CODEWITHSUNDEEP
xamarin.formsxamarin.androidbroadcastreceiver
Johan
Johan

Reputation: 780

Application.Current.Properties in BroadcastReceiver in Xamarin.Forms application

I save some preferences in Application.Current.Properties for my Xamarin.Forms app and have a BroadcastReceiver that needs those preferences. The problem is that Xamarin.Forms is not initialized in the BroadcastReceiver so I need a way to access those variables in native Xamain.Android. Is that possible?

Upvotes: 0

Views: 248

Answers (2)

Johan
Johan

Reputation: 780

I found the solution myself. I used the Xamarin.Forms source (found here) to write a function that reads the values from the same file as they are written to in the forms app. Works like a charm.

Upvotes: 0

Leo Zhu
Leo Zhu

Reputation: 15011

I need a way to access those variables in native Xamain.Android

you could use DependencyService ,this functionality enables Xamarin.Forms apps to do anything that a native app can do.

here is a sample for using Android's Toast to show message in shared code:

1.create a interface in shared code:

public interface IToast
 {
    void LongAlert(string message);//the parameter could pass to the native platform
    void ShortAlert(string message);
 }

2.Android Implementation:

[assembly: Dependency(typeof(ToastAndroid))]
namespace Demo.Droid
{
  class ToastAndroid : IToast
   {
     public void LongAlert(string message)
      {
        Toast.MakeText(Android.App.Application.Context, message, ToastLength.Long).Show();
      }            

     public void ShortAlert(string message)
      {           
        Toast.MakeText(Android.App.Application.Context, message, ToastLength.Short).Show();
       }
   }
}

3.call in shared code:

DependencyService.Get<IToast>().ShortAlert("short toast);
DependencyService.Get<IToast>().LongAlert("long toast);

DependencyService

Upvotes: 0

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