Outline Dropdown Deed For Free

To change the border radius of Flutter dropdown, we have to use the border radius constructor of the Flutter dropdown button widget. Then pass it the border radius, in our case we are using border radius circular which will make all sides circular with the same value.

For that we have to use the icon constructor of the Flutter dropdown button. Then passing it Flutter icon widget, so in that way we can change the Flutter dropdown icon.

First, you will have to create a dropdown widget then you can create a data model from where list will populate. Then I have explained how to handle onchange event on flutter dropdown. You can watch this video and then just copy and paste the code from the link and you have created a flutter dropdown.

To add a border to the dropdown button, if you use the DropdownButton widget, replace it with the DropdownButtonFormField. Inside the DropdownButtonFormField widget, you can specify the decoration property and then use the InputDecoration and OutlineInputBorder widget.

This code uses the dropdownButtonBuilder property to construct a customized DropdownButton widget. We place it inside a Container widget to set its background color and border radius, add padding, set mainAxisAlignment of Row widget to MainAxisAlignment.

To add border to dropDownButtonFormField, we use decoration property that is already present in the DropDownButtonFormField. See here: decoration: const InputDecoration( border: OutlineInputBorder(), ), Now let's see how can you change the dropdownbutton radius to make a rounded border.

Change dropdown button color in Flutter Wrap your DropdownButton inside the Container . Inside the Container , add the decoration property and assign the BoxDecoration widget. Inside the BoxDecoration add the color property and assign the color of your choice. Run the app.

To change the dropdown Button color in Flutter, simply wrap your DropdownButton widget inside the Container and provide the styling instructions inside the decoration property using the BoxDecoration widget. Using the color property (insideBoxDecoration) you can assign the color.