Android中當前日期和過去日期的日期差計時器

Question

我正在努力使當前日期和過去日期有所不同，而現在我已經很完美了。 但是我想要的是計時器，如果我的當前時間是1:02，過去的時間是12:02，那么計時器應該給我這樣的結果：01:02:02，01:00:03，01:00 ：03,01：00：04。 我知道這不是那么復雜的問題，但是我無法找到解決方案。 現在我正在工作的代碼如下：

        try {
                Date currentSystemClockTime = new Date(System.currentTimeMillis());

                long diff = currentSystemClockTime() - serverDateTime.getTime();
                long seconds = diff / 1000;
                long minutes = seconds / 60;
                long hours = minutes / 60;
                long days = hours / 24;

                txtTimer.setText(days+"D:"+hours+":"+minutes+":"+seconds+"");

            } catch (Exception e) {
                e.printStackTrace();
            }

提前致謝

Answer 1

我已經解決了我的問題，我在這里為其他人提供答案。 我制作了一種方法，可以與計時器一起計算以天，小時，分鍾和秒為單位的日期差。

日期差的計算方法：

public void checkingCondition(){

        if(ParseUser.getCurrentUser()!=null && ParseUser.getCurrentUser().has("scanTime")){

          final  Date scanDateTime = ParseUser.getCurrentUser().getDate("scanTime");

            Date now = new Date(System.currentTimeMillis());

            try {
                long diff = now.getTime() - scanDateTime.getTime();

                long diffSeconds = diff / 1000 % 60;
                long diffMinutes = diff / (60 * 1000) % 60;
                long diffHours = diff / (60 * 60 * 1000) % 24;
                long diffDays = diff / (24 * 60 * 60 * 1000);

                System.out.print(diffDays + " days, ");
                System.out.print(diffHours + " hours, ");
                System.out.print(diffMinutes + " minutes, ");
                System.out.print(diffSeconds + " seconds.");

                if(diffDays == 0){
                    String hours = "", minutes = "", seconds = "";
                    if(diffHours < 10){
                        hours = "0"+diffHours;
                    }else{
                        hours = ""+diffHours;
                    }
                    if(diffMinutes < 10){
                        minutes = "0"+diffMinutes;
                    }else{
                        minutes = ""+diffMinutes;
                    }
                    if(diffSeconds < 10){
                        seconds = "0"+diffSeconds;
                    }else{
                        seconds = ""+diffSeconds;
                    }
                    txtTimer.setText(hours+":"+minutes+":"+seconds);


                }else{
                    String hours = "", minutes = "", seconds = "";
                    if(diffHours < 10){
                        hours = "0"+diffHours;
                    }else{
                        hours = ""+diffHours;
                    }
                    if(diffMinutes < 10){
                        minutes = "0"+diffMinutes;
                    }else{
                        minutes = ""+diffMinutes;
                    }
                    if(diffSeconds < 10){
                        seconds = "0"+diffSeconds;
                    }else{
                        seconds = ""+diffSeconds;
                    }
                    txtTimer.setText(diffDays+"D "+hours+":"+minutes+":"+seconds);
                }


            } catch (Exception e) {
                e.printStackTrace();
            }

        }
    }

計時器的處理程序方法：

try {
            final Handler timerHandler = new Handler();

            updater = new Runnable() {
                @Override
                public void run() {
                    try {
                        checkingCondition();

                    } catch (Exception exp) {
                        exp.printStackTrace();
                    }
                    timerHandler.postDelayed(updater,500);
                }
            };
            timerHandler.post(updater);
        } catch (Exception exp) {
            exp.printStackTrace();
        }