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
转载本站内容时,请务必注明来自W3xue,违者必究。