Forms Android Toast

 1 forms定义接口
 2 
 3 using System;
 4 
 5 namespace
 6 {
 7     public interface ISystemToast
 8     {
 9         void DisplayToast(string message);
10     }
11 }
12 
13 
14 平台实现
15 
16 using System;
17 
18 using Android.App;
19 using Android.OS;
20 using Android.Views;
21 using Android.Widget;
22 using Android.Content;
23 
24 using Xamarin.Forms;
25 
26 using.TDroid;
27 
28 [assembly:Dependency(typeof(SystemToast))]
29 namespace.TDroid
30 {
31     public class SystemToast : Java.Lang.Object,ISystemToast
32     {
33         public void DisplayToast(string message)
34         {
35             Toast.MakeText (Android.App.Application.Context,message,ToastLength.Short).Show ();
36         }
37     }
38 }