Android: Wie kann man einen Timer für den Down -Timer innehalten und fortsetzen?

Question

Ich habe einen Count -Down -Timer entwickelt und bin mir nicht sicher, wie ich den Timer als Textansicht für den Timer innehalten und wieder aufnehmen soll. Klicken Sie, um zu starten, dann klicken Sie erneut, um zu pausieren und um wieder aufzunehmen. Klicken Sie erneut auf die Textansicht des Timers.

Dies ist mein Code:

    Timer = (TextView) this.findViewById(R.id.time); //TIMER  
    Timer.setOnClickListener(TimerClickListener);
    counter = new MyCount(600000, 1000);
}//end of create 

private OnClickListener TimerClickListener = new OnClickListener() {
    public void onClick(View v) {
        updateTimeTask();
    }

    private void updateTimeTask() {
        if (decision == 0) {
            counter.start();
            decision = 1;
        } else if (decision == 2) {
            counter.onResume1();
            decision = 1;
        } else {
            counter.onPause1();
            decision = 2;
        }//end if  
    }

    ;
};

class MyCount extends CountDownTimer {
    public MyCount(long millisInFuture, long countDownInterval) {
        super(millisInFuture, countDownInterval);
    }//MyCount  

    public void onResume1() {
        onResume();
    }

    public void onPause1() {
        onPause();
    }

    public void onFinish() {
        Timer.setText("00:00");
        p1++;
        if (p1 <= 4) {
            TextView PScore = (TextView) findViewById(R.id.pscore);
            PScore.setText(p1 + "");
        }//end if  
    }//finish  

    public void onTick(long millisUntilFinished) {
        Integer milisec = new Integer(new Double(millisUntilFinished).intValue());
        Integer cd_secs = milisec / 1000;

        Integer minutes = (cd_secs % 3600) / 60;
        Integer seconds = (cd_secs % 3600) % 60;

        Timer.setText(String.format("%02d", minutes) + ":"
                + String.format("%02d", seconds));
        ///long timeLeft = millisUntilFinished / 1000;  
        /}//on tick  
}//class MyCount  

protected void onResume() {
    super.onResume();
    //handler.removeCallbacks(updateTimeTask);  
    //handler.postDelayed(updateTimeTask, 1000);  
}//onResume  

@Override
protected void onPause() {
    super.onPause();
    //do stuff  
}//onPause  

Answer 1

/*
 * Copyright (C) 2010 Andrew Gainer
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// Adapted from Android's CountDownTimer class

package com.cycleindex.multitimer;

import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;

/**
 * Schedule a countdown until a time in the future, with
 * regular notifications on intervals along the way.
 *
  * The calls to {@link #onTick(long)} are synchronized to this object so that
 * one call to {@link #onTick(long)} won't ever occur before the previous
 * callback is complete.  This is only relevant when the implementation of
 * {@link #onTick(long)} takes an amount of time to execute that is significant
 * compared to the countdown interval.
 */
public abstract class CountDownTimerWithPause {

    /**
     * Millis since boot when alarm should stop.
     */
  private long mStopTimeInFuture;

  /**
   * Real time remaining until timer completes
   */
    private long mMillisInFuture;

    /**
     * Total time on timer at start
     */
    private final long mTotalCountdown;

    /**
     * The interval in millis that the user receives callbacks
     */
    private final long mCountdownInterval;

    /**
     * The time remaining on the timer when it was paused, if it is currently paused; 0 otherwise.
     */
    private long mPauseTimeRemaining;

    /**
     * True if timer was started running, false if not.
     */
    private boolean mRunAtStart;

    /**
     * @param millisInFuture The number of millis in the future from the call
     *   to {@link #start} until the countdown is done and {@link #onFinish()}
     *   is called
     * @param countDownInterval The interval in millis at which to execute
     *   {@link #onTick(millisUntilFinished)} callbacks
     * @param runAtStart True if timer should start running, false if not
     */
    public CountDownTimerWithPause(long millisOnTimer, long countDownInterval, boolean runAtStart) {
        mMillisInFuture = millisOnTimer;
        mTotalCountdown = mMillisInFuture;
        mCountdownInterval = countDownInterval;
        mRunAtStart = runAtStart;
    }

    /**
     * Cancel the countdown and clears all remaining messages
     */
    public final void cancel() {
        mHandler.removeMessages(MSG);
    }

    /**
     * Create the timer object.
     */
    public synchronized final CountDownTimerWithPause create() {
        if (mMillisInFuture <= 0) {
            onFinish();
        } else {
          mPauseTimeRemaining = mMillisInFuture;
        }

        if (mRunAtStart) {
          resume();
        }

        return this;
    }

    /**
     * Pauses the counter.
     */
  public void pause () {
    if (isRunning()) {
      mPauseTimeRemaining = timeLeft();
      cancel();
    }
  }

  /**
   * Resumes the counter.
   */
  public void resume () {
    if (isPaused()) {
      mMillisInFuture = mPauseTimeRemaining;
      mStopTimeInFuture = SystemClock.elapsedRealtime() + mMillisInFuture;
          mHandler.sendMessage(mHandler.obtainMessage(MSG));
      mPauseTimeRemaining = 0;
    }
  }

  /**
   * Tests whether the timer is paused.
   * @return true if the timer is currently paused, false otherwise.
   */
  public boolean isPaused () {
    return (mPauseTimeRemaining > 0);
  }

  /**
   * Tests whether the timer is running. (Performs logical negation on {@link #isPaused()})
   * @return true if the timer is currently running, false otherwise.
   */
  public boolean isRunning() {
    return (! isPaused());
  }

  /**
   * Returns the number of milliseconds remaining until the timer is finished
   * @return number of milliseconds remaining until the timer is finished
   */
  public long timeLeft() {
    long millisUntilFinished;
    if (isPaused()) {
      millisUntilFinished = mPauseTimeRemaining;
    } else {
      millisUntilFinished = mStopTimeInFuture - SystemClock.elapsedRealtime();
      if (millisUntilFinished < 0) millisUntilFinished = 0;
    }
    return millisUntilFinished;
  }

  /**
   * Returns the number of milliseconds in total that the timer was set to run
   * @return number of milliseconds timer was set to run
   */
  public long totalCountdown() {
    return mTotalCountdown;
  }

  /**
   * Returns the number of milliseconds that have elapsed on the timer.
   * @return the number of milliseconds that have elapsed on the timer.
   */
  public long timePassed() {
    return mTotalCountdown - timeLeft();
  }

  /**
   * Returns true if the timer has been started, false otherwise.
   * @return true if the timer has been started, false otherwise.
   */
  public boolean hasBeenStarted() {
    return (mPauseTimeRemaining <= mMillisInFuture);
  }

    /**
     * Callback fired on regular interval
     * @param millisUntilFinished The amount of time until finished
     */
    public abstract void onTick(long millisUntilFinished);

    /**
     * Callback fired when the time is up.
     */
    public abstract void onFinish();


    private static final int MSG = 1;


    // handles counting down
    private Handler mHandler = new Handler() {

        @Override
        public void handleMessage(Message msg) {

            synchronized (CountDownTimerWithPause.this) {
                long millisLeft = timeLeft();

                if (millisLeft <= 0) {
                    cancel();
                  onFinish();
                } else if (millisLeft < mCountdownInterval) {
                    // no tick, just delay until done
                    sendMessageDelayed(obtainMessage(MSG), millisLeft);
                } else {
                    long lastTickStart = SystemClock.elapsedRealtime();
                    onTick(millisLeft);

                    // take into account user's onTick taking time to execute
                    long delay = mCountdownInterval - (SystemClock.elapsedRealtime() - lastTickStart);

                    // special case: user's onTick took more than mCountdownInterval to
                    // complete, skip to next interval
                    while (delay < 0) delay += mCountdownInterval;

                    sendMessageDelayed(obtainMessage(MSG), delay);
                }
            }
        }
    };
}

Quelle : Dieser Kern.

Answer 2

Eine schöne und einfache Möglichkeit, eine Pause/einen Lebenslauf für Ihren Countdowntimer zu erstellen, besteht darin, eine separate Methode für Ihren Timer zu erstellen Anfang, Pause und fortsetzen folgendermaßen:

public void timerStart(long timeLengthMilli) {
        timer = new CountDownTimer(timeLengthMilli, 1000) {

            @Override
            public void onTick(long milliTillFinish) {
                milliLeft=milliTillFinish;
                min = (milliTillFinish/(1000*60));
                sec = ((milliTillFinish/1000)-min*60);
                clock.setText(Long.toString(min)+":"+Long.toString(sec));
                Log.i("Tick", "Tock");
            }
         }
         timer.start();

Der TimerStart hat einen langen Parameter, da er von der wiederverwendet wird fortsetzen() Methode unten. Denken Sie daran, Ihre zu speichern Millitillfinished (oben als Millileft), damit Sie es in Ihrem durchsenden können fortsetzen() Methode. Pause und wieder aufnehmen Methoden unten:

public void timerPause() {
        timer.cancel();
    }

    private void timerResume() {
        Log.i("min", Long.toString(min));
        Log.i("Sec", Long.toString(sec));
        timerStart(milliLeft);
    }

Hier ist der Code für die FYI -Schaltfläche:

startPause.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(startPause.getText().equals("Start")){
                    Log.i("Started", startPause.getText().toString());
                    startPause.setText("Pause");
                    timerStart(15*1000);
                } else if (startPause.getText().equals("Pause")){
                    Log.i("Paused", startPause.getText().toString());
                    startPause.setText("Resume");
                    timerPause();
                } else if (startPause.getText().equals("Resume")){
                    startPause.setText("Pause");
                    timerResume();
                }

Answer 3

Nun, es gibt keine API, um sie zu pausieren oder wieder aufzunehmen. Was Sie tun sollten, ist cancel() Der Timer und speichern die verbleibende Zeit in einer Variablen. Wenn die Taste des Lebenslaufs erneut gedrückt wird, starten Sie den Timer mit dem Wert aus der Variablen neu.

---

Du weisst Chronometer kann für Sie von Interesse sein.

Answer 4

Sie können versuchen, eine Bibliothek zu verwenden, die ich erstellt habe. Sanduhr

Hourglass hourglass = new Hourglass(50000, 1000) {
        @Override
        public void onTimerTick(long timeRemaining) {
            // Update UI
            Toast.show(MainActivity.this, String.valueOf(timeRemaining), Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onTimerFinish() {
            // Timer finished
            Toast.show(MainActivity.this, "Timer finished", Toast.LENGTH_SHORT).show();


        }
    };

Verwenden hourglass.startTimer(); um den Timer zu starten.

Es verfügt über Helfermethoden, die den Timer innehalten und wieder aufnehmen können.

hourglass.pauseTimer();

UND

hourglass.resumeTimer();

Answer 5

Ich habe eine einfache Lösung. Sie müssen lediglich eine zusätzliche Variable hinzufügen, die die aktuelle Zeit speichert. Die einzige Ergänzung ist CurrentMillis oben und in Ontick (). Verwenden Sie Cancel () zur Pause.
PS: Ich verwende die Butterknife -Bibliothek, sie wird verwendet, um die Verwendung von FindViewById und SetonClickListenern zu vermeiden. Wenn Sie es nicht verwenden möchten, können Sie einfach die grundlegende Möglichkeit zum Einstellen von Hörern und FindViewById verwenden.

@BindView(R.id.play_btn) ImageButton play;
@BindView(R.id.pause_btn) ImageButton pause;
@BindView(R.id.close_btn) ImageButton close;
@BindView(R.id.time) TextView time;
private CountDownTimer countDownTimer;
private long currentMillis=10;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_game);
    ButterKnife.bind(this);
}

@OnClick(R.id.play_btn) void play_game(){
    this.play();
}

@OnClick(R.id.pause_btn) void pause_game(){
    this.pause();
}

@OnClick(R.id.close_btn) void close_game(){
    this.close();
}

void play(){
    play.setVisibility(View.GONE);
    close.setVisibility(View.GONE);
    pause.setVisibility(View.VISIBLE);

    time.setText(""+currentMillis);
    countDownTimer = new CountDownTimer(currentMillis*1000,1000) {

        @Override
        public void onTick(long millisUntilFinish) {
            currentMillis=millisUntilFinish/1000;
            time.setText(""+millisUntilFinish/1000);
        }

        @Override
        public void onFinish() {
            time.setText("Done!");
        }
    };

    countDownTimer.start();
}

void pause(){
    play.setVisibility(View.VISIBLE);
    close.setVisibility(View.VISIBLE);
    pause.setVisibility(View.GONE);
    countDownTimer.cancel();
}

void close(){
    if(countDownTimer!=null){
        countDownTimer.cancel();
        countDownTimer=null;
    }
    Intent intent = new Intent(this,MainActivity.class);
    startActivity(intent);
}

}

Answer 6

    public static void setTimerMillis(Context context, long millis)
 { SharedPreferences sp = 
context.getSharedPreferences(SessionManager.FILE_USER, Context.MODE_PRIVATE); 
SharedPreferences.Editor spe = sp.edit(); spe.putLong(SessionManager.TIMER_MILLIS, millis); spe.apply(); }



       void setExamTimer() {
            setTimerColors();
            final long maxTimeToShow = 60000;            //testing
            final long lastTimeinMillisLeftSaved = TestyBookHelper.getTimerMillis(context); //take saved value from sharedpref
            final long intervalTime = 1000;
            donut_exam_timer.setMax((int) maxTimeToShow);
            CountDownTimer countDownTimer = new CountDownTimer(lastTimeinMillisLeftSaved, intervalTime) {
                @Override
                public void onTick(long millis) {
                    TestyBookHelper.setTimerMillis(context, millis);
                    String hms = String.format("%02d:%02d:%02d", TimeUnit.MILLISECONDS.toHours(millis),
                            TimeUnit.MILLISECONDS.toMinutes(millis) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)),
                            TimeUnit.MILLISECONDS.toSeconds(millis) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));               System.out.println(hms);
                    donut_exam_timer.setText(hms);
                    donut_exam_timer.setProgress(millis);
                }
                @Override
                public void onFinish() {
                }
            };
            countDownTimer.start();
        }

  public static long getTimerMillis(Context context) {
    SharedPreferences sp = context.getSharedPreferences(SessionManager.FILE_USER, Context.MODE_PRIVATE);
    return sp.getLong(SessionManager.TIMER_MILLIS, 60000L);}