static public void loadAvatar(Actions.DelegateBegin onBegin, Actions.DelegateDone onDone, Actions.DelegateCancel onCancel)
{
Actions.ActionFacebookGetAvatarArgs arg = new Actions.ActionFacebookGetAvatarArgs();
Actions.ActionFacebookGetAvatar action_fbavar = new Actions.ActionFacebookGetAvatar();
try {
if (onBegin != null)
{
action_fbavar.OnBegin += onBegin;
}
if (onDone != null)
{
action_fbavar.OnDone += onDone;
}
if (onCancel != null)
{
action_fbavar.OnCancel += onCancel;
}
action_fbavar.Do(arg);
} catch (Exception ex) {
if (onCancel != null)
{
onCancel(null, arg);
}
}
}
async void loadAvatar(ActionFacebookGetAvatarArgs arg)
{
HttpClient client = new HttpClient();
string url = "";
if (arg.IsGuest)
{
url = FacebookClient.Instance.getUserAvatarUrl(arg.FacebookId);
}
else
{
url = FacebookClient.Instance.getUserAvatarUrl();
}
#if DEBUG
Test.sendLog("C# begin loadAvatar url:" + url);
#endif
byte[] data = await client.GetByteArrayAsync(url);
var dispatcher = ActionHelper.getCurrentUIThread();
dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
try
{
CreateBitmap(arg, data);
}
catch (Exception ex)
{
#if DEBUG
Test.sendLog("C# loadAvatar err:" + ex.ToString());
#endif
}
});
}
async void CreateBitmap(ActionFacebookGetAvatarArgs arg, byte[] data)
{
MemoryStream ms = new MemoryStream(data);
IRandomAccessStream a1 = await ConvertToRandomAccessStream(ms);
////var bitmapImage = new WriteableBitmap(64,64);
////await bitmapImage.SetSourceAsync(a1);
////MemoryStream ms_out = new MemoryStream();
////IRandomAccessStream a2 = await ConvertToRandomAccessStream(ms_out);
////BitmapEncoder encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId,a2);
////IBuffer buff = bitmapImage.PixelBuffer;
////DataReader reader = DataReader.FromBuffer(buff);
////byte[] pixels = new byte[buff.Length];
/*reader.ReadBytes(pixels);
* encoder.SetPixelData(BitmapPixelFormat.Bgra8, BitmapAlphaMode.Ignore, 64, 64, 96, 96, pixels);
* await a2.ReadAsync(pixels.as(), (uint)myMemoryStream.Size, Windows.Storage.Streams.InputStreamOptions.None);
* using (Stream s = await FileManager.GetFileStreamForWrite("tmpAvatar"))
* {
* byte[] out_data = new byte[a2.Size];
*
* }*/
arg.Avatar = a1;
Done(arg);
}
public override void Do(ActionArgs e)
{
Begin(e);
if (precheckToDo(e))
{
try {
ActionFacebookGetAvatarArgs arg = e as ActionFacebookGetAvatarArgs;
loadAvatar(arg);
} catch (Exception ex) {
Cancel(e);
}
}
else
{
Cancel(e);
}
}
public override bool precheckToDo(ActionArgs e)
{
ActionFacebookGetAvatarArgs arg = e as ActionFacebookGetAvatarArgs;
if (arg != null)
{
if (arg.IsGuest)
{
return(arg.FacebookId > 0);
}
else
{
return(FacebookClient.Instance.IsUserLogedin());
}
}
return(false);
}