private async void ButtonSetImage_Click(object sender, RoutedEventArgs e)
{
try
{
var isProvider = LockScreenManager.IsProvidedByCurrentApplication;
if (!isProvider)
{
LockScreenRequestResult op = await LockScreenManager.RequestAccessAsync();
isProvider = op == LockScreenRequestResult.Granted;
}
if (isProvider)
{
if (App.MainViewModel.ImageUri == App.MainViewModel.DefaultImageUri)
{
LockScreen.SetImageUri(new Uri("ms-appx://" + App.MainViewModel.DefaultImageUriSystem.OriginalString));
}
else
{
LockScreen.SetImageUri(new Uri("ms-appdata:///local/" + imageFileNameSystem));
}
App.MainViewModel.RaisePropertyChanged("IsLockscreen");
MessageBox.Show(AppResources.SettingBackgroundSuccess);
}
else
{
MessageBox.Show(AppResources.SettingBackgroundError);
}
}
catch { MessageBox.Show(AppResources.SettingBackgroundError); }
}
private async void ApplicationBarIconButton_Click_Wallpaper(object sender, EventArgs e)
{
var viewModel = (PatternDetailViewModel)ViewModel;
string title = viewModel.Title;
string uriString = viewModel.ImageUrl;
string fileName = StripInvalidChars(title) + ".jpeg";
var size = ResolutionHelper.DisplayResolution;
int targetWidth = (int)size.Width;
int targetHeight = (int)size.Height;
lock (locker)
{
WriteableBitmap writeableBitmap = GetBitmap(uriString, targetWidth, targetHeight);
SaveImageToIsolatedStorage(writeableBitmap, targetWidth, targetHeight, fileName);
}
using (var section = await critSection.EnterAsync())
{
if (!LockScreenManager.IsProvidedByCurrentApplication)
{
LockScreenRequestResult result = await LockScreenManager.RequestAccessAsync();
if (result == LockScreenRequestResult.Granted)
{
lock (locker)
{
SetAsWallpaper(fileName);
}
}
}
else
{
lock (locker)
{
SetAsWallpaper(fileName);
}
}
}
}
public static async Task <LockScreenRequestResult> SetLockscreenProvider()
{
return(await Task.Run <LockScreenRequestResult>(async() =>
{
LockScreenRequestResult result = LockScreenRequestResult.Denied;
try
{
var isProvider = LockScreenManager.IsProvidedByCurrentApplication;
if (!isProvider)
{
// If you're not the provider, this call will prompt the user for permission.
// Calling RequestAccessAsync from a background agent is not allowed.
result = await LockScreenManager.RequestAccessAsync();
}
}
catch (System.Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
}
return result;
}));
}