TEst cloud

gistfile1.txt

UIBUtton btn = new UIButton(new RectangleF(10, 210, 300, 40));
errorMessagesTextField.AccessibilityLabel = "error_button";
errorMessagesTextField.Text = "error";

<Button
    android:text="Action 1"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:id="@+id/error_button"
    android:layout_weight="1"
    android:layout_marginLeft="5dp" />


AppResult[] results = _app.Marked("error_button");

this works, but only if you are using AXML files

In Xamarin forms  a user does this:

var button = new Button { StyleId="error_button" };

Now Xamarin forms creates a Android button or view

var buttonAndroid = new View();
buttonAndroid.SetId("error_button");