color: Colors.white,
                  ),
                ),
              ),
            ),
          ),
        ),
        child: Padding(
          padding: const EdgeInsets.all(15),
          child: Text(
            "Hello World!",
            style: TextStyle(fontSize: 45, color: Colors.white),
          ),
        ),
      ),
    );
  }
}

Sample 3 #

class SampleBottomLabel extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: StretchyHeader.singleChild(
        headerData: HeaderData(
          headerHeight: 250,
          header: Image.asset(
            "images/machu.jpg",
            fit: BoxFit.cover,
          ),
          highlightHeaderAlignment: HighlightHeaderAlignment.bottom,
          highlightHeader: Container(
            width: MediaQuery.of(context).size.width,
            decoration: BoxDecoration(
                gradient: LinearGradient(
                  colors: [
                    Colors.black54,
                    Colors.black54,
                    Colors.black26,
                    Colors.black12,
                    Colors.black12,
                  ],
                  begin: Alignment.bottomCenter,
                  end: Alignment.topCenter,
                )),
            child: Padding(
              padding: const EdgeInsets.all(15),
              child: Text(
                "Machu Picchu",
                style: TextStyle(color: Colors.white, fontSize: 22),
              ),
            ),
          ),
        ),
        child: Padding(
          padding: const EdgeInsets.all(15),
          child: Text(LONG_DESCRIPTION),
        ),
      ),
    );
  }
}

Sample 4 #

class SampleCenterWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: StretchyHeader.singleChild(
        headerData: HeaderData(
          headerHeight: 250,
          header: Image.asset(
            "images/machu.jpg",
            fit: BoxFit.cover,
          ),
          highlightHeaderAlignment: HighlightHeaderAlignment.center,
          highlightHeader: SizedBox(
            width: MediaQuery.of(context).size.width,
            child: GestureDetector(
              onTap: () {
                print("tap highlightHeader");
              },
              child: CircleAvatar(
                backgroundColor: Colors.red,
                child: Text("M"),
              ),
            ),
          ),
        ),
        child: Padding(
          padding: const EdgeInsets.all(15),
          child: Text(LONG_DESCRIPTION),
        ),
      ),
    );
  }
}

You can follow me on twitter @diegoveloper

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Publisher

verified publisherdiegoveloper.com

This package allows us to create a elastic header, to give a good effect when you scroll down the widget.

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Dependencies

flutter

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