I have used Google play game leaderboard in my iOS app.i am submitting score from my and fetch score from there. i am using following method to submit score
`[score submitScoreWithCompletionHandler: ^(GPGScoreReport *report, NSError *error) {
if (error) {
// Handle the error
} else {
// Analyze the report, if you'd like
}
}];`
and below code to present leaderboard
NSString *targetLeaderboardId = #"my id";
[[GPGLauncherController sharedInstance] presentLeaderboardWithLeaderboardId:targetLeaderboardId];
but fetching score takes to much time.is there any way to reload or refresh leaderboard data.
anyone have any idea!
Unfortunately, Google Play Games Services for iOS has been deprecated, so I would not recommend putting too much time into it. More information: https://android-developers.googleblog.com/2017/04/focusing-our-google-play-games-services.html
Related
I was testing this method to remove tracks from a playlist. Basically I modified the demo project "simple track playback" provided with the SDK. I wanted to remove the track form the playlist when you hit fastForward. I changed the fastForward method this way but it's not doing anything, and error is nil.
-(IBAction)fastForward:(id)sender {
if([self.player isPlaying] && self.currentPlaylistSnapshot){
SPTAuth *auth = [SPTAuth defaultInstance];
[self.currentPlaylistSnapshot removeTracksFromPlaylist:#[self.player.currentTrackURI]
withAccessToken:auth.session.accessToken
callback:^(NSError *error) {
if (error != nil) {
NSLog(#"*** Failed to remove track : %#", self.titleLabel.text);
return;
}
}];
}
[self.player skipNext:nil];
}
self.currentPlaylistSnapshot is the one I've got from the handleNewSession method.
There's also a static method apparently offering something similar which I have't tried yet.
createRequestForRemovingTracks:fromPlaylist:withAccessToken:snapshot:error:
According to the documentation both options are implemented asynchronously and will take seconds to reflect the results in the server but I'm suspecting that there's either something wrong or I'm just missing to do an actual request to push the changes on the local snapshot maybe?
Documentation:
https://developer.spotify.com/ios-sdk-docs/Documents/Classes/SPTPlaylistSnapshot.html#//api/name/removeTracksWithPositionsFromPlaylist:withAccessToken:callback:
ios sdk:
https://github.com/spotify/ios-sdk
I solved my issue by reseting simulator + adding SPTAuthPlaylistModifyPublicScope (which I fogot to do...)
auth.requestedScopes = #[SPTAuthStreamingScope, SPTAuthPlaylistModifyPublicScope];
My game implements a custom user interface that lists the local player's friends.
I also have a Game Center leaderboard.
When my game lists the players, it also tries to load their scores from the leaderboard, using this code:
GKLeaderboard *request = [[GKLeaderboard alloc] initWithPlayerIDs:myFriends];
request.timeScope = GKLeaderboardTimeScopeAllTime;
request.identifier = #"my_leaderboards";
if (request != nil) {
[request loadScoresWithCompletionHandler: ^(NSArray *scores, NSError *error) {
if (error != nil) {
NSLog(#"Error: %#",error.localizedDescription);
}
if (scores != nil) {
NSLog(#"WORKED: %#",scores);
}
}];
}
And it works just fine.
... except when one of the friends has no score (for instance, they never played the game in the first place). When one of the players in myFriends has no score entry in the leaderboard, the completion handler is never called. There is no error and no score reported, because it never fires in the first place.
I realised this when testing an account that has two friends. One friend has played the game (so they have a score), and the other has not. The completion handler never got called. Then, I unfriended the guy that had no score, and the completion handler worked fine, returning the score of the friend that did have a score.
I somewhat understand this behaviour - after all, I'm asking it to give me a score that does not exist. But is there a workaround? As in, tell it to return a 0 if there is no score?
iOS 7.
It cannot be helped, the completion handler indeed won't be called because there is no score entry in the leaderboards. Although I still don't understand why doesn't it just return an error saying so.
Since the custom friend list just shows statistics, I just put a loading icon in place for each statistic. If the handler is not called for more than 10 seconds, I assume that there is no score entry and just display a 0.
In my app I have an achievement for 10 wins in a row. So when the user wins 5 games in a row I report the achievement 50% completed - this works fine. When the user loses some games I call my resetAchievment method which sets the percentage to 0 and reports the percentage again. However when I restart the app the percentage gets read from the GKAchivement and it still shows 50%.
- ( void ) resetAchievement
{
_gamekitAchievement.percentComplete=0.0f;
_counter = 0;
[self report];
}
- ( void ) report
{
_gamekitAchievement.showsCompletionBanner = YES;
[_gamekitAchievement reportAchievementWithCompletionHandler:^(NSError *error)
{
if (error)
{
NSLog(#"reporting Achievment: %# failed, error: %#", _gamekitAchievement.identifier, [error localizedDescription]);
}
}];
}
Is it not possible to report a smaller percentage again - or am I doing something wrong?
I have no actual experience from GameKit at all but from reading the documentation and searching the web it seems you're only able to report progress and not regression(?) Not to mention the fact that you can only reset ALL achievements... Perhaps the following would still help you achieve (ahem) what you want:
Update all your local achievement data with + (void)loadAchievementsWithCompletionHandler:
Store this data in the userDefaults for safety
Do NOT reset the local achievement data
Reset all the achievements with + (void)resetAchievementsWithCompletionHandler:
Change the percentComplete to 0 on the achievement in question.
report progress of all the achievements from your local storage
Now, as I mention, having no hands-on experience with this framework the above might not be practical for a number of reasons I am unaware of (the way progress is presented to the player for instance). Guess it was worth a shot to share the idea anyways...
Short answer: It is not possible to report a smaller percentage again.
Long answer: A lower GameCenter score will not overwrite a higher one.
For example you have a high score of 10 points and it's recorded in GameCenter.
If in the next try you get 5 points and they are submitted to GC, your high score of 10 won't be affected.
Similarly if you try to 'reset' your score, it counts as submitting a new score of 0, so it won't make a difference.
This only applies to scores and achievements submitted to GameCenter, inside your app you can do anything you want (for example your own custom leaderboard or something)
If you think about it, 5 wins is not 50% of the way there, since they could lose the 6th, then win 10 in a row, in which case they played 16 total games and 5 wins was more like 30% of the way there. In this case, it is all or nothing, so don't report anything until they have all 10.
Please be aware that storing the progress towards an achievement in NSUserDefaults doesn't take different GameCenter users into account. That means, if Player A (logged into GameCenter) makes some progress and at 90 % progress another Player B on the same device logs into GameCenter with his own account, he starts with the progress made by Player A.
You might solve this by storing a whole NSDictionary with the Player IDs as keys into NSUserDefaults.
What you'll want to do is save it NSUserdefaults. then, Call the NSUser default and check what number it is by using an IF statement.
-(void)checkAcheivement{
scoreNumber = [NSUserDefaults standardUserDefaults] objectForKey:#"GamesWon"]
if(scoreNumber == 10){
//Run code to save achievement in Game Center(_gamekit stuff)
}
//-(void)checkScoreFire{
//scoreNumber = [NSUserDefaults standardUserDefaults] objectForKey:#"GamesWon"]
//if(scoreNumber == 5){
//Run code to set up alert view for 5 wins below
//UIAlertView* message = [[UIAlertView alloc]
// initWithTitle: #"Alert"
// message: #"You are halfway to the Achievement!"
// delegate: self
// cancelButtonTitle: #"Dismiss"
// [message show];
//}
//to save score use this method:
-(void)saveScore{
scoreNumber = [NSUserDefaults standardUserDefaults] objectForKey:#"GamesWon"]
if(gameScore > scoreNumber){
[[NSUserDefaults standardUserDefaults]setInteger:scoreNumber forKey:#"GamesWon"];
}
This will only post the achievement if it is ten, i suggest not putting the achievement in until then, because it makes it more difficult. I also suggest setting up an AlertView to let the person know they are halfway there. You can do so with the code commented above with the checkScoreFive method. Remember to declare everything in the .h file as well.
IBOutlet UIAlertView *AlertView;
-(void)checkAcheivement;
-(void)checkScoreFire;
-(void)saveScore;
int gameScore;
int scoreNumber;
I'm having the devils own time with Game Kit programmatic matching, and can only assume that despite reading all the tutorials I can lay my hands on... I've got the flow wrong somewhere.
Sign in to the Sandbox works fine, the app is being distributed with an App ID specific profile that is Game Center enabled. It all seems to work fine except that it never finds another "nearby" player.
The code below is my authentication handler, which is called correctly, but as I say despite it logging "Starting browser for nearby players", none are ever reported, blue tooth on same wifi network etc etc etc. Utterly perplexed as to what I am doing wrong.
-(void) authenticationHandler{
if ([_currentScene conformsToProtocol:#protocol(BOMScene)]){
MyScene<BOMScene> *theScene = (MyScene<BOMScene> *) _currentScene;
//Make sure the current scene gets the message that they are now authenticated
if ([GKLocalPlayer localPlayer].isAuthenticated){
[theScene localPlayerAuthenticated];
} else {
[theScene localPlayerDeauthenticated];
}
}
NSLog(#"Game Center Status Change: %#", _localPlayer.authenticated ? #"Available" : #"Not Available");
if (_localPlayer.authenticated){
if (!_matchMaker){
_matchMaker= [GKMatchmaker sharedMatchmaker];
NSLog(#"Starting to browser for nearby players");
[_matchMaker startBrowsingForNearbyPlayersWithReachableHandler:^(NSString *playerID, BOOL reachable) {
NSLog(#"Nearby player %# is %#",playerID, reachable ? #"available" : #"no longer available");
if (reachable){
[_nearbyPlayers addObject:playerID];
} else {
[_nearbyPlayers removeObject:playerID];
}
}];
}
} else {
_matchRequest = nil;
[_matchMaker stopBrowsingForNearbyPlayers];
[_nearbyPlayers removeAllObjects];
_matchMaker = nil;
}
You need to install an invitation handler.
Please see my answer here for a full breakdown:
Some startBrowsingForNearbyPlayersWithReachableHandler questions
I'm wondering if there is a simple a way to retrieve the best score and the last achievement that has been unlocked for the local user in an iOS app.
Thanks for your advices !
Yes there is:
1) Best score: Create a GKLeaderBoard instance called myLeaderBoard and set the category you want (as in leader board ID) and set the timeScope property to GKLeaderboardTimeScopeAllTime
Then, GKLeaderBoard has the following:
- (void)loadScoresWithCompletionHandler:(void (^)(NSArray *scores, NSError *error))completionHandler
When the request is done, the completion handler is called and from that moment on, myLeaderBoard instance will have the following property: localPlayerScore which is the best score up to now, store it and use it as you wish :)
2) Most recent Achievement: This works in the same spirit, do the following:
[GKAchievement loadAchievementsWithCompletionHandler:^(NSArray *achievements, NSError *error) {
for(GKAchievement *ach in achievements) {
//sort using the lastReportedDate property of GKAchievement (which is an NSDate).
}
}];