Save a set of strings to SharedPreferences

gistfile1.java

public void setStringSet(int keyResId, Set<String> values) {
    String key = mContext.getString(keyResId);
    SharedPreferences.Editor editor = mSharedPreferences.edit();
    
    if (Build.VERSION.SDK_INT >= 11) {
        editor.putStringSet(key, values);
    } else {
        Gson gson = new Gson();
        String jsonValue = gson.toJson(values);
        editor.putString(key, value);
    }
    
    editor.apply();
}