I want to center all the titles in my app with theme, theres a way to do it ?
Centering App Bar using Theme
theme: ThemeData(
appBarTheme: AppBarTheme(centerTitle: true),),
use centerTitle: true
appBar: AppBar(
centerTitle: true,
title: Text("Appbar Title"),
),
Related
How can I make a custom color for App Bar with ThemeData?
accentColor is deprecated while colorScheme: ColorScheme.fromSwatch(primarySwatch: Colors.indigo)) expects type MaterialColor.
I know that I can make it this way
Scaffold(
appBar: AppBar(
backgroundColor: Color(0xFF0A0E21),
title: Text('CAPTION'),
),
But I want to specify it in ThemeData
Rather than overriding everything, it often makes sense to extend the parent theme. You can handle this by using the copyWith() method.
More about extending-the-parent-theme.
return MaterialApp(
home: const T1(),
theme: Theme.of(context).copyWith(
appBarTheme: Theme.of(context).appBarTheme.copyWith(
backgroundColor: const Color(0xFF0A0E21),
),
),
As you mentioned, the first way is to set it with backroundColor property.
If this property is null, then the AppBarTheme.backgroundColor is used. AppBarTheme can be set using appBarTheme property of ThemeData.
If AppBarTheme.backgroundColor is also null, then AppBar uses the overall theme's ColorScheme.primary if the overall theme's brightness is Brightness.light, and ColorScheme.surface if the overall theme's brightness is Brightness.dark.
When I’m setting primarySwatch: Colors.blue, I’m getting white texts in AppBar.
However, when I’m switching to primarySwatch: Colors.cyan, texts are black.
I guess, Google does some kind of magic and automatically adjusts it.
How to globally edit theme to show always white texts in AppBar (for title and tabs).
You can use this code and see if that works
appBar: AppBar(
title: Text(
'History',
style: TextStyle(color: Color(0xffffffaa)),
),
),
I use a Scafold which has an app bar with grey background and black as text color. I want to have the status bar transparent and the text also black. Unfortunately the text color is white not matter what I've treid. After reading this post and this one, I've tried the code below, but the text color is still white.
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.light.copyWith(
statusBarColor: Colors.black.withOpacity(0.0), // Color for Android
statusBarIconBrightness: Brightness.light,
statusBarBrightness: Brightness.light,
));
Update:
To make it more clear: In the emulator the bar looks like this which is fine:
On my phone the text color is white, so you can't see it:
To change the app bar theme, you can use appBarTheme property of ThemeData class and to change the text color of AppBar, you can use the textTheme property and set it as you want. The textstyle used for the text in AppBar is headline6, so you can do something like this.
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
debugShowCheckedModeBanner: false,
theme: ThemeData(
primarySwatch: Colors.blue,
//here we are applying the theme to appbar.
appBarTheme: AppBarTheme(
color: Colors.black.withOpacity(0.0),
brightness: Brightness.dark,
),
//here we are setting the theme to the text
primaryTextTheme: TextTheme(
headline6: TextStyle(
color: Colors.black,
)),
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
You can check the below simple code.
Scaffold(
backgroundColor: Colors.red,
appBar: AppBar(
backgroundColor: Colors.transparent,
title: Text(
"Demo",
style: TextStyle(color: Colors.black),
),
centerTitle: true,
),
body:....,)
Is there a way that the AppBars color can be changed through a gradient and opacity as an example? From something lighter to something darker to see the icons above the phone clearer.
Fixed.
appBar: AppBar(
brightness: Brightness.light,
backgroundColor: Colors.white,
elevation: 0.0,
if I understand correctly you want to change the appbar color with one of these methods :
1) change AppBar color only
witch will affect the background of appbar only
appBar: AppBar(
backgroundColor: PrimaryColor,
),
1) change primary App color swatch :
witch will change all the colors of buttons , etc to a certain color including appbar
MaterialApp(
primaryColor: Colors.red,
)
2) Switch to dark mode :
witch will invert the colors of all app to dark mode
MaterialApp(
title: title,
theme: ThemeData.dark(),
)
Is there a way to remove the drop shadow under the app bar (AppBar class) when using a Scaffold widget in Flutter?
Looking at the AppBar constructor, there's an elevation property that can be used to set the height of the app bar and hence the amount of shadow cast. Setting this to zero removes the drop shadow:
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('My App Title'),
elevation: 0,
),
body: const Center(
child: Text('Hello World'),
),
);
}
I have tried something it might help you
AppBar(
backgroundColor: Colors.transparent,
bottomOpacity: 0.0,
elevation: 0.0,
),
Check this out
If you want to remove the shadow of all app bars without repeating code, just add a AppBarTheme property with elevation: 0 to your app theme (ThemeData), inside your MaterialApp widget:
// This code should be located inside your "MyApp" class, or equivalent (in main.dart by default)
return MaterialApp(
// App Theme:
theme: ThemeData(
// ••• ADD THIS: App Bar Theme: •••
appBarTheme: AppBarTheme(
elevation: 0, // This removes the shadow from all App Bars.
)
),
);