//method we will call to get the users data
//pass in grid so we can switch visibility when data is ready
public async void getSignedInUser(Grid userProfileGrid, ProgressBar progressBar)
{
//variable to hold response
string returnedUserJson = null;
//use this bool to check for any errors that occur
bool hasError = false;
//place web calls in try catch block just incase a network error occurs
//try catch will also stop app from crashing if error does occur
try
{
//client.getStringAsync will make the asynchronous call to the desired url
//the response (json string) will be stored into the returnedUser string
returnedUserJson = await client.GetStringAsync(url);
}
catch
{
//set error to true because a web exception occurred
hasError = true;
}
//if has error is false then we can deserialize the string
if (!hasError)
{
//bool to signify error
bool jsonError = false;
//the object we will deserialize to
UserClass.RootObject uc = null;
//try catch json incase some unknown error happens like an int being set to null
try
{
//let Json.Net deserialize the json string. passing in the json string we recieved and the typeof
uc = (UserClass.RootObject)JsonConvert.DeserializeObject(returnedUserJson, typeof(UserClass.RootObject));
}
catch
{
//if there was an error
jsonError = true;
}
//if there was no error then let us set our variables
if (!jsonError)
{
//we take the variables we need from the json and put it into our userProfile list
//UserProfile.Add(new UserProfile()
//{
// firstName = uc.response.user.firstName,
// lastName = uc.response.user.lastName,
// hometown = uc.response.user.homeCity,
// tipCount = uc.response.user.tips.count,
// badgesCount = uc.response.user.badges.count,
// checkInCount = uc.response.user.checkins.count,
// friendCount = uc.response.user.friends.count,
// email = uc.response.user.contact.email,
// image = uc.response.user.photo.prefix + "original" + uc.response.user.photo.suffix,
// maxScore = uc.response.user.scores.max,
// recentScore = uc.response.user.scores.recent,
// mayorshipCount = uc.response.user.mayorships.count,
// lastLocation = uc.response.user.firstName + " " +uc.response.user.lastName + " at " + uc.response.user.checkins.items.First().venue.name,
// lastLongitudeLocation = uc.response.user.checkins.items.First().venue.location.lng,
// lastLatitudeLocation =uc.response.user.checkins.items.First().venue.location.lat
//});
//set variables the long way because of null classes that can be sent back if you have an unused account
UserItem up = new ClassFolder.UserItem();
up.firstName = uc.response.user.firstName;
up.lastName = uc.response.user.lastName;
up.hometown = uc.response.user.homeCity;
up.tipCount = uc.response.user.tips.count;
up.badgesCount = uc.response.user.badges.count;
up.checkInCount = uc.response.user.checkins.count;
up.friendCount = uc.response.user.friends.count;
up.email = uc.response.user.contact.email;
up.image = uc.response.user.photo.prefix + "original" + uc.response.user.photo.suffix;
//when a user has no recent or max score the server returns null to the class
//we need to do this so that the any variables used inside scores class have a default value
if (uc.response.user.scores == null)
{
up.maxScore = 0;
up.recentScore = 0;
}
else
{
up.maxScore = uc.response.user.scores.max;
up.recentScore = uc.response.user.scores.recent;
}
up.mayorshipCount = uc.response.user.mayorships.count;
//have to check count of checkin items. for someone who has never checked in the class will be null
//causing the application to crash
if (uc.response.user.checkins.items.Count > 0)
{
up.lastLocation = uc.response.user.firstName + " " + uc.response.user.lastName + " at " + uc.response.user.checkins.items.First().venue.name;
up.lastLongitudeLocation = uc.response.user.checkins.items.First().venue.location.lng;
up.lastLatitudeLocation = uc.response.user.checkins.items.First().venue.location.lat;
//finally add user to list
UserProfile.Add(up);
up = null;
//set map coordinates if there was a last known place
setMapToLastVisitedLocation(new GeoCoordinate()
{
Latitude = UserProfile[0].lastLatitudeLocation, Longitude = userProfile[0].lastLongitudeLocation
});
}
else
{
up.lastLocation = uc.response.user.firstName + " " + uc.response.user.lastName + " has no last known location";
//finally add user to list
UserProfile.Add(up);
up = null;
}
//change visibility to make profile grid visible
//and make visibility of progress bar collapsed
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
userProfileGrid.Visibility = Visibility.Visible;
progressBar.Visibility = Visibility.Collapsed;
progressBar.IsEnabled = false;
});
}
}
//there was an error so just stop the loading and pop up a message box
else
{
}
}
public async void loadFriendProfile(string userId, Grid friendProfileGrid, ProgressBar progressBar)
{
//variable to hold response
string returnedUserJson = null;
//use this bool to check for any errors that occur
bool hasError = false;
//url
string url = "https://api.foursquare.com/v2/users/" + userId + "?oauth_token=" + App.accessToken + "&v=" + App.date;
//place web calls in try catch block just incase a network error occurs
//try catch will also stop app from crashing if error does occur
try
{
//client.getStringAsync will make the asynchronous call to the desired url
//the response (json string) will be stored into the returnedUser string
returnedUserJson = await client.GetStringAsync(url);
}
catch
{
//set error to true because a web exception occurred
hasError = true;
}
//if has error is false then we can deserialize the string
if (!hasError)
{
//bool to signify error
bool jsonError = false;
//the object we will deserialize to
UserClass.RootObject uc = null;
//try catch json incase some unknown error happens like an int being set to null
try
{
//let Json.Net deserialize the json string. passing in the json string we recieved and the typeof
uc = (UserClass.RootObject)JsonConvert.DeserializeObject(returnedUserJson, typeof(UserClass.RootObject));
}
catch
{
//if there was an error
jsonError = true;
}
//if there was no error then let us set our variables
if (!jsonError)
{
//now since we only load one persons profile at a time we will check the count of how mant items are in the lost
//if the list has no items then we procede as normal.
//but if the list does have an item in it. we do NOT add an item. we just change the values of the current item
//this allows up to save memory
if (FriendProfileList.Count == 0)
{
//set variables the long way because of null classes that can be sent back if you have an unused account
friendProfileItem up = new friendProfileItem();
up.firstName = uc.response.user.firstName;
up.lastName = uc.response.user.lastName;
up.hometown = uc.response.user.homeCity;
up.tipCount = uc.response.user.tips.count;
up.badgesCount = uc.response.user.badges.count;
up.checkInCount = uc.response.user.checkins.count;
up.friendCount = uc.response.user.friends.count;
up.email = uc.response.user.contact.email;
up.image = uc.response.user.photo.prefix + "original" + uc.response.user.photo.suffix;
up.bio = uc.response.user.bio;
//when a user has no recent or max score the server returns null to the class
//we need to do this so that the any variables used inside scores class have a default value
if (uc.response.user.scores == null)
{
up.maxScore = 0;
up.recentScore = 0;
}
else
{
up.maxScore = uc.response.user.scores.max;
up.recentScore = uc.response.user.scores.recent;
}
up.mayorshipCount = uc.response.user.mayorships.count;
//have to check count of checkin items. for someone who has never checked in the class will be null
//causing the application to crash
if (uc.response.user.checkins.items.Count > 0)
{
up.lastLocation = uc.response.user.checkins.items.First().venue.name;
up.categoryImage = uc.response.user.checkins.items.First().venue.categories.First().icon.prefix + "bg_64" + uc.response.user.checkins.items.First().venue.categories.First().icon.suffix;
up.lastLongitudeLocation = uc.response.user.checkins.items.First().venue.location.lng;
up.lastLatitudeLocation = uc.response.user.checkins.items.First().venue.location.lat;
//finally add user to list
FriendProfileList.Add(up);
up = null;
//set map coordinates if there was a last known place
setMapToLastVisitedLocation(new GeoCoordinate()
{
Latitude = UserProfile[0].lastLatitudeLocation, Longitude = userProfile[0].lastLongitudeLocation
});
}
else
{
up.lastLocation = uc.response.user.firstName + " " + uc.response.user.lastName + " has no last known location";
//finally add user to list
UserProfile.Add(up);
up = null;
}
}
else if (FriendProfileList.Count == 1)
{
//set variables the long way because of null classes that can be sent back if you have an unused account
friendProfileItem up = new friendProfileItem();
up.firstName = uc.response.user.firstName;
up.lastName = uc.response.user.lastName;
up.hometown = uc.response.user.homeCity;
up.tipCount = uc.response.user.tips.count;
up.badgesCount = uc.response.user.badges.count;
up.checkInCount = uc.response.user.checkins.count;
up.friendCount = uc.response.user.friends.count;
up.email = uc.response.user.contact.email;
up.image = uc.response.user.photo.prefix + "original" + uc.response.user.photo.suffix;
up.bio = uc.response.user.bio;
//when a user has no recent or max score the server returns null to the class
//we need to do this so that the any variables used inside scores class have a default value
if (uc.response.user.scores == null)
{
up.maxScore = 0;
up.recentScore = 0;
}
else
{
up.maxScore = uc.response.user.scores.max;
up.recentScore = uc.response.user.scores.recent;
}
up.mayorshipCount = uc.response.user.mayorships.count;
//have to check count of checkin items. for someone who has never checked in the class will be null
//causing the application to crash
if (uc.response.user.checkins.items.Count > 0)
{
up.lastLocation = uc.response.user.checkins.items.First().venue.name;
up.categoryImage = uc.response.user.checkins.items.First().venue.categories.First().icon.prefix + "bg_64" + uc.response.user.checkins.items.First().venue.categories.First().icon.suffix;
up.lastLongitudeLocation = uc.response.user.checkins.items.First().venue.location.lng;
up.lastLatitudeLocation = uc.response.user.checkins.items.First().venue.location.lat;
//finally add user to list
FriendProfileList.Add(up);
FriendProfileList.RemoveAt(0);
up = null;
//set map coordinates if there was a last known place
setMapToLastVisitedLocation(new GeoCoordinate()
{
Latitude = UserProfile[0].lastLatitudeLocation, Longitude = userProfile[0].lastLongitudeLocation
});
}
else
{
up.lastLocation = uc.response.user.firstName + " " + uc.response.user.lastName + " has no last known location";
//finally add user to list
UserProfile.Add(up);
UserProfile.RemoveAt(0);
up = null;
}
}
//this delay will allow the ui to load up all information
//we delay showing the profile by one second while images load
await Task.Delay(1000);
//change visibility to make profile grid visible
//and make visibility of progress bar collapsed
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
friendProfileGrid.Visibility = Visibility.Visible;
progressBar.Visibility = Visibility.Collapsed;
progressBar.IsEnabled = false;
});
}
}
//there was an error so just stop the loading and pop up a message box
else
{
}
}