tizen-watchface-dashboard-2/ClockViewModel.cs

using System;
using System.ComponentModel;
using System.Runtime.CompilerServices;

namespace TizenWatchfaceApp1
{
    public class ClockViewModel : INotifyPropertyChanged
    {
        protected DateTime time = DateTime.MinValue;
        protected int heartRate = 0;
        protected int battery = 0;

        public DateTime Time
        {
            get => time;
            set
            {
                if (time == value) return;

                time = value;

                OnPropertyChanged();
            }
        }

        public int HeartRate
        {
            get => heartRate;
            set
            {
                if (heartRate == value) return;

                heartRate = value;

                OnPropertyChanged();
            }
        }

        public int Battery
        {
            get => battery;
            set
            {
                if (battery == value) return;

                battery = value;

                OnPropertyChanged();
            }
        }

        public event PropertyChangedEventHandler PropertyChanged;

        protected void OnPropertyChanged([CallerMemberName] string propertyName = "")
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

    }
}