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//
// UIButton+countDown.m
// LiquoriceDoctorProject
//
// Created by HenryCheng on 15/12/4.
// Copyright © 2015年 iMac. All rights reserved.
//
#import "UIButton+countDown.h"
@implementation UIButton (countDown)
- (void)startWithTime:(NSInteger)timeLine title:(NSString *)title countDownTitle:(NSString *)subTitle mainColor:(UIColor *)mColor countColor:(UIColor *)color {
__weak typeof(self) weakSelf = self;
//倒计时时间
__block NSInteger timeOut = timeLine;
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);
//每秒执行一次
dispatch_source_set_timer(_timer, dispatch_walltime(NULL, 0), 1.0 * NSEC_PER_SEC, 0);
dispatch_source_set_event_handler(_timer, ^{
//倒计时结束,关闭
if (timeOut <= 0) {
dispatch_source_cancel(_timer);
dispatch_async(dispatch_get_main_queue(), ^{
weakSelf.backgroundColor = mColor;
[weakSelf setTitle:title forState:UIControlStateNormal];
weakSelf.userInteractionEnabled = YES;
});
} else {
int allTime = (int)timeLine + 1;
int seconds = timeOut % allTime;
NSString *timeStr = [NSString stringWithFormat:@"%0.2d", seconds];
dispatch_async(dispatch_get_main_queue(), ^{
weakSelf.backgroundColor = color;
[weakSelf setTitle:[NSString stringWithFormat:@"%@%@",timeStr,subTitle] forState:UIControlStateNormal];
weakSelf.userInteractionEnabled = NO;
});
timeOut--;
}
});
dispatch_resume(_timer);
}
@end