Xamarin / MAUI

using System.ComponentModel;

using System.Runtime.CompilerServices;

namespace SICPA_Connexions.Services

{

    public class LoadingIndicatorService : INotifyPropertyChanged

    {

        private bool isBusy;

        private string message;

        private string title;

        public bool IsBusy

        {

            get => isBusy;

            set => SetProperty(ref isBusy, value);

        }

        public string Message

        {

            get { return message; }

            set 

            { 

                SetProperty(ref message, value);

                OnPropertyChanged(nameof(IsVisibleMessage));

            }

        }

        public string Title

        {

            get { return title; }

            set { SetProperty(ref title, value); }

        }

        public bool IsVisibleMessage => !string.IsNullOrEmpty(Message);

        #region INPC

        public event PropertyChangedEventHandler PropertyChanged;

        protected bool SetProperty<T>(ref T storage, T value, [CallerMemberName] string propertyname = null)

        {

            if (Equals(storage, value)) return false;

            storage = value;

            OnPropertyChanged(propertyname);

            return true;

        }

        protected void OnPropertyChanged(string propertyName)

        {

            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));

        }

        #endregion

    }

}