У меня есть таймер, который я хочу запустить, как только он достигнет 0.
Сброс таймера в onFinish () кажется медленнее, чем ручной сброс таймера с помощью кнопки сброса таймера.
Когда таймер завершает работу, он не перезапускается, пока "0" не покажет в течение секунды (возможно, в конце тика), эффективно добавляя дополнительную секунду к таймеру, который мне не нужен.
Как сделать так, чтобы таймер перезагружался, когда на дисплее отображается «0»?
Импорт и фрагмент
package com.example.datacollector;
import android.content.Context;
import android.content.SharedPreferences;
import android.media.AudioManager;
import android.media.ToneGenerator;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.TextView;
import android.widget.EditText;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import java.util.Locale;
public class fragmentdro extends Fragment {
private EditText session_edit_text;
private EditText dro_edit_text;
private TextView session_text_view;
private TextView dro_text_view;
private Button session_start_button;
private Button dro_start_button;
private Button session_reset_button;
private Button dro_reset_button;
private Button session_set_button;
private Button dro_set_button;
private CountDownTimer sessionTimer;
private CountDownTimer droTimer;
private boolean SessionTimerRunning;
private boolean DROTimerRunning;
private long SessionStartTimeInMillis;
private long DROStartTimeInMillis;
private long SessionTimeLeftInMillis = SessionStartTimeInMillis;
private long DROTimeLeftInMillis = DROStartTimeInMillis;
private long SessionEndTime;
private long DROEndTime;
View View;
public View onCreateView(@NonNull LayoutInflater inflater, @NonNull ViewGroup container, @NonNull Bundle savedInstanceState) {
View = inflater.inflate(R.layout.dro_fragment, container, false);
session_edit_text = View.findViewById(R.id.session_edit_text);
dro_edit_text = View.findViewById(R.id.dro_edit_text);
session_text_view = View.findViewById(R.id.session_text_view);
dro_text_view = View.findViewById(R.id.dro_text_view);
session_start_button = View.findViewById(R.id.session_start_button);
dro_start_button = View.findViewById(R.id.dro_start_button);
session_reset_button = View.findViewById(R.id.session_reset_button);
dro_reset_button = View.findViewById(R.id.dro_reset_button);
session_set_button = View.findViewById(R.id.session_set_button);
dro_set_button = View.findViewById(R.id.dro_set_button);
InputMethodManager imm = (InputMethodManager)getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
ToneGenerator toneGenerator = new ToneGenerator(AudioManager.STREAM_ALARM, 100);
Кнопки
dro_set_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(android.view.View view) {
String DROinput = dro_edit_text.getText().toString();
if (DROinput.length() == 0) {
Toast.makeText(getActivity(), "Fill it in", Toast.LENGTH_SHORT).show();
return;
}
long millisInput = Long.parseLong(DROinput) * 1000;
if (millisInput == 0) {
Toast.makeText(getActivity(), "Please enter a positive number", Toast.LENGTH_SHORT).show();
return;
}
setDROTime(millisInput);
dro_edit_text.setText("");
imm.hideSoftInputFromWindow(getView().getWindowToken(), 0);
}
});
dro_start_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(android.view.View view) {
if (DROTimerRunning) {
pauseDROTimer();
} else {
startDROTimer();
}
}
});
dro_reset_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(android.view.View view) {
if (DROTimerRunning) {
resetDROTimer();
} else {
resetDROTimer();
}
}
});
return View;
}
Таймер
public void setDROTime(long milliseconds) {
DROStartTimeInMillis = milliseconds;
resetDROTimer();
}
public void startDROTimer() {
DROEndTime = System.currentTimeMillis() + DROTimeLeftInMillis;
final int[] secondsLeft = {0};
droTimer = new CountDownTimer(DROTimeLeftInMillis, 100) {
@Override
public void onTick(long ms) {
if (Math.round((float)ms/1000.0f) != secondsLeft[0])
{
secondsLeft[0] = (int) (Math.round((float)ms)/1000.0f);
}
DROTimeLeftInMillis = ms;
updateDROText();
}
@Override
public void onFinish() {
dro_text_view.setText("0");
DROTimerRunning = false;
DROTimeLeftInMillis = DROStartTimeInMillis + 1000;
updateDROText();
updateDROInterface();
startDROTimer();
}
}.start();
DROTimerRunning = true;
dro_start_button.setText("Pause");
}
public void pauseDROTimer() {
droTimer.cancel();
DROTimerRunning = false;
dro_start_button.setText("Start");
updateDROText();
}
public void resetDROTimer() {
if (DROTimerRunning) {
droTimer.cancel();
DROTimeLeftInMillis = (DROStartTimeInMillis + 1000);
updateDROInterface();
startDROTimer();
} else {
DROTimeLeftInMillis = (DROStartTimeInMillis);
updateDROText();
updateDROInterface();
dro_reset_button.setVisibility(android.view.View.VISIBLE);
dro_start_button.setVisibility(android.view.View.VISIBLE);
}
}
public void updateDROText() {
int seconds = (int) (DROTimeLeftInMillis/1000)%60;
String timeLeftFormatted = String.format(Locale.getDefault(),
timeLeftFormatted = String.format(Locale.getDefault(), ":%02d", seconds));
dro_text_view.setText(timeLeftFormatted);
}
public void updateDROInterface() {
if (DROTimerRunning) {
dro_edit_text.setVisibility(android.view.View.INVISIBLE);
dro_set_button.setVisibility(android.view.View.INVISIBLE);
dro_reset_button.setVisibility(android.view.View.VISIBLE);
dro_start_button.setText("Pause");
} else {
dro_edit_text.setVisibility(android.view.View.VISIBLE);
dro_set_button.setVisibility(android.view.View.VISIBLE);
dro_reset_button.setVisibility(android.view.View.VISIBLE);
dro_start_button.setText("Start");
}
}
Prefs
@Override
public void onStop() {
super.onStop();
SharedPreferences preferences = this.getActivity().getSharedPreferences("prefs", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();
editor.putLong("SessionStartTimeInMillis", SessionStartTimeInMillis);
editor.putLong("DROStartTimeInMillis", DROStartTimeInMillis);
editor.putLong("MillisLeft", SessionTimeLeftInMillis);
editor.putLong("DROMillisLeft", DROTimeLeftInMillis);
editor.putBoolean("TimerRunning", SessionTimerRunning);
editor.putBoolean("DROTimerRunning", DROTimerRunning);
editor.putLong("EndTime", SessionEndTime);
editor.putLong("DROEndTime", DROEndTime);
if (sessionTimer !=null); {
sessionTimer.cancel();
}
}
@Override
public void onStart() {
super.onStart();
SharedPreferences preferences = this.getActivity().getSharedPreferences("prefs", Context.MODE_PRIVATE);
SessionStartTimeInMillis = preferences.getLong("SessionStartTimeInMillis", 0);
SessionTimeLeftInMillis = preferences.getLong("MillisLeft", SessionTimeLeftInMillis);
SessionTimerRunning = preferences.getBoolean("TimerRunning", false);
DROStartTimeInMillis = preferences.getLong("DROStartTimeInMillis", 0);
DROTimeLeftInMillis = preferences.getLong("DROMillisLeft", DROTimeLeftInMillis);
DROTimerRunning = preferences.getBoolean("DROTimerRunning", false);
updateSessionText();
updateSessionInterface();
updateDROText();
updateDROInterface();
if (SessionTimerRunning) {
SessionEndTime = preferences.getLong("EndTime", 0);
SessionTimeLeftInMillis = SessionEndTime - System.currentTimeMillis();
if (SessionTimeLeftInMillis <0) {
SessionTimeLeftInMillis = 0;
SessionTimerRunning = false;
} else {
startSessionTimer();
}
}
if (DROTimerRunning) {
DROEndTime = preferences.getLong("EndTime", 0);
DROTimeLeftInMillis = DROEndTime - System.currentTimeMillis();
if (DROTimeLeftInMillis <0) {
DROTimeLeftInMillis = 0;
ToneGenerator toneGenerator = new ToneGenerator(AudioManager.STREAM_ALARM, 200);
toneGenerator.startTone(ToneGenerator.TONE_CDMA_ALERT_CALL_GUARD, 100);
DROTimerRunning = false;
} else {
startDROTimer();
}
}
}
}