Question

Android 怎么获取当前的时间戳

Answer 1

Android获取当前时间代码

//需要引用的
import java.sql.Timestamp;
import java.text.SimpleDateFormat;

//详细代码
java.util.Date currentdate = new java.util.Date();//当前时间
//long i = (currentdate.getTime()/1000-timestamp)/(60);
//System.out.println(currentdate.getTime());
//System.out.println(i);
Timestamp now = new Timestamp(System.currentTimeMillis());//获取系统当前时间
System.out.println("now-->"+now);//返回结果精确到毫秒。

时间戳转日期
int timestamp = 1310457552; //将这个时间戳转为日期

return getTime(timestamp);

定义getTime， getDate, IntToLong

public static String getTime(int timestamp){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String time= null;
try {
String str = sdf.format(new Timestamp(IntToLong(timestamp)));
time = str.substring(11, 16);

String month = str.substring(5, 7);
String day = str.substring(8,10 );
time =getDate(month, day)+ time;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return time;
}

public static String getDate(String month,String day){
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//24小时制
java.util.Date d = new java.util.Date(); ;
String str = sdf.format(d);
String nowmonth = str.substring(5, 7);
String nowday = str.substring(8,10 );
String result = null;

int temp = Integer.parseInt(nowday)-Integer.parseInt(day);
switch (temp) {
case 0:
result="今天";
break;
case 1:
result = "昨天";
break;
case 2:
result = "前天";
break;
default:
StringBuilder sb = new StringBuilder();
sb.append(Integer.parseInt(month)+"月");
sb.append(Integer.parseInt(day)+"日");
result = sb.toString();
break;
}
return result;
}

//java Timestamp构造函数需传入Long型
public static long IntToLong(int i){
long result = (long)i;
result*=1000;
return result;
}