前言：
iOS中把时间转化成“刚刚、几分钟前、几小时前、几天前、某月某日几点几分、.......”格式
这就需要看后台返回什么样的类型了，在项目中碰到的无非就是，格式化后和时间戳了。所以，这次把这两种我都结合起来，放到这里，直接拿去用！
一、返回格式化后的时间 2016-10-11 12:33:33
pragma mark 时间格式转化
注意：数据返回类型为格式化后的时间 eg: "2016-10-11 12:33:33"
-(NSString *) compareCurrentTime:(NSString *)str
{
//把字符串转为NSdate
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *timeDate = [dateFormatter dateFromString:str];
//得到与当前时间差
NSTimeInterval timeInterval = [timeDate timeIntervalSinceNow];
timeInterval = -timeInterval;
//标准时间和北京时间差8个小时
// timeInterval = timeInterval - 86060;
long temp = 0;
NSString *result;
if (timeInterval < 60) {
result = [NSString stringWithFormat:@"刚刚"];
}
else if((temp = timeInterval/60) <60){
result = [NSString stringWithFormat:@"%ld分钟前",temp];
}
else if((temp = temp/60) <24){
result = [NSString stringWithFormat:@"%ld小时前",temp];
}
else if((temp = temp/24) <30){
result = [NSString stringWithFormat:@"%ld天前",temp];
}
else if((temp = temp/30) <12){
result = [NSString stringWithFormat:@"%ld月前",temp];
}
else{
temp = temp/12;
result = [NSString stringWithFormat:@"%ld年前",temp];
}
return result;
}
二、返回的是时间戳
pragma mark 时间格式转化
注意：后台返回的时间戳包括10位或者有小数点。
eg：“1480064761” 1480064761.000000
-(NSString *)distanceTimeWithBeforeTime:(double)beTime
{
NSTimeInterval now = [[NSDate date]timeIntervalSince1970];
double distanceTime = now - beTime;
NSString *distanceStr;
NSDate *beDate = [NSDate dateWithTimeIntervalSince1970:beTime];
NSDateFormatter* df = [[NSDateFormatter alloc]init];
[df setDateFormat:@"HH:mm"];
NSString * timeStr = [df stringFromDate:beDate];
[df setDateFormat:@"dd"];
NSString *nowDay = [df stringFromDate:[NSDate date]];
NSString *lastDay = [df stringFromDate:beDate];
if (distanceTime < 60) {
distanceStr = @"刚刚";
}
else if (distanceTime <60*60) {
distanceStr = [NSString stringWithFormat:@"%ld分钟前",(long)distanceTime/60];
}
else if(distanceTime <246060 && [nowDay integerValue] == [lastDay integerValue]){
distanceStr = [NSString stringWithFormat:@"今天 %@",timeStr];
}
else if(distanceTime<246060*2 && [nowDay integerValue] != [lastDay integerValue]){
if ([nowDay integerValue] - [lastDay integerValue] ==1 || ([lastDay integerValue] - [nowDay integerValue] > 10 && [nowDay integerValue] == 1)) {
distanceStr = [NSString stringWithFormat:@"昨天 %@",timeStr];
}
else{
[df setDateFormat:@"MM-dd HH:mm"];
distanceStr = [df stringFromDate:beDate];
}
}
else if(distanceTime <246060*365){
[df setDateFormat:@"MM-dd HH:mm"];
distanceStr = [df stringFromDate:beDate];
}
else{
[df setDateFormat:@"yyyy-MM-dd HH:mm"];
distanceStr = [df stringFromDate:beDate];
}
return distanceStr;
}
三、捎带福利、获取当前时间戳方法，返回10位。
pragma mark 获取当前时间戳
-(NSString *)getCurrentTime{
NSDate *senddata = [NSDate date];
NSString *date2 = [NSString stringWithFormat:@"%ld", (long)[senddata timeIntervalSince1970]];
return date2;
}
