[英]How to change cursor color in flutter
把cursorColor: Colors.white,
放在 TextFormField 里面
这在 iOS 和 Android 中都可以正常工作:
TextField(cursorColor: Colors.white)
但是,如果您想将其设置为主题,那么
解决方案 1 - 原始答案,最近未经过测试,而且似乎已被弃用:
我在这里找到了解决方案:
import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';
MaterialApp(
title: "Rate your Colleagues",
theme: ThemeData(
// for iOS
cupertinoOverrideTheme: CupertinoThemeData(
primaryColor: Colors.red,
),
// for others(Android, Fuchsia)
cursorColor: Colors.red,
home: SplashScreen(),
);
...
解决方案 2 - 编辑过的答案 - 未测试 - 请归功于 @i4guar
我在这里找到了解决方案:
MaterialApp(
title: "Rate your Colleagues",
theme: ThemeData(
textSelectionTheme: TextSelectionThemeData(
cursorColor: darkPrimarySwatchColor,
selectionColor: darkPrimarySwatchColor,
selectionHandleColor: darkPrimarySwatchColor,
),
),
home: SplashScreen(),
);
对于问题 1,您可以在调用MaterialApp
时为theme
属性设置cursorColor
,如下所示
new MaterialApp(
title: "Flutter App",
theme: ThemeData(
cursorColor: Colors.red,
home: HomeScreen(),
)
cursorColor
现在已不为ThemeData
用这个来代替(在iOS和Android版):
MaterialApp(
title: "Rate your Colleagues",
theme: ThemeData(
textSelectionTheme: TextSelectionThemeData(
cursorColor: darkPrimarySwatchColor,
selectionColor: darkPrimarySwatchColor,
selectionHandleColor: darkPrimarySwatchColor,
),
),
home: SplashScreen(),
);
Flutter 已经更新,现在cursorColor是这样使用的:
ThemeData(
...
textSelectionTheme: TextSelectionThemeData(
cursorColor: Colors.blue, //thereby
),
),
我必须将useTextSelectionTheme
设置为true
并为我的自定义深色主题设置 textSelectionTheme :
ThemeData _defaultDarkTheme = ThemeData.dark();
ThemeData _darkTheme = initializeDefaultLineHeight(ThemeData(
brightness: Brightness.dark,
// How to set cursor color for TextFormField
useTextSelectionTheme: true,
textSelectionTheme: _defaultDarkTheme.textSelectionTheme.copyWith(
cursorColor: Colors.grey[600]),
您可以使用:
TextField( cursorColor: Colors.red),
对齐Flutter布局小部件:
阅读更多: https : //flutter.dev/docs/development/ui/layout#aligning-widgets
这是一个示例示例:
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
//Question 1
cursorColor: Colors.green,
),
home: Scaffold(
body: Column(
// Qurestion 2
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
Center(
child: Container(
child: Text("Hello World ! "),
),
),
],
)),
);
}
}
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