- (NSString *)dateTimeDifferenceWithStartTime:(NSString *)startTime endTime:(NSString *)endTime {
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *startD =[dateFormatter dateFromString:startTime];
NSDate *endD = [dateFormatter dateFromString:endTime];
NSTimeInterval start = [startD timeIntervalSince1970]*1;
NSTimeInterval end = [endD timeIntervalSince1970]*1;
NSTimeInterval value = end - start;
int second = (int)value %60;//秒
int minute = (int)value /60%60;
int house = (int)value / (24 * 3600)%3600;
int day = (int)value / (24 * 3600);
NSString *stringTimeInterval;
if (day != 0) {
stringTimeInterval = [NSString stringWithFormat:@"耗时%d天%d小时%d分%d秒",day,house,minute,second];
}else if (day==0 && house != 0) {
stringTimeInterval = [NSString stringWithFormat:@"耗时%d小时%d分%d秒",house,minute,second];
}else if (day== 0 && house== 0 && minute!=0) {
stringTimeInterval = [NSString stringWithFormat:@"耗时%d分%d秒",minute,second];
}else{
stringTimeInterval = [NSString stringWithFormat:@"耗时%d秒",second];
}
return stringTimeInterval;
}
- (NSTimeInterval)timeIntervarlWithStartTime:(NSString *)startTime endTime:(NSString *)endTime {
NSDateFormatter * dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate * dateStart = [dateFormatter dateFromString:startTime];
NSDate * dateEnd = [dateFormatter dateFromString:endTime];
return [dateEnd timeIntervalSinceDate:dateStart];
}
iOS 计算时间差
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