Although it uses it under the hood to remove the underline from DropdownButton but then applies it's own decoration on top of that Setting border to InputBorder.none will do the job I think the primary situation would be that developers might want to set value to null in order to display the hint. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page. However, this would still require the user to reduce the icon size for DropdownButtonFormField to get the same height as TextField, and the icon sizes will no longer match since TextField's suffixIcon is not surrounded by contentPadding for TextField, whereas the dropdown widget in DropdownButtonFormField is. By clicking Sign up for GitHub, you agree to our terms of service and Is it possible to get app code from uploaded build? Setting it to the first one in the list, makes it too easy for a user to simply bypass the entry even if it is required, because the first one is wrongly selected. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue. We also ran into this - in our case, its not that we want a null item in the item list, its that we set the original value to null because we don't want the list to be preset until the user selects a list item. But It's very difficult to achieve due to the fact that suffix and prefix Icons are placed in another widget (InputDecoration). DropdownButton. I don't see layout issues even after using the value in the menu item. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Follows the app theme and colors. Since both changes necessitate a breaking change (although one more breaking than the other), you could argue that we should just not allow a null value for DropdownMenuItem, but like you said, it's unknown how many developers actually use this pattern. Notify value change / button enabled. dropdownbuttonformfield( decoration: inputdecoration( enabledborder: outlineinputborder( borderside: borderside(color: colors.blue, width: 2), borderradius: borderradius.circular(20), ), border: outlineinputborder( borderside: borderside(color: colors.blue, width: 2), borderradius: borderradius.circular(20), ), filled: true, fillcolor: Please anyone help me. Already on GitHub? Border radius of selection list of DropdownButtonFormField in flutter; Add border Radius in the Inkwell widget in flutter; How to set border radius to bottom app bar in a flutter app? It allows users to take some action such as searching or editing the item. Then inside the BoxDecoration widget add the borderRadius parameter with BorderRadius.circular(50.0). You're right, thins can happen too. Well occasionally send you account related emails. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. How can i make text field with border radius in flutter ??? Border radius of selection list of DropdownButtonFormField in flutter, Add border Radius in the Inkwell widget in flutter. But it's works! Inside the RoundedRectangleBorder, add the side property and assign the BorderSide widget. The consent submitted will only be used for data processing originating from this website. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. How to control Windows 10 via Linux terminal? If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page. Flutter/Dart - Regex for removing hashtag and spaces? the 2nd field (unit) is a DropdownButtonFormField with OutlineInputBorder border; Even with isDense=true there is an extra padding (8 pixes in total: 4 on top, 4 on bottom) between the labelText and the widget that wraps the labelText and the Icon. If the thems' ThemeData.brightness is Brightness.light, default is Colors.grey.shade700.. I am in last stable release of Flutter (Channel stable, v1.17.4). text fieldform color flutter. The border of the form field is not colored while focused. Edit: Actually, it seems to be from the Container calculation described above: When the icon is shorter than 24.0 pixels tall, what ends up happening is that the height being prescribed to the Container that wraps the Row that contains the text and icon in DropdownButtonFormField ends up being taller than the icon and the font in the default case, which is 24.0 (_kDenseButtonHeight). Just wrap DropdownButton inside DropdownButtonHideUnderline like this : Setting the underline property to SizedBox() makes it invisible too: The proper/clean solution nowadays is to use InputBorder.none: You might also want to set border, focusedBorder, errorBorder, and disabledBorder to InputBorder.none if you want to avoid the border from showing in all cases. to your account. We can even include a down arrow icon on the list. flutter text button remove overlay color. The items, elevation, iconSize, isDense, isExpanded , autofocus, and decoration parameters must not be null. but hard to say as you did not share that part of the code Seems you are also missing other code in your DropdownButtonFormField DropdownButtonFormField( value: myVariable, onChanged: (value) { setState(() { myVariable= value; }); }, Steps to add icon button border in Flutter: To add an icon button border radius or rounded border, first, add the normal border as per the instructions here. This sample shows a DropdownButton with a button with Text that corresponds to but is unique from DropdownMenuItem . final, inherited. For example, the migration guide would need to outline how a user would want to set value to null by tapping a DropdownMenuItem if we were to not allow a null value for DropdownMenuItem. One way we could fix this is to have the DropdownButtonFormField's contentPadding behave as TextField's does. Simple and intuitive to use in the app. You create the IconButton looking like a widget and then add the border color. @HansMuller, I don't think it's related to #59196, in this case the Text height is exactly the same. its arrow will be displayed in grey and it will not respond to input. While providing the shape parameter, you can add various shapes such as RoundedRectangleBorder, StadiumBorder, and BeveledRectangleBorder. Features Can be used as regular form field. // contentPadding: EdgeInsets.fromLTRB(12, 24, 12, 16). All rights reserved. Steps to add icon button border in Flutter: Replace the IconButton widget with the Material widget. flutter listtile selected. Here are step by step instructions the to add border to card in Flutter: Locate the file where you have placed the card widget. Is this really worth to have? Assign a default value in value for DropdownButtonFormField. Alexa rank 65,709. flutter textfield outlineinputborder. Example Here is my code. ListView not rebuilding when returned to screen even after using setState()? Steps to Reproduce. As of now, DropdownButtonFormField doesn't support DropdownButtonHideUnderline. To add border to ListTile in Flutter: Locate the file where you have placed the ListTile widget. However it's take a lot of additional code in large forms with additional suffix command icons. You create the IconButton looking like a widget and then add the border color. The thing about DropdownButtonFormField is that it does not update automatically. You could consider updating your flutter version to 2.11.0+, just keep in mind it's still in beta. The real issue is as @HansMuller suggested -- For DropdownButtonFormField, the padding is applied around the Text and the Icon widgets. flutter text form field change underline color. Using Expanded (Recommended) You can wrap your ListView widget inside the Expanded widget and this will allow the ListView to take all the available as long as the Column allows. Note: The main point here is to tell how much tall the ListView will be. A treasure of high quality Flutter tutorials. Here is the the reduced version of my DropdownButtonFormField wrapped in a StreamBuilder. That was what I have done at #46844, after some tests I have realised another issue with this approach, which is: the hit area will be shorter (It will cause bad response to user) and plus it will get a side effect when a custom icon size is set. DevCodeTutorial. . I mean it is very hard to see usage with null values. The fix for the original issue should already be in the master branch as a result of #37145. , . Simple to implement. You can use the InputDecoration and set the border as UnderlineInputBorder. What shall we do today is to show two dropdown buttons i.e the First one we use is DropdownButtonFormField which is used in the Form Widget and the Second one is DropdownButton which is for the normal dropdown button. Since the Icon widget is taller than the text widget in DropdownButtonFormField, the outline for DropdownButtonFormField will look "taller" due to the presence of the icon. Create a DropdownButtonFormField; Supply the required arguments using DropdownMenuItem(child: Text('Some Text), value: 'Some Text'); Add the line: decoration: InputDecoration(labelText: 'Theme'), to the arguments list. The DropDownButton is a widget that we can use to select one unique value from a set of values. May I could make a PR? underline can take a widget so, you just have assigned it an empty Container, or a SizedBox.shrink(). To create a local project with this code sample, run: flutter create --sample=material.DropdownButton.selectedItemBuilder.1 mysample. The consent submitted will only be used for data processing originating from this website. But after adding the default Icon buttons, sometimes you might need to add or customize the border of the Icon buttons. Change state of Flutter widget from outside it's State class. To change the IconButton border color, please follow the instruction here. I was thinking about this a little bit and my first instinct was that we can add an assert at the constructor to ensure that DropdownMenuItem could never be null. A label that appears in a reasonable location in relation to the DropDownButton. DropdownButtonFormField ( decoration: InputDecoration ( enabledBorder: UnderlineInputBorder ( borderSide: BorderSide (color: Colors.white))), value: 2, items: > [ .. So let's look at our first simple about the DropDownButton. It is passed the form field state as input, containing the current value and validation state of this . I actually have made a correction in the widget dropdown.dart, just 1 line of code. Why am I getting some extra, weird characters when making a file from grep output? If the problem persists, please comment below, thanks. An example of data being processed may be a unique identifier stored in a cookie. flutter textformfield hide underline. Border radius of selection list of DropdownButtonFormField in flutter, How to make rounded border for dropdownbutton in flutter?, How to show list of dropdown from botton in flutter, How do I make the shape of the list created by a dropdown button circular? For the TextField, the padding is applied around only the text, but not the icon specified in InputDecorator.suffixIcon. DropdownButtonFormField value does change; Change DropdownButtonFormField value programmatically; when i am trying to select a value in the dropdownitem it wont change instantly i have to exit the dialog box then it does change; SwitchListTile does not change value when displayed in a modal sheet. DropdownButtonFormField, but by using the null value passed into DropdownMenuItem. Inside the Icon widget, add the Icons.arrow_drop_down icon. If not specified, an InputDecorator with the focusColor set to the supplied focusColor (if any) will be used. @shihaohong thks for yours concerns and sensitivity to reach exactly point that I am. Widget icon: The dropdown's icon. mat select remove underline. How to Put Dotted Border on selected Image, Like We see in Photo Editor in Flutter Sign in The Dropdown Button has DropDownMenuItem. However, when the icon is taller, the icon then dictates the height of the overall container, which will never be shorter than it currently is, causing DropdownButtonFormField to be taller than expected. We and our partners use cookies to Store and/or access information on a device. Default is Icons.arrow_drop_down: Widget iconDisabledColor: Icon color when it's disabled. A disabled button will display the DropdownButton.disabledHint widget if it is non-null. in dropdown.dart line 1284 there is a method that calculates the height, the result is 24 if I set it to 16 the DropdownButtonFormField render the same height of the TextField, however I think it's not correct to set it as a constant. DropdownButtonFormField value does change. It is very useful to our Constructor As common, Let's look at the. In the meantime, the workaround is to apply lesser vertical padding to the decoration for DropdownButtonFormField, since there is no way to make the contents of DropdownButtonFormField shorter than 24.0 without introducing a breaking change. Remove underline from DropdownButtonFormField. DropdownButtonFormField; Constructors DropdownButtonFormField ({Key key, T value, @required List < DropdownMenuItem < T > > items, ValueChanged < T > onChanged, InputDecoration decoration = const InputDecoration(), FormFieldSetter < T > onSaved, FormFieldValidator < T > validator, Widget hint}) Creates a DropdownButton widget wrapped in an .