工作备忘-获得游戏在线时长

来源：互联网发布：联通显示4g但没有网络编辑：程序博客网时间：2024/06/05 05:49

//创建通知监听（判断游戏时长）        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationWillResignActive:) name:UIApplicationWillResignActiveNotification object:nil]; //监听是否触发home键挂起程序.                [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidBecomeActive:) name:UIApplicationDidBecomeActiveNotification object:nil]; //监听是否重新进入程序程序.

#pragma mark - 实现2个NSNotificationCenter所触发的事件方法//回到后台都视为一次会话结束（计时end）+ (void)applicationWillResignActive:(NSNotification *)notification{    NSTimeInterval time = [[NSDate date] timeIntervalSince1970];    long long int date = (long long int)time;    NSString * timeStr = [NSString stringWithFormat:@"%lld",date];    NSLog(@"后台：timestr :%@ ",timeStr);}//回到前台都视为一次新启动（计时start）+ (void)applicationDidBecomeActive:(NSNotification *)notification{    NSTimeInterval time = [[NSDate date] timeIntervalSince1970];    long long int date = (long long int)time;    NSString * timeStr = [NSString stringWithFormat:@"%lld",date];    NSLog(@"前台：timestr :%@ ",timeStr);}

再将两个时间相减可得出游戏时长。

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