Button Clicked in Xamarin Android to call Xamarin.Forms.Page? - xamarin

Question

I need to call a Xamarin.Forms Page through an Activity in Xamarin.Android.
I had used [Java.Interop.Export("btnOne1Click")] to call the Xamarin.Forms Page.
The code runs without errors if I use App.Current.MainPage = new RootPage(); But it does not navigate to that Page.
I don't want to call the [Java.Interop.Export("btnOne1Click")] on MainActivity.
[Activity(Label = "FailureActivity")]
public class FailureActivity : Activity
{
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
RequestWindowFeature(WindowFeatures.NoTitle);
SetContentView(Resource.Layout.Failure);
Button button = FindViewById<Button>(Resource.Id.txt_go_onjobs);
}
[Java.Interop.Export("btnOne1Click")]
public void btnOne1Click(Android.Views.View v)
{
try
{
Xamarin.Forms.Forms.Context.StartActivity(typeof(RootPage));
}
catch(Exception ex)
{ }
}
}

Answer 1

Xamarin forms runs on one activity, which is most like your main activity.
There are two sample projects that show you how to communicate between native and form parts of the code, which can be found here:
https://github.com/xamarin/xamarin-forms-samples/tree/master/Forms2Native
https://github.com/xamarin/xamarin-forms-samples/tree/master/Native2Forms
However, to answer your question, you would do something like the following:
button = FindViewById<Button> (Resource.Id.txt_go_onjobs);
button.Click += (sender, e) => {
// this is your Xamarin.Forms screen
StartActivity(typeof(FormsActivity));
};
Now, in your FormsActivity call this:
[Activity (Label = "FormsActivity")]
public class FormsActivity : Xamarin.Forms.Platform.Android.FormsApplicationActivity
{
protected override void OnCreate (Bundle bundle)
{
base.OnCreate (bundle);
Xamarin.Forms.Forms.Init (this, bundle);
LoadApplication (new App ());
}
}