单击通知后重新启动应用程序

Question

我的应用程序出现了下一个问题。我为闹钟创建了通知，并在设置闹钟时显示通知。在应用程序中我有2个按钮，保存和取消。这些按钮处于相同位置，取消按钮不可见，单击保存后，保存按钮隐藏，取消按钮可见。但我有一个问题，因为当我从通知按钮启动我的应用程序时，默认配置。我的意思是即使设置了警报，取消按钮也是不可见的。我试图使用来自另一个线程的解决方案，但那不起作用（清单中的单个实例或意图的FLAG_ACTIVITY_SINGLE_TOP）。你能解释一下我做错了什么以及如何修复它？谢谢。

Alarm.java

private void notification(){
    Intent intentNotification=new Intent(this.getApplicationContext(),Alarm.class);
    intentNotification.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); // Not working
    PendingIntent pendingIntentNotification=PendingIntent.getActivity(this,0,intentNotification,0);
    Notification notification=new Notification.Builder(this)
    .setContentTitle("Alarm")
    .setContentText("Next alarm: "+hourString+":"+minuteString)
    .setContentIntent(pendingIntentNotification)
    .setAutoCancel(false)
    .setSmallIcon(R.mipmap.ic_launcher)
    .build();
    notificationManager.notify(0,notification);
    }
@Override
protected void onCreate(Bundle savedInstanceState) {
    context = this;
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_alarm);
    vibrationsSwitch = findViewById(R.id.vibrationsSwitch);
    timePicker = findViewById(R.id.timePicker);
    noteButton = findViewById(R.id.noteButton);
    saveButton = findViewById(R.id.saveButton);
    cancelButton = findViewById(R.id.cancelButton);
    wifiCheckBox = findViewById(R.id.wifiCheckBox);
    soundCheckBox = findViewById(R.id.soundCheckBox);
    bluetoothCheckBox = findViewById(R.id.bluetoothCheckBox);
    wiFi = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
    mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
    alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    setmVibrator((Vibrator) getSystemService(Context.VIBRATOR_SERVICE));
    intent = new Intent(this, AlarmReceiver.class);
    timePicker.setIs24HourView(true);
    setCancelButton((Button) findViewById(R.id.cancelButton));
    setSaveButton((Button) findViewById(R.id.saveButton));
    initControls();
    saveButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Calendar calendar = Calendar.getInstance();
            if (Build.VERSION.SDK_INT >= 23) {
                calendar.set(Calendar.HOUR_OF_DAY, timePicker.getHour());
                calendar.set(Calendar.MINUTE, timePicker.getMinute());
                calendar.set(Calendar.SECOND, 0);
                calendar.set(Calendar.MILLISECOND, 0);
                hour = timePicker.getHour();
                minute = timePicker.getMinute();
            } else {
                calendar.set(Calendar.HOUR_OF_DAY, timePicker.getCurrentHour());
                calendar.set(Calendar.MINUTE, timePicker.getCurrentMinute());
                calendar.set(Calendar.SECOND, 0);
                calendar.set(Calendar.MILLISECOND, 0);
                hour = timePicker.getCurrentHour();
                minute = timePicker.getCurrentMinute();
            }
            hourString = String.valueOf(hour);
            minuteString = String.valueOf(minute);
            if (hour == 0)
                hourString = "0" + hourString;
            if (minute < 10)
                minuteString = "0" + minuteString;
            intent.putExtra("extra", "on");
            if (calendar.before(Calendar.getInstance()))
                calendar.add(Calendar.DATE, 1);
            setAlarm(calendar.getTimeInMillis());
            notification();
            saveButton.setVisibility(View.INVISIBLE);
            cancelButton.setVisibility(View.VISIBLE);

        }
    });

    cancelButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            cancelButton();
            cancelButton.setVisibility(View.INVISIBLE);
            saveButton.setVisibility(View.VISIBLE);
        }
    });
    noteButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            alertDialog();
        }
    });

}

private void setAlarm(long timeInMillis) {
    pendingIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        this.alarmManager.setExactAndAllowWhileIdle(
                AlarmManager.RTC_WAKEUP,
                timeInMillis,
                pendingIntent
        );
    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        this.alarmManager.setExact(
                AlarmManager.RTC_WAKEUP,
                timeInMillis,
                pendingIntent
        );
    } else {
        this.alarmManager.set(
                AlarmManager.RTC_WAKEUP,
                timeInMillis,
                pendingIntent
        );
    }
}

RingtoneService.java

public class RingtoneService extends Service {
    private MediaPlayer mediaPlayer;
    private AudioManager audioManager;
    private static int currentVolume;
    private static int maxVolume;
    private static int ringerMode;
    boolean isRunning;
    int startId;
@Override
    public void onDestroy() {
        this.isRunning = false;
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    public int onStartCommand(Intent intent, int flags, int startId) {
        String state = intent.getExtras().getString("extra");
        assert state != null;
        switch (state) {
            case "on":
                startId = 1;
                break;
            case "off":
                startId = 0;
                break;
            default:
                startId = 0;
                break;
        }
        Alarm alarm = new Alarm();
        if (!this.isRunning && startId == 1) {
            audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
            setCurrentVolume(audioManager.getStreamVolume(AudioManager.STREAM_MUSIC));
            setMaxVolume(audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC));
            setRingerMode(audioManager.getRingerMode());
            mediaPlayer = MediaPlayer.create(this, Settings.System.DEFAULT_RINGTONE_URI);
            mediaPlayer.setLooping(true);
//            audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, getMaxVolume(), getMaxVolume());
//            audioManager.setRingerMode(getRingerMode());
            alarm.setVibrationsSwitch();
            mediaPlayer.start();
            notificationFiringAlarm(this);
            this.isRunning = true;
            this.startId = 0;
        } else if (this.isRunning && startId == 0) {
            mediaPlayer.stop();
            alarm.turnOffVibrations();
            mediaPlayer.reset();
            this.isRunning = false;
            this.startId = 0;
        } else if (!this.isRunning && startId == 0) {
            this.isRunning = false;
            this.startId = 0;
        } else if (this.isRunning && startId == 1) {
            this.isRunning = true;
            this.startId = 1;
        }

        return START_NOT_STICKY;
    }
}