Set StatusBar color and StatusBarStyle for iOS Android and UWP from Page

Xamarin.Forms.ControlGallery.iOS/Info.plist

@@ -36,7 +36,7 @@
 		<string>[email protected]</string>
 	</array>
 	<key>UIViewControllerBasedStatusBarAppearance</key>
-	<true/>
+	<false/>
 	<key>NSLocationWhenInUseUsageDescription</key>
 	<string>We are using your location</string>
 	<key>NSLocationAlwaysUsageDescription</key>

Xamarin.Forms.Controls/CoreGallery.cs

@@ -371,6 +371,7 @@ public override string ToString()
 				new GalleryPageFactory(() => new SwitchCoreGalleryPage(), "Switch Gallery"),
 				new GalleryPageFactory(() => new SwipeViewCoreGalleryPage(), "SwipeView Core Gallery"),
 				new GalleryPageFactory(() => new SwipeViewGallery(), "SwipeView Gallery"),
+				new GalleryPageFactory(() => new StatusBarGallery(), "Page StatusBar Gallery"),
 				new GalleryPageFactory(() => new TableViewCoreGalleryPage(), "TableView Gallery"),
 				new GalleryPageFactory(() => new TimePickerCoreGalleryPage(), "TimePicker Gallery"),
 				new GalleryPageFactory(() => new VisualGallery(), "Visual Gallery"),
@@ -379,7 +380,7 @@ public override string ToString()
 				new GalleryPageFactory(() => new DynamicViewGallery(), "Dynamic ViewGallery"),
 				new GalleryPageFactory(() => new AppThemeGallery(), "AppTheme Gallery"),
 				//pages
- 				new GalleryPageFactory(() => new RootContentPage ("Content"), "RootPages Gallery"),
+				new GalleryPageFactory(() => new RootContentPage ("Content"), "RootPages Gallery"),
 				new GalleryPageFactory(() => new MasterDetailPageTabletPage(), "MasterDetailPage Tablet Page"),
 				// legacy galleries
 				new GalleryPageFactory(() => new AbsoluteLayoutGallery(), "AbsoluteLayout Gallery - Legacy"),

Xamarin.Forms.Controls/GalleryPages/StatusBarGallery.xaml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:d="http://xamarin.com/schemas/2014/forms/design"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             x:Class="Xamarin.Forms.Controls.GalleryPages.StatusBarGallery">
+    <StackLayout>
+        <Label Text="Slide to change StatusBarColor color"/>
+
+        <Slider Minimum="0" Maximum="255" Value="0" ValueChanged="Slider_OnValueChanged" MaximumTrackColor="Red" ThumbColor="Red"
+                MinimumTrackColor="Red"  Margin="20,10" x:Name="RedSlider"/>
+
+        <Slider Minimum="0" Maximum="255" Value="0" ValueChanged="Slider_OnValueChanged" MaximumTrackColor="Green" ThumbColor="Green"
+                MinimumTrackColor="Green"  Margin="20,10" x:Name="GreenSlider"/>
+
+        <Slider Minimum="0" Maximum="255" Value="0" ValueChanged="Slider_OnValueChanged" MaximumTrackColor="Blue" ThumbColor="Blue"
+                MinimumTrackColor="Blue"  Margin="20,10" x:Name="BlueSlider"/>
+
+        <Label Text="Swith to change StatusBarStyle"/>
+
+        <Switch Toggled="Switch_OnToggled" HorizontalOptions="Start"/>
+        <ScrollView>
+            <StackLayout>
+                <Button Text="NavigationPage" Clicked="NavigationPage_Navigate"/>
+                <Button Text="NavigationPage Pages" Clicked="NavigationPage_Pages_Navigate"/>
+                <Button Text="TabbedPage" Clicked="TabbedPage_Navigate"/>
+                <Button Text="TabbedPage Pages" Clicked="TabbedPage_Pages_Navigate"/>
+                <Button Text="CarouselPage" Clicked="CarouselPage_Navigate"/>
+                <Button Text="CarouselPage Pages" Clicked="CarouselPage_Pages_Navigate"/>
+                <Button Text="ContentPage" Clicked="ContentPage_Navigate"/>
+                <Button Text="Shell" Clicked="Shell_Navigate"/>
+            </StackLayout>
+        </ScrollView>
+    </StackLayout>
+</ContentPage>

Xamarin.Forms.Controls/GalleryPages/StatusBarGallery.xaml.cs

@@ -0,0 +1,133 @@
+using System;
+using System.Collections.Generic;
+using Xamarin.Forms.Xaml;
+
+namespace Xamarin.Forms.Controls.GalleryPages
+{
+	[XamlCompilation(XamlCompilationOptions.Compile)]
+	public partial class StatusBarGallery : ContentPage
+	{
+		public StatusBarGallery()
+		{
+			InitializeComponent();
+		}
+
+		void Slider_OnValueChanged(object sender, ValueChangedEventArgs e)
+		{
+			StatusBarColor = Color.FromRgb(Convert.ToInt32(RedSlider.Value), Convert.ToInt32(GreenSlider.Value), Convert.ToInt32(BlueSlider.Value));
+		}
+
+		void Switch_OnToggled(object sender, ToggledEventArgs e)
+		{
+			StatusBarStyle = e.Value ? StatusBarStyle.DarkContent : StatusBarStyle.LightContent;
+		}
+
+		void NavigationPage_Navigate(object sender, EventArgs e)
+		{
+			var page = new NavigationPage(new StatusBarGallery());
+			page.StatusBarColor = Color.DarkBlue;
+			page.StatusBarStyle = StatusBarStyle.DarkContent;
+			Application.Current.MainPage = page;
+		}
+
+		void NavigationPage_Pages_Navigate(object sender, EventArgs e)
+		{
+			var page = new NavigationPage(new StatusBarGallery()
+			{
+				StatusBarColor = Color.Red,
+				StatusBarStyle = StatusBarStyle.LightContent
+			});
+			Application.Current.MainPage = page;
+			page.PushAsync(new StatusBarGallery()
+			{
+				StatusBarColor = Color.Cyan, 
+				StatusBarStyle = StatusBarStyle.DarkContent
+			});
+		}
+
+		void ContentPage_Navigate(object sender, EventArgs e)
+		{
+			var page = new StatusBarGallery()
+			{
+				StatusBarColor = Color.DarkTurquoise,
+				StatusBarStyle = StatusBarStyle.DarkContent
+			};
+			Application.Current.MainPage = page;
+		}
+
+		void TabbedPage_Navigate(object sender, EventArgs e)
+		{
+			var page = new TabbedPage();
+			page.Children.Add(new StatusBarGallery { Title = "Page1" });
+			page.Children.Add(new StatusBarGallery { Title = "Page2" });
+			page.StatusBarColor = Color.DarkCyan;
+			page.StatusBarStyle = StatusBarStyle.DarkContent;
+			Application.Current.MainPage = page;
+		}
+
+		void TabbedPage_Pages_Navigate(object sender, EventArgs e)
+		{
+			var page = new TabbedPage();
+			page.Children.Add(new StatusBarGallery()
+			{
+				StatusBarColor = Color.Red,
+				StatusBarStyle = StatusBarStyle.LightContent,
+				Title = "Page1"
+			});
+			page.Children.Add(new StatusBarGallery()
+			{
+				StatusBarColor = Color.Cyan,
+				StatusBarStyle = StatusBarStyle.DarkContent,
+				Title = "Page1"
+			});
+			Application.Current.MainPage = page;
+		}
+
+		void CarouselPage_Navigate(object sender, EventArgs e)
+		{
+			var page = new CarouselPage();
+			page.Children.Add(new StatusBarGallery());
+			page.Children.Add(new StatusBarGallery());
+			page.StatusBarColor = Color.DarkMagenta;
+			page.StatusBarStyle = StatusBarStyle.DarkContent;
+			Application.Current.MainPage = page;
+		}
+
+		void CarouselPage_Pages_Navigate(object sender, EventArgs e)
+		{
+			var page = new CarouselPage();
+			page.Children.Add(new StatusBarGallery()
+			{
+				StatusBarColor = Color.Red,
+				StatusBarStyle = StatusBarStyle.LightContent
+			});
+			page.Children.Add(new StatusBarGallery()
+			{
+				StatusBarColor = Color.Cyan,
+				StatusBarStyle = StatusBarStyle.DarkContent
+			});
+			Application.Current.MainPage = page;
+		}
+
+		void Shell_Navigate(object sender, EventArgs e)
+		{
+			var shell = new Shell();
+			shell.Items.Add(new TabBar()
+			{
+				Items = { new Tab
+				{
+					Items = { new ShellContent()
+					{
+						Content = new StatusBarGallery()
+					}}
+				}}
+			});
+			shell.StatusBarColor = Color.DarkGoldenrod;
+			shell.StatusBarStyle = StatusBarStyle.DarkContent;
+
+			Application.Current.MainPage = shell;
+		}
+
+
+	}
+}

Xamarin.Forms.Core.UnitTests/PageTests.cs

@@ -436,6 +436,7 @@ public void SendAppearing ()
 			((IPageController)page).SendAppearing ();
 
 			Assert.True (sent);
+			Assert.True(page.HasAppeared);
 		}
 
 		[Test]
@@ -445,12 +446,14 @@ public void SendDisappearing ()
 
 			((IPageController)page).SendAppearing ();
 
+			Assert.True(page.HasAppeared);
 			bool sent = false;
 			page.Disappearing += (sender, args) => sent = true;
 
 			((IPageController)page).SendDisappearing ();
 
 			Assert.True (sent);
+			Assert.False(page.HasAppeared);
 		}
 
 		[Test]

Xamarin.Forms.Core/MultiPage.cs

@@ -357,5 +357,6 @@ void UpdateCurrentPage()
 			else if (SelectedItem is T)
 				CurrentPage = (T)SelectedItem;
 		}
+
 	}
 }

Xamarin.Forms.Core/NavigationPage.cs

@@ -39,6 +39,7 @@ public class NavigationPage : Page, IPageContainer<Page>, IBarElement, INavigati
 		public static readonly BindableProperty TitleViewProperty = BindableProperty.CreateAttached("TitleView", typeof(View), typeof(NavigationPage), null, propertyChanging: TitleViewPropertyChanging);
 
 		static readonly BindablePropertyKey CurrentPagePropertyKey = BindableProperty.CreateReadOnly("CurrentPage", typeof(Page), typeof(NavigationPage), null);
+
 		public static readonly BindableProperty CurrentPageProperty = CurrentPagePropertyKey.BindableProperty;
 
 		static readonly BindablePropertyKey RootPagePropertyKey = BindableProperty.CreateReadOnly(nameof(RootPage), typeof(Page), typeof(NavigationPage), null);
@@ -545,5 +546,6 @@ protected override void OnRemovePage(Page page)
 		{
 			return _platformConfigurationRegistry.Value.On<T>();
 		}
+
 	}
 }