package com.phicdy.totoanticipation.model.storage;

import android.content.Context;
import android.content.SharedPreferences;
import android.support.annotation.NonNull;

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.phicdy.totoanticipation.model.Game;
import com.phicdy.totoanticipation.model.Toto;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class SettingStorageImpl implements SettingStorage {

    private SharedPreferences preferences;
    private static final String KEY_PREF = "keyPrefSetting";
    private static final String KEY_NOTIFY_DEADLINE = "keyNotifyDeadline";
    public SettingStorageImpl(@NonNull Context context) {
        preferences = context.getSharedPreferences(KEY_PREF, Context.MODE_PRIVATE);
    }

    @Override
    public boolean isDeadlineNotify() {
        return preferences.getBoolean(KEY_NOTIFY_DEADLINE, false);
    }

    @Override
    public void setDeadlineNotify(boolean isEnabled) {
        preferences.edit().putBoolean(KEY_NOTIFY_DEADLINE, isEnabled).apply();
    }
}

package com.phicdy.totoanticipation.model.storage;

import android.content.Context;
import android.content.SharedPreferences;
import android.support.annotation.NonNull;

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.phicdy.totoanticipation.model.Game;
import com.phicdy.totoanticipation.model.Toto;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class SettingStorageImpl implements SettingStorage {

    private SharedPreferences preferences;
    private static final String KEY_PREF = "keyPrefSetting";
    private static final String KEY_NOTIFY_DEADLINE = "keyNotifyDeadline";
    public SettingStorageImpl(@NonNull Context context) {
        preferences = context.getSharedPreferences(KEY_PREF, Context.MODE_PRIVATE);
    }

    @Override
    public boolean isDeadlineNotify() {
        return preferences.getBoolean(KEY_NOTIFY_DEADLINE, true);
    }

    @Override
    public void setDeadlineNotify(boolean isEnabled) {
        preferences.edit().putBoolean(KEY_NOTIFY_DEADLINE, isEnabled).apply();
    }
}

Change default deadline notify setting to true
Change default deadline notify setting to true
