how to find how much line type in texfiles flutter

Energetic Eland answered on August 25, 2022 Popularity 1/10 Helpfulness 1/10

answer how to find how much line type in texfiles flutter

how to find how much line type in texfiles flutter

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class MyCustomForm extends StatefulWidget {
  @override
  Page1 createState() => Page1();
}

class Page1 extends State<MyCustomForm> {

  final TextEditingController myController = TextEditingController();
  int numLines = 0;

  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      body: new ListView(
        children: <Widget>[
          new Container(
            padding: new EdgeInsets.all(10.0),
            child: new Column(
              children: <Widget>[
                new TextField(
                  keyboardType: TextInputType.multiline,
                  maxLines: 26,
                  controller: myController,
                  onChanged: (String e){
                     setState((){
                         numLines = '\n'.allMatches(e).length + 1;
                     })
                  },
                  decoration: new InputDecoration(
                      border: new OutlineInputBorder(
                          borderRadius: new BorderRadius.circular(20.0))),
                )
              ],
            ),
          ),
        ],
      ),
    );
  }
}

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: stackoverflow.com

Tags: find flutter line whatever

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Contributed on Aug 25 2022

Energetic Eland

0 Answers Avg Quality 2/10

how to find how much line type in texfiles flutter

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