events - How to send OnActivityResult To a specific page in xamarin forms -

i using custom button renderer google sign in in xamarin forms page working fine signin resultin mainactivity want send data mainactivity , appdelegate particular page in xamarin forms.

protected override void onactivityresult(int requestcode, result resultcode, intent data)         {             base.onactivityresult(requestcode, resultcode, data);              if (requestcode == 9001)             {                 utilities.configuration.updateconfigvalue(utilities.constants.loggedinflag,string.empty);                 googlesigninresult result = android.gms.auth.api.auth.googlesigninapi.getsigninresultfromintent(data);                  if (result.issuccess)                 {                      googlesigninaccount acct = result.signinaccount;                     var token = acct.idtoken;                     //i wan send 'accnt' page in xamarin forms                  }                 else                 {                     //signin failure send response page in xamarin forms                 }             }         } 

xamarin.forms runs in 1 activity on android. if url request comes out in different activity, have switch mainactivity before can use normal xf navigation.

i when user opens file associated app.

[activity(label = "launchfileactivity")] public class launchfileactivity : activity {     protected override void oncreate(bundle bundle)     {         base.oncreate(bundle);          if (intent.data != null)         {             var uri = intent.data;             if (uri != null)             {                 intent = new intent(this, typeof(mainactivity));                 i.addflags(activityflags.reordertofront);                 i.putextra("filename", uri.path);                 this.startactivity(i);             }         }         this.finishactivity(0);     } } 

and in mainactivity:

protected override void onnewintent(intent intent) {     base.onnewintent(intent);     intent = intent; }  protected override void onpostresume() {     base.onpostresume();     if (intent.extras != null)     {         string filename = intent.extras.getstring("filename");         if (!string.isnullorempty(filename))         {             // filename         }         intent.removeextra("filename");     } }