예제 및 활용 사례
이 플러그인의 설치 단계와 전체 마크다운 가이드가 포함된 설정 프롬프트를 복사하세요.
이 가이드는 다음을 활용한 일반적인 watch 앱 패턴의 실용적인 예제를 제공합니다: @capgo/capacitor-watch. Phone 측 TypeScript는 다음 두 경우 모두에서 작동합니다: iOS 및 Android; 아래 watch UI 샘플은 SwiftUI 를 사용합니다 (Apple Watch). Wear OS에서는 Wear OS 설정 가이드의 Data Layer 경로를 사용하여 동일한 페이로드를 미러링하세요.
예제 1: 건강 및 피트니스 트래커
“예제 1: 건강 및 피트니스 트래커” 제목 섹션워치와 폰 간의 운동 데이터를 동기화합니다.
import SwiftUIimport CapgoWatchSDK
struct WorkoutView: View { @ObservedObject var connector = WatchConnector.shared @State private var heartRate: Double = 0 @State private var calories: Double = 0 @State private var isTracking = false
var body: some View { VStack(spacing: 12) { // Heart Rate Display HStack { Image(systemName: "heart.fill") .foregroundColor(.red) Text("\(Int(heartRate)) BPM") .font(.title2) }
// Calories HStack { Image(systemName: "flame.fill") .foregroundColor(.orange) Text("\(Int(calories)) cal") }
// Start/Stop Button Button(isTracking ? "Stop" : "Start") { toggleTracking() } .buttonStyle(.borderedProminent) .tint(isTracking ? .red : .green) } .onReceive(Timer.publish(every: 1, on: .main, in: .common).autoconnect()) { _ in if isTracking { updateMetrics() } } }
private func toggleTracking() { isTracking.toggle() if isTracking { // Notify phone that workout started connector.sendMessage([ "event": "workoutStarted", "timestamp": Date().timeIntervalSince1970 ]) } else { // Send final summary to phone do { try connector.updateApplicationContext([ "workoutComplete": true, "totalCalories": calories, "avgHeartRate": heartRate, "endTime": Date().timeIntervalSince1970 ]) } catch { print("Failed to update context: \(error)") } } }
private func updateMetrics() { // Simulate heart rate (in real app, use HealthKit) heartRate = Double.random(in: 120...160) calories += Double.random(in: 0.1...0.3)
// Send real-time updates if phone is reachable if connector.isReachable { connector.sendMessage([ "heartRate": heartRate, "calories": calories, "timestamp": Date().timeIntervalSince1970 ]) } }}import { CapgoWatch } from '@capgo/capacitor-watch';
class WorkoutTracker { private heartRateData: number[] = []; private totalCalories = 0;
async initialize() { // Listen for real-time workout updates await CapgoWatch.addListener('messageReceived', (event) => { const { heartRate, calories, timestamp } = event.message;
if (heartRate) { this.heartRateData.push(heartRate); this.updateUI(heartRate, calories); }
if (event.message.event === 'workoutStarted') { this.onWorkoutStarted(timestamp); } });
// Listen for workout completion via context await CapgoWatch.addListener('applicationContextReceived', (event) => { if (event.context.workoutComplete) { this.onWorkoutComplete(event.context); } }); }
private onWorkoutStarted(timestamp: number) { console.log('Workout started at:', new Date(timestamp * 1000)); this.heartRateData = []; this.totalCalories = 0; }
private onWorkoutComplete(data: any) { const avgHeartRate = data.avgHeartRate; const totalCalories = data.totalCalories;
// Save to your backend this.saveWorkout({ avgHeartRate, totalCalories, endTime: data.endTime, heartRateHistory: this.heartRateData }); }
private updateUI(heartRate: number, calories: number) { // Update your app's UI document.getElementById('heart-rate')!.textContent = `${Math.round(heartRate)} BPM`; document.getElementById('calories')!.textContent = `${Math.round(calories)} cal`; }
private async saveWorkout(data: any) { // Save to your backend console.log('Saving workout:', data); }}
const tracker = new WorkoutTracker();tracker.initialize();예제 2: 스마트 홈 리모컨
“예제 2: 스마트 홈 리모컨” 제목의 섹션워치에서 스마트 홈 기기를 제어하세요.
import SwiftUIimport CapgoWatchSDK
struct SmartHomeView: View { @ObservedObject var connector = WatchConnector.shared @State private var devices: [SmartDevice] = [] @State private var isLoading = false
var body: some View { NavigationView { Group { if isLoading { ProgressView("Loading...") } else if devices.isEmpty { Text("No devices") .foregroundColor(.secondary) } else { List(devices) { device in DeviceRow(device: device, onToggle: { toggleDevice(device) }) } } } .navigationTitle("Home") .toolbar { Button(action: refreshDevices) { Image(systemName: "arrow.clockwise") } } } .onAppear { refreshDevices() } .onChange(of: connector.lastMessage) { message in handleMessage(message) } }
private func refreshDevices() { guard connector.isReachable else { // Load from cached context loadFromContext() return }
isLoading = true connector.sendMessage(["action": "getDevices"]) { reply in DispatchQueue.main.async { isLoading = false if let deviceList = reply["devices"] as? [[String: Any]] { devices = deviceList.compactMap { SmartDevice(from: $0) } } } } }
private func toggleDevice(_ device: SmartDevice) { connector.sendMessage([ "action": "toggleDevice", "deviceId": device.id, "newState": !device.isOn ]) { reply in DispatchQueue.main.async { if reply["success"] as? Bool == true { // Update local state if let index = devices.firstIndex(where: { $0.id == device.id }) { devices[index].isOn.toggle() } } } } }
private func loadFromContext() { if let deviceList = connector.applicationContext["devices"] as? [[String: Any]] { devices = deviceList.compactMap { SmartDevice(from: $0) } } }
private func handleMessage(_ message: [String: Any]) { // Handle push updates from phone if let update = message["deviceUpdate"] as? [String: Any], let deviceId = update["id"] as? String, let isOn = update["isOn"] as? Bool { if let index = devices.firstIndex(where: { $0.id == deviceId }) { devices[index].isOn = isOn } } }}
struct SmartDevice: Identifiable { let id: String let name: String let type: String var isOn: Bool
init?(from dict: [String: Any]) { guard let id = dict["id"] as? String, let name = dict["name"] as? String, let type = dict["type"] as? String, let isOn = dict["isOn"] as? Bool else { return nil } self.id = id self.name = name self.type = type self.isOn = isOn }}
struct DeviceRow: View { let device: SmartDevice let onToggle: () -> Void
var body: some View { HStack { Image(systemName: iconName) .foregroundColor(device.isOn ? .yellow : .gray) Text(device.name) Spacer() Toggle("", isOn: .constant(device.isOn)) .labelsHidden() .onTapGesture { onToggle() } } }
var iconName: String { switch device.type { case "light": return device.isOn ? "lightbulb.fill" : "lightbulb" case "thermostat": return "thermometer" case "lock": return device.isOn ? "lock.fill" : "lock.open" default: return "power" } }}import { CapgoWatch } from '@capgo/capacitor-watch';
interface SmartDevice { id: string; name: string; type: string; isOn: boolean;}
class SmartHomeController { private devices: SmartDevice[] = [];
async initialize() { // Handle requests from watch await CapgoWatch.addListener('messageReceivedWithReply', async (event) => { const { action, deviceId, newState } = event.message;
let response: any = { success: false };
switch (action) { case 'getDevices': response = { devices: this.devices }; break;
case 'toggleDevice': const success = await this.toggleDevice(deviceId, newState); response = { success }; break; }
await CapgoWatch.replyToMessage({ callbackId: event.callbackId, data: response }); });
// Load initial devices await this.loadDevices();
// Keep watch updated with device states await this.syncDevicesToWatch(); }
private async loadDevices() { // Load from your smart home API this.devices = [ { id: '1', name: 'Living Room', type: 'light', isOn: true }, { id: '2', name: 'Bedroom', type: 'light', isOn: false }, { id: '3', name: 'Thermostat', type: 'thermostat', isOn: true }, { id: '4', name: 'Front Door', type: 'lock', isOn: true } ]; }
private async toggleDevice(deviceId: string, newState: boolean): Promise<boolean> { try { // Call your smart home API const device = this.devices.find(d => d.id === deviceId); if (device) { device.isOn = newState;
// Push update to watch const info = await CapgoWatch.getInfo(); if (info.isReachable) { await CapgoWatch.sendMessage({ data: { deviceUpdate: { id: deviceId, isOn: newState } } }); } return true; } return false; } catch (error) { console.error('Failed to toggle device:', error); return false; } }
private async syncDevicesToWatch() { // Update application context for offline access await CapgoWatch.updateApplicationContext({ context: { devices: this.devices } }); }
// Call this when devices change on the phone async onDeviceStateChanged(deviceId: string, isOn: boolean) { const device = this.devices.find(d => d.id === deviceId); if (device) { device.isOn = isOn; await this.syncDevicesToWatch(); } }}
const controller = new SmartHomeController();controller.initialize();예제 3: 알림 센터
“예제 3: 알림 센터” 제목의 섹션워치로 커스텀 알림을 전송하세요.
import { CapgoWatch } from '@capgo/capacitor-watch';
class NotificationService { async sendNotification(title: string, body: string, data?: any) { const info = await CapgoWatch.getInfo();
if (info.isReachable) { // Send immediately if watch is reachable await CapgoWatch.sendMessage({ data: { type: 'notification', title, body, data, timestamp: Date.now() } }); } else { // Queue for later delivery await CapgoWatch.transferUserInfo({ userInfo: { type: 'notification', title, body, data, timestamp: Date.now() } }); } }
async sendUrgentAlert(message: string) { // Use sendMessage for urgent alerts (requires watch to be reachable) const info = await CapgoWatch.getInfo();
if (!info.isReachable) { console.warn('Watch not reachable for urgent alert'); return false; }
await CapgoWatch.sendMessage({ data: { type: 'urgentAlert', message, haptic: 'warning', timestamp: Date.now() } });
return true; }}
// Usageconst notifications = new NotificationService();
// Regular notification (queued if watch unavailable)await notifications.sendNotification( 'Order Update', 'Your order has shipped!', { orderId: '12345' });
// Urgent alert (requires watch to be active)const sent = await notifications.sendUrgentAlert('Security alert: New login detected');import SwiftUIimport WatchKitimport CapgoWatchSDK
struct NotificationView: View { @ObservedObject var connector = WatchConnector.shared @State private var notifications: [WatchNotification] = [] @State private var showAlert = false @State private var alertMessage = ""
var body: some View { NavigationView { List(notifications) { notification in NotificationRow(notification: notification) } .navigationTitle("Notifications") } .onReceive(connector.$lastMessage) { message in handleMessage(message) } .alert("Alert", isPresented: $showAlert) { Button("OK") { } } message: { Text(alertMessage) } }
private func handleMessage(_ message: [String: Any]) { guard let type = message["type"] as? String else { return }
switch type { case "notification": let notification = WatchNotification( id: UUID().uuidString, title: message["title"] as? String ?? "", body: message["body"] as? String ?? "", timestamp: Date(timeIntervalSince1970: (message["timestamp"] as? Double ?? 0) / 1000) ) notifications.insert(notification, at: 0)
// Play haptic WKInterfaceDevice.current().play(.notification)
case "urgentAlert": alertMessage = message["message"] as? String ?? "Alert" showAlert = true
// Play strong haptic for urgent alerts if let hapticType = message["haptic"] as? String { switch hapticType { case "warning": WKInterfaceDevice.current().play(.notification) DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) { WKInterfaceDevice.current().play(.notification) } default: WKInterfaceDevice.current().play(.notification) } }
default: break } }}
struct WatchNotification: Identifiable { let id: String let title: String let body: String let timestamp: Date}
struct NotificationRow: View { let notification: WatchNotification
var body: some View { VStack(alignment: .leading, spacing: 4) { Text(notification.title) .font(.headline) Text(notification.body) .font(.caption) .foregroundColor(.secondary) Text(notification.timestamp, style: .relative) .font(.caption2) .foregroundColor(.secondary) } .padding(.vertical, 4) }}예제 4: 데이터 동기화 서비스
“예제 4: 데이터 동기화 서비스” 섹션폰과 워치 간의 데이터를 동기화 상태로 유지합니다.
import { CapgoWatch } from '@capgo/capacitor-watch';
class DataSyncService { private syncQueue: any[] = []; private isSyncing = false;
async initialize() { // Listen for sync requests from watch await CapgoWatch.addListener('messageReceivedWithReply', async (event) => { if (event.message.action === 'sync') { const data = await this.getDataForSync(event.message.lastSyncTime); await CapgoWatch.replyToMessage({ callbackId: event.callbackId, data: { items: data, syncTime: Date.now() } }); } });
// Listen for data from watch await CapgoWatch.addListener('userInfoReceived', (event) => { this.handleWatchData(event.userInfo); });
// Monitor connectivity for sync opportunities await CapgoWatch.addListener('reachabilityChanged', (event) => { if (event.isReachable && this.syncQueue.length > 0) { this.processSyncQueue(); } }); }
// Push important data to watch (guaranteed delivery) async pushToWatch(data: any) { await CapgoWatch.transferUserInfo({ userInfo: { type: 'dataUpdate', data, timestamp: Date.now() } }); }
// Update shared state (latest value only) async updateSharedState(state: any) { await CapgoWatch.updateApplicationContext({ context: { ...state, lastUpdated: Date.now() } }); }
// Queue data for sync when watch becomes available queueForSync(data: any) { this.syncQueue.push(data); this.attemptSync(); }
private async attemptSync() { const info = await CapgoWatch.getInfo(); if (info.isReachable) { await this.processSyncQueue(); } }
private async processSyncQueue() { if (this.isSyncing || this.syncQueue.length === 0) return;
this.isSyncing = true;
while (this.syncQueue.length > 0) { const item = this.syncQueue.shift(); await CapgoWatch.transferUserInfo({ userInfo: item }); }
this.isSyncing = false; }
private async getDataForSync(lastSyncTime: number): Promise<any[]> { // Return data modified since lastSyncTime // This would query your database/API return []; }
private handleWatchData(data: any) { console.log('Received from watch:', data); // Process and save data from watch }}모범 사례
“권장 사항” 섹션1. 적절한 전송 방식 선택하기
“1. 적절한 전송 방식 선택하기” 섹션| 메서드 | 사용 사례 | 전송 방식 |
|---|---|---|
sendMessage | 대화형, 실시간성 | 즉시 실행 (연결 불가 시 실패) |
updateApplicationContext | 현재 앱 상태 | 최신 값만 전달 |
transferUserInfo | 중요 데이터 | 큐에 저장, 전달 보장 |
2. 오프라인 상황 대응
“2. 오프라인 상황 대응” 섹션async function smartSend(data: any, important: boolean) { const info = await CapgoWatch.getInfo();
if (info.isReachable) { // Send immediately await CapgoWatch.sendMessage({ data }); } else if (important) { // Queue for later await CapgoWatch.transferUserInfo({ userInfo: data }); } else { // Update context (will be available when watch opens app) await CapgoWatch.updateApplicationContext({ context: data }); }}3. 데이터 크기 최소화
3. 데이터 크기 최소화// Bad - sending large objectsconnector.sendMessage(["user": fullUserObject])
// Good - send only what's neededconnector.sendMessage([ "userId": user.id, "name": user.displayName, "avatarUrl": user.avatarUrl])4. 햅틱 적절히 사용하기
4. 햅틱 적절히 사용하기import WatchKit
// Success feedbackWKInterfaceDevice.current().play(.success)
// Failure feedbackWKInterfaceDevice.current().play(.failure)
// Navigation feedbackWKInterfaceDevice.current().play(.click)
// NotificationWKInterfaceDevice.current().play(.notification)5. Watch에서 캐싱하기
5. Watch에서 캐싱하기class DataCache { private let defaults = UserDefaults.standard
func save(_ data: [String: Any], forKey key: String) { if let encoded = try? JSONSerialization.data(withJSONObject: data) { defaults.set(encoded, forKey: key) } }
func load(forKey key: String) -> [String: Any]? { guard let data = defaults.data(forKey: key), let dict = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else { return nil } return dict }}다음 단계
“다음 단계” 섹션- watchOS 앱 만들기 - Apple Watch 설정
- Wear OS 앱 만들기 - Wear OS 모듈 설정
- API 레퍼런스 - 완전한 API 문서
- GitHub 저장소 - code 소스 및 이슈 확인
Examples & Use Cases에서 계속하기
“Examples & Use Cases에서 계속하기” 섹션사용 중이라면 예제 및 활용 사례 네이티브 플러그인 작업을 계획하려면, 이를 다음 항목과 연결하세요: @capgo/capacitor-watch 사용하기 @capgo/capacitor-watch를 사용하여 Native Build 기능을 구현하는 방법 Capgo 플러그인 디렉토리 Capgo Plugin Directory의 제품 워크플로우에 맞춰, Capgo의 Capacitor 플러그인 Capgo의 Capacitor 플러그인 구현 상세 내용에 대해서는, 플러그인 추가 또는 업데이트 플러그인 추가 또는 업데이트 구현 상세 내용에 대해서는, Ionic Enterprise 플러그인 대안 Ionic Enterprise 플러그인 대안의 제품 워크플로우에 대해서는.