public bool GoBack()
{
if (backstack.Count == 0)
{
return(false);
}
if (backstack.Count == 1)
{
if (AdaptiveStates.CurrentState == NarrowState)
{
BindableMargin margin = new BindableMargin(DetailContentPresenter)
{
Top = 0 - LayoutRoot.ActualHeight
};
DoubleAnimationUsingKeyFrames animation = new DoubleAnimationUsingKeyFrames()
{
EnableDependentAnimation = true
};
EasingDoubleKeyFrame f1 = new EasingDoubleKeyFrame()
{
Value = 0 - LayoutRoot.ActualHeight,
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromSeconds(0.1))
};
animation.KeyFrames.Add(f1);
EasingDoubleKeyFrame f2 = new EasingDoubleKeyFrame()
{
EasingFunction = new PowerEase()
{
EasingMode = EasingMode.EaseInOut, Power = 4
},
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromSeconds(0.4)),
Value = 0
};
animation.KeyFrames.Add(f2);
Storyboard.SetTarget(animation, margin);
Storyboard.SetTargetProperty(animation, "Top");
Storyboard storyboard = new Storyboard();
storyboard.Children.Add(animation);
storyboard.Completed += delegate
{
backstack.Clear();
DetailContentPresenter.Content = null;
isBlank = true;
margin.Top = 0;
};
storyboard.Begin();
}
else
{
backstack.Clear();
DetailContentPresenter.Navigate(typeof(BlankPage));
isBlank = true;
}
MasterListView.SelectedItem = null;
return(true);
}
else if (backstack.Count > 1)
{
MasterListView.SelectedIndex = backstack[backstack.Count - 1].selectedindex;
backstack.RemoveAt(backstack.Count - 1);
DetailContentPresenter.Navigate(backstack[backstack.Count - 1].sender, backstack[backstack.Count - 1].e);
return(true);
}
return(false);
}
public void MasterListView_ItemClick(Type sender, object e)
{
_lastSelectedItem = e;
DetailContentPresenter.Navigate(sender, e);
backitem tmpitem = new Pages.MasterDetailControl.backitem()
{
sender = sender,
e = e,
selectedindex = MasterListView.SelectedIndex
};
backstack.Add(tmpitem);
isBlank = false;
if (AdaptiveStates.CurrentState == NarrowState)
{
// Use "drill in" transition for navigating from master list to detail view
//Frame.Navigate(typeof(DetailPage.WorkDetailPage), clickedItem, new DrillInNavigationTransitionInfo());
Grid.SetColumn(DetailContentPresenter, 0);
Grid.SetRow(DetailContentPresenter, 1);
DetailContentPresenter.BorderThickness = new Windows.UI.Xaml.Thickness(0, 0, 0, 0);
BindableMargin margin = new BindableMargin(DetailContentPresenter)
{
Top = 0
};
DoubleAnimationUsingKeyFrames animation = new DoubleAnimationUsingKeyFrames()
{
EnableDependentAnimation = true
};
EasingDoubleKeyFrame f1 = new EasingDoubleKeyFrame()
{
Value = 0,
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromSeconds(0.2))
};
animation.KeyFrames.Add(f1);
EasingDoubleKeyFrame f2 = new EasingDoubleKeyFrame()
{
EasingFunction = new PowerEase()
{
EasingMode = EasingMode.EaseInOut, Power = 4
},
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromSeconds(0.6)),
Value = 0 - LayoutRoot.ActualHeight
};
animation.KeyFrames.Add(f2);
Storyboard.SetTarget(animation, margin);
Storyboard.SetTargetProperty(animation, "Top");
Storyboard storyboard = new Storyboard();
storyboard.Children.Add(animation);
storyboard.Completed += delegate
{
margin.Top = 0 - LayoutRoot.ActualHeight;
};
storyboard.Begin();
}
else
{
Grid.SetColumn(DetailContentPresenter, 1);
Grid.SetRow(DetailContentPresenter, 0);
DetailContentPresenter.BorderThickness = new Windows.UI.Xaml.Thickness(1, 0, 0, 0);
// Play a refresh animation when the user switches detail items.
EnableContentTransitions();
}
}
