- (void)yourButtonTitleTime
{
__block int timeout=60; //倒计时时间
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_source_t _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);
dispatch_async(dispatch_get_main_queue(), ^{
//设置界面的按钮显示 根据自己需求设置
verBut.userInteractionEnabled = YES;
});
}else{
dispatch_async(dispatch_get_main_queue(), ^{
//设置界面的按钮显示 根据自己需求设置
[verBut setTitle:(timeout==0?@"重发":[NSString stringWithFormat:@"%d",timeout]) forState:UIControlStateNormal];
verBut.userInteractionEnabled = timeout==0?YES:NO;
});
timeout--;
}
});
dispatch_resume(_timer);
}