Add SmsSenderExtensions and add constructor to the SmsMessage class.

framework/src/Volo.Abp.Sms/Volo/Abp/Sms/SmsMessage.cs

@@ -1,15 +1,22 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
+using System.Collections.Generic;
+using JetBrains.Annotations;
 
 namespace Volo.Abp.Sms
 {
     public class SmsMessage
     {
-        public string PhoneNumber { get; set; }
+        public string PhoneNumber { get; }
 
-        public string Text { get; set; }
+        public string Text { get; }
 
-        public IDictionary<string, object> Properties { get; set; }
+        public IDictionary<string, object> Properties { get; }
+
+        public SmsMessage([NotNull] string phoneNumber, [NotNull] string text)
+        {
+            PhoneNumber = Check.NotNullOrWhiteSpace(phoneNumber, nameof(phoneNumber));
+            Text = Check.NotNullOrWhiteSpace(text, nameof(text));
+
+            Properties = new Dictionary<string, object>();
+        }
     }
 }

framework/src/Volo.Abp.Sms/Volo/Abp/Sms/SmsSenderExtensions.cs

@@ -0,0 +1,14 @@
+using JetBrains.Annotations;
+using System.Threading.Tasks;
+
+namespace Volo.Abp.Sms
+{
+    public static class SmsSenderExtensions
+    {
+        public static Task SendAsync([NotNull] this ISmsSender smsSender, [NotNull] string phoneNumber, [NotNull] string text)
+        {
+            Check.NotNull(smsSender, nameof(smsSender));
+            return smsSender.SendAsync(new SmsMessage(phoneNumber, text));
+        }
+    }
+}