Generic Preference Helper to save some lines of code managing shared preferences

PreferenceHelper.java

/*
 * Copyright (C) 2016 Olmo Gallegos Hernández.
 *
 * 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.
 */
package com.mycompany.myapp.datasource.sharedpreference;

import android.content.Context;
import android.content.SharedPreferences;

public class PreferenceHelper {
    public static final String PREFERENCES = "myapp_preferences";

    // Getters
    private static SharedPreferences getPreferences(Context ctx) {
        return ctx.getSharedPreferences(PREFERENCES, 0);
    }

    public static String getString(Context ctx, String key) {
        SharedPreferences prefs = getPreferences(ctx);
        return prefs.getString(key, "");
    }

    public static int getInt(Context ctx, String key) {
        SharedPreferences prefs = getPreferences(ctx);
        return prefs.getInt(key, 0);
    }

    public static long getLong(Context ctx, String key) {
        SharedPreferences prefs = getPreferences(ctx);
        return prefs.getLong(key, 0L);
    }

    public static boolean getBoolean(Context ctx, String key) {
        SharedPreferences prefs = getPreferences(ctx);
        return prefs.getBoolean(key, false);
    }

    public static float getFloat(Context ctx, String key) {
        SharedPreferences prefs = getPreferences(ctx);
        return prefs.getFloat(key, 0f);
    }

    // Setters

    public static void putString(Context ctx, String key, String value) {
        SharedPreferences.Editor editor = getPreferences(ctx).edit();
        editor.putString(key, value).apply();
    }

    public static void putBoolean(Context ctx, String key, boolean value) {
        SharedPreferences.Editor editor = getPreferences(ctx).edit();
        editor.putBoolean(key, value).apply();
    }

    public static void putLong(Context ctx, String key, long value) {
        SharedPreferences.Editor editor = getPreferences(ctx).edit();
        editor.putLong(key, value).apply();
    }

    public static void putInt(Context ctx, String key, int value) {
        SharedPreferences.Editor editor = getPreferences(ctx).edit();
        editor.putInt(key, value).apply();
    }

    public static void putFloat(Context ctx, String key, float value) {
        SharedPreferences.Editor editor = getPreferences(ctx).edit();
        editor.putFloat(key, value).apply();
    }

    public static void remove(Context ctx, String key) {
        SharedPreferences.Editor editor = getPreferences(ctx).edit();
        editor.remove(key).apply();
    }

    public static void clear(Context ctx) {
        SharedPreferences.Editor editor = getPreferences(ctx).edit();
        editor.clear().apply();
    }

}

Usage:

private static final String PREFERENCE_CALIBRATION_COMPLETED = "calibrationCompleted";

@Override
public void setCalibrationCompleted(boolean value) {
    PreferenceHelper.putBoolean(context, PREFERENCE_CALIBRATION_COMPLETED, value);

}

@Override
public boolean isCalibrationCompleted() {
    return PreferenceHelper.getBoolean(context, PREFERENCE_CALIBRATION_COMPLETED);
}