Change the Highlight Color of selected text

Question

When the user select a text from inside a TextField, the default highlight color is blue. How to change it to green for example ?

Answer 1

2021 answer

Wrap with Theme and use copyWith to preserve other theme data.

 Theme(data: Theme.of(context).copyWith(
   textSelectionTheme: TextSelectionThemeData(
     selectionColor: Colors.green)),
   child: TextFormField()
)

Answer 2

Wrap your text widget with theme and assign the color to the textSelectionColor property inside ThemeData

refer below code for same:- I have changed the text selection color to green

 Theme(
     data: ThemeData(textSelectionColor: Colors.green),
          child: TextField(
              controller: _inputController,
              decoration: InputDecoration(hintText: "Input"),
           ),
  ),