Question

在我的“xcode”计时器项目中，我有一个名为“overall”的int变量。当我第一次设置我的计时器时，整个变量被设置为计时器所需的秒数。然后我每隔一段NSTimer取一个变量。

overall = (timerMin * 60) + (timerHour * 60 * 60) + timer;
[self setTimer];

When i first set the variable

如果应用程序进入后台，我会记录日期，然后记录进入前台的日期。然后我找出两个日期的差异，并将其从整体变量中删除。并回忆NSTimer。

[Countdown invalidate];
Countdown = nil;

overallBackground = [saveOverall integerForKey:overall_save];
int newOverall = (int)overallBackground - secondsInBackground;
overall = newOverall;

[self setTimer];

When i set it after re-entering the app from background

我遇到的问题是，即使我已经进入后台并在重新启动Timer时重置整个变量，之前的整体变量数仍然存在，但变量也存储了新数字！

2014-05-11 16:48:18.759 Timer[836:60b] overall:3595 - Old number
2014-05-11 16:48:19.044 Timer[836:60b] overall:3591 - New number
2014-05-11 16:48:19.759 Timer[836:60b] overall:3594 - Old number
2014-05-11 16:48:20.044 Timer[836:60b] overall:3590 - New number

    NSLog(@"overall:%d", overall);


    overall = overall - 1;
    [saveOverall setInteger:overall forKey:overall_save];
    [saveOverall synchronize];


    hours = overall / 3600;
    minutes = overall - (hours * 3600);
    minCon = minutes / 60;
    seconds = minutes - (minCon * 60);

从上面的日志中你可以看到我的意思。我正在将完全相同的变量打印到日志中，只是你知道。

我的问题是为什么会发生这种情况？我怎么阻止它？

Xcode int变量持有多个值？

0 个答案: