/// <summary>
/// Updates <see cref="_internalFlyoutLayoutBehavior"/> according to <see cref="FlyoutLayoutBehavior"/> set by the user and current screen orientation.
/// </summary>
void UpdateFlyoutLayoutBehavior()
{
var behavior = (_flyoutLayoutBehavior == FlyoutLayoutBehavior.Default) ? s_defaultFlyoutLayoutBehavior : _flyoutLayoutBehavior;
// Screen orientation affects those 2 behaviors
if (behavior == FlyoutLayoutBehavior.SplitOnLandscape || behavior == FlyoutLayoutBehavior.SplitOnPortrait)
{
var orientation = DeviceDisplay.MainDisplayInfo.Orientation;
if ((orientation.IsLandscape() && behavior == FlyoutLayoutBehavior.SplitOnLandscape) || (orientation.IsPortrait() && behavior == FlyoutLayoutBehavior.SplitOnPortrait))
{
behavior = FlyoutLayoutBehavior.Split;
}
else
{
behavior = FlyoutLayoutBehavior.Popover;
}
}
if (behavior != _internalFlyoutLayoutBehavior)
{
_internalFlyoutLayoutBehavior = behavior;
ConfigureLayout();
}
}
public virtual bool ShouldShowToolbarButton()
{
if (Device.Idiom == TargetIdiom.Phone)
{
return(true);
}
FlyoutLayoutBehavior behavior = FlyoutLayoutBehavior;
var orientation = DeviceDisplay.MainDisplayInfo.Orientation;
bool isSplitOnLandscape = (behavior == FlyoutLayoutBehavior.SplitOnLandscape || behavior == FlyoutLayoutBehavior.Default) && orientation.IsLandscape();
bool isSplitOnPortrait = behavior == FlyoutLayoutBehavior.SplitOnPortrait && orientation.IsPortrait();
return(behavior != FlyoutLayoutBehavior.Split && !isSplitOnLandscape && !isSplitOnPortrait);
}
private FlyoutLayoutBehaviorType GetFlyoutLayoutBehavior(FlyoutLayoutBehavior flyoutBehavior)
{
switch (flyoutBehavior)
{
case FlyoutLayoutBehavior.Split:
case FlyoutLayoutBehavior.SplitOnLandscape:
case FlyoutLayoutBehavior.SplitOnPortrait:
return(FlyoutLayoutBehaviorType.Split);
case FlyoutLayoutBehavior.Popover:
return(FlyoutLayoutBehaviorType.Popover);
case FlyoutLayoutBehavior.Default:
return(FlyoutLayoutBehaviorType.Default);
default:
throw new ArgumentOutOfRangeException(nameof(flyoutBehavior));
}
}
public InnerDelegate(FlyoutLayoutBehavior flyoutPresentedDefaultState)
{
_flyoutPresentedDefaultState = flyoutPresentedDefaultState;
}
public Issue1461Page(FlyoutLayoutBehavior state, bool?initState)
{
var btn = new Button {
Text = "hide me"
};
btn.Clicked += bnToggle_Clicked;
Flyout = new ContentPage
{
Title = string.Format("Flyout sample for {0}", state),
IconImageSource = "bank.png",
Padding = Device.RuntimePlatform == Device.iOS ? new Thickness(5, 60, 5, 5) : new Thickness(5),
Content =
new StackLayout
{
Children =
{
new Label {
Text = "Flyout Label",
AutomationId = "Master_Label",
BackgroundColor = Color.Gray
},
btn
},
BackgroundColor = Color.WhiteSmoke
},
BackgroundColor = Color.Gray
};
if (initState.HasValue)
{
_showButton = initState.Value;
}
var lbl = new Label
{
HorizontalOptions = LayoutOptions.End,
BindingContext = this
};
lbl.SetBinding(Label.TextProperty, "IsPresented");
var bnToggle = new Button
{
Text = "Toggle IsPresented",
};
var bnGoBack = new Button
{
Text = "Go Back",
};
bnGoBack.Clicked += bnGoBack_Clicked;
bnToggle.Clicked += bnToggle_Clicked;
Detail = new NavigationPage(new ContentPage
{
Title = "Detail Title",
Content = new StackLayout {
Spacing = 10, Children = { lbl, bnToggle, bnGoBack }
}
});
FlyoutLayoutBehavior = state;
}
public static FlyoutPage FlyoutLayoutBehavior(this FlyoutPage page, FlyoutLayoutBehavior behavior)
{
page.FlyoutLayoutBehavior = behavior;
return(page);
}
