How to save status bar background color in local settings(Windows Phone 8.1)

Question

I have given the user the freedom to change background colour and save it in local settings. But I am confused on how to save the status bar colour settings because I want to give the user the freedom to choose from 4-5 colours where background of status bar
can be changed.
public static void SaveStatusBarColor()
// get status bar color
var statusBar = StatusBar.GetForCurrentView();
var color = statusBar.BackgroundColor;
// convert color to hex string
var hexCode = color.HasValue ? color.Value.ToString() : "";
// store color in local settings
ApplicationData.Current.LocalSettings.Values["StatusBarColor"] = hexCode;
public static void LoadStatusBarColor()
// get color hex string from local settings
var hexCode = ApplicationData.Current.LocalSettings.Values["StatusBarColor"] as string;
if (string.IsNullOrEmpty(hexCode))
return;
// convert hexcode to color
var color = new Color();
color.A = byte.Parse(hexCode.Substring(1, 2), NumberStyles.AllowHexSpecifier);
color.R = byte.Parse(hexCode.Substring(3, 2), NumberStyles.AllowHexSpecifier);
color.G = byte.Parse(hexCode.Substring(5, 2), NumberStyles.AllowHexSpecifier);
color.B = byte.Parse(hexCode.Substring(7, 2), NumberStyles.AllowHexSpecifier);
// set the status bar color
var statusBar = StatusBar.GetForCurrentView(); // Exception Line
statusBar.BackgroundColor = color;
}This is what was suggested to me. Initially the app runs and saves the settings.But when the app is closed and restarted again it crashes.

Answer 1

Hi shriyansh,
Where did you call the method SaveStatusBarColor() and LoadStatusBarColor()?
I have called your SaveStatusBarColor() in the OnNavigatedFrom method and called the LoadStatusBarColor() in the OnNavigatedTo method, it worked very well in my side.
So I can not reproduce your issue.
Here are my code and result, please try to check it:
public class test
public Color colors { get; set; }
public sealed partial class MainPage : Page
List<test> testdemo = new List<test>();
public MainPage()
this.InitializeComponent();
testdemo.Add(new test() { colors = Colors.Red });
testdemo.Add(new test() { colors = Colors.Green});
testdemo.Add(new test() { colors = Colors.Gray});
testdemo.Add(new test() { colors = Colors.Blue });
this.NavigationCacheMode = NavigationCacheMode.Required;
public static void SaveStatusBarColor()
// get status bar color
var statusBar = StatusBar.GetForCurrentView();
var color = statusBar.BackgroundColor;
// convert color to hex string
var hexCode = color.HasValue ? color.Value.ToString() : "";
// store color in local settings
ApplicationData.Current.LocalSettings.Values["StatusBarColor"] = hexCode;
public static void LoadStatusBarColor()
//get color hex string from local settings
var hexCode = ApplicationData.Current.LocalSettings.Values["StatusBarColor"] as string;
if (string.IsNullOrEmpty(hexCode))
return;
// convert hexcode to color
var color = new Color();
color.A = byte.Parse(hexCode.Substring(1, 2), NumberStyles.AllowHexSpecifier);
color.R = byte.Parse(hexCode.Substring(3, 2), NumberStyles.AllowHexSpecifier);
color.G = byte.Parse(hexCode.Substring(5, 2), NumberStyles.AllowHexSpecifier);
color.B = byte.Parse(hexCode.Substring(7, 2), NumberStyles.AllowHexSpecifier);
var statusBar = StatusBar.GetForCurrentView();
statusBar.BackgroundColor = color;
statusBar.BackgroundOpacity = 1;
protected override void OnNavigatedTo(NavigationEventArgs e)
LoadStatusBarColor();
protected override void OnNavigatedFrom(NavigationEventArgs e)
SaveStatusBarColor();
private void ChangeColorButton_Click(object sender, RoutedEventArgs e)
var statusBar = StatusBar.GetForCurrentView();
statusBar.BackgroundColor = testdemo[Convert.ToInt32(Mytextbox.Text)].colors;
statusBar.BackgroundOpacity = 1;
The result:
Best Regards,
Amy Peng
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