load Game Center friends and their scores into UITableView - ios

Question

So I was wondering after reading the apple docs(https://developer.apple.com/library/ios/documentation/GameKit/Reference/GKLeaderboard_Ref/Reference/Reference.html#//apple_ref/occ/instp/GKLeaderboard/category) how would one create a UITableView and fill it with the localPlayers Game Center friends and there scores in a specific leaderboard. I know how to get the friends list and friends scores individually by using the loadScoresWithCompletionHandler: method.
Edit: So far I got this to get individual friends photo, score and displayname saved into one NSArray. But i can't figure out how to disply them in a UITableView.
- (void) loadPlayerData: (NSArray *) identifiers
{
GKLeaderboard *leaderboardRequest = [[GKLeaderboard alloc] init];
if (leaderboardRequest != nil) {
leaderboardRequest.playerScope = GKLeaderboardPlayerScopeFriendsOnly;
leaderboardRequest.timeScope = GKLeaderboardTimeScopeAllTime;
leaderboardRequest.category = #"MJ_IL";
[leaderboardRequest loadScoresWithCompletionHandler: ^(NSArray *scores, NSError *error) {
if (error != nil) {
// handle the error. if (scores != nil)
}
if (scores != nil){
for (GKScore* score in scores) {
NSArray *playerIdArray = [NSArray arrayWithObject:score.playerID];
[GKPlayer loadPlayersForIdentifiers:playerIdArray withCompletionHandler:^(NSArray *players, NSError *error) {
GKPlayer *player = [players objectAtIndex:0];
[player loadPhotoForSize:GKPhotoSizeSmall withCompletionHandler:^(UIImage *photo, NSError *error) {
if (score.playerID == player.playerID) {
if (photo != nil) {
playerInfo = [NSArray arrayWithObjects:score, player.displayName, photo, nil];
} else if (photo == nil) {
playerInfo = [NSArray arrayWithObjects:score, player.displayName, nil];
}
if (error != nil) {
NSLog(#"%#", error.localizedDescription);
}
}
}];
}];
}
}
}];
}
}
- (void)compareLocalPlayerScoreWithFriends {
GKScore *friendScore = [playerInfo objectAtIndex:0];
NSString *friendDisplayName = [playerInfo objectAtIndex:1];
if ([playerInfo objectAtIndex:2] != nil) {
UIImage *friendPhoto = [playerInfo objectAtIndex:2];
if (friendScore.value > interactiveHighscore) {
[friendNameLabel setText:friendDisplayName];
[friendScoreLabel setText:(NSString *)friendScore];
friendImageView.image = friendPhoto;
}
}
}
Thanks guys,
Georges

Answer 1

Take a look at this tutorial by Ray Wenderlich, it explains how to display simple pictures and text in a UITableView - there are three parts and should get you working with, at least, a basic but working view.
At its very core level this is the code that does "the work" for displaying in a UITableView
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:#"MyBasicCell"];
ScaryBugDoc *bug = [self.bugs objectAtIndex:indexPath.row];
cell.textLabel.text = bug.data.title;
cell.imageView.image = bug.thumbImage;
return cell;
}
Update
Here is my code for generating leaderbord data with alias and photos, hope you can modify it appropriately but shouldnt be too different
-(void)getScoresAndAliasForLeaderboard:(GKLeaderboard *)leaderboardRequest{
if (leaderboardRequest == nil)
{
leaderboardRequest = [[GKLeaderboard alloc] init];
leaderboardRequest.playerScope = GKLeaderboardPlayerScopeFriendsOnly;
leaderboardRequest.timeScope = GKLeaderboardTimeScopeAllTime;
leaderboardRequest.category = #"HighScore";
leaderboardRequest.range = NSMakeRange(1,100);
}
[leaderboardRequest loadScoresWithCompletionHandler: ^(NSArray *scores, NSError *error) {
if (error != nil)
{
// Handle the error.
}
if (scores != nil)
{
NSMutableArray *retrievePlayerIDs = [[NSMutableArray alloc] init];
for (GKScore *s in scores)
{
[retrievePlayerIDs addObject:s.playerID];
GCLeaderboardScore *playerScore = [[GCLeaderboardScore alloc] init];
playerScore->playerID = s.playerID;
playerScore->score = (int)s.value;
playerScore->rank = s.rank;
playerScores[s.playerID] = playerScore; //playerScores is a NSMutableDictionary
if ([s.playerID isEqualToString: leaderboardRequest.localPlayerScore.playerID]){
me = playerScore;
}
}
if (me == nil){
me = [[GCLeaderboardScore alloc] init];
me->playerID = leaderboardRequest.localPlayerScore.playerID;
me->score = leaderboardRequest.localPlayerScore.value;
me->alias = #"Me";
playerScores[me->playerID] = me;
}
[GKPlayer loadPlayersForIdentifiers:retrievePlayerIDs withCompletionHandler:^(NSArray *playerArray, NSError *error)
{
for (GKPlayer* p in playerArray)
{
GCLeaderboardScore *playerScore = playerScores[p.playerID];
playerScore->alias = p.alias;
[p loadPhotoForSize:GKPhotoSizeSmall withCompletionHandler:^(UIImage *photo, NSError *error) {
if (photo != nil) {
playerScore->photo = photo;
}
else{
playerScore->photo = [UIImage imageNamed:#"wordpress_avatar.jpg"];
}
if (error != nil) {
NSLog(#"%#", error.localizedDescription);
}
}];
}
}];
}
}];
}