SearchDelegate with custom maxLines in TextField

[fh32000]

I need to use SearchDelegate as lang to translate so i need to enter multi line text

Proposal

I think it will be good if i can @OverRide as TextStyle

[fh32000]

i try

 @override
  TextStyle get searchFieldStyle => TextStyle(
    color: Colors.red,
    fontSize: 9.0,
    // maxLines: null,

  );
  @override
  InputDecorationTheme get searchFieldDecorationTheme => InputDecorationTheme(
     helperMaxLines: null,
  );

not working

[darshankawar]

@fh32000
I am not too clear on your request. Can you please elaborate on your use case / example in detail and a detailed proposal so that we can properly address this ?

Thanks.

[fh32000]

import 'package:flutter/material.dart';

class WordSearch extends SearchDelegate<String> {
  WordSearch(this._wordsHistory, this.searchFieldLabel);

  final List<String> _wordsHistory;
  String? _result;
  @override
  String? searchFieldLabel;

  @override
  List<Widget> buildActions(BuildContext context) {
    return <Widget>[
      IconButton(
        icon: const Icon(Icons.clear),
        onPressed: () {
          /// Close the words input screen if the user
          /// clicks on [x] and [query] is empty
          /// else clear query
          if (query.isEmpty) {
            close(context, _result ?? query);
          } else {
            query = '';
          }
        },
      )
    ];
  }

  @override
  Widget buildLeading(BuildContext context) {
    return IconButton(
      icon: const Icon(Icons.arrow_back),
      onPressed: () {
        ///Close the words screen and return the input
        close(context, _result ?? query);
      },
    );
  }

  @override
  Widget buildResults(BuildContext context) {
    final suggestions = _wordsHistory.where((String name) {
      return name.toLowerCase().contains(query.toLowerCase());
    });

    return ListView.builder(
      itemCount: suggestions.length,
      itemBuilder: (BuildContext context, int index) {
        return ListTile(
          title: Text(
            suggestions.elementAt(index),
          ),
          onTap: () {
            _result = suggestions.elementAt(index);
            close(context, _result ?? query);
          },
        );
      },
    );
  }

  @override
  TextStyle get searchFieldStyle => TextStyle(
    color: Colors.red,
    fontSize: 9.0,
-// maxLines: null,

  );
  

  @override
  Widget buildSuggestions(BuildContext context) {
    final suggestions = _wordsHistory.where((String name) {
      return name.toLowerCase().contains(query.toLowerCase());
    });
    return ListView.separated(
      separatorBuilder: (_, __) {
        return Divider(
          thickness: 1.5,
          endIndent: 10,
          indent: 10,
        );
      },
      itemCount: suggestions.length,
      itemBuilder: (BuildContext context, int index) {
        return ListTile(
          title: Padding(
            padding: const EdgeInsets.all(8.0),
            child: ListTile(
              title: Text(
                suggestions.elementAt(index),
                maxLines: 2,
                overflow: TextOverflow.ellipsis,
              ),
              trailing: Icon(Icons.history),
            ),
          ),
          onTap: () {
            query = suggestions.elementAt(index);
            close(context, _result ?? query);
          },
        );
      },
    );
  }
}

I try to add multiline text field in SearchDelegate but not work
@darshankawar

[fh32000]

import 'package:flutter/material.dart';

class WordSearch extends SearchDelegate<String> {
  WordSearch(this._wordsHistory, this.searchFieldLabel);

  final List<String> _wordsHistory;
  String? _result;
  @override
  String? searchFieldLabel;

  @override
  List<Widget> buildActions(BuildContext context) {
    return <Widget>[
      IconButton(
        icon: const Icon(Icons.clear),
        onPressed: () {
          /// Close the words input screen if the user
          /// clicks on [x] and [query] is empty
          /// else clear query
          if (query.isEmpty) {
            close(context, _result ?? query);
          } else {
            query = '';
          }
        },
      )
    ];
  }

  @override
  Widget buildLeading(BuildContext context) {
    return IconButton(
      icon: const Icon(Icons.arrow_back),
      onPressed: () {
        ///Close the words screen and return the input
        close(context, _result ?? query);
      },
    );
  }

  @override
  Widget buildResults(BuildContext context) {
    final suggestions = _wordsHistory.where((String name) {
      return name.toLowerCase().contains(query.toLowerCase());
    });

    return ListView.builder(
      itemCount: suggestions.length,
      itemBuilder: (BuildContext context, int index) {
        return ListTile(
          title: Text(
            suggestions.elementAt(index),
          ),
          onTap: () {
            _result = suggestions.elementAt(index);
            close(context, _result ?? query);
          },
        );
      },
    );
  }

  @override
  TextStyle get searchFieldStyle => TextStyle(
    color: Colors.red,
    fontSize: 9.0,
-// maxLines: null,

  );
  

  @override
  Widget buildSuggestions(BuildContext context) {
    final suggestions = _wordsHistory.where((String name) {
      return name.toLowerCase().contains(query.toLowerCase());
    });
    return ListView.separated(
      separatorBuilder: (_, __) {
        return Divider(
          thickness: 1.5,
          endIndent: 10,
          indent: 10,
        );
      },
      itemCount: suggestions.length,
      itemBuilder: (BuildContext context, int index) {
        return ListTile(
          title: Padding(
            padding: const EdgeInsets.all(8.0),
            child: ListTile(
              title: Text(
                suggestions.elementAt(index),
                maxLines: 2,
                overflow: TextOverflow.ellipsis,
              ),
              trailing: Icon(Icons.history),
            ),
          ),
          onTap: () {
            query = suggestions.elementAt(index);
            close(context, _result ?? query);
          },
        );
      },
    );
  }
}

I try to add multiline text field in SearchDelegate but not work
@darshankawar

[darshankawar]

@fh32000
Can you check if this issue sounds similar to yours ? #11416

If not, please provide a complete minimal reproducible code sample that we can directly copy paste and run to verify this.

Thanks.

[darshankawar]

Without additional information, we are unfortunately not sure how to resolve this issue.
We are therefore reluctantly going to close this bug for now.
Please don't hesitate to comment on the bug if you have any more information for us; we will reopen it right away!
Thanks for your contribution.

Could everyone who still has this problem please file a new issue with the exact description of what happens, logs, and the output of flutter doctor -v.
All system setups can be slightly different, so it's always better to open new issues and reference related issues.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.