🐛 修复了存储快照对Android API 30以下的系统出错的BUG

android/app/src/main/AndroidManifest.xml

@@ -1,7 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <application
         android:name="${applicationName}"
         android:enableOnBackInvokedCallback="true"

lib/l10n/app_en.arb

@@ -498,7 +498,7 @@
   "@exportPlayerStateBtnTitle": {
     "description": "Title of the export player state button"
   },
-  "exportPlayerState": "{exportPlayerState, select, success{Exported successfully !} error{Failed to export the player state} denied{Permission denied, please allow the storage access permission} other{exportPlayerState}}",
+  "exportPlayerState": "{exportPlayerState, select, success{Exported successfully !} error{Failed to export the player stat snapshot} denied{Permission denied, please allow the storage access permission} other{exportPlayerState}}",
   "@exportPlayerState": {
     "description": "Tip for the export player state",
     "placeholders": {

lib/utils/file_exporter/android_file_exporter.dart

@@ -1,26 +1,53 @@
+import 'dart:developer';
 import 'dart:io';
 
 import 'package:battlefield_2042_state/utils/tools.dart';
+import 'package:device_info_plus/device_info_plus.dart';
+import 'package:path_provider/path_provider.dart';
 import 'package:saf/saf.dart';
 
 FileExporter fileExporter() => AndroidFileExporter();
 
 class AndroidFileExporter implements FileExporter {
   @override
   Future exportFile(String fileName, String content) async {
-    final safInstance = Saf('/storage/emulated/0/Documents');
-    bool? isGranted = await safInstance.getDirectoryPermission(isDynamic: true);
-    if (isGranted != null && isGranted) {
-      // Perform some file operations
-      final file = File('/storage/emulated/0/Documents/$fileName');
-      await file
-          .writeAsString(content)
-          .then((value) => {Future.value('success')})
-          .catchError((error) {
-        Future.error('error');
-      });
-    } else {
-      return Future.error('denied');
+    // in API 30 and above, dir is Documents, in API 29 and below, dir is Downloads
+    try {
+      DeviceInfoPlugin deviceInfo = DeviceInfoPlugin();
+      AndroidDeviceInfo androidInfo = await deviceInfo.androidInfo;
+      var dir = '/storage/emulated/0/Documents';
+      if (androidInfo.version.sdkInt <= 30) {
+        final Directory? downloadsDir = await getDownloadsDirectory();
+        if (downloadsDir != null) {
+          dir = downloadsDir.path.toString();
+        } else {
+          // create a Downloads directory in app directory
+          final Directory appDocDir = await getApplicationDocumentsDirectory();
+          dir = '${appDocDir.path}/Downloads';
+          final Directory newDir = Directory(dir);
+          if (!newDir.existsSync()) {
+            newDir.createSync();
+          }
+        }
+      }
+      log(dir);
+      final safInstance = Saf(dir);
+      bool? isGranted =
+          await safInstance.getDirectoryPermission(isDynamic: true);
+      if (isGranted != null && isGranted) {
+        // Perform some file operations
+        final file = File('$dir/$fileName');
+        await file
+            .writeAsString(content)
+            .then((value) => {Future.value('success')})
+            .catchError((error) {
+          throw 'error';
+        });
+      } else {
+        throw 'denied';
+      }
+    } catch (e) {
+      return Future.error('error');
     }
   }
 }

pubspec.lock

@@ -185,6 +185,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.4"
+  device_info_plus:
+    dependency: "direct main"
+    description:
+      name: device_info_plus
+      sha256: "77f757b789ff68e4eaf9c56d1752309bd9f7ad557cb105b938a7f8eb89e59110"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.1.2"
+  device_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: device_info_plus_platform_interface
+      sha256: d3b01d5868b50ae571cd1dc6e502fc94d956b665756180f7b16ead09e836fd64
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   fake_async:
     dependency: transitive
     description:
@@ -858,6 +874,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.2.0"
+  win32_registry:
+    dependency: transitive
+    description:
+      name: win32_registry
+      sha256: "41fd8a189940d8696b1b810efb9abcf60827b6cbfab90b0c43e8439e3a39d85a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.2"
   xdg_directories:
     dependency: transitive
     description:

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 2.2.9+67
+version: 2.2.9+68
 
 environment:
   sdk: '>=3.1.3 <4.0.0'
@@ -51,6 +51,7 @@ dependencies:
   path_provider: ^2.1.2
   url_launcher: ^6.2.4
   saf: ^1.0.3+4
+  device_info_plus: ^9.1.2
 
 dev_dependencies:
   flutter_test: