Preclean

web_native/lib/settings/app_themes.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+
+class AppThemes {
+  static final appThemeData = {
+    AppTheme.lightTheme: ThemeData(
+      scaffoldBackgroundColor: Colors.white,
+      primarySwatch: Colors.blue,
+      backgroundColor: Colors.white,
+      textTheme: TextTheme(
+        bodyText1: TextStyle(
+          color: Colors.black,
+        ),
+      ),
+    ),
+    AppTheme.darkTheme: ThemeData(
+      scaffoldBackgroundColor: Colors.black,
+      primarySwatch: Colors.teal,
+      backgroundColor: Colors.black,
+      textTheme: TextTheme(
+        bodyText1: TextStyle(
+          color: Colors.white,
+        ),
+      ),
+    )
+  };
+}
+
+enum AppTheme {
+  lightTheme,
+  darkTheme,
+}

web_native/lib/settings/preferences.dart

@@ -0,0 +1,39 @@
+import 'dart:convert';
+
+import 'package:imagini/settings/app_themes.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class Preferences {
+  //
+  static SharedPreferences preferences;
+  static const String KEY_SELECTED_THEME = 'key_selected_theme';
+
+  static init() async {
+    preferences = await SharedPreferences.getInstance();
+  }
+
+  static void saveTheme(AppTheme selectedTheme) async {
+    if (null == selectedTheme) {
+      selectedTheme = AppTheme.lightTheme;
+    }
+    String theme = jsonEncode(selectedTheme.toString());
+    preferences.setString(KEY_SELECTED_THEME, theme);
+  }
+
+  static AppTheme getTheme() {
+    String theme = preferences.getString(KEY_SELECTED_THEME);
+    if (null == theme) {
+      return AppTheme.lightTheme;
+    }
+    return getThemeFromString(jsonDecode(theme));
+  }
+
+  static AppTheme getThemeFromString(String themeString) {
+    for (AppTheme theme in AppTheme.values) {
+      if (theme.toString() == themeString) {
+        return theme;
+      }
+    }
+    return null;
+  }
+}