文本光标句柄保持蓝色 [英] Text Cursor Handle stays Blue

问题描述

我尝试了 cursorColor 并将 TextField 包裹在主题其中 textSelectionHandleColor 和 textSelectionColor 设置为任何颜色，但是文本光标保留蓝色 。

我说的是手柄。以下内容都不适合我：

•   import'package：flutter / material.dart'; 
   
   void main（）=> runApp（MyApp（））; 
   
  类MyApp扩展了StatelessWidget {
   @override 
   Widget build（BuildContext context）{
   return MaterialApp（
   theme：Theme.of（context）。 copyWith（textSelectionHandleColor：Colors.red），
  主页：脚手架（
  正文：Center（
  子级：TextField（
   autofocus：true，
  ），
  ），
  ），
  ）； 
  } 
  } 
    

  
  

  I tried cursorColor and wrapping the TextField in a Theme where textSelectionHandleColor and textSelectionColor are set to whatever colors, however, the text cursor stays blue.

  To be clear, I am talking about the handle. None of the following adjust it for me:

  • https://github.com/flutter/flutter/issues/14598

  • https://github.com/flutter/flutter/issues/15571

  解决方案

  Sadly, it is currently not possible to change the textSelectionHandleColor of a TextField by modifying its parent Theme. The only Theme that changes the textSelectionHandleColor is the Theme directly inside the MaterialApp (source).

  Issue on GitHub: textSelectionHandleColor is not working/changing. #20219

  The reason this problem exists is that the handles are rendered inside an Overlay. The Overlay is not a child from the TextField, but instead always a child of the MaterialApp. Here is a failed try from another developer to solve the problem: textSelectionHandleColor taken from parent's context. Fixes #20219

  ---

  Therefore you can currently only adjust the MaterialApp inside your application:

  import 'package:flutter/material.dart';
  
  void main() => runApp(MyApp());
  
  class MyApp extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
      return MaterialApp(
        theme: Theme.of(context).copyWith(textSelectionHandleColor: Colors.red),
        home: Scaffold(
          body: Center(
            child: TextField(
              autofocus: true,
            ),
          ),
        ),
      );
    }
  }
  

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