How to Create Popup Menu in Flutter?

Introduction

A flexible and user-friendly feature of Flutter is the popup menu flutter, which offers a practical way to display a list of choices or actions in a transient overlay. Users can open the popup menu that appears near the triggering element with only a single tap on an icon or widget. When you want to provide context-specific options or actions without clogging the main screen or taking up valuable real estate, this UI element is especially helpful. Developers can adapt the popup menu's appearance and behavior to fit the overall design and functionality of their application thanks to the Flutter framework's numerous customization capabilities. Whether it's displaying a set of actions, sorting options, or custom choices, the popup menu in Flutter is a valuable tool for enhancing user interaction and providing a seamless and intuitive experience.

Creating the Popup Menu Button Widget

To create a PopupMenuButton widget in Flutter, you can follow these steps:

1. Define a list of PopupMenuItems:
   To begin with the popup menu flutter, create a list of PopupMenuItems to represent the choices or actions you wish to see in the popup menu. Every PopupMenuItem ought to have a child widget that depicts the menu item's content.

2. Implement the PopupMenuButton widget:
   Create the button that causes the popup menu to appear by using the PopupMenuButton widget. Give the itemBuilder property access to the menuItems list that was previously established.

3. Handling menu item selection:
   To manage the selection of a menu item, use the onSelected callback function. You can do customized actions based on the selected choice by passing the callback function to the selected value of the relevant PopupMenuItem.
4. Incorporating the PopupMenuButton:
   Place the PopupMenuButton widget within your Flutter UI, such as within an AppBar or any other widget that suits your design and functionality requirements.

Defining the Popup Menu Items

Create a list that contains the PopupMenuItems you want to see on the menu as a starting point. Every PopupMenuItem ought to have a child widget that depicts the menu item's content. To specify the menu item content, you can use a variety of widgets, including Text, Icon, ListTile, and custom widgets in the popup menu flutter.

By defining the popup menu, you explicitly specify the available options and actions for the user. This clarity helps users understand the functionality and purpose of the menu, making it easier for them to navigate and interact with your app.

A well-defined popup menu can guide users by presenting relevant options based on the current context or screen. It can provide users with intuitive choices that align with their expectations, reducing confusion and improving the overall user experience. The popup menu flutter serves as a convenient way to expose additional features or actions that may not be immediately visible on the screen. By defining and organizing the menu items effectively, you increase the discoverability of these hidden functionalities, enabling users to explore and utilize more of your app's capabilities.

Handling Popup Menu Selections

• Give the itemBuilder callback The collection of PopupMenuItem widgets that represent each menu choice is specified in the itemBuilder callback.
• A value widget and a child widget are necessary for each PopupMenuItem.
• To manage the selection Choose the callback that will be invoked when an option is selected (onSelected).
• To handle various parameters according to their value in the callback, you can use a switch statement or conditional statements.
• The PopupMenuButton widget in Flutter can be used to manage popup menu options by triggering the display of a popup menu. You specify the list of PopupMenuItem widgets that represent each menu choice in the itemBuilder callback.
• Each item should be given a distinct value, and the onSelected callback should reply to the picked option based on that value. Depending on the user's choice, you may utilize this to carry out various actions or alter the user interface.
• This method enables you to effectively generate interactive popup menus in Flutter and react to user selections.
• The popup menu flutter allows users to access additional options and functionalities within your app.
• By handling the popup menu, you enable users to make selections and perform specific actions based on their choices. This enhances user interactivity and empowers them to control and customize their app experience.
• The popup menu flutter often contains context-specific actions related to the current screen or content.
• By handling the popup menu selections, you can execute the appropriate actions based on the user's chosen option. This ensures that the actions performed are relevant and meaningful within the current context, providing a more intuitive and efficient user interface.

Styling the Popup Menu

The PopupMenuItem widgets and the PopupMenuButton itself can both be changed to decorate the popup menu in Flutter. Here are some examples of popup menu stylings:

1. Customizing PopupMenuItem:
   • You can customize the text style, color, and other properties of the Text widget used as a child of PopupMenuItem.
   • Wrap the Text widget with another widget, such as Container, to apply additional stylings, such as padding or decoration.
2. Customizing PopupMenuButton:
   • Use the PopupMenuButton's settings, such as its icon, color, elevation, and shape to change how it looks.
   • A custom icon widget, such as Icon or IconButton, can be used to set the icon property.
   • Modify the color property to alter the button's background color.
   • To modify the shadow effect, adjust the elevation property.
   • Define a unique shape for the button using the shape parameter, such as a circle or a rounded rectangle.
3. Theming the PopupMenuButton:
   
   • Wrap the popup menu flutter with a Theme widget, then edit the desired settings to apply a general theme.
   • To alter the background colour, text theme, or icon theme, for instance, you can modify the backgroundColor, text theme, or icon theme attributes.

By using these methods, you may create different styles for your popup menu in Flutter, ensuring that it adheres to the design standards of your app and offers a visually pleasing user experience. By styling the popup menu to align with the overall theme and design of your app, you maintain visual consistency throughout the user interface. When the popup menu seamlessly integrates with the rest of the app's elements, it creates a cohesive and polished user experience. Styling the popup menu allows you to incorporate your app's branding elements, such as color schemes, typography, and icons. This helps reinforce your app's visual identity and brand recognition, making it more memorable and distinct for users.

Adding Icons to the Popup Menu Items

Use the PopupMenuItem widget along with the Icon widget in Flutter to add icons to the popup menu items. You can add a Row widget as a child when defining each PopupMenuItem, which enables you to display an icon and text next to each other. You can insert the Text widget first in the Row, then the Icon widget. Use a SizedBox widget or another spacing widget to modify the distance between the icon and text as necessary. You can add icons in addition to the matching text for each menu item by customizing the child property of each PopupMenuItem.

Example App

Here is an example application with a popup menu:

The output looks something like this: