Preferences.kt

import android.content.SharedPreferences
import androidx.preference.PreferenceManager

/**
 * @author ketzalv
 * @version 1.0
 * Need add library this dependency to gradle
 * { implementation 'androidx.preference:preference-ktx:1.1.1' }
 */
object Preferences {
    private val preferences: SharedPreferences =
        PreferenceManager.getDefaultSharedPreferences(context)//general Context of app example App.instance

    private fun saveData(key: String, data: String) {
        val editor = preferences.edit()
        editor.putString(key, data)
        editor.apply()
    }

    private fun saveDataBool(key: String?, data: Boolean) {
        val editor = preferences.edit()
        editor.putBoolean(key, data)
        editor.apply()
    }

    private fun saveString(key: String, data: String) {
        val editor = preferences.edit()
        editor.putString(key, data)
        editor.apply()
    }

    private fun saveLong(key: String, data: Long) {
        val editor = preferences.edit()
        editor.putLong(key, data)
        editor.apply()
    }

    private fun containsData(key: String?): Boolean {
        return preferences.contains(key)
    }

    private fun loadBoolean(key: String?): Boolean {
        return preferences.getBoolean(key, false)
    }

    private fun loadLong(key: String?): Long {
        return preferences.getLong(key, 0)
    }

    private fun loadString(key: String?): String? {
        return preferences.getString(key, "")
    }

    private fun clearPreferences() {
        val editor = preferences.edit()
        editor.clear()
        editor.apply()
    }

    private fun clearPreference(key: String?) {
        val editor = preferences.edit()
        editor.remove(key)
        editor.apply()
    }

}