krupalshah

object PreferenceHelper {

    fun defaultPrefs(context: Context): SharedPreferences
            = PreferenceManager.getDefaultSharedPreferences(context)

    fun customPrefs(context: Context, name: String): SharedPreferences
            = context.getSharedPreferences(name, Context.MODE_PRIVATE)

    inline fun SharedPreferences.edit(operation: (SharedPreferences.Editor) -> Unit) {
        val editor = this.edit()

krupalshah

        val prefs = defaultPrefs(this)
        prefs[Consts.SharedPrefs.KEY] = "any_type_of_value" //setter
        val value: String? = prefs[Consts.SharedPrefs.KEY] //getter
        val anotherValue: Int? = prefs[Consts.SharedPrefs.KEY, 10] //getter with default value

krupalshah

package com.experiments.preferencehelper

import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.util.Log
import com.experiments.preferencehelper.PreferenceHelper.get
import com.experiments.preferencehelper.PreferenceHelper.set

class MainActivity : AppCompatActivity() {