feat add lockscreen widget

app/ios/BatteryWidget-Info.plist

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleDisplayName</key>
+	<string>Omi Battery</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionPointIdentifier</key>
+		<string>com.apple.widgetkit-extension</string>
+	</dict>
+</dict>
+</plist>

app/ios/BatteryWidget/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,13 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

app/ios/BatteryWidget/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

app/ios/BatteryWidget/Assets.xcassets/omi-logo.imageset/Contents.json

@@ -0,0 +1,26 @@
+{
+  "images" : [
+    {
+      "filename" : "logo_transparent.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "logo_transparent.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "logo_transparent.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  },
+  "properties" : {
+    "template-rendering-intent" : "template"
+  }
+}

app/ios/BatteryWidget/BatteryWidget.entitlements

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>group.com.friend-app-with-wearable.ios12</string>
+	</array>
+</dict>
+</plist>

app/ios/BatteryWidget/BatteryWidget.swift

@@ -0,0 +1,215 @@
+import WidgetKit
+import SwiftUI
+
+// MARK: - Timeline Entry
+
+struct BatteryEntry: TimelineEntry {
+    let date: Date
+    let info: DeviceBatteryInfo
+}
+
+// MARK: - Timeline Provider
+
+struct BatteryTimelineProvider: TimelineProvider {
+    func placeholder(in context: Context) -> BatteryEntry {
+        BatteryEntry(
+            date: Date(),
+            info: DeviceBatteryInfo(
+                deviceName: "Omi",
+                batteryLevel: 85,
+                deviceType: "omi",
+                isConnected: true,
+                lastUpdated: Date(),
+                isMuted: false
+            )
+        )
+    }
+
+    func getSnapshot(in context: Context, completion: @escaping (BatteryEntry) -> Void) {
+        completion(BatteryEntry(date: Date(), info: DeviceBatteryInfo.fromSharedDefaults()))
+    }
+
+    func getTimeline(in context: Context, completion: @escaping (Timeline<BatteryEntry>) -> Void) {
+        let info = DeviceBatteryInfo.fromSharedDefaults()
+        let entry = BatteryEntry(date: Date(), info: info)
+        // 5-minute fallback refresh; the app pushes instant updates via
+        // WidgetCenter.shared.reloadAllTimelines on battery or mute state changes.
+        let nextUpdate = Calendar.current.date(byAdding: .minute, value: 5, to: Date())!
+        completion(Timeline(entries: [entry], policy: .after(nextUpdate)))
+    }
+}
+
+// MARK: - Widget Definition
+
+struct OmiBatteryWidget: Widget {
+    let kind: String = "OmiBatteryWidget"
+
+    var body: some WidgetConfiguration {
+        StaticConfiguration(kind: kind, provider: BatteryTimelineProvider()) { entry in
+            if #available(iOS 17.0, *) {
+                BatteryWidgetEntryView(entry: entry)
+                    .containerBackground(.fill.tertiary, for: .widget)
+            } else {
+                BatteryWidgetEntryView(entry: entry)
+            }
+        }
+        .configurationDisplayName("Omi Battery")
+        .description("Shows your Omi device battery level and mic state.")
+        .supportedFamilies([.accessoryRectangular, .accessoryInline])
+    }
+}
+
+// MARK: - Widget Entry View
+
+struct BatteryWidgetEntryView: View {
+    @Environment(\.widgetFamily) var family
+    var entry: BatteryEntry
+
+    var body: some View {
+        switch family {
+        case .accessoryRectangular:
+            AccessoryRectangularView(info: entry.info)
+        default:
+            AccessoryInlineView(info: entry.info)
+        }
+    }
+}
+
+// MARK: - Lock Screen: Rectangular
+
+struct AccessoryRectangularView: View {
+    let info: DeviceBatteryInfo
+
+    var body: some View {
+        HStack(spacing: 0) {
+            // Left — Omi logo
+            Image("omi-logo")
+                .resizable()
+                .renderingMode(.template)
+                .scaledToFit()
+                .frame(width: 36, height: 36)
+                .foregroundColor(.primary)
+
+            Spacer(minLength: 4)
+
+            if info.isConnected {
+                // Center — battery %
+                Group {
+                    if info.batteryLevel >= 0 {
+                        Text("\(info.batteryLevel)%")
+                    } else {
+                        Text("--%")
+                            .foregroundColor(.secondary)
+                    }
+                }
+                .font(.system(size: 22, weight: .bold, design: .rounded))
+                .lineLimit(1)
+                .minimumScaleFactor(0.6)
+
+                Spacer(minLength: 4)
+
+                // Right — mute state
+                Image(systemName: info.isMuted ? "mic.slash.fill" : "mic.fill")
+                    .font(.system(size: 22, weight: .medium))
+                    .foregroundColor(info.isMuted ? Color(red: 1.0, green: 0.23, blue: 0.19) : .primary)
+                    .frame(width: 36)
+            } else {
+                // Disconnected
+                Text("Connect\ndevice")
+                    .font(.system(size: 15, weight: .bold))
+                    .foregroundColor(.secondary)
+                    .multilineTextAlignment(.center)
+                    .frame(maxWidth: .infinity)
+            }
+        }
+        .padding(.horizontal, 10)
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+        .background(
+            RoundedRectangle(cornerRadius: 14, style: .continuous)
+                .fill(.white.opacity(0.25))
+        )
+    }
+}
+
+// MARK: - Lock Screen: Inline
+
+struct AccessoryInlineView: View {
+    let info: DeviceBatteryInfo
+
+    var body: some View {
+        if info.isConnected && info.batteryLevel >= 0 {
+            Label("\(displayName) \(info.batteryLevel)%", systemImage: deviceIcon)
+        } else {
+            Label("\(displayName) --", systemImage: deviceIcon)
+        }
+    }
+
+    private var displayName: String {
+        info.deviceName.isEmpty || info.deviceName == "Unknown" ? "Omi" : info.deviceName
+    }
+
+    private var deviceIcon: String {
+        switch info.deviceType.lowercased() {
+        case "applewatch": return "applewatch"
+        case "openglass", "frame": return "eyeglasses"
+        default: return "mic.fill"
+        }
+    }
+}
+
+// MARK: - Previews
+
+#if DEBUG
+struct OmiBatteryWidget_Previews: PreviewProvider {
+    static var previews: some View {
+        let connected = BatteryEntry(
+            date: Date(),
+            info: DeviceBatteryInfo(
+                deviceName: "Omi DevKit",
+                batteryLevel: 98,
+                deviceType: "omi",
+                isConnected: true,
+                lastUpdated: Date(),
+                isMuted: false
+            )
+        )
+        let muted = BatteryEntry(
+            date: Date(),
+            info: DeviceBatteryInfo(
+                deviceName: "Omi",
+                batteryLevel: 72,
+                deviceType: "omi",
+                isConnected: true,
+                lastUpdated: Date(),
+                isMuted: true
+            )
+        )
+        let disconnected = BatteryEntry(
+            date: Date(),
+            info: DeviceBatteryInfo(
+                deviceName: "Omi",
+                batteryLevel: -1,
+                deviceType: "omi",
+                isConnected: false,
+                lastUpdated: Date.distantPast,
+                isMuted: false
+            )
+        )
+
+        Group {
+            BatteryWidgetEntryView(entry: connected)
+                .previewContext(WidgetPreviewContext(family: .accessoryRectangular))
+                .previewDisplayName("Rectangular – Connected")
+            BatteryWidgetEntryView(entry: muted)
+                .previewContext(WidgetPreviewContext(family: .accessoryRectangular))
+                .previewDisplayName("Rectangular – Muted")
+            BatteryWidgetEntryView(entry: disconnected)
+                .previewContext(WidgetPreviewContext(family: .accessoryRectangular))
+                .previewDisplayName("Rectangular – Disconnected")
+            BatteryWidgetEntryView(entry: connected)
+                .previewContext(WidgetPreviewContext(family: .accessoryInline))
+                .previewDisplayName("Inline")
+        }
+    }
+}
+#endif

app/ios/BatteryWidget/BatteryWidgetBundle.swift

@@ -0,0 +1,9 @@
+import WidgetKit
+import SwiftUI
+
+@main
+struct BatteryWidgetBundle: WidgetBundle {
+    var body: some Widget {
+        OmiBatteryWidget()
+    }
+}

app/ios/BatteryWidget/SharedDefaults.swift

@@ -0,0 +1,43 @@
+import Foundation
+
+/// App Group identifier shared between the main app and the widget extension.
+let appGroupIdentifier = "group.com.friend-app-with-wearable.ios12"
+
+/// Keys used to store device battery data in the shared UserDefaults.
+enum BatteryWidgetKeys {
+    static let deviceName = "widget_device_name"
+    static let batteryLevel = "widget_battery_level"
+    static let deviceType = "widget_device_type"
+    static let isConnected = "widget_is_connected"
+    static let lastUpdated = "widget_last_updated"
+    static let isMuted = "widget_is_muted"
+}
+
+/// Model representing the device battery state shown in the widget.
+struct DeviceBatteryInfo {
+    let deviceName: String
+    let batteryLevel: Int
+    let deviceType: String
+    let isConnected: Bool
+    let lastUpdated: Date
+    let isMuted: Bool
+
+    /// Reads the latest device battery info from the shared App Group UserDefaults.
+    static func fromSharedDefaults() -> DeviceBatteryInfo {
+        let defaults = UserDefaults(suiteName: appGroupIdentifier)
+        let name = defaults?.string(forKey: BatteryWidgetKeys.deviceName) ?? "Omi"
+        let battery = defaults?.integer(forKey: BatteryWidgetKeys.batteryLevel) ?? -1
+        let type = defaults?.string(forKey: BatteryWidgetKeys.deviceType) ?? "omi"
+        let connected = defaults?.bool(forKey: BatteryWidgetKeys.isConnected) ?? false
+        let updated = defaults?.object(forKey: BatteryWidgetKeys.lastUpdated) as? Date ?? Date.distantPast
+        let muted = defaults?.bool(forKey: BatteryWidgetKeys.isMuted) ?? false
+        return DeviceBatteryInfo(
+            deviceName: name,
+            batteryLevel: battery,
+            deviceType: type,
+            isConnected: connected,
+            lastUpdated: updated,
+            isMuted: muted
+        )
+    }
+}

app/ios/Podfile.lock

@@ -241,9 +241,6 @@ PODS:
     - Flutter
   - pasteboard (0.0.1):
     - Flutter
-  - path_provider_foundation (0.0.1):
-    - Flutter
-    - FlutterMacOS
   - permission_handler_apple (9.3.0):
     - Flutter
   - PromisesObjC (2.4.0)
@@ -316,7 +313,6 @@ DEPENDENCIES:
   - opus_flutter_ios (from `.symlinks/plugins/opus_flutter_ios/ios`)
   - package_info_plus (from `.symlinks/plugins/package_info_plus/ios`)
   - pasteboard (from `.symlinks/plugins/pasteboard/ios`)
-  - path_provider_foundation (from `.symlinks/plugins/path_provider_foundation/darwin`)
   - permission_handler_apple (from `.symlinks/plugins/permission_handler_apple/ios`)
   - share_plus (from `.symlinks/plugins/share_plus/ios`)
   - shared_preferences_foundation (from `.symlinks/plugins/shared_preferences_foundation/darwin`)
@@ -440,8 +436,6 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/package_info_plus/ios"
   pasteboard:
     :path: ".symlinks/plugins/pasteboard/ios"
-  path_provider_foundation:
-    :path: ".symlinks/plugins/path_provider_foundation/darwin"
   permission_handler_apple:
     :path: ".symlinks/plugins/permission_handler_apple/ios"
   share_plus:
@@ -525,7 +519,6 @@ SPEC CHECKSUMS:
   opus_flutter_ios: f16ed3599997ced564ad44509e87003159a86def
   package_info_plus: af8e2ca6888548050f16fa2f1938db7b5a5df499
   pasteboard: 49088aeb6119d51f976a421db60d8e1ab079b63c
-  path_provider_foundation: bb55f6dbba17d0dccd6737fe6f7f34fbd0376880
   permission_handler_apple: 4ed2196e43d0651e8ff7ca3483a069d469701f2d
   PromisesObjC: f5707f49cb48b9636751c5b2e7d227e43fba9f47
   PromisesSwift: 9d77319bbe72ebf6d872900551f7eeba9bce2851