Access ListView in xaml from different .cs files?

Question

I am trying to access a ListView object in a XAML file from a non-bindable .cs file.

I have a XAML file called "TabPage1" where I have a grid layout and that is where my listview is located. https://gyazo.com/1a4d8635ffcb5acdd291bc8f92caae88

However, I am receiving shared data from share option in android through an "activity" .cs file called "RecieveDataFromApp, this is where I handle the incoming data. (shown in the picture above on the left side)

From this .cs file (RecieveDataFromApp) I want to pass in incoming data to this ListView that is located in a xaml file which is not bound to my "RecieveDataFromApp.cs" file.

https://gyazo.com/80fff3df19e19e5dbb1c5bc8e6f54995 if you check at line 35, this is where I want to access the ListView that is in TabPage1.xaml.

Answer 1

You need to use DependencyService to have values from Android project into shared project

Create Interface in shared project let call it IGetSmth

 public interface IGetSmth
{
    string smth { get; }

}

In you android project create class named GetSmth

[assembly: Xamarin.Forms.Dependency(typeof(GetSmth))]
public class Getsmth : IGetSmth
{
    public string smth
    {
        get { return ReceiveDataFromApp.SomeTextInMainActivity; }
    }
}

Finaly in you ReceiveDataFromApp activity create SomeTextInMainActivity property
public static string SomeTextInMainActivity { get; set; } public static string SomeTextInMainActivity { get; set; } and don't forget to give it a value in you code and you can get it in shared project string SomeTextFromAndroidProject = DependencyService.Get<IGetSmth>().smth; You can find sample here