I'm trying to implement my own TabBar design in flutter. I was able to get a pretty good result. However, when I tap another tab to change the tab, there is a highlight create by default as shown in the image here. I'm wondering if there is any way I can get rid of the square highlight on tapped. I've been looking around for like almost a day not and did not find any solution.
If anyone have any solution please let me know. Thanks.
Edited: as CopsOnRoad suggestion I wrapped the TabBar in the Container and set the color to Colors.transparent, but it does not really disappear so I tried to set the color to Theme.of(context).canvasColor for now.
Container(
color: Theme.of(context).canvasColor,
child: TabBar(
isScrollable: true,
indicator: ShapeDecoration(
color: Color(0xFFE6E6E6),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(99.0)
)
),
tabs: List<Widget>.generate(
categories.length,
(index) => Tab(
child: Text(
categories[index],
style: TextStyle(
fontFamily: 'Hiragino Sans',
fontWeight: FontWeight.bold,
fontSize: 18.0,
color: Color(0xFF4D4D4D),
),
),
)
),
)
)
You can also disable the ripple/highlight/splash effect with the code below. Add the Theme with the data of ThemeData where the hightlight and splash color is both transparent.
return Scaffold(
appBar: PreferredSize(
preferredSize: Size.fromHeight(70),
child: Theme(
data: ThemeData(
highlightColor: Colors.transparent,
splashColor: Colors.transparent,
),
child: AppBar( ... )
That's the ripple effect. You can remove it by wrapping it in a Container and giving transparent color to it.
you should set tabbar splashFactory: NoSplash.splashFactory as this post mentioned.
TabBar(splashFactory: NoSplash.splashFactory,)
How to disable default Widget splash effect in Flutter?
Here is my custom solution from #Tempelriter
Theme(
data: Theme.of(context).copyWith(
highlightColor: Colors.transparent,
splashColor: Colors.transparent,
),
child: Container(
decoration: BoxDecoration(
color: Colors.gray,
border: Border.all(
color: Colors.red
),
borderRadius: BorderRadius.circular(50),
),
child: TabBar(
isScrollable: true,
tabs: [
Tab(text: 'comingSoon'),
Tab(text: 'selling'),
],
),
),
);
I had the similar issue. I tried to read the documentation and found it.
///
/// If non-null, it is resolved against one of [MaterialState.focused],
/// [MaterialState.hovered], and [MaterialState.pressed].
///
/// [MaterialState.pressed] triggers a ripple (an ink splash), per
/// the current Material Design spec.
///
/// If the overlay color is null or resolves to null, then the default values
/// for [InkResponse.focusColor], [InkResponse.hoverColor], [InkResponse.splashColor],
/// and [InkResponse.highlightColor] will be used instead.
final MaterialStateProperty<Color?>? overlayColor;
Finally just added overlayColor to transparent. It solved my issue.
overlayColor: MaterialStateProperty.all(Colors.transparent)
Related
I was trying to create a login button, which will be animated on pressing on it. But while clicking on the button( on the PhysicalModel), a ripple effect is shown only on the Login text, not entirely on the physical model. How to add ripples to PhysicalModel or remove the ripple effect from MaterialButton ?
PhysicalModel(
color: Colors.teal,
borderRadius: BorderRadius.circular(50.0),
child: MaterialButton(
key: _globalKey,
child: Text("Login"),
onPressed: () {
setState(() {
if (_state == 0) {
animateButton();
}
});
},
elevation: 4.0,
minWidth: _width,
height: 20.0,
),
)
If you want to remove the splash color of the MaterialButton just change these colors to transparent.
MaterialButton(
splashColor: Colors.transparent,
highlightColor: Colors.transparent,
If you want ripple effect for your PhysicalModel:
PhysicalModel(
color: Colors.teal,
borderRadius: BorderRadius.circular(50.0),
child: RawMaterialButton(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(50.0)),
padding: EdgeInsets.symmetric(vertical: 15.0, horizontal: 30.0),
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
child: Text("Login"),
onPressed: () {
setState(() {});
},
elevation: 4.0,
),
)
Here is my solution, you can simply set Your PhysicModel color to transparent, while using a Ink widget set color to what you need for your child widget:
PhysicalModel(
borderRadius: BorderRadius.circular(16),
shadowColor: Colors.grey.withAlpha(10),
elevation: 16,
color: Colors.transparent,
child: Ink(
color: Theme.of(context).scaffoldBackgroundColor,
child:
It's simply, and then you can have Inkwell effect as well as keep your color.
Adding Material Touch Ripples
Flutter provides the InkWell Widget to achieve this effect.
Definition:
A rectangular area of a Material that responds to touch.
Also: The InkWell widget must have a Material widget as an ancestor. The Material widget is where the ink reactions are actually painted. This matches the material design premise wherein the Material is what is actually reacting to touches by spreading ink.
Directions
Create a Widget we want to tap
Wrap it in an InkWell Widget to manage tap callbacks and ripple
animations
InkWell(
// When the user taps the button, show a snackbar
onTap: () {
Scaffold.of(context).showSnackBar(SnackBar(
content: Text('Tap'),
));
},
child: PhysicalModel(
color: Colors.teal,
borderRadius: BorderRadius.circular(50.0),
child: MaterialButton /*or a FlatButton */(
key: _globalKey,
child: Text("Login"),
onPressed: () {
setState(() {
if (_state == 0) {
animateButton();
}
});
},
elevation: 4.0,
minWidth: _width,
height: 20.0,
),
)),
I have used the Expansion Tile to generate a Expansion List View.
I'm facing some customization issues in Expansion Tile Header.
Below is my code.
ExpansionTile(
title: Container(
child: Text(
getCategory(i),
style: TextStyle(
color: Colors.white,
),
),
color: Colors.black
),
children: <Widget>[
new Container(
height: 60.0,
margin: const EdgeInsets.only(top:10.0, left: 10.0, right:10.0, bottom: 10.0),
decoration: BoxDecoration(
color: Colors.blue,
borderRadius: new BorderRadius.all( Radius.circular(5.0) ),
),
),
new Container(
height: 60.0,
margin: const EdgeInsets.only(top:10.0, left: 10.0, right:10.0, bottom: 0.0),
decoration: BoxDecoration(
color: Colors.green,
borderRadius: new BorderRadius.all( Radius.circular(5.0) ),
),
)
],
backgroundColor: Colors.white,
)
I'm getting below result.
What I'm expecting to have is below.
If anyone know a workaround to customize the header color, please advice.
If you check the source code of the ExpansionTitle , you will notice that the header item is a ListTile , so you can't change the background because it hasn't a parent with a color property.
I modified a little the class to support what you need.
Add this file to your project: https://gist.github.com/diegoveloper/02424eebd4d6e06ae649b31e4ebcf53c
And import like this way to avoid conflicts because the same name.
import 'package:nameofyourapp/custom_expansion_tile.dart' as custom;
I put an alias 'custom' but you can change for any alias.
Usage:
custom.ExpansionTile(
headerBackgroundColor: Colors.black,
iconColor: Colors.white,
title: Container(
...
Remember, Flutter has a lot of Widgets out of the box, but If any of them don't fit what you need, you'll have to check the source code and create your own widget.
In my opinion, the more preferable way is wrap It with a new Theme, so It could work as expected:
Theme(
data: Theme.of(context).copyWith(accentColor: ColorPalette.fontColor, unselectedWidgetColor: ColorPalette.fontColor..withOpacity(0.8)),
child: ListView(
children: <Widget>[
ExpansionTile(
title: Text("Padding"),
children: <Widget>[
Text("Left"),
Text("Top"),
Text("Right"),
Text("Bottom"),
],
)
],
),
)
Instead of copy a full class to customize, check the source code, you could find more Theme attribute to override.
_borderColorTween
..end = theme.dividerColor;
_headerColorTween
..begin = theme.textTheme.subhead.color
..end = theme.accentColor;
_iconColorTween
..begin = theme.unselectedWidgetColor
..end = theme.accentColor;
_backgroundColorTween
..end = widget.backgroundColor;
If you want a more animatable widget or something, I would recommend diegoveloper's answer. Otherwise, just wrap It with Theme, so you won't need to maintain the Component, and get native flutter component.
A much easier way than all of those suggested is to wrap your ExpansionTile in a ListTileTheme.
Once you do this, you can change the backgroundColor to whatever you'd like. In my case, I've done the same thing with the ListTiles inside of the ExpansionTile so that the header can have one color and the children can have another color.
return ListTileTheme(
tileColor: Colors.grey.shade300,
child: ExpansionTile(
leading: Padding(
padding: const EdgeInsets.only(top:4.0),
child: Text('Outer Tile'),
),
title: null,
children: [
Slidable(
actionPane: SlidableDrawerActionPane(),
child: ListTileTheme(
tileColor: Colors.white,
child: ListTile(
title: Text('Inner Tile'),
subtitle: Text('subtitle'),
leading: FlutterLogo(),
),
),
)
],
),
);
I think this is easier than digging through the docs to find which Theme elements correspond to individual ListTile parameters.
I think better this solution more than custom list tile .
Widget customTheme(Widget child, BuildContext context) => Theme(
data: Theme.of(context).copyWith(
dividerColor: Colors.transparent,
dividerTheme: DividerThemeData(
color: Theme.of(context).colorScheme.background)),
child: child,
);
Code Gist
It seems the ExpansionTile was changed and you can now directly configure lots of colors. As an example, for the arrows:
return ExpansionTile(
// sets the color of the arrow when collapsed
collapsedIconColor: Colors.red,
// sets the color of the arrow when expanded
iconColor: Colors.green,
);
For changing trailing arrow icon color you can wrap expansion tile with Theme and make theme light and set accet color and primary color to dark and it will work.
return Theme(
data: ThemeData.light()
.copyWith(accentColor: darkAccent, primaryColor: darkAccent),
child: ExpansionTile(
title: Text(
data['number'],
style:
TextStyle(color: darkAccent, fontWeight: FontWeight.bold),
),
Another option which should work is wrapping both the entire expansion tile and each individual container in a Card() widget as they have a color property. The downside is that the background for your expansion will be colored as well as the title, but if you set a color for the child cards, they will not be affected by the parent an so they could be individually colored as you like.
For trouble with the arrow color: notice it's an ExpandIcon, defined as a local Widget expandIconContainer in _ExpansionPanelListState.build().
When your ExpansionPanel uses canTapOnHeader: true, you get ExpandIcon(onPressed: null), so the color used for the underlying IconButton is determined by Theme#disabledColor.
I use this great little plugin, much more flexible than the Flutter Material. You can change the background and borders and have custom icons for open and close states. https://pub.dev/packages/configurable_expansion_tile
Is there a way to remove the blur of the CupertinoNavigationBar so it's truly transparent? I got rid of the border and color but there's a blur, for the android AppBar there isn't any blur but for the iOS AppBar it's just there. I check the code for it and there's an ImageFilter.blur(sigmaX: 10.0, sigmaY: 10.0) applied to it but how do I remove it?
Code:
CupertinoNavigationBar(
backgroundColor: Colors.transparent,
border: Border.all(
color: Colors.transparent,
width: 0.0,
style: BorderStyle.none
),
leading: IconButton(
icon: Icon(
Icons.close,
color: Colors.red,
),
onPressed: () {
Navigator.pop(context);
}),
automaticallyImplyLeading: false,
trailing: IconButton(
icon: Icon(
Icons.refresh,
color: Colors.blue,
),
onPressed: widget.onRestart
),
),
CupertinoNavigationBar has a border property. If you wish to remove the border, you can do something like this:
CupertinoNavigationBar(
border: Border(bottom: BorderSide(color: Colors.transparent)),
));
There is no API at the moment to do this. You'd need open a GitHub issue to request this feature, or alternatively fork the Flutter lib and remove that code yourself. It seems like reasonable request, and it's probably just a constructor flag, so could be a relatively quick fix for the Flutter team to implement.
question 1:
how to add a notch to flutter bottom sheet around the floatingactionbutton, so that it looks like a bottomappbar (with shape of CircularNotchedRectangle()) but behave like bottomsheet (can drag to dismiss)
question 2:
how to make a bottomsheet non-dismissible yet still draggable. (similiar to android's bottomsheet)
question 3:
bottomsheet peek height, bottom sheet that dismissible, but also expandable (again, just like android bottomsheet)
is it possible to achieve what I've listed above? or i'm out of luck and have to use a 3rd party library? (if there's one?)
hope its help :)
Scaffold(
floatingActionButtonLocation: FloatingActionButtonLocation.startDocked, //specify the location of the FAB
floatingActionButton: FloatingActionButton(
backgroundColor: Colors.blue,
onPressed: () {
print('OK');
},
tooltip: "start FAB",
child: Container(
margin: EdgeInsets.all(15.0),
child: Icon(Icons.add),
),
elevation: 4.0,
),
bottomNavigationBar: BottomAppBar(
child: Container(
color: mycolor,
height: 35,
),
)
);
You can use this technique too
Scaffold(
backgroundColor: myBackgroundColor,
floatingActionButtonLocation: FloatingActionButtonLocation.startDocked, //specify the location of the FAB
floatingActionButton: CircleAvatar(
radius: 32,
backgroundColor: myBackgroundColor,
child: Padding(
padding: EdgeInsets.all(1),
child: FloatingActionButton(
backgroundColor: MyColor.textColor,
onPressed: () {
print('OK');
},
child: Container(
margin: EdgeInsets.all(15.0),
child: Icon(Icons.add),
),
elevation: 4.0,
),
),
),
bottomNavigationBar: BottomAppBar(
child: Container(
color: MyColor.textColor,
height: 35,
),
)
);
I want a way to make a TextField or EditableText's text wrap onto another line.
And how to make them multiline.
I don't know if it matters, but the EditableText sits inside a ListTile > Card > Container.
This is my code:
return ListTile(
title: Card(
child: Container(
padding: EdgeInsets.all(10.0),
child: EditableText(
textAlign: TextAlign.start,
focusNode: _focusNode,
controller: _textEditingController,
style: TextStyle(
color: Colors.black,
fontSize: 18.0,
),
keyboardType: TextInputType.multiline,
cursorColor: Colors.blue,
),
),
),
);
It doesn't work please help. I have searched everywhere now!
I'm running flutter version: 0.4.4 and dart version: 2.0.0-dev.54.0
You need to set the property maxLines to either null (for infinite growth) or a fixed number.
By default maxLines is equal to 1.