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Ejemplos y casos de uso

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Esta guía ofrece ejemplos prácticos de patrones comunes para apps de watch usando @capgo/capacitor-watch. El TypeScript del teléfono funciona tanto para iOS y Android; los siguientes ejemplos de UI del reloj usan SwiftUI (Apple Watch). Replica los mismos payloads en Wear OS con las rutas del Data Layer de la guía de configuración de Wear OS.

Sincroniza datos de entrenamiento entre el reloj y el teléfono.

import SwiftUI
import 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
])
}
}
}

Controla dispositivos inteligentes desde tu watch.

import SwiftUI
import 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"
}
}
}

Envía notificaciones personalizadas al watch.

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;
}
}
// Usage
const 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');

Mantén los datos sincronizados entre el teléfono y el reloj.

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
}
}
MétodoCaso de usoEntrega
sendMessageInteractivo, sensible al tiempoInmediato (falla si no hay conexión)
updateApplicationContextEstado actual de la appSolo el último valor
transferUserInfoDatos importantesEn cola, garantizado
async 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 });
}
}
// Bad - sending large objects
connector.sendMessage(["user": fullUserObject])
// Good - send only what's needed
connector.sendMessage([
"userId": user.id,
"name": user.displayName,
"avatarUrl": user.avatarUrl
])
import WatchKit
// Success feedback
WKInterfaceDevice.current().play(.success)
// Failure feedback
WKInterfaceDevice.current().play(.failure)
// Navigation feedback
WKInterfaceDevice.current().play(.click)
// Notification
WKInterfaceDevice.current().play(.notification)
class 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
}
}

Si estás usando Ejemplos y Casos de Uso para planificar el trabajo con plugins nativos, conéctalo con Usando @capgo/capacitor-watch para la capacidad nativa en Uso de @capgo/capacitor-watch, Directorio de plugins de Capgo para el flujo de trabajo del producto en Capgo Plugin Directory, Plugins de Capacitor por Capgo para el detalle de implementación en los Plugins de Capacitor por Capgo, Añadir o actualizar plugins para el detalle de implementación en Agregar o actualizar plugins, y Alternativas a plugins de Ionic Enterprise para el flujo de trabajo del producto en Alternativas a plugins de Ionic Enterprise.