Android中当前日期和输入日期之间的差异
问题描述:
这里我找到输入日期和当前日期之间的差异。我的意思是我试图找到两个日期之间的天数。如果两个日期都在同一个月内,如果日期在不同的月份,我会得到正确的值,但差异值不正确。我没有得到如何纠正这一问题。Android中当前日期和输入日期之间的差异
任何人都可以帮助我得到这个吗?
这是我的代码:
public class MyService extends Service {
String dayDifference;
NotificationManager manager;
Notification myNotication;
@Override public IBinder onBind(Intent intent) {
return null;
}//End of onBind method
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
try {
//Dates to compare
String CurrentDate;
String FinalDate = "08/24/2016";
Date date1 = new Date();
Date date2;
SimpleDateFormat dates = new SimpleDateFormat("mm/dd/yyyy");
//Setting dates
date1.setTime(System.currentTimeMillis());
CurrentDate = dates.format(date1);
date2 = dates.parse(FinalDate);
date1 = dates.parse(CurrentDate);
//Comparing dates
long difference = Math.abs(date1.getTime() - date2.getTime());
long differenceDates = difference/(24 * 60 * 60 * 1000);
//Convert long to String
dayDifference = Long.toString(differenceDates);
Log.e("HERE.................", "HERE: " + dayDifference);
System.out.println("..............difference date " + dayDifference);
Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Intent targetIntent = new Intent(this, Mnst.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 1, targetIntent, 0);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
builder.setAutoCancel(true);
builder.setTicker("Predictor");
builder.setContentTitle("Miisky Notification");
builder.setContentText(
"You have " + dayDifference + " days left. Click on notification to know more..");
builder.setSmallIcon(R.drawable.miilogo);
builder.setSound(soundUri);
builder.setContentIntent(pendingIntent);
builder.setOngoing(true);
//builder.setSubText("Your vault number is " + s.vault_no); //API level 16
builder.setNumber(100);
builder.build();
//noinspection deprecation
myNotication = builder.getNotification();
builder.setAutoCancel(true);
manager.notify(11, myNotication);
Toast.makeText(getApplicationContext(), " " + dayDifference + " Days Left ",
Toast.LENGTH_LONG).show();
} catch (Exception exception) {
Log.e("DIDN'T WORK............", "exception " + exception);
}
}
}
这里输入的日期是“2016年8月24日”和当前日期是“2016年9月28日”。我得到4结果是不正确的。我认为我必须使用日历或东西,但没有得到确切的方式来做那个..
答
根据documentation信m
被理解为小时分钟。为了引用月份,您需要使用大写M
。
尝试改变你的SimpleDateFormat
这样:
SimpleDateFormat dates = new SimpleDateFormat("MM/dd/yyyy");
答
不要使用日期做this.Try使用日历这样。
public static final int diffOfDay(Date d1,Date d2){
Calendar c1 = Calendar.getInstance();
c1.setTime(d1);
Calendar c2 = Calendar.getInstance();
c2.setTime(d2);
return c1.get(Calendar.DAY_OF_MONTH) - c2.get(Calendar.DAY_OF_MONTH);
}
+0
将调查它.. –
答
我有同样的问题。
变化
return c1.get(Calendar.DAY_OF_MONTH) - c2.get(Calendar.DAY_OF_MONTH);
以获取日期的差异与不同的月份
return c1.get(Calendar.DAY_OF_YEAR) - c2.get(Calendar.DAY_OF_YEAR);
看到这个链接http://*.com/questions/21285161/android-difference-between-two-dates –
我使用这种格式mm/dd/yyyy ..并且我没有使用hh:mm:ss ..但是在那个链接中,它计算基于小时数的天..我没有使用hh:mm:ss。 –