protected LockScreen()
{
GoToLockScreenSettings = new AsyncUnitCommand(async() => await Launcher.LaunchUriAsync(new Uri("ms-settings-lock:")));
RequestLockScreenAccess = new AsyncUnitCommand(async() => {
await LockScreenRequest.RequestThenSetLockScreen();
CheckIsAppProvider();
});
}
/// <summary>
/// The query string contains "WallpaperSettings" if the app is launched from the
/// phone's lock screen settings. In that case, this method sets a new lock screen
/// image. Note that the query string will be empty if the app is resumed from a
/// suspended state, even if it's opened from the lock screen settings. So there's
/// no guarantee that this will actually set the lock screen image immediately,
/// however if the user sets the app as the lock screen background provider, the
/// background agent will eventually set an image the next time it's scheduled to
/// run.
/// </summary>
/// <returns></returns>
private async Task HandleOpenAppFromLockScreenSettings()
{
var lockscreenKey = "WallpaperSettings";
string lockscreenValue = "";
bool lockscreenValueExists = NavigationContext.QueryString.TryGetValue(lockscreenKey, out lockscreenValue);
if (lockscreenValueExists)
{
await LockScreenRequest.RequestThenSetLockScreen();
}
}
