SharedPreferenceUtil.java

package com.core.storage;

import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;

import java.util.Map;
import java.util.Set;

/**
 * @author Milap Tank
 *         Email:[email protected]
 * @desc SharedPreferenceUtil.java is for
 * @since 13/09/17  11:47 PM
 */

public class SharedPreferenceUtil {
    
    //https://www.dropbox.com/s/zai0vy1jcm271m8/main.zip?dl=0

    private static SharedPreferences sharedPreferences = null;

    private static SharedPreferences.Editor editor = null;

    /**
     * Initialize the SharedPreferences instance for the app.
     * This method must be called before using any
     * other methods of this class.
     *
     * @param context {@link Context}
     */
    public static void init(Context context) {

        if (sharedPreferences == null) {
            sharedPreferences = PreferenceManager
                    .getDefaultSharedPreferences(context);
            editor = sharedPreferences.edit();
        }

    }

    /**
     * Initialize the SharedPreferences instance for the app.
     * This method must be called before using any
     * other methods of this class.
     *
     * @param context {@link Context}
     * @param name    name of preference {@link String }
     * @param mode    mode of preference
     */

  /*  public static void init(Context context, String name, int mode) {

        if (sharedPreferences == null) {
            sharedPreferences = context.getSharedPreferences(name, mode);
            editor = sharedPreferences.edit();
        }

    }*/

    /**
     * Initialize the SharedPreferences instance for the app.
     * This method must be called before using any
     * other methods of this class.
     *
     * @param context {@link Context}
     * @param name    name of preference {@link String }
     */
 /*   public static void init(Context context, String name) {
        init(context, name, MODE_PRIVATE);
    }*/

    /**
     * Puts new Key and its Values into SharedPreference map.
     *
     * @param key   SharedPreference key
     * @param value Set StringSet
     */
    public static void putValue(String key, Set<String> value) {
        editor.putStringSet(key, value);
    }


    /**
     * Puts new Key and its Values into SharedPreference map.
     *
     * @param key   SharedPreference key
     * @param value Save String value
     */
    public static void putValue(String key, String value) {
        editor.putString(key, value);

    }

    /**
     * Puts new Key and its Values into SharedPreference map.
     *
     * @param key   SharedPreference key
     * @param value save int value
     */
    public static void putValue(String key, int value) {
        editor.putInt(key, value);
    }

    /**
     * Puts new Key and its Values into SharedPreference map.
     *
     * @param key   SharedPreference key
     * @param value save long value
     */
    public static void putValue(String key, long value) {
        editor.putLong(key, value);
    }

    /**
     * Puts new Key and its Values into SharedPreference map.
     *
     * @param key   SharedPreference key
     * @param value save boolean value
     */
    public static void putValue(String key, boolean value) {
        editor.putBoolean(key, value);
    }

    /**
     * saves the values from the editor to the SharedPreference and it is must
     */
    public static void save() {
        editor.apply();
    }

    /**
     * returns a values associated with a Key default value ""
     *
     * @return String
     */
    public static String getString(String key, String defValue) {
        return sharedPreferences.getString(key, defValue);
    }

    /**
     * returns a values associated with a Key default value ""
     *
     * @return String Set
     */
    public static Set<String> getStringSet(String key, Set<String> defValue) {
        return sharedPreferences.getStringSet(key, defValue);
    }

    /**
     * returns a values associated with a Key default value -1
     *
     * @return String
     */
    public static int getInt(String key, int defValue) {
        return sharedPreferences.getInt(key, defValue);
    }

    /**
     * returns a values associated with a Key default value -1
     *
     * @return String
     */
    public static long getLong(String key, long defValue) {
        return sharedPreferences.getLong(key, defValue);
    }

    /**
     * returns a values associated with a Key default value false
     *
     * @return String
     */
    public static boolean getBoolean(String key, boolean defValue) {
        return sharedPreferences.getBoolean(key, defValue);
    }

    /**
     * Checks if key is exist in SharedPreference
     *
     * @param key SharedPreference key
     * @return boolean
     */
    public static boolean contains(String key) {
        return sharedPreferences.contains(key);
    }


    /**
     * @param key SharedPreference key
     * @return
     */
    public static void remove(String key) {
        editor.remove(key);
        editor.apply();
    }


    /**
     * returns map of all the key value pair available in SharedPreference
     *
     * @return Map<String, ?>
     */
    public static Map<String, ?> getAll() {
        return sharedPreferences.getAll();
    }

    public static void clear() {
        editor.clear();
        editor.apply();
    }

}