70 lines
2.1 KiB
Dart
70 lines
2.1 KiB
Dart
import 'dart:io';
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import 'package:flutter/widgets.dart';
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import 'package:image_picker/image_picker.dart';
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import 'package:path/path.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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class CompassImageProvider extends ChangeNotifier {
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CompassImageProvider() {
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loadCompassImage();
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}
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final Future<SharedPreferences> _prefs = SharedPreferences.getInstance();
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ImageProvider _rotateImage;
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ImageProvider get rotateImage => _rotateImage;
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// 加载罗盘图片
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void loadCompassImage() async {
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final prefs = await _prefs;
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final appDataDirectory = await getApplicationDocumentsDirectory();
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String pathString = prefs.getString('rotate_image');
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if (pathString != null) {
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File file = File(join(appDataDirectory.path, pathString));
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var isFileExist = await file.exists();
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if (isFileExist) {
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_rotateImage = FileImage(file);
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} else {
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_rotateImage = null;
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}
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} else {
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_rotateImage = null;
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}
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notifyListeners();
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}
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void setSelectedRotateImage(XFile res) async {
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final appDataDirectory = await getApplicationDocumentsDirectory();
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print(res.path);
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String pathString = res.name;
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if (pathString == null) {
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return;
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}
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// imageCache.clear();
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// res.saveTo(join(appDataDirectory.path, res.name));
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res.saveTo(
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join(appDataDirectory.path, 'rotate_image${extension(res.name)}'));
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final prefs = await _prefs;
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// final appDataDirectory = await getApplicationDocumentsDirectory();
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// File file = File(join(appDataDirectory.path, pathString));
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// File file =
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// File(join(appDataDirectory.path, 'rotate_image${extension(res.name)}'));
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File file = File(res.path);
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print(file);
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var isFileExist = await file.exists();
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print(isFileExist);
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if (isFileExist) {
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_rotateImage = FileImage(file);
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} else {
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_rotateImage = null;
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}
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prefs.setString('rotate_image', 'rotate_image${extension(res.name)}');
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// prefs.setString('rotate_image', pathString);
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// imageCache.clearLiveImages();
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notifyListeners();
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}
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}
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