Windows phone 8.1 back button always navigate to main screen

Question

I have lots of pages in my app . When I click back button it does not navigate to previous page but it navigate to the lock screen where all apps are present . Should I have to write code for back button for navigation??

Answer 1

是的，您需要覆盖电话的OnBackKeyPress来处理后退按钮应导航到的位置。

Answer 2

AddHandler HardwareButtons.BackPressed, AddressOf HardwareButtons_BackPressed

Private Sub HardwareButtons_BackPressed(sender As Object, e As BackPressedEventArgs)
    e.Handled = True
    YourGoBackCode()
End Sub

And same in c#

HardwareButtons.BackPressed += HardwareButtons_BackPressed;

private void HardwareButtons_BackPressed(object sender, BackPressedEventArgs e)
{
   e.Handled = true;
   YourGoBackCode();
}