How to load data in TabbedPage when a tab is clicked?

Question

I am using TabbedPage for navigation with tabs. All my Page classes have just an empty default constructor and I load my data in the OnAppearing<

Answer 1

Solution:

You can get the index of currentPage in method OnCurrentPageChanged And if the index equals 1(second page) , use the messagecenter to send message to the page.Refer the following code .

in Tabbed Page

protected override void OnCurrentPageChanged()
{
   base.OnCurrentPageChanged();

   int index = Children.IndexOf(CurrentPage);

   if (index == 1)
   {
      MessagingCenter.Send<Object>(this, "click_second_tab");
   }

   else if (index == 2)
   {
      MessagingCenter.Send<Object>(this, "click_third_tab");
   }


} 

in the second page .Move the code that load data from onAppearing to the constructor

public MyPage1()
{

  //...
  MessagingCenter.Subscribe<Object>(this, "click_second_tab", (obj) =>
  {
     //load your data here

      Console.WriteLine("11111");
  });

}