Windows phone 8.1后退按钮始终导航到主屏幕

Question

我的应用中有很多页面。当我单击后退按钮时，它不会导航到上一页，但会导航到所有应用程序都存在的锁定屏幕。我是否必须编写导航后退按钮的代码？

Answer 1

是的，您需要覆盖手机的OnBackKeyPress以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

同样在c＃

中

HardwareButtons.BackPressed += HardwareButtons_BackPressed;

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