I’ve started getting a warning every time I create a new class.
Use key in widget constructors.
Prefer const with constant constructor.
and so on. Where these errors are coming from and how do I get rid of it?
analysis_options.yaml file which is located at the root of your project:
include: package:flutter_lints/flutter.yaml # Add these lines linter: rules: use_key_in_widget_constructors: false
To disable the rule for a specific file, put this line anywhere in your code.
// ignore_for_file: prefer_const_constructors
Recently Flutter team created a new package
flutter_lints and it’s added to your
analysis_options.yaml file by default for newly created project.
You can simply remove the following line from your
However, I would suggest you to at least have some rules in it, for example, you can add these rules (from
pedantic) and remove the one you don’t want.
linter: rules: - always_declare_return_types - always_require_non_null_named_parameters - annotate_overrides - avoid_init_to_null - avoid_null_checks_in_equality_operators - avoid_relative_lib_imports - avoid_return_types_on_setters - avoid_shadowing_type_parameters - avoid_single_cascade_in_expression_statements - avoid_types_as_parameter_names - await_only_futures - camel_case_extensions - curly_braces_in_flow_control_structures - empty_catches - empty_constructor_bodies - library_names - library_prefixes - no_duplicate_case_values - null_closures - omit_local_variable_types - prefer_adjacent_string_concatenation - prefer_collection_literals - prefer_conditional_assignment - prefer_contains - prefer_equal_for_default_values - prefer_final_fields - prefer_for_elements_to_map_fromIterable - prefer_generic_function_type_aliases - prefer_if_null_operators - prefer_inlined_adds - prefer_is_empty - prefer_is_not_empty - prefer_iterable_whereType - prefer_single_quotes - prefer_spread_collections - recursive_getters - slash_for_doc_comments - sort_child_properties_last - type_init_formals - unawaited_futures - unnecessary_brace_in_string_interps - unnecessary_const - unnecessary_getters_setters - unnecessary_new - unnecessary_null_in_if_null_operators - unnecessary_this - unrelated_type_equality_checks - unsafe_html - use_full_hex_values_for_flutter_colors - use_function_type_syntax_for_parameters - use_rethrow_when_possible - valid_regexps
Answered By – iDecode
Answer Checked By – Dawn Plyler (FlutterFixes Volunteer)