krupalshah

    public static void setStringPreference(Context context, String key, String value) {
        edit(context, (editor) -> editor.putString(key, value));
    }

krupalshah

    private static void edit(Context context, Performer<SharedPreferences.Editor> performer) {
        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
        SharedPreferences.Editor editor = sharedPreferences.edit();
        performer.performOperation(editor);
        editor.apply();
    }

    public interface Performer<T> {
        void performOperation(T victim);
    }

krupalshah

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

/**
 * helper for shared prefs - java version
 */