延迟一段时间后执行一个块

Posted 2021-02-23

enqueue a block at a certain time

double delayInSeconds = 15.0;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
 
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
 
    [self fooFirstInput:first secondInput:second];
 
});