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Code Issues Releases Wiki Activity

Adds new image assets, card-style list, and new data for the veggies (#38)

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This commit is contained in:
Andrew Brogdon
2018-12-19 09:16:26 -08:00
committed by GitHub
parent 2a2c535aab
commit bfb8b8aea9
43 changed files with 390 additions and 576 deletions
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36
veggieseasons/lib/data/preferences.dart
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@@ -11,60 +11,60 @@ import 'package:shared_preferences/shared_preferences.dart';
/// A model class that mirrors the options in [SettingsScreen] and stores data
/// in shared preferences.
class Preferences extends Model {
Preferences() {
_loadingFuture = _load();
}
// Keys to use with shared preferences.
static const _caloriesKey = 'calories';
static const _preferredCategoriesKey = 'preferredCategories';
// Indicates whether a call to [_load] is in progress;
Future<void> _loadingFuture;
// Indicates whether a call to [_loadFromSharedPrefs] is in progress;
Future<void> _loading;
int _desiredCalories = 2000;
Set<VeggieCategory> _preferredCategories = Set<VeggieCategory>();
Future<int> get desiredCalories async {
await _loadingFuture;
await _loading;
return _desiredCalories;
}
Future<Set<VeggieCategory>> get preferredCategories async {
await _loadingFuture;
await _loading;
return Set.from(_preferredCategories);
}
void addPreferredCategory(VeggieCategory category) {
void addPreferredCategory(VeggieCategory category) async {
_preferredCategories.add(category);
_save();
await _saveToSharedPrefs();
notifyListeners();
}
void removePreferredCategory(VeggieCategory category) {
void removePreferredCategory(VeggieCategory category) async {
_preferredCategories.remove(category);
_save();
await _saveToSharedPrefs();
notifyListeners();
}
void setDesiredCalories(int calories) {
void setDesiredCalories(int calories) async {
_desiredCalories = calories;
_save();
await _saveToSharedPrefs();
notifyListeners();
}
Future<void> _save() async {
void load() {
_loading = _loadFromSharedPrefs();
}
Future<void> _saveToSharedPrefs() async {
final prefs = await SharedPreferences.getInstance();
prefs.setInt(_caloriesKey, _desiredCalories);
await prefs.setInt(_caloriesKey, _desiredCalories);
// Store preferred categories as a comma-separated string containing their
// indices.
prefs.setString(_preferredCategoriesKey,
await prefs.setString(_preferredCategoriesKey,
_preferredCategories.map((c) => c.index.toString()).join(','));
}
Future<void> _load() async {
Future<void> _loadFromSharedPrefs() async {
final prefs = await SharedPreferences.getInstance();
_desiredCalories = prefs.getInt(_caloriesKey) ?? 2000;
_preferredCategories.clear();