In first (MainActivity) I save data trough SharedPreferences:
Editor editor = mGameSettings.edit();
editor.putString(GAME_PREFERENCES_SHOP, Shops.get(lv.getCheckedItemPosition()));
editor.commit();
And I can read this data from MainActivity after restart application:
if (mGameSettings.contains(GAME_PREFERENCES_SHOP))
Tv2.setText(mGameSettings.getString(GAME_PREFERENCES_SHOP, ""));
But how to read and edit this SharedPreferences from other activity?