分钟小时倒计时

productState.text = [NSString stringWithFormat:@"代付款 %d分%d秒",30,0];

productState.textColor = MAIN_COLOR;

if (_timer==nil) {

__block int timeout = 2 * 60; //倒计时时间

if (timeout!=0) {

dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);

_timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,queue);

dispatch_source_set_timer(_timer,dispatch_walltime(NULL, 0),1.0*NSEC_PER_SEC, 0); //每秒执行

dispatch_source_set_event_handler(_timer, ^{

if(timeout<=0){ //倒计时结束，关闭

dispatch_source_cancel(_timer);

_timer = nil;

dispatch_async(dispatch_get_main_queue(), ^{

productState.text = @"萨比完事了都";

});

}else{

int days = (int)(timeout/(3600*24));

int hours = (int)((timeout-days*24*3600)/3600);

int minute = (int)(timeout-days*24*3600-hours*3600)/60;

int second = timeout-days*24*3600-hours*3600-minute*60;

dispatch_async(dispatch_get_main_queue(), ^{

productState.text = [NSString stringWithFormat:@"代付款 %d分%d秒",minute,second];

});

timeout--;

}

});

dispatch_resume(_timer);

}

}