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IOS GameKit
简介
GameKit是iOS SDK中一个常用的框架。其核心功能有3个:
- 交互游戏平台Game Center,
- P2P设备通讯功能
- In-Game Voice。
实例步骤
1.在链接 iTunes 时请确保拥有一个唯一的 App ID( unique App ID),App ID在我们应用程序更新 bundle ID时及在Xcode代码签名与相应的配置文件需要使用到。
2.创建新的应用程序和更新应用程序信息。在添加新的应用程序文档可以了解更多有关信息。
3.打开你申请的application,点击Manage Game Center选项。进入后点击Enable Game Center使你的Game Center生效。接下来设置自己的Leaderboard和Achievements。
4.下一步涉及处理代码,并为我们的应用程序创建用户界面。
5.创建一个single view application,并输入 bundle identifier 。
6.更新 ViewController.xib,如下所示
7.选择项目文件,然后选择目标,然后添加GameKit.framework
8.为已添加的按钮创建IBActions
9.更新ViewController.h文件,如下所示
#import <UIKit/UIKit.h> #import <GameKit/GameKit.h> @interface ViewController : UIViewController <GKLeaderboardViewControllerDelegate> -(IBAction)updateScore:(id)sender; -(IBAction)showLeaderBoard:(id)sender; @end
10.更新ViewController.m ,如下所示
#import "ViewController.h" @interface ViewController () @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; if([GKLocalPlayer localPlayer].authenticated == NO) { [[GKLocalPlayer localPlayer] authenticateWithCompletionHandler:^(NSError *error) { NSLog(@"Error%@",error); }]; } } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void) updateScore: (int64_t) score forLeaderboardID: (NSString*) category { GKScore *scoreObj = [[GKScore alloc] initWithCategory:category]; scoreObj.value = score; scoreObj.context = 0; [scoreObj reportScoreWithCompletionHandler:^(NSError *error) { // Completion code can be added here UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"Score Updated Succesfully" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles: nil]; [alert show]; }]; } -(IBAction)updateScore:(id)sender{ [self updateScore:200 forLeaderboardID:@"tutorialsPoint"]; } -(IBAction)showLeaderBoard:(id)sender{ GKLeaderboardViewController *leaderboardViewController = [[GKLeaderboardViewController alloc] init]; leaderboardViewController.leaderboardDelegate = self; [self presentModalViewController: leaderboardViewController animated:YES]; } #pragma mark - Gamekit delegates - (void)leaderboardViewControllerDidFinish: (GKLeaderboardViewController *)viewController{ [self dismissModalViewControllerAnimated:YES]; } @end
输出
运行该应用程序,输出结果如下
当我们单击显示排行榜时,屏幕显示如下:
当我们点击更新分数,比分将被更新到我们排行榜上,我们会得到一个信息,如下图所示
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