Set application status bar colors - xamarin.forms

Question

I wrote a service with implementations per platform, to change the color of the StatusBar for my application.
Currently, each ContentPage will have to set its own color, in xaml:
<ContentPage xmlns:helpers="clr-namespace:MyApp.Helpers"
helpers:StatusBarHelper.StatusBarColor="{StaticResource MyColor}">
Where the helper calls the service with the specified color.
Otherwise, the color will remain from the previous page that set it.
What I want is that the StatusBar will receive the same color as the page's background.
Is there an easier way to achieve this?

Answer 1

You could check the following solution
in Forms
public interface IStatusBarStyleManager
{
void SetColoredStatusBar(string hexColor);
}
Setup the Status bar color with this line
DependencyService.Get<IStatusBarStyleManager>().SetColoredStatusBar("#2196F3");
in Android
[assembly: Xamarin.Forms.Dependency(typeof(StatusBarStyleManager))]
namespace ShaXam.Droid.DependencyServices
{
public class StatusBarStyleManager : IStatusBarStyleManager
{
public void SetColoredStatusBar(string hexColor)
{
if (Build.VERSION.SdkInt >= BuildVersionCodes.M)
{
Device.BeginInvokeOnMainThread(() =>
{
var currentWindow = GetCurrentWindow();
currentWindow.DecorView.SystemUiVisibility = 0;
currentWindow.SetStatusBarColor(Android.Graphics.Color.ParseColor(hexColor);
});
}
}
public void SetWhiteStatusBar()
{
if (Build.VERSION.SdkInt >= BuildVersionCodes.M)
{
Device.BeginInvokeOnMainThread(() =>
{
var currentWindow = GetCurrentWindow();
currentWindow.DecorView.SystemUiVisibility = (StatusBarVisibility)SystemUiFlags.LightStatusBar;
currentWindow.SetStatusBarColor(Android.Graphics.Color.White);
});
}
}
Window GetCurrentWindow()
{
var window = CrossCurrentActivity.Current.Activity.Window;
// clear FLAG_TRANSLUCENT_STATUS flag:
window.ClearFlags(WindowManagerFlags.TranslucentStatus);
// add FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS flag to the window
window.AddFlags(WindowManagerFlags.DrawsSystemBarBackgrounds);
return window;
}
}
}
in iOS
[assembly: Dependency(typeof(StatusBarStyleManager))]
namespace ShaXam.iOS.DependencyServices
{
public class StatusBarStyleManager : IStatusBarStyleManager
{
public void SetColoredStatusBar(string hexColor)
{
Device.BeginInvokeOnMainThread(() =>
{
if (UIDevice.CurrentDevice.CheckSystemVersion(13, 0))
{
UIView statusBar = new UIView(UIApplication.SharedApplication.KeyWindow.WindowScene.StatusBarManager.StatusBarFrame);
statusBar.BackgroundColor = Color.FromHex(hexColor).ToUIColor();
UIApplication.SharedApplication.KeyWindow.AddSubview(statusBar);
}
else
{
UIView statusBar = UIApplication.SharedApplication.ValueForKey(new NSString("statusBar")) as UIView;
if (statusBar.RespondsToSelector(new ObjCRuntime.Selector("setBackgroundColor:")))
{
statusBar.BackgroundColor = Color.FromHex(hexColor).ToUIColor();
}
}
UIApplication.SharedApplication.SetStatusBarStyle(UIStatusBarStyle.LightContent, false);
GetCurrentViewController().SetNeedsStatusBarAppearanceUpdate();
});
}
public void SetWhiteStatusBar()
{
Device.BeginInvokeOnMainThread(() =>
{
if (UIDevice.CurrentDevice.CheckSystemVersion(13, 0))
{
UIView statusBar = new UIView(UIApplication.SharedApplication.KeyWindow.WindowScene.StatusBarManager.StatusBarFrame);
statusBar.BackgroundColor = UIColor.White;
UIApplication.SharedApplication.KeyWindow.AddSubview(statusBar);
}
else
{
UIView statusBar = UIApplication.SharedApplication.ValueForKey(new NSString("statusBar")) as UIView;
if (statusBar.RespondsToSelector(new ObjCRuntime.Selector("setBackgroundColor:")))
{
statusBar.BackgroundColor = UIColor.White;
}
}
UIApplication.SharedApplication.SetStatusBarStyle(UIStatusBarStyle.DarkContent, false);
GetCurrentViewController().SetNeedsStatusBarAppearanceUpdate();
});
}
UIViewController GetCurrentViewController()
{
var window = UIApplication.SharedApplication.KeyWindow;
var vc = window.RootViewController;
while (vc.PresentedViewController != null)
vc = vc.PresentedViewController;
return vc;
}
}
}