feat(device_info_plus): add storage information

packages/device_info_plus/device_info_plus/android/src/main/kotlin/dev/fluttercommunity/plus/device_info/MethodCallHandlerImpl.kt

@@ -10,6 +10,8 @@ import io.flutter.plugin.common.MethodChannel
 import io.flutter.plugin.common.MethodChannel.MethodCallHandler
 import kotlin.collections.HashMap
 import android.provider.Settings
+import android.os.StatFs
+import android.os.Environment
 
 /**
  * The implementation of [MethodChannel.MethodCallHandler] for the plugin. Responsible for
@@ -57,6 +59,10 @@ internal class MethodCallHandlerImpl(
             build["isPhysicalDevice"] = !isEmulator
             build["systemFeatures"] = getSystemFeatures()
 
+            val statFs = StatFs(Environment.getDataDirectory().getPath())
+            build["freeDiskSpace"] = statFs.getFreeBytes()
+            build["totalDiskSpace"] = statFs.getTotalBytes()
+
             val version: MutableMap<String, Any> = HashMap()
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                 version["baseOS"] = Build.VERSION.BASE_OS

packages/device_info_plus/device_info_plus/ios/device_info_plus/Sources/device_info_plus/FPPDeviceInfoPlusPlugin.m

@@ -29,6 +29,15 @@ - (void)handleMethodCall:(FlutterMethodCall *)call
     if (@available(iOS 14.0, *)) {
       isiOSAppOnMac = [NSNumber numberWithBool:[info isiOSAppOnMac]];
     }
+    NSError *error = nil;
+    NSDictionary *fsAttributes = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error];
+    NSNumber *freeSize = [NSNumber numberWithInt:-1];
+    NSNumber *totalSize = [NSNumber numberWithInt:-1];
+    if(fsAttributes) {
+        freeSize = fsAttributes[NSFileSystemFreeSize];
+        totalSize = fsAttributes[NSFileSystemSize];
+    }
+
     NSString *machine;
     NSString *deviceName;
     if ([self isDevicePhysical]) {
@@ -47,6 +56,8 @@ - (void)handleMethodCall:(FlutterMethodCall *)call
       @"modelName" : deviceName,
       @"identifierForVendor" : [[device identifierForVendor] UUIDString]
           ?: [NSNull null],
+      @"freeDiskSize": freeSize,
+      @"totalDiskSize": totalSize,
       @"isPhysicalDevice" : isPhysicalNumber,
       @"isiOSAppOnMac" : isiOSAppOnMac,
       @"utsname" : @{

packages/device_info_plus/device_info_plus/lib/src/model/android_device_info.dart

@@ -31,6 +31,8 @@ class AndroidDeviceInfo extends BaseDeviceInfo {
     required this.tags,
     required this.type,
     required this.isPhysicalDevice,
+    required this.freeDiskSpace,
+    required this.totalDiskSpace,
     required List<String> systemFeatures,
     required this.serialNumber,
     required this.isLowRamDevice,
@@ -121,6 +123,16 @@ class AndroidDeviceInfo extends BaseDeviceInfo {
   /// `false` if the application is running in an emulator, `true` otherwise.
   final bool isPhysicalDevice;
 
+  /// Available disk space in bytes
+  ///
+  /// https://developer.android.com/reference/android/os/StatFs#getFreeBytes()
+  final int freeDiskSpace;
+
+  /// Total disk space in bytes
+  ///
+  /// https://developer.android.com/reference/android/os/StatFs#getTotalBytes()
+  final int totalDiskSpace;
+
   /// Describes what features are available on the current device.
   ///
   /// This can be used to check if the device has, for example, a front-facing
@@ -171,6 +183,8 @@ class AndroidDeviceInfo extends BaseDeviceInfo {
       tags: map['tags'],
       type: map['type'],
       isPhysicalDevice: map['isPhysicalDevice'],
+      freeDiskSpace: map['freeDiskSpace'],
+      totalDiskSpace: map['totalDiskSpace'],
       systemFeatures: _fromList(map['systemFeatures'] ?? []),
       serialNumber: map['serialNumber'],
       isLowRamDevice: map['isLowRamDevice'],
@@ -200,6 +214,8 @@ class AndroidDeviceInfo extends BaseDeviceInfo {
     required String tags,
     required String type,
     required bool isPhysicalDevice,
+    required int freeDiskSpace,
+    required int totalDiskSpace,
     required List<String> systemFeatures,
     required String serialNumber,
     required bool isLowRamDevice,
@@ -233,6 +249,8 @@ class AndroidDeviceInfo extends BaseDeviceInfo {
       'tags': tags,
       'type': type,
       'isPhysicalDevice': isPhysicalDevice,
+      'freeDiskSpace': freeDiskSpace,
+      'totalDiskSpace': totalDiskSpace,
       'systemFeatures': systemFeatures,
       'serialNumber': serialNumber,
       'isLowRamDevice': isLowRamDevice,
@@ -260,6 +278,8 @@ class AndroidDeviceInfo extends BaseDeviceInfo {
       tags: tags,
       type: type,
       isPhysicalDevice: isPhysicalDevice,
+      freeDiskSpace: freeDiskSpace,
+      totalDiskSpace: totalDiskSpace,
       systemFeatures: _fromList(systemFeatures),
       serialNumber: serialNumber,
       isLowRamDevice: isLowRamDevice,

packages/device_info_plus/device_info_plus/lib/src/model/ios_device_info.dart

@@ -18,6 +18,8 @@ class IosDeviceInfo extends BaseDeviceInfo {
     required this.model,
     required this.modelName,
     required this.localizedModel,
+    required this.freeDiskSize,
+    required this.totalDiskSize,
     this.identifierForVendor,
     required this.isPhysicalDevice,
     required this.isiOSAppOnMac,
@@ -66,6 +68,12 @@ class IosDeviceInfo extends BaseDeviceInfo {
   /// Operating system information derived from `sys/utsname.h`.
   final IosUtsname utsname;
 
+  /// Free disk size in bytes
+  final int freeDiskSize;
+
+  /// Total disk size in bytes
+  final int totalDiskSize;
+
   /// Deserializes from the map message received from [_kChannel].
   static IosDeviceInfo fromMap(Map<String, dynamic> map) {
     return IosDeviceInfo._(
@@ -77,6 +85,8 @@ class IosDeviceInfo extends BaseDeviceInfo {
       modelName: map['modelName'],
       localizedModel: map['localizedModel'],
       identifierForVendor: map['identifierForVendor'],
+      freeDiskSize: map['freeDiskSize'],
+      totalDiskSize: map['totalDiskSize'],
       isPhysicalDevice: map['isPhysicalDevice'],
       isiOSAppOnMac: map['isiOSAppOnMac'],
       utsname:
@@ -93,6 +103,8 @@ class IosDeviceInfo extends BaseDeviceInfo {
     required String model,
     required String modelName,
     required String localizedModel,
+    required int freeDiskSize,
+    required int totalDiskSize,
     String? identifierForVendor,
     required bool isPhysicalDevice,
     required bool isiOSAppOnMac,
@@ -106,6 +118,8 @@ class IosDeviceInfo extends BaseDeviceInfo {
       'modelName': modelName,
       'localizedModel': localizedModel,
       'identifierForVendor': identifierForVendor,
+      'freeDiskSize': freeDiskSize,
+      'totalDiskSize': totalDiskSize,
       'isPhysicalDevice': isPhysicalDevice,
       'isiOSAppOnMac': isiOSAppOnMac,
       'utsname': {
@@ -125,6 +139,8 @@ class IosDeviceInfo extends BaseDeviceInfo {
       modelName: modelName,
       localizedModel: localizedModel,
       identifierForVendor: identifierForVendor,
+      freeDiskSize: freeDiskSize,
+      totalDiskSize: totalDiskSize,
       isPhysicalDevice: isPhysicalDevice,
       isiOSAppOnMac: isiOSAppOnMac,
       utsname: utsname,

packages/device_info_plus/device_info_plus/test/model/android_device_info_fake.dart

@@ -29,6 +29,8 @@ const _fakeAndroidDeviceInfo = <String, dynamic>{
   'display': 'display',
   'hardware': 'hardware',
   'isPhysicalDevice': true,
+  'freeDiskSpace': 70729949184,
+  'totalDiskSpace': 113281839104,
   'bootloader': 'bootloader',
   'fingerprint': 'fingerprint',
   'manufacturer': 'manufacturer',

packages/device_info_plus/device_info_plus/test/model/android_device_info_test.dart

@@ -25,6 +25,8 @@ void main() {
       expect(androidDeviceInfo.hardware, 'hardware');
       expect(androidDeviceInfo.bootloader, 'bootloader');
       expect(androidDeviceInfo.isPhysicalDevice, isTrue);
+      expect(androidDeviceInfo.freeDiskSpace, 70729949184);
+      expect(androidDeviceInfo.totalDiskSpace, 113281839104);
       expect(androidDeviceInfo.fingerprint, 'fingerprint');
       expect(androidDeviceInfo.manufacturer, 'manufacturer');
       expect(androidDeviceInfo.supportedAbis, _fakeSupportedAbis);

packages/device_info_plus/device_info_plus/test/model/ios_device_info_test.dart

@@ -25,6 +25,8 @@ void main() {
         'systemVersion': 'systemVersion',
         'localizedModel': 'localizedModel',
         'identifierForVendor': 'identifierForVendor',
+        'freeDiskSize': 4096,
+        'totalDiskSize': 8192,
       };
 
       iosDeviceInfo = IosDeviceInfo.fromMap(iosDeviceInfoMap);
@@ -39,6 +41,8 @@ void main() {
       expect(iosDeviceInfo.systemName, 'systemName');
       expect(iosDeviceInfo.systemVersion, 'systemVersion');
       expect(iosDeviceInfo.localizedModel, 'localizedModel');
+      expect(iosDeviceInfo.freeDiskSize, 4096);
+      expect(iosDeviceInfo.totalDiskSize, 8192);
       expect(iosDeviceInfo.utsname.release, 'release');
       expect(iosDeviceInfo.utsname.version, 'version');
       expect(iosDeviceInfo.utsname.machine, 'machine');