Merge pull request #967 from LucasXu0/fix_analysis_issues

Fix analysis issues

Author: LucasXu0

frontend/app_flowy/packages/appflowy_editor/README.md

@@ -21,7 +21,7 @@ and the Flutter guide for
 </p>
 
 <div align="center">
-    <img src="https://i.ibb.co/HNnc1jP/appflowy-editor-example.gif" width = "900"/>
+    <img src="https://github.com/AppFlowy-IO/AppFlowy/blob/main/frontend/app_flowy/packages/appflowy_editor/example/documentation/images/appflowy-editor-example.gif?raw=true" width = "900"/>
 </div>
 
 ## Key Features

frontend/app_flowy/packages/appflowy_editor/documentation/images/appflowy-editor-example.gif

@@ -1,5 +1,3 @@
-import 'package:flutter/material.dart';
-
 import './path.dart';
 
 class Position {
@@ -21,7 +19,7 @@ class Position {
 
   @override
   int get hashCode {
-    final pathHash = hashList(path);
+    final pathHash = Object.hashAll(path);
     return Object.hash(pathHash, offset);
   }
 

frontend/app_flowy/packages/appflowy_editor/lib/src/document/position.dart

@@ -3,7 +3,6 @@ import 'dart:math';
 
 import 'package:appflowy_editor/src/document/attributes.dart';
 import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
 
 // constant number: 2^53 - 1
 const int _maxInt = 9007199254740991;
@@ -462,7 +461,7 @@ class Delta extends Iterable<TextOperation> {
 
   @override
   int get hashCode {
-    return hashList(_operations);
+    return Object.hashAll(_operations);
   }
 
   /// Returned an inverted delta that has the opposite effect of against a base document delta.

frontend/app_flowy/packages/appflowy_editor/lib/src/document/text_delta.dart

@@ -1,7 +1,6 @@
 import 'package:appflowy_editor/src/document/path.dart';
 import 'package:appflowy_editor/src/document/position.dart';
 import 'package:appflowy_editor/src/document/selection.dart';
-import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 void main() {
@@ -75,15 +74,15 @@ void main() {
     final path2 = <int>[1];
     expect(pathEquals(path1, path2), true);
 
-    expect(hashList(path1), hashList(path2));
+    expect(Object.hashAll(path1), Object.hashAll(path2));
   });
 
   test('test path utils 2', () {
     final path1 = <int>[1];
     final path2 = <int>[2];
     expect(pathEquals(path1, path2), false);
 
-    expect(hashList(path1) != hashList(path2), true);
+    expect(Object.hashAll(path1) != Object.hashAll(path2), true);
   });
 
   test('test position comparator', () {