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iOS GameKit

iOS开发手册

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。

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

#import

@interface ViewController : UIViewController

-(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

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