🎨 Update code through new analyzer options.

Author: AlexV525

analysis_options.yaml

@@ -59,7 +59,7 @@ linter:
     - avoid_classes_with_only_static_members
     # - avoid_double_and_int_checks # only useful when targeting JS runtime
     - avoid_empty_else
-    # - avoid_equals_and_hash_code_on_mutable_classes
+    - avoid_equals_and_hash_code_on_mutable_classes
     - avoid_field_initializers_in_const_classes
     - avoid_function_literals_in_foreach_calls
     # - avoid_implementing_value_types # not yet tested
@@ -175,7 +175,7 @@ linter:
     - sort_constructors_first
     - sort_pub_dependencies
     - sort_unnamed_constructors_first
-    # - test_types_in_equals
+    - test_types_in_equals
     - throw_in_finally
     # - type_annotate_public_apis # subset of always_specify_types
     - type_init_formals
@@ -192,7 +192,7 @@ linter:
     - unnecessary_overrides
     - unnecessary_parenthesis
     - unnecessary_statements
-    # - unnecessary_string_interpolations
+    - unnecessary_string_interpolations
     - unnecessary_this
     - unrelated_type_equality_checks
     # - unsafe_html # not yet tested

lib/src/constants/text_delegate.dart

@@ -101,9 +101,9 @@ class DefaultTextDelegate implements TextDelegate {
   @override
   String durationIndicatorBuilder(Duration duration) {
     const String separator = ':';
-    final String minute = '${(duration.inMinutes).toString().padLeft(2, '0')}';
+    final String minute = duration.inMinutes.toString().padLeft(2, '0');
     final String second =
-        '${((duration - Duration(minutes: duration.inMinutes)).inSeconds).toString().padLeft(2, '0')}';
+        ((duration - Duration(minutes: duration.inMinutes)).inSeconds).toString().padLeft(2, '0');
     return '$minute$separator$second';
   }
 }

lib/src/provider/asset_entity_image_provider.dart

@@ -9,8 +9,9 @@ import 'package:flutter/material.dart';
 import 'package:flutter/foundation.dart';
 import 'package:photo_manager/photo_manager.dart';
 
+@immutable
 class AssetEntityImageProvider extends ImageProvider<AssetEntityImageProvider> {
-  AssetEntityImageProvider(
+  const AssetEntityImageProvider(
     this.entity, {
     this.scale = 1.0,
     this.thumbSize = 200,
@@ -33,9 +34,7 @@ class AssetEntityImageProvider extends ImageProvider<AssetEntityImageProvider> {
 
   /// File type for the image asset, use it for some special type detection.
   /// 图片资源的类型，用于某些特殊类型的判断
-  ImageFileType _imageFileType;
-
-  ImageFileType get imageFileType => _imageFileType ?? _getType();
+  ImageFileType get imageFileType => _getType();
 
   @override
   ImageStreamCompleter load(

lib/src/widget/asset_picker.dart

@@ -235,7 +235,7 @@ class AssetPicker extends StatelessWidget {
                     if (provider.currentPathEntity != null)
                       Flexible(
                         child: Text(
-                          '${provider.currentPathEntity.name}',
+                          provider.currentPathEntity.name ?? '',
                           style: const TextStyle(
                             fontSize: 18.0,
                             fontWeight: FontWeight.normal,
@@ -329,7 +329,7 @@ class AssetPicker extends StatelessWidget {
                         child: Padding(
                           padding: const EdgeInsets.only(right: 10.0),
                           child: Text(
-                            '${pathEntity.name}',
+                            pathEntity.name ?? '',
                             style: const TextStyle(fontSize: 18.0),
                             maxLines: 1,
                             overflow: TextOverflow.ellipsis,

lib/src/widget/builder/audio_page_builder.dart

@@ -89,7 +89,7 @@ class _AudioPageBuilderState extends State<AudioPageBuilder> {
   /// 标题组件
   Widget get titleWidget => Text(
         widget.asset.title,
-        style: TextStyle(
+        style: const TextStyle(
           fontSize: 20.0,
           fontWeight: FontWeight.normal,
         ),
@@ -137,7 +137,7 @@ class _AudioPageBuilderState extends State<AudioPageBuilder> {
             '${Constants.textDelegate.durationIndicatorBuilder(data.data)}'
             ' / '
             '${Constants.textDelegate.durationIndicatorBuilder(assetDuration)}',
-            style: TextStyle(
+            style: const TextStyle(
               fontSize: 20.0,
               fontWeight: FontWeight.normal,
             ),