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2つの時間の時差

2つの時間の差をhh:mm形式で表示したい。

1回目はデータベースからのもので、2回目はシステム時間です。時差は毎秒更新されます。

どうやってやるの?

現在、2つの手動時間を使用しています。これが完全に機能する場合は、アプリに実装します。

public class MainActivity extends Activity 
{
    TextView mytext;
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Timer updateTimer = new Timer();
        updateTimer.schedule(new TimerTask() 
        {
            public void run() 
            {
                try 
                {
                    TextView txtCurrentTime= (TextView)findViewById(R.id.mytext);
                    SimpleDateFormat format = new SimpleDateFormat("hh:mm:ss aa");
                    Date date1 = format.parse("08:00:12 pm");
                    Date date2 = format.parse("05:30:12 pm");
                    long mills = date1.getTime() - date2.getTime();
                    Log.v("Data1", ""+date1.getTime());
                    Log.v("Data2", ""+date2.getTime());
                    int hours = (int) (mills/(1000 * 60 * 60));
                    int mins = (int) (mills % (1000*60*60));

                    String diff = hours + ":" + mins; // updated value every1 second
                    txtCurrentTime.setText(diff);
                } 
                catch (Exception e) 
                {
                    e.printStackTrace();
                }
            }

        }, 0, 1000);
    }
}
21
Niks

2つの日付の差を計算するには、次のようなものを試すことができます。

long mills = date1.getTime() - date2.getTime();
int hours = millis/(1000 * 60 * 60);
int mins = (mills/(1000*60)) % 60;

String diff = hours + ":" + mins; 

1秒ごとに時差を更新するには、タイマーを使用できます。

Timer updateTimer = new Timer();
updateTimer.schedule(new TimerTask() {
    public void run() {
        try {
            long mills = date1.getTime() - date2.getTime();
                int hours = millis/(1000 * 60 * 60);
                 int mins = (mills/(1000*60)) % 60;

                 String diff = hours + ":" + mins; // updated value every1 second
            } catch (Exception e) {
            e.printStackTrace();
        }
    }

}, 0, 1000); // here 1000 means 1000 mills i.e. 1 second

編集:作業コード:

public class MainActivity extends Activity {

    private TextView txtCurrentTime;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        txtCurrentTime= (TextView)findViewById(R.id.mytext);
        Timer updateTimer = new Timer();
        updateTimer.schedule(new TimerTask() 
        {
            public void run() 
            {
                try 
                {

                    SimpleDateFormat format = new SimpleDateFormat("hh:mm:ss aa");
                    Date date1 = format.parse("08:00:12 pm");
                    Date date2 = format.parse("05:30:12 pm");
                    long mills = date1.getTime() - date2.getTime();
                    Log.v("Data1", ""+date1.getTime());
                    Log.v("Data2", ""+date2.getTime());
                    int hours = (int) (mills/(1000 * 60 * 60));
                    int mins = (int) (mills/(1000*60)) % 60;

                    String diff = hours + ":" + mins; // updated value every1 second
                    txtCurrentTime.setText(diff);
                } 
                catch (Exception e) 
                {
                    e.printStackTrace();
                }
            }

        }, 0, 1000);
    }
34
Sanober Malik

ついにやった.

package com.timedynamicllyupdate;

import Java.text.SimpleDateFormat;
import Java.util.Calendar;
import Java.util.Date;
import Android.os.Bundle;
import Android.app.Activity;
import Android.view.Menu;
import Android.widget.TextView;

public class MainActivity extends Activity 
{
    TextView current;
    private TextView txtCurrentTime;
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Thread myThread = null;
        Runnable myRunnableThread = new CountDownRunner();
        myThread= new Thread(myRunnableThread);   
        myThread.start();

        current= (TextView)findViewById(R.id.current);
    }


    public void doWork() 
    {
        runOnUiThread(new Runnable() 
        {
            public void run() 
            {
                try
                {
                    SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss aa");

                    txtCurrentTime= (TextView)findViewById(R.id.mytext);

                    Date systemDate = Calendar.getInstance().getTime();
                    String myDate = sdf.format(systemDate);
//                  txtCurrentTime.setText(myDate);

                    Date Date1 = sdf.parse(myDate);
                    Date Date2 = sdf.parse("02:50:00 pm");

                    long millse = Date1.getTime() - Date2.getTime();
                    long mills = Math.abs(millse);

                    int Hours = (int) (mills/(1000 * 60 * 60));
                    int Mins = (int) (mills/(1000*60)) % 60;
                    long Secs = (int) (mills / 1000) % 60;

                    String diff = Hours + ":" + Mins + ":" + Secs; // updated value every1 second
                    current.setText(diff);
                }
                catch (Exception e) 
                {

                }
            }
        });
    }

    class CountDownRunner implements Runnable
    {
        // @Override
        public void run() 
        {
            while(!Thread.currentThread().isInterrupted())
            {
                try 
                {
                    doWork();
                    Thread.sleep(1000); // Pause of 1 Second
                } 
                catch (InterruptedException e) 
                {
                        Thread.currentThread().interrupt();
                }
                catch(Exception e)
                {
                }
            }
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) 
    {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

}
8
Niks

プロセスはおおよそ次のとおりです。

  1. 次の方法で文字列インスタンスを日付インスタンスに変換します

    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
    Date date = format.parse("2011-01-03");
    
  2. あなたが持っているsystemTimeがepocからミリ秒を表す長いと仮定すると、次のことができるようになりました

    long difference = longNow - date.getTime();
    int msPerHour = 1000*60*60;
    int hours = difference/secondPerHour;
    int minutes = difference % secondPerHour;
    

    ここで、longNowはシステム時間を含む現在の変数です。

2
JustDanyul

OK私はあなたのためにここで機能を構築します:

 public void omriFunction(){
    Date Start = null;
    Date End = null;
    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm");
    try {
        Start = simpleDateFormat.parse(04+":"+30);
        End = simpleDateFormat.parse(06+":"+45);}
    catch(ParseException e){
        //Some thing if its not working
    }

    long difference = End.getTime() - Start.getTime();
    int days = (int) (difference / (1000*60*60*24));
    int hours = (int) ((difference - (1000*60*60*24*days)) / (1000*60*60));
    int min = (int) (difference - (1000*60*60*24*days) - (1000*60*60*hours)) / (1000*60);
    if(hours < 0){
        hours+=24;
    }if(min < 0){
        float  newone = (float)min/60 ;
        min +=60;
        hours =(int) (hours +newone);}
    String c = hours+":"+min;
    Log.d("ANSWER",c);}

答え:2:15; logcatで

1
omri lugasi
Date currentTime = parseDate("11:27:20 AM");
Date endTime = parseDate("10:30:01 AM");

if (endTime.before(currentTime))
{
    Log.e("Time :","===> is before from current time");
}

if (endTime.after(currentTime))
{
    Log.e("Time :","===> is after from current time");
}



private Date parseDate(String date)
{
    String inputFormat = "hh:mm:ss aa";
    SimpleDateFormat inputParser = new SimpleDateFormat(inputFormat, Locale.US);
    try {
        return inputParser.parse(date);
    } catch (Java.text.ParseException e) {
        return new Date(0);
    }
}
1
Coldfin Lab

こんにちはGuysは、私が何を間違っていたのかわかりませんが、これは私を助けてくれました。

私の最小値はフロート形式で計算されていたため、この式を使用しました

long Min = time %  (1000*60*60)/(60*1000);
time is my date2.getTime() - date1.getTime();

ハッピーコーディング

0
DrDroid

トレイ2つの時間で異なる時間と分を取得する次のコード:

private static int getHoursDiff(Calendar c1, Calendar c2) {
            Date d1 = c1.getTime();
            Date d2 = c2.getTime();
            long mils = d1.getTime() - d2.getTime();
            int hourDiff = (int) (mils / (1000 * 60 * 60));
            return hourDiff;
        }

        private static int getMinuteDiff(Calendar c1, Calendar c2) {
            Date d1 = c1.getTime();
            Date d2 = c2.getTime();
            long mils = d1.getTime() - d2.getTime();
            int minuteFor = (int) (mils / (1000 * 60) % 60);
            return minuteFor;
        } }
0
Popal