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namespace share
{public static class Extensions
{
public static Task<JsonObject> GetAsyncEx(this FacebookClient facebookClient, string uri, object parameters)
{
TaskCompletionSource<JsonObject> taskCompletionSource = new TaskCompletionSource<JsonObject>();
EventHandler<FacebookApiEventArgs> getCompletedHandler = null;
getCompletedHandler = (s, e) =>
{
facebookClient.GetCompleted -= getCompletedHandler;
if (e.Error != null)
taskCompletionSource.TrySetException(e.Error);
else
taskCompletionSource.TrySetResult((JsonObject)e.GetResultData());
};
facebookClient.GetCompleted += getCompletedHandler;
facebookClient.GetTaskAsync(uri, parameters);
return taskCompletionSource.Task;
}
public static Task<JsonObject> PostAsyncEx(this FacebookClient facebookClient, string uri, object parameters)
{
TaskCompletionSource<JsonObject> taskCompletionSource = new TaskCompletionSource<JsonObject>();
EventHandler<FacebookApiEventArgs> postCompletedHandler = null;
postCompletedHandler = (s, e) =>
{
facebookClient.PostCompleted -= postCompletedHandler;
if (e.Error != null)
taskCompletionSource.TrySetException(e.Error);
else
taskCompletionSource.TrySetResult((JsonObject)e.GetResultData());
};
facebookClient.PostCompleted += postCompletedHandler;
facebookClient.PostTaskAsync(uri, parameters);
return taskCompletionSource.Task;
}
}
public partial class suiv: PhoneApplicationPage
{
private FacebookClient facebookClient;
String token;
public suiv()
{
InitializeComponent();
}
protected async override void OnNavigatedTo(NavigationEventArgs e)
{
token = (string)PhoneApplicationService.Current.State["Jeton"];
facebookClient = new FacebookClient(token);
Dictionary<string, object> parameters = new Dictionary<string, object>();
parameters["response_type"] = "token";
parameters["display"] = "touch";
parameters["scope"] = "publish_stream";
parameters["redirect_uri"] = "https://www.facebook.com/connect/login_success.html";
parameters["client_id"] = "";
parameters["grant_type"] = "fb_exchange_token";
parameters["client_secret"] = "";
parameters["fb_exchange_token"] = facebookClient.AccessToken;
try
{
JsonObject data = await facebookClient.GetAsyncEx("https://graph.facebook.com/oauth/access_token", parameters);
token = (string)data["access_token"];
facebookClient.AccessToken = token;
PhoneApplicationService.Current.State["token"] = token;
}
catch (Exception)
{
MessageBox.Show("Impossible de renouveler le token");
}
base.OnNavigatedTo(e);
}
private async void Button_Tap(object sender, System.Windows.Input.GestureEventArgs e)
{
string message = "Message correctement posté";
try
{
Dictionary<string, object> parameters = new Dictionary<string, object>();
parameters["message"] = "test ";
await facebookClient.PostAsyncEx("https://graph.facebook.com/me/feed", parameters);
}
catch (Exception)
{
message = "Impossible de poster le message";
}
Dispatcher.BeginInvoke(() =>
{
MessageBox.Show(message);
});
}
}} |
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