Android 获取系统时间及时间戳转换

//获取当前时间戳
long timeStamp = System.currentTimeMillis();
String time = stampToDate(timeStamp);
Log.d("xxxxx", time);

//获取当前时间
Calendar c = Calendar.getInstance();//可以对每个时间域单独修改
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int date = c.get(Calendar.DATE);