private void DeviceGestureService_GoBackRequested(object sender, DeviceGestureEventArgs e)
{
// FIXME: VisualStateGroupの状態を取得する良い方法が見つからないため、ViewModelで値を取得している
var view = Windows.UI.ViewManagement.UIViewSettings.GetForCurrentView();
if (view.UserInteractionMode == Windows.UI.ViewManagement.UserInteractionMode.Mouse)
{
// PCもしくはContinuumの場合、アプリを終了する
e.Handled = false;
e.Cancel = false;
}
else
{
// 電話で、アイテムが選択されている画面の場合、リスト画面へと戻る
if (this.IsItemsListSelected)
{
this.SelectedIndex = -1;
e.Handled = true;
e.Cancel = true;
}
else
{
e.Handled = false;
e.Cancel = false;
}
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnGoForwardRequested(object sender, DeviceGestureEventArgs e)
{
if (NavigationService.CanGoForward())
{
NavigationService.GoForward();
e.Handled = true;
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnHardwareButtonsBackPressed(object sender, BackPressedEventArgs e)
{
DeviceGestureEventArgs args = new DeviceGestureEventArgs(false, true);
RaiseCancelableEvent <DeviceGestureEventArgs>(GoBackRequested, this, args);
e.Handled = args.Handled;
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnSystemNavigationManagerBackRequested(object sender, BackRequestedEventArgs e)
{
DeviceGestureEventArgs args = new DeviceGestureEventArgs();
RaiseCancelableEvent <DeviceGestureEventArgs>(GoBackRequested, this, args);
e.Handled = args.Handled;
}
protected virtual void OnGoBackRequested(object sender, DeviceGestureEventArgs e)
{
if (!e.Handled)
{
if (NavigationService.CanGoBack())
{
NavigationService.GoBack();
e.Handled = true;
}
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnGoBackRequested(object sender, DeviceGestureEventArgs e)
{
if (NavigationService.CanGoBack())
{
NavigationService.GoBack();
e.Handled = true;
}
else if (DeviceGestureService.IsHardwareBackButtonPresent && e.IsHardwareButton)
{
Exit();
}
}
private void DeviceGestureServiceOnGoBackRequested(object sender, DeviceGestureEventArgs e)
{
var appShell = (AppShell)Window.Current.Content;
var contentFrame = (Frame)appShell.GetContentFrame();
var page = (SessionStateAwarePage)contentFrame.Content;
var revertable = page?.DataContext as IRevertState;
if (revertable == null || !revertable.CanRevertState())
{
return;
}
e.Handled = true;
e.Cancel = true;
revertable.RevertState();
}
private void DeviceGestureService_GoBackRequested(object sender, DeviceGestureEventArgs e)
{
Debug.WriteLine(nameof(this.DeviceGestureService_GoBackRequested));
e.Handled = true;
e.Cancel = true;
}
private void DeviceGestureService_CameraButtonPressed(object sender, DeviceGestureEventArgs e)
{
Debug.WriteLine(nameof(this.DeviceGestureService_CameraButtonPressed));
}
