Flutter : Gradient AppBar

<p>color: rgba(0, 0, 0, 0.84); font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; letter-spacing: -0.084px;](In this tutorial, you will learn how to make gradient app bar in flutter ? color: rgba(0, 0, 0, 0.84); font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; letter-spacing: -0.084px;](Before start anything, In every code we need a page for contain our whole source code. So let’s start… color: rgba(0, 0, 0, 0.84); font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; letter-spacing: -0.084px;]( color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](import "package:flutter/material.dart"; box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](class AppBar extends StatefulWidget { box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( @override box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( _AppBarState createState() => _AppBarState(); box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](} box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](class _AppBarState extends State { box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( @override box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( Widget build(BuildContext context) { box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( return Scaffold( box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( appBar: AppBar( box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( title: Text("Flutter Demo Appbar"), box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( ), box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( body: Text("XXXXXXX")); box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( } box-sizing: inherit; color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](}color: rgba(0, 0, 0, 0.84); font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; letter-spacing: -0.084px;]( color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( color: rgba(0, 0, 0, 0.84); font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; letter-spacing: -0.084px;](We have used the <code>jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;](AppBar</code>color: rgba(0, 0, 0, 0.84); font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; letter-spacing: -0.084px;]( in our code above, just a simple one. It will show an app bar with a title. It is easy to use. It usually uses with the <code>jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;](appBar</code>color: rgba(0, 0, 0, 0.84); font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; letter-spacing: -0.084px;]( parameter of the <code>jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;](Scaffold.</code>color: rgba(0, 0, 0, 0.84); font-family: Menlo, Monaco, "Courier New", Courier, monospace; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( <code>jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;]( jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;](in klbox-sizing: inherit; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-weight: 700; font-size: 21px; font-style: italic; letter-spacing: -0.084px; background-color: rgb(255, 255, 255);](Now the quetion arises is it possible to convert a simple appbar in gradient appbar ?? jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;](in klbox-sizing: inherit; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-weight: 700; font-size: 21px; font-style: italic; letter-spacing: -0.084px; background-color: rgb(255, 255, 255);]( jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;](in klbox-sizing: inherit; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-weight: 700; font-size: 21px; font-style: italic; letter-spacing: -0.084px; background-color: rgb(255, 255, 255);](font-style: normal; font-weight: 400; letter-spacing: -0.084px;](Here in the appbar there is simple property which is flexibleSpace. In that flexibleSpace we can use a widget. So now we simply use a Container and gives a gradient layout using linear or any other gradient method. jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;](in klbox-sizing: inherit; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-weight: 700; font-size: 21px; font-style: italic; letter-spacing: -0.084px; background-color: rgb(255, 255, 255);](font-style: normal; font-weight: 400; letter-spacing: -0.084px;]( ``jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;](in klbox-sizing: inherit; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-weight: 700; font-size: 21px; font-style: italic; letter-spacing: -0.084px; background-color: rgb(255, 255, 255);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](appBar: AppBar( box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( centerTitle: true, box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( title: Text(widget.title), box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( flexibleSpace: Container( box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( decoration: BoxDecoration( box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( gradient: LinearGradient( box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( begin: Alignment.topLeft, box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( end: Alignment.bottomRight, box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( colors: [ box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( Colors.red, box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( Colors.blue box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( ]) box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( ), box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( ), box-sizing: inherit; font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);](font-family: Menlo, Monaco, "Courier New", Courier, monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: -0.352px; white-space: pre-wrap; background-color: rgba(0, 0, 0, 0.05);]( ),font-style: normal; font-weight: 400; letter-spacing: -0.084px;]( </code>letter-spacing: -0.004em; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; color: rgba(0, 0, 0, 0.84);]( letter-spacing: -0.004em; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; color: rgba(0, 0, 0, 0.84);](In this above code, we use gradient method for colour and that’s solve.. letter-spacing: -0.004em; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; color: rgba(0, 0, 0, 0.84);]( letter-spacing: -0.004em; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; color: rgba(0, 0, 0, 0.84);](Here is my medium link: <a href="https://medium.com/me/stories/public">https://medium.com/me/stories/publicfont-size: 1rem;</a>letter-spacing: -0.004em; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; color: rgba(0, 0, 0, 0.84);]( color: rgba(0, 0, 0, 0.84); font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; letter-spacing: -0.084px;](Here is my whole code : <a href="https://github.com/Shubham-Narkhede?tab=repositories">https://github.com/Shubham-Narkhede?tab=repositoriesfont-size: 1rem;</a>letter-spacing: -0.004em; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 21px; color: rgba(0, 0, 0, 0.84);]( <code>jo ke kf kg ka bbox-sizing: inherit; background-color: rgba(0, 0, 0, 0.05); font-family: Menlo, Monaco, "Courier New", Courier, monospace; padding: 2px 4px; font-size: 15.75px; color: rgba(0, 0, 0, 0.84); letter-spacing: -0.084px;](in klbox-sizing: inherit; font-family: medium-content-serif-font, Georgia, Cambria, "Times New Roman", Times, serif; font-weight: 700; font-size: 21px; font-style: italic; letter-spacing: -0.084px; background-color: rgb(255, 255, 255);]( </code></p>