SharePrefUtils

SharePrefUtils.java

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


public class SharePrefUtils {

    //list of your keys here
    public static final String IS_FIRST_LAUNCH = "is first launch";

    private static SharedPreferences getSharePreference(Context context) {
//        return context.getSharedPreferences("your_pref",Context.MODE_PRIVATE);
        return PreferenceManager.getDefaultSharedPreferences(context);
    }

    private static SharedPreferences.Editor getEditor(Context context) {
        return getSharePreference(context).edit();
    }

    public static boolean contain(Context context, String key) {
        return getSharePreference(context).contains(key);
    }

    public static void remove(Context context, String key) {
        getSharePreference(context).edit().remove(key).apply();
    }

    public static void removeAll(Context context) {
        getSharePreference(context).edit().clear().apply();
    }

    public static void save(Context context, String key, Object value) {
        if (value instanceof Integer) {
            getEditor(context).putInt(key, (Integer) value).apply();
        } else if (value instanceof String) {
            getEditor(context).putString(key, value.toString()).apply();
        } else if (value instanceof Boolean) {
            getEditor(context).putBoolean(key, (Boolean) value).apply();
        } else if (value instanceof Long) {
            getEditor(context).putLong(key, (Long) value).apply();
        } else if (value instanceof Float) {
            getEditor(context).putFloat(key, (Float) value).apply();
        } else if (value instanceof Double) {
            getEditor(context).putLong(key, Double.doubleToRawLongBits((double) value)).apply();
        }
    }

    public static Object get(Context context, String key, Object defaultValue) {
        try {
            if (defaultValue instanceof String) {
                return getSharePreference(context).getString(key, defaultValue.toString());
            } else if (defaultValue instanceof Integer) {
                return getSharePreference(context).getInt(key, (Integer) defaultValue);
            } else if (defaultValue instanceof Boolean) {
                return getSharePreference(context).getBoolean(key, (Boolean) defaultValue);
            } else if (defaultValue instanceof Long) {
                return getSharePreference(context).getLong(key, (Long) defaultValue);
            } else if (defaultValue instanceof Float) {
                return getSharePreference(context).getFloat(key, (Float) defaultValue);
            } else if (defaultValue instanceof Double) {
                return Double.longBitsToDouble(getSharePreference(context).getLong(key, Double.doubleToLongBits((double) defaultValue)));
            }
        } catch (Exception e) {
            Log.e("Exception", e.getMessage());
            return defaultValue;
        }
        return defaultValue;
    }

//    //Save json object
//    public static void saveObject(Context context, Key key, Object obj){
//        Gson gson = new Gson();
//        String json = gson.toJson(obj);
//        getEditor(context).putString(key.name(), json).apply();
//    }
//
//    public static <T> T getObject(Context context, Key key, Class<T> clazz){
//        Gson gson = new Gson();
//        String json = getSharePreference(context).getString(key.name(), "");
//        return gson.fromJson(json, clazz);
//    }
}