windows-system-userprofile.md

---

uid: Uno.Features.WSUserProfile

Wallpaper and Lock Screen

Tip

This article covers Uno-specific information for the Windows.System.UserProfile namespace. For a full description of the feature and instructions on using it, see Windows.System.UserProfile Namespace.

• The Windows.System.UserProfile.UserProfilePersonalizationSettings class provides functionality for setting the lock screen and wallpaper images.

The functionality of this class is available only on Android. On other platforms, the IsSupported() method always returns false.

To be able to set wallpaper and lock screen image, add the following permission to the Android project head:

[assembly: UsesPermission("android.permission.SET_WALLPAPER")]

To set the wallpaper, use the following code snippet:

using Windows.System.UserProfile;

private async Task<bool> SetWallpaperAsync(StorageFile imageFile) 
{ 
    var success = false;
    if (UserProfilePersonalizationSettings.IsSupported())
    {
        var profileSettings = UserProfilePersonalizationSettings.Current;
        success = await profileSettings.TrySetWallpaperImageAsync(file);
    }
    return success;
} 

Analogously for TrySetLockScreenImageAsync.