1
我有一個應用程序,每3秒鐘觸發一個事件發送到我的服務器並獲取信息。如果在定時器最後一次觸發和隨後觸發事件之間發生事件,我想重置計時器倒數。所以基本上,如果我的其他事件在2.5秒內觸發,並且計時器設置爲在0.5秒內觸發,我想將計時器重置爲3秒。我怎樣才能做到這一點?如何重置計時器?
我宣佈這個定時器:
_timer = [NSTimer scheduledTimerWithTimeInterval:3.0 target: self
selector: @selector(getUpdates)
userInfo:nil
repeats: YES];
而且僞:
-(void) anEventHappened
{
// I got something from the server, I don't need to query it. Reset timer here.
}
-(void) getUpdates
{
// I received no reset, I should check for an update.
}