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イベントへのカウントダウンクロックを表示するだけのこのコードがあります。通常の時計とは異なり、最後の秒の桁のジャンプに関して問題があります。これが私が使っているコードです。誰かがこの問題がどこにあるかについてのガイダンスを提供してもらえますか？敬具。

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    new Timer().schedule(new TimerTask() {

        File sdcard = Environment.getExternalStorageDirectory();
        File cfgFile = new File(sdcard, "TimeTillParis/config.txt");

        @Override
        public void run() {
            runOnUiThread(new Runnable() {
                public void run() {

                try {
                    InputStream is = new FileInputStream(cfgFile);
                    Properties prop = new Properties();
                    prop.load(is);

                    int mmY = Integer.parseInt(prop.getProperty("YEAR"));
                    int mmM = Integer.parseInt(prop.getProperty("MONTH"));
                    int mmD = Integer.parseInt(prop.getProperty("DAY"));
                    int mmH = Integer.parseInt(prop.getProperty("HOUR"));
                    int mmC = Integer.parseInt(prop.getProperty("MINUTE"));
                    int mmS = Integer.parseInt(prop.getProperty("SECOND"));

                    Calendar cal = Calendar.getInstance();
                    Date today = new Date(System.currentTimeMillis());

                    cal.set(Calendar.YEAR, mmY);
                    cal.set(Calendar.MONTH, mmM);
                    cal.set(Calendar.DAY_OF_MONTH, mmD);
                    cal.set(Calendar.HOUR_OF_DAY, mmH);
                    cal.set(Calendar.MINUTE, mmC);
                    cal.set(Calendar.SECOND, mmS);

                    long milliseconds = (cal.getTimeInMillis() - today.getTime());

                    String mD="", mH="", mM="", mS="", boxText="";

                    mD += (milliseconds / (1000*60*60*24));
                    mH += (milliseconds / (1000*60*60) % 24);
                    mM += (milliseconds / (1000*60) % 60);
                    mS += (milliseconds / 1000 % 60);

                    boxText += "Next visit to Paris in \n\n" +
                                mD + "d   " + 
                                mH + "h   " + 
                                mM + "m   " + 
                                mS + "s";

                    TextView textView = (TextView) findViewById(R.id.textView_date_display);
                    textView.setText(boxText);

                } catch (FileNotFoundException e) {
                    String cfgNotFound="";
                    cfgNotFound += "config.txt not found!";
                    TextView textView = (TextView) findViewById(R.id.textView_date_display);
                    textView.setText(cfgNotFound);
                    //e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }

                }
            });
        }
    }, 0, 100);

}

}

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1 に答える 1

1

私は完全な解決策を用意しました。質問がある場合はお知らせください。

public class MainActivity extends Activity {

    private static final int COUNTDOWN_INTERVAL = 1000;

    MyTimer timer;

    Calendar eventTime;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        File sdcard = Environment.getExternalStorageDirectory();
        File cfgFile = new File(sdcard, "TimeTillParis/config.txt");

        try {
            InputStream is = new FileInputStream(cfgFile);
            Properties prop = new Properties();
            prop.load(is);

            int mmY = Integer.parseInt(prop.getProperty("YEAR"));
            int mmM = Integer.parseInt(prop.getProperty("MONTH"));
            int mmD = Integer.parseInt(prop.getProperty("DAY"));
            int mmH = Integer.parseInt(prop.getProperty("HOUR"));
            int mmC = Integer.parseInt(prop.getProperty("MINUTE"));
            int mmS = Integer.parseInt(prop.getProperty("SECOND"));

            Calendar cal = Calendar.getInstance();

            cal.set(Calendar.YEAR, mmY);
            cal.set(Calendar.MONTH, mmM);
            cal.set(Calendar.DAY_OF_MONTH, mmD);
            cal.set(Calendar.HOUR_OF_DAY, mmH);
            cal.set(Calendar.MINUTE, mmC);
            cal.set(Calendar.SECOND, mmS);

            eventTime = cal;

        } catch (FileNotFoundException e) {
            String cfgNotFound="";
            cfgNotFound += "config.txt not found!";
            TextView textView = (TextView) findViewById(R.id.textView_date_display);
            textView.setText(cfgNotFound);
            //e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    @Override
    protected void onResume() {
        super.onResume();
        if(eventTime != null) {
            long millisInFuture = (eventTime.getTimeInMillis() - System.currentTimeMillis());
            timer = new MyTimer(this, millisInFuture, COUNTDOWN_INTERVAL);
            timer.start();
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        if(timer != null) {
            timer.cancel();
        }
    }

    private static class MyTimer extends CountDownTimer {

        TextView textView;

        public MyTimer(Activity actitivy, long millisInFuture, long countDownInterval) {
            super(millisInFuture, countDownInterval);
            // findViewById is very expansive, so fined it only once
            textView = (TextView) actitivy.findViewById(R.id.textView_date_display);
        }

        @Override
        public void onFinish() {

        }

        @Override
        public void onTick(long millisUntilFinished) {
            SimpleDateFormat sdf = new SimpleDateFormat("'Next visit to Paris in \n\n'd'd   'h'h   'm'm   's's'");
            String boxText = sdf.format(new Date(millisUntilFinished));

            textView.setText(boxText);
        }

    }
}
于 2013-03-10T17:07:46.867 に答える