Flutter Food Delivery App

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Flutter Food Delivery App:Uber Eats, DoorDash, Delivery Hero or Lunching.pl – these food delivery apps are changing the way we order our takeaway food. Inspired by them, we decided to build a cross-platform app based on the Flutter framework (as our internal project).

Food ordering and delivery apps are perfect for Flutter because of the low level of complexity. Yet they need to have a beautiful design to present tasty food photos as well as a quick and user-friendly ordering flow (who wants to wait for food, right?).

What is SliverAppBar?

In Flutter, SliverAppBar is a successor to the AppBar widget, which allows you to create the floating app bar effect. The SliverAppBar expands the AppBar when the screen is scrolled up and collapse on scroll down.

You can also completely remove or hide the AppBar when the user is scrolling down a long list. SliverAppBar has got a lot of customization options so you can tailor it to your needs.

TabBar

To implement TabBar in your Flutter app, complete the following steps:

  1. Wrap the Scaffold widget inside the DefaultTabController. Use for most simple use cases. If you want to control the tabs programmatically, you should use TabController and avoid this step
  2. Place the TabBar widget as the bottom property of AppBar
  3. Provide TabBarView in the body of the AppBarTabBarView is like PageView, which is use mostly with TabBar because it shows the widget based on the currently selected tab
GridView

A grid view is a graphical control element used to show items in the tabular form. In this section, we are going to learn how to render items in a grid view in the Flutter application.

GridView is a widget in Flutter that displays the items in a 2-D array (two-dimensional rows and columns). As the name suggests, it will be use when we want to show items in a Grid. We can select the desired item from the grid list by tapping on them. This widget can contain text, images, icons, etc. to display in a grid layout depending on the user requirement. It is also refer to as a scrollable 2-D array of widgets. Since it is scrollable, we can specify the direction only in which it scrolls.

The grid view can be implements in various ways, which are gives below:

  1. count()
  2. builder()
  3. custom()
  4. extent()
GridView.builder()

This property is use when we want to display data dynamically or on-demand. In other words, if the user wants to create a grid with a large (infinite) number of children, then they can use the GridView.builder() constructor with either a SliverGridDelegateWithFixedCrossAxisCount or a SliverGridDelegateWithMaxCrossAxisExtent.

The common attributes of this widget are:

itemCount: It is used to define the amount of data to be display.

gridDelegate: It determines the grid or its divider. Its argument should not be null.

itemBuilder: It is used to create items that will be display on the grid view. It will be call only when the indices >= zero && indices < itemCount.

Full Code:Flutter Food Delivery App

Flutter Food Delivery App

For More: To know about Social Media Screen in Flutter

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