Flutter has become one of the most popular mobile app development frameworks globally, with a vast community that continuously contributes to the platform. Flutter offers developers a range of widgets and tools that make it easy to create high-quality, interactive, and modern-looking apps with ease. One popular example of these tools is the Flutter button style.
Buttons are a crucial component of almost every mobile app and play a vital role in directing user actions. Aside from their functionality, buttons can also significantly impact the overall user interface of a mobile app. Flutter button style offers a variety of customizations that can enhance the look and feel of your app while maintaining its functionality.
In this article, we will explore Flutter button styles and offer code examples for creating beautiful, modern, and interactive buttons for your mobile app.
Getting started with Flutter buttons:
Flutter offers a range of buttons that can be used for various purposes based on the functionality we require. Some of the in-built buttons include Raised Button, Flat Button, Outline Button, and Dropdown Button. The Raised Button widget is the most commonly used button style in Flutter apps.
The Raised Button widget:
The Raised Button widget sets a raised button style with shadows and a background color that pops out. By default, the Raised Button widget is set to use the accent color, but it can be customized to fit our specific requirements.
Here’s an example of how to implement the Raised Button widget in your Flutter app:
RaisedButton(
child: Text('Click me'),
onPressed:(){
// onchange function here
},
textColor: Colors.white,
color: Colors.blue,
elevation: 10,
),
This code will create a raised button, labeled “Click me” with a blue background and white text color.
We can customize the button with features such as border radius, shape, disabled button states, and more.
Here’s an example to demonstrate how this works:
RaisedButton(
child: Text('Click me'),
onPressed:(){
// onchange function here
},
textColor: Colors.white,
color: Colors.blue,
elevation: 10,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(20),
side: BorderSide(color: Colors.blue, width: 2),
),
disabledColor: Colors.grey,
disabledTextColor: Colors.white,
),
In this code, the button has been customized with a border radius of 20, a blue border of 2 pixels in width, and a grey background color with white text when disabled.
Flat Button:
Flat buttons are a popular choice when we want to create a more minimalist appearance. Flat buttons are typically used as secondary action buttons or for less important actions. By default, Flat buttons do not have a background color or elevation.
Here is an example of implementing the Flat Button widget:
FlatButton(
onPressed:() {
// onchange function here
},
child: Text('Click Me'),
textColor: Colors.blue,
),
We can customize Flat buttons using the same properties as Raised Buttons, such as text color, border radius, and shape. The customization process for Flat Buttons is similar to that of Raised Button Widgets.
Outline Button:
Outline buttons are another option provided by Flutter to customize buttons appearance. Outline buttons are usually used to create borders around the button and filled text in a specific color.
Here is an example of implementing the Outline Button widget, including button customized text color, border color, and border thickness.
OutlineButton(
onPressed:(){
// onchange function here
},
child: Text('Click Me'),
textColor: Colors.blue,
borderSide: BorderSide(color: Colors.blue, width: 2),
),
We used the borderSide property to set the button border color, and the width is set to 2 pixels.
Dropdown Button:
Dropdown buttons can be used when we need an option to let users choose one item from a list of items. Dropdown buttons give the user a convenient way to choose between several options in one place.
Here’s an implementation of the Dropdown Button widget:
DropdownButton(
// filling the options in dropdown menu
items: [
DropdownMenuItem(child: Text('Option 1'), value: 1,),
DropdownMenuItem(child: Text('Option 2'), value: 2,),
DropdownMenuItem(child: Text('Option 3'), value: 3,),
],
// setting the default selected value
value: 1,
// onchange
onChanged: (value){
},
),
We can customize Dropdown buttons by providing options and implementing the onChanged function. The onChanged function can be used to perform actions, for instance, when the user selects a specific option.
Conclusion:
Customizing buttons can greatly enhance the look and functionality of your mobile app. By using Flutter button styles, including Raised Buttons, Flat Buttons, Outline Buttons, and Dropdown Buttons, we can create high-quality, modern, and interactive buttons with ease. We hope this article helped give you an overview of Flutter button styles along with code examples to build upon when developing your own buttons. Happy coding!
Alright, I'll expand on some of the topics mentioned in the previous article.
Raised Button Widget:
The Raised Button widget is a commonly used button style in Flutter and is perfect for primary actions in your app. Raised Buttons have a background color and shadow that gives them a 3D effect, making them appear more prominent than other elements on a screen. They also have a default rounded shape but can be customized based on the requirements of the app.
To customize Raised Buttons, we can use the properties like "textColor", "color", "disabledColor", "disabledTextColor", "elevation", and "shape". For example,
RaisedButton(
child: Text('Submit'),
onPressed: () {},
textColor: Colors.white,
color: Colors.red,
disabledColor: Colors.grey,
disabledTextColor: Colors.black,
elevation: 5,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8),
),
),
In the code above, we set "textColor" to white, "color" to red, "disabledColor" to grey, and "disabledTextColor" to black. The "elevation" property sets the shadow effect while the "shape" property sets a border radius of 8 pixels.
FlatButton Widget:
FlatButton is also a popular button type in Flutter that is mostly used for less important actions. Flat buttons do not have a background color but their shape, text color, and border properties can be customized. We can use the "textColor", "onPressed", "child", and "shape" properties to customize a FlatButton.
Here's an example:
FlatButton(
onPressed: () {},
child: Text('Cancel'),
textColor: Colors.red,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8),
side: BorderSide(color: Colors.red),
),
),
In the code snippet above, "textColor" is set to red, and the "shape" property sets a radius of 8 pixels and adds a red border.
OutlineButton Widget:
Outline buttons are another popular button type in Flutter that is commonly used as a secondary action button. They have a transparent background with an outline stroke of the specified color and border width. The "borderSide" property can be used to set the outline color and border width, while the "textColor", "onPressed", "child", and "shape" properties can also be used to customize the outline button.
Here's an example of a simple OutlineButton:
OutlineButton(
onPressed: () {},
child: Text('Do Something'),
borderSide: BorderSide(color: Colors.blue),
),
DropdownButton Widget:
Dropdown buttons provide a way for users to select options from a list of items. We can customize dropdown buttons by using the "items" and "onChanged" properties. The "items" property takes a list of DropdownMenuItem widgets, and the "onChanged" property specifies the function that will be executed when the user selects an item.
Here's an example:
String dropdownValue = 'Option 1';
DropdownButton<String>(
value: dropdownValue,
onChanged: (String newValue) {
setState(() {
dropdownValue = newValue;
});
},
items: <String>['Option 1', 'Option 2', 'Option 3', 'Option 4']
.map<DropdownMenuItem<String>>((String value) {
return DropdownMenuItem<String>(
value: value,
child: Text(value),
);
}).toList(),
),
In the code above, we created a DropdownButton that allows the user to choose from four options. The "value" property is set to "Option 1" by default, and the "onChanged" property changes the value when the user selects a different option.
In conclusion, Flutter provides various customizable button widgets that allow developers to create beautiful and functional buttons for their apps. The main properties of each button type, such as color, shape, and text, can be customized to suit the specific needs of an app. By using these buttons, you can enhance your app's user interface while maintaining an intuitive and responsive design.
Popular questions
- What are the different types of buttons provided by Flutter for app development?
- Flutter provides various button types, including Raised Button, Flat Button, Outline Button, and Dropdown Button. These buttons can be customized using several properties to fit specific requirements.
- What is the purpose of the Raised Button widget in Flutter?
- The Raised Button widget is a commonly used button style in Flutter that sets a raised button style with shadows and a background color that pops out. It’s perfect for primary actions that need to stand out on a screen.
- How can we customize the appearance of a Flat Button widget?
- The Flat Button widget doesn't have a background color, but its shape, text color, and border properties can be customized. We can use the "textColor", "onPressed", "child", and "shape" properties to customize a Flat Button.
- What is the purpose of the Outline Button widget in Flutter?
- The Outline Button widget is another option for customizing button appearance in Flutter, and it’s mostly used as a secondary action button. Outline buttons don't have a background color but have an outline stroke of a specified color and border width.
- How can we add dropdown lists with options in Flutter apps using the Dropdown Button widget?
- We can add dropdown lists with options using the Dropdown Button widget in Flutter. The "items" property of the DropdownButton widget takes a list of DropdownMenuItem widgets, and the "onChanged" property specifies the function that will be executed when the user selects an item.
Tag
FlutterButtonStyle
