/**
* 倒計時按鈕
*
* @param timeLine 倒計時總時間
* @param title 還沒倒計時的title
* @param subTitle 倒計時中的子名字擎析，如時、分
* @param mColor 還沒倒計時的顏色
* @param color 倒計時中的顏色
*/
- (void)startWithTime:(NSInteger)timeLine title:(NSString *)title countDownTitle:(NSString *)subTitle mainColor:(UIColor *)mColor countColor:(UIColor *)color;
- (void)startWithTime:(NSInteger)timeLine title:(NSString *)title countDownTitle:(NSString *)subTitle mainColor:(UIColor *)mColor countColor:(UIColor *)color {
//倒計時時間
__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);
//每秒執(zhí)行一次
dispatch_source_set_timer(_timer, dispatch_walltime(NULL, 0), 1.0 * NSEC_PER_SEC, 0);
dispatch_source_set_event_handler(_timer, ^{
//倒計時結(jié)束抱完，關(guān)閉
if (timeOut <= 0) {
dispatch_source_cancel(_timer);
dispatch_async(dispatch_get_main_queue(), ^{
self.backgroundColor = mColor;
[self setTitle:title forState:UIControlStateNormal];
self.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(), ^{
self.backgroundColor = color;
[self setTitle:[NSString stringWithFormat:@"%@%@",timeStr,subTitle] forState:UIControlStateNormal];
self.userInteractionEnabled = NO;
});
timeOut--;
}
});
dispatch_resume(_timer);
}
最后編輯于 ：
?著作權(quán)歸作者所有,轉(zhuǎn)載或內(nèi)容合作請聯(lián)系作者
