objective c-匿名函數/塊的NSTimer

匿名函數/塊的NSTimer

需要實現安排三個小事件，但是不用給每個單獨開一個功能。怎麼樣用NStimer實現？

[NSTimer scheduledTimerWithTimeInterval:gameInterval  
         target:self selector:@selector(/* I simply want to update a label here */) 
         userInfo:nil repeats:NO];

最佳回答：

你可以用上dispatch_after，可以幫你實現和NSTimer和block執行類似的。

示例代碼：

int64_t delayInSeconds = gameInterval; // Your Game Interval as mentioned above by you

dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);

dispatch_after(popTime, dispatch_get_main_queue(), ^(void){

    // Update your label here. 

});